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List of discontinued Volkswagen Group petrol engines. The spark-ignition petrol engines listed below were formerly installed in various marques of automobiles and commercial vehicles, along with Volkswagen Industrial Motor applications, of the Germanmarker automotive industry conglomerate and holding company - Volkswagen Group (VWAG), but are now discontinued. All listed engines operate on the four-stroke cycle, and unless stated otherwise, use a wet sump lubrication system, and are water cooled.


Since the Volkswagen Group is European, official internal combustion engine performance ratings are published using the International System of Units (commonly abbreviated "SI"), a modern form of the metric system of figures. Motor vehicle engines will have been tested by a Deutsches Institut für Normung (DIN) accredited testing facility, to either the original 80/1269/EEC, or the later 1999/99/ECmarker standards. The standard initial measuring unit for establishing the rated motive power output is the kilowatt (kW); and in their official literature, the power rating may be published in either the kW, or the 'Pferdestärke' (PS), or both, and may also include conversions to imperial units such as the horsepower (hp) or brake horsepower (bhp). (Conversions: one PS ≈ 735.5 watts (W), ≈ 0.98632 hp (SAE)). (The PS figure is sometimes incorrectly referred to as 'metric horsepower'). In case of conflict, the metric power figure of kilowatts (kW) will be stated as the primary figure of reference. For the turning force generated by the engine, the Newton metre (Nm) will be the reference figure of torque. Furthermore, in accordance with European automotive traditions, engines shall be listed in the following ascending order of preference:
  1. Number of cylinders,
  2. Engine displacement (in litres),
  3. Engine configuration, and
  4. Rated motive power output (in kilowatts).


The petrol engines which Volkswagen Group are currently manufactured and installed in today's vehicles can be found in the list of Volkswagen Group petrol engines article.

Air cooled petrols

The Volkswagen air cooled engine was introduced in 1936 in Germanymarker, produced in factories all over the world, and the last complete engine was produced in 2006 in Brazilmarker. Its' air cooled, four cylinder, boxer configuration was unique in its day for a production automobile, but has gone on to power millions of vehicles around the world, being considered one of the most reliable automotive engines of all eras.

Water cooled 'boxer' petrols

The Volkswagen wasserboxer was an horizontally opposed or 'boxer' water cooled four cylinder petrol engine. It was introduced in 1982, and was produced for ten years, ending in 1992. The wasserboxer was only used in the Volkswagen Type 2 (T3 Transporter / Caravelle / Vanagon / T25).

Four cylinder EA111 petrols

The EA111 series of internal combustion engines was introduced in the mid 1970s in the Audi 50, and shortly after in the original Volkswagen Polo. It is a series of water cooled inline three- and inline four-cylinder petrol and diesel engines, in a variety of displacement sizes. This overhead camshaft engine features a crossflow cylinder head design, and directly-driven auxiliary units. The exhaust side is in driving direction, closest to the front of the vehicle.

0.8 25kW

engine ID code: HE
engine displacement and engine configuration: 0.8 litre inline-four engine; bore: , stroke: ??.? (stroke ratio: ?.??:1), ???.? cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, two valves per cylinder, each with two concentric valve springs, belt-driven single overhead camshaft (SOHC)
fuel system: carburettor
DIN rated motive power and torque output:
application: VW Polo (01/76-07/78)


0.9 29kW

engine ID code: HA
engine displacement and engine configuration: inline-four engine; bore: , stroke: (stroke ratio: 1.18:1 - oversquare/short-stroke), 224.7 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, two valves per cylinder, each with two concentric valve springs, belt-driven single overhead camshaft (SOHC)
fuel system: carburettor
DIN rated motive power and torque output: @ 5,200 rpm; @ 3,200 rpm
applications: Audi 50 (04/75-09/81), VW Polo (04/75-09/81)


1.0 16v 51kW

identification: parts code prefix: 036, engine ID code(s): AST, AVZ
engine displacement and engine configuration: inline-four engine; bore: , stroke: (stroke ratio: 0.95:1 - undersquare/long-stroke), 249.8 cc per cylinder, compression ratio: 10.8:1
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, four valves per cylinder, 16 valves total, bucket tappets, belt-driven double overhead camshaft (DOHC)
fuel system: common rail electronic sequential multi-point fuel injection with four intake manifold-sited fuel injectors; Total Flex Gasoline or Ethanol on Brazilian variants
DIN rated motive power and torque output
@ 5,750 rpm; @ 4,250 rpm
applications: SEAT Ibiza, SEAT Cordoba


1.0 16v Turbo 82kW

engine displacement and engine configuration: inline-four engine; bore: , stroke: (stroke ratio: 0.95:1 - undersquare/long-stroke), 249.8 cc per cylinder, compression ratio: 8.5:1
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, four valves per cylinder, double overhead camshaft (DOHC), intake variable valve timing
aspiration: Garrett GT12 turbocharger, intercooler
fuel system & engine management: electronic multi-point fuel injection, Bosch Motronic ME 3.8.3 engine control unit
DIN rated motive power and torque output: @ 5,500 rpm; @ 4,500 rpm
applications: VW Gol, VW Parati


1.05 33-37kW

identification: parts code prefix: 030, engine ID codes: GL, HZ, AAK, AAU, ACM, AEV
engine displacement and engine configuration: inline-four engine; bore: , stroke: (stroke ratio: 1.27:1 - oversquare/short-stroke), 260.7 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings, forged steel crankshaft
cylinder head and valvetrain: cast aluminium alloy, two valves per cylinder, 8 valves total, two concentric valve springs per valve, bucket tappets, belt-driven forged or cast steel single overhead camshaft (SOHC)
fuel system & engine management: Pierburg 1B3 or Weber 32 TLA/32 TL carburettor, later with throttle body-sited electronic single-point fuel injection (SPI) and Bosch Mono-Jetronic or Mono-Motronic engine control unit
DIN rated motive power and torque outputs - carburettor
- GL
@ 5,600 rpm - ACM
- HZ
DIN rated motive power and torque outputs - SPI
@ 5,200 rpm; @ 2,800 rpm - AAK, AAU, ACM, AEV
applications: VW Polo (GL: 08/81-10/86, HZ: 08/85-01/92, AAK: 01/90-07/90, AAU: 10/90-07/94, ACM: 02/92-12/92, AEV: 10/94-06/96), VW Derby (GL: 10/81-11/84), VW Golf (HZ: 05/85-10/91), VW Jetta (HZ: 08/86-10/91, AAK: 01/90-07/90), SEAT Ibiza Mk2 (02/93-06/96)


1.1 37-44kW

engine ID codes: HB, HC, HD
engine displacement and engine configuration: inline-four engine; bore: , stroke: (stroke ratio: 0.97:1 - undersquare/long-stroke), 273.2 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, two valves per cylinder, single overhead camshaft (SOHC), compression ratio: 8.8:1
fuel system: Solex carburettor
DIN rated motive power and torque outputs
HB: @ 5,200 rpm; @ 2,800 rpm
HD:
HC:
applications: Audi 50, VW Polo Mk1, VW Derby


1.3 Škoda

This engine was originally developed by Škoda Auto, before the company was acquired by Volkswagen Group (VWAG), and is therefore NOT an EA111 engine. However, this engine was used in some Škodas after the takeover by VWAG.
engine displacement and engine configuration: inline-four engine; bore x stroke (mm): 75.5 x ???, 322.2 cc per cylinder
cylinder block and crankcase: grey cast iron, three main bearings, duplex chain-driven camshaft
cylinder head and valvetrain: grey cast iron, two valves per cylinder with twin valve springs, overhead valve (OHV) with pushrods and rocker shaft
fuel system & engine management
Pierburg 2E-E Ecotronic single-barrel carburettor
Pierburg Ecotronic dual-barrel carburettor
Bosch electronic single-point fuel injection (SPI), Bosch Mono-Motronic engine control unit
rated motive power and torque output (see Škoda Favorit article for detailed variations)
135 - @ 5,000 rpm; @ 3,000-3,250 rpm
135 - @ 5,000 rpm; @ 3,000-3,250 rpm (from 1993, with catalytic converter)
136 - @ 5,000 rpm; @ 3,000-3,750 rpm
136 - @ 5,500 rpm; @ 3,000-3,750 rpm (from 1993, with catalytic converter)
applications: Škoda Favorit 135, Škoda Favorit 136, Škoda Felicia


1.3 40-55kW

engine displacement and engine configuration: inline-four engine; bore x stroke (mm): 75.0 x 72.0, 318.0 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, two valves per cylinder, single overhead camshaft (SOHC)
fuel system & engine management: carburettor, later with electronic single-point fuel injection (SPI) and Bosch L-Jetronic or Mono-Motronic engine control unit
DIN rated motive power and torque outputs
@ 5,200 rpm; @ 2,800 rpm (carb.)
@ 5,000 rpm; @ 3,000 rpm (SPI)
@ 5,900 rpm; @ 3,200 rpm (MPI, or 'GT')
application: VW Polo


1.3 40kW

engine displacement and engine configuration: inline-four engine; bore x stroke (mm): 76.5 x 70.6, 324.5 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, two valves per cylinder, single overhead camshaft (SOHC), compression ratio: 9.5:1
fuel system & engine management: electronic single-point fuel injection (SPI), Bosch Mono-Jetronic engine control unit
DIN rated motive power and torque output: @ 5,200 rpm; @ 2,800 rpm
applications: VW Polo, VW Golf


1.3 G40 85kW

engine ID code: PY
engine displacement and engine configuration: inline-four engine; bore x stroke (mm): 75.0 x 72.0, 318.0 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings, forged steel crankshaft, cast pistons with increased size gudgeon pins
cylinder head and valvetrain: cast aluminium alloy with post-production heat treatment, two valves per cylinder with two concentric valve springs, belt-driven forged steel single overhead camshaft (SOHC), compression ratio: 8.0:1
aspiration: dual V belt-driven G-Lader scroll-type supercharger with 40 mm diameter inlet, side-mounted intercooler
fuel system & engine management: common rail electronic multi-point fuel injection, Bosch Digifant engine control unit
DIN rated motive power and torque output: @ 5,500 rpm; @ 3,500 rpm
application: VW Polo Mk2 GT G40 (08/86-07/94)
reference:


1.4 44kW

engine displacement and engine configuration: / inline-four engine; bore x stroke (mm): 75.0 x 78.7 / 79.14, 347.7 / 349.5 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, two valves per cylinder, single overhead camshaft (SOHC), compression ratio: 8.8:1
fuel system & engine management: electronic single-point fuel injection (SPI) and Bosch Mono-Jetronic engine control unit, later electronic multi-point fuel injection (MPI)
DIN rated motive power and torque outputs
@ 5,200 rpm; @ 2,800 rpm
@ 4,700 rpm; @ 2,800 rpm
applications: VW Polo, VW Golf


1.4 44kW

engine displacement and engine configuration: inline-four engine; bore x stroke (mm): 76.5 x 75.6 (1.01 ratio), 347.5 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, two valves per cylinder, single overhead camshaft (SOHC)
fuel system: electronic multi-point fuel injection (MPI)
DIN rated motive power and torque output: @ 4,700 rpm; @ 2,800 rpm
applications: VW Polo, VW Golf


1.4 Škoda

This engine was originally developed by Škoda Auto, before the company was acquired by Volkswagen Group (VWAG), and is therefore NOT an EA111 engine. However, this engine was used in some Škodas after the takeover by VWAG.
engine displacement and engine configuration: inline-four engine; bore x stroke (mm): 75.5 x 78.0, 349.25 cc per cylinder
cylinder block and crankcase: grey cast iron, three main bearings, duplex chain-driven camshaft
cylinder head and valvetrain: grey cast iron, two valves per cylinder, overhead valve (OHV) with pushrods and rocker shaft
fuel system & engine management
Multi-point fuel injection
DIN rated motive power and torque output
@ 5,000 rpm; @ 2,600 rpm - AZE, AZF
@ 4,500 rpm; @ 2,500 rpm - AMD
@ 5,000 rpm; @ 2,500 rpm - AQW, AME, ATZ
applications: Škoda Fabia Mk1, Škoda Octavia Mk1


1.4 FSI 63-77kW

engine displacement and engine configuration: inline-four engine; bore x stroke (mm): 76.5 x 75.6 (1.01 ratio), 347.5 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, four valves per cylinder, double overhead camshaft (DOHC), compression ratio: 12.0:1
fuel system: common rail electronic multi-point Fuel Stratified Injection (FSI) homogeneous direct petrol injection, up to 110 bar high-pressure fuel pump, stratified-charge combustion at partial load
aspiration: two-position tumble flap in the intake manifold controlling the turbulence
exhaust: up to 35% exhaust gas recirculation, NOx storage-type catalytic converter
engine management: Bosch Motronic MED 7
DIN rated motive power and torque outputs
@ 5,000 rpm; @ 3,750 rpm: VW Polo Mk4 - AXU
@ 5,200 rpm; @ 3,750 rpm: VW Golf Mk5 (-05/05) - BKG, BLN
@ 6,200 rpm; @ 4,250 rpm: VW Lupo FSI - ARR


1.6 55kW

engine ID code(s): 1F, ABU
engine displacement and engine configuration: inline-four engine; bore x stroke (mm): 76.5 x 86.9 (0.88 ratio), 399.5 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, two valves per cylinder, single overhead camshaft (SOHC)
fuel system & engine management
electronic single-point fuel injection (SPI), Bosch Mono-Jetronic engine control unit
electronic multi-point fuel injection (MPI), Magneti Marelli engine control unit
DIN rated motive power and torque outputs
SPI: @ 5,200 rpm; @ 2,800 rpm
MPI: @ 4,500 rpm; @ 3,500 rpm
application: VW Polo, VW Golf, SEAT Ibiza Mk2, Škoda Felicia


1.6 FSI 81-85kW

engine displacement and engine configuration: inline-four engine; bore x stroke (mm): 76.5 x 86.9 (0.88 ratio), 399.5 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, four valves per cylinder, belt-driven double overhead camshaft (DOHC), compression ratio: 12.0:1
fuel system: common rail electronic multi-point Fuel Stratified Injection (FSI) homogeneous direct petrol injection, up to 110 bar high-pressure fuel pump, stratified-charge combustion at partial load
aspiration: cast aluminium alloy intake manifold, two-position tumble flap controlling the turbulence
exhaust: up to 35% exhaust gas recirculation, NOx storage-type catalytic converter
engine management: Bosch Motronic MED 7
DIN rated motive power and torque output:
@ 5,800 rpm; @ 4,400 rpm: Audi A2, Volkswagen Golf Mk4, Volkswagen Bora, Volkswagen Jetta Mk4 - BAD
@ 6,000 rpm; @ 4,000 rpm: Audi A3 Mk2, Škoda Octavia Mk2, Volkswagen Golf Mk5, Volkswagen Jetta Mk5, Volkswagen Eos, Volkswagen Touran, Volkswagen Passat B6 - BAG, BLF, BLP
references:


1.6 16v 88-92kW (GTI)

engine displacement and engine configuration: inline-four engine; bore x stroke (mm): 76.5 x 86.9 (0.88 ratio), 399.5 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings
cylinder head and valvetrain: cast aluminium alloy, four valves per cylinder, double overhead camshaft (DOHC)
fuel system & engine management: electronic multi-point fuel injection (MPI), Bosch Motronic engine control unit
DIN rated motive power and torque outputs and engine ID codes
@ 6,200 rpm; @ 4,000 rpm - AJV
@ 6,500 rpm; @ 3,300 rpm - ARC, AVY
applications: VW Polo GTI, VW Lupo GTI; VW GX3


1.8 G60 118-154kW

engine ID codes: 1H, PG
engine displacement and engine configuration: inline-four engine; bore x stroke (mm): 81.0 x 86.4, 445.2 cc per cylinder
cylinder block and crankcase: grey cast iron, five main bearings, forged steel crankshaft, cast pistons with increased size gudgeon pins
cylinder head and valvetrain: cast aluminium alloy with post-production heat treatment, two valves per cylinder (8 valves total) with two concentric valve springs, sodium cooled exhaust valves, automatic hydraulic valve clearance compensation, belt-driven forged steel single overhead camshaft (SOHC), compression ratio: 8.0:1
cylinder head - VW Golf Mk2 Limited 4WD: cast aluminium alloy with post-production heat treatment, four valves per cylinder (16 valves total) with two concentric valve springs, sodium cooled exhaust valves, automatic hydraulic valve clearance compensation, belt-driven forged steel single overhead camshaft (SOHC)
aspiration: dual V belt-driven G-Lader scroll-type supercharger with 60 mm diameter inlet and electronically controlled boost regulation, side-mounted intercooler
aspiration - VW Golf Mk2 Limited 4WD: dual V belt-driven G-Lader scroll-type supercharger with 60 mm diameter inlet and electronically controlled boost regulation, front-mounted intercooler
fuel system & engine management: common rail electronic multi-point fuel injection, Bosch Digifant engine control unit, knock sensor
DIN rated motive power and torque outputs & applications
@ 5,800 rpm; @ 4,000 rpm - VW Golf Mk2 G60 (08/88-07/89), VW Passat G60 (08/88-07/93), VW Corrado G60 (09/88-07/93)
@ 6,300 rpm - VW Golf Mk2 Limited 4WD (this version was a 'homologation special', and does not appear in any offical VWAG parts catalogues)
reference:


Four cylinder EA827/EA113 petrols

1.8 55-72kW

engine displacement & engine configuration: inline four; bore: , stroke:
cylinder block & crankcase: grey cast iron, five main bearings
cylinder head & valvetrain: aluminium alloy, two valves per cylinder, bucket tappets, single overhead camshaft (SOHC)
fuel system: electronic sequential single-point fuel injection
DIN rated output:
@ 5,000 rpm; @ 2,500 rpm - AAM, ANN
@ 5,200 rpm; @ 3,000 rpm - RP
@ 5,500 rpm; @ 2,500 rpm - ABS, ADZ, ANP, ACC, ADD
@ 5,400 rpm; @ 3,000 rpm - 1P
applications: Audi 80, Audi 100, SEAT Ibiza Mk2, SEAT Córdoba Mk1, SEAT Toledo Mk1, Volkswagen Golf Mk2, Volkswagen Golf Mk3, Volkswagen Golf Mk3 Cabriolet, Volkswagen Golf Mk3 Variant, Volkswagen Vento, Volkswagen Jetta Mk2, Volkswagen Jetta Mk3, Volkswagen Passat B2, Volkswagen Passat B3, Volkswagen Passat B4


1.8 82kW

engine ID codes: DZ
engine displacement & engine configuration: inline four; bore: , stroke:
cylinder block & crankcase: grey cast iron, five main bearings
cylinder head & valvetrain: aluminium alloy, two valves per cylinder, bucket tappets, single overhead camshaft (SOHC)
fuel system: electronic sequential multi-point fuel injection
DIN rated output:
applications: Audi 80 (01/83-12/91), Audi 90 (08/89-12/91), Audi Coupé (08/86-07/91)


1.8 20v 92kW

This is a normally aspirated version of the 1.8 20vT.
engine ID codes: AGN / APG / ADR / ARG / APT / AVV
engine displacement & engine configuration: inline four; bore: , stroke:
cylinder block & crankcase: grey cast iron, five main bearings
cylinder head & valvetrain: aluminium alloy, five valves per cylinder, bucket tappets, double overhead camshaft (DOHC)
fuel system & engine management: electronic sequential multi-point fuel injection, 95 RON/ROZ unleaded; Bosch Motronic ME 7.5 electronic engine control unit
DIN rated outputs
@ 5,800 rpm; @ 3,500 rpm
@ 6,000 rpm; @ 4,200 rpm
@ 5,800 rpm; @ 3,950 rpm
applications: Audi A3 (AGN:09/96-08/00, APG:11/99-06/03), Audi A4 (ADR:11/94-04/99, ARG:07/98-11/01, APT:02/99-09/01, AVV:06/00-09/01), Audi Cabriolet (ADR:04/97-08/00), Audi A6 (ADR:10/95-11/97), SEAT León (AGN:11/99-12/03, APG:06/00-10/05), SEAT Toledo (AGN:10/98-12/03, APG:06/00-07/04), Škoda Octavia (AGN:10/96-1999), Volkswagen Passat (ADR:12/96-01/99, APT:01/99-08/00, ARG:02/99-08/00), Volkswagen Golf Mk3 (AGN:10/97-11/00), Volkswagen Bora (AGN:02/99-10/00)


2.0 16v 100-110kW

engine ID codes: ABF, 9A
engine displacement and engine configuration: inline-four engine; bore: , stroke: (stroke ratio: 0.89:1 - undersquare/long-stroke), 496.0 cc per cylinder
cylinder block and crankcase: CG25 grey cast iron, five main bearings, forged steel connecting rods
cylinder head and valvetrain: cast aluminium alloy, four valves per cylinder, 16 valves total, double overhead camshaft (DOHC)
aspiration: cast aluminium alloy intake manifold
engine management: Siemens 5WP4 304 (Golf & Ibiza) CIS-E, or Bosch Motronic, or Digifant (ABF) engine control units
DIN rated motive power and torque outputs
9A: @ 5,800 rpm; @ 3,500 rpm (CIS-E & Motronic)
ABF: @ 6,000 rpm; @ 4,800 rpm (ABF)
applications: SEAT Ibiza Mk2 GTI , SEAT Ibiza Mk3 Sport, SEAT Toledo, VW Golf Mk2, VW Vento, VW Golf Mk3 GTI


2.0 20v 96kW

engine ID code: ALT
configuration: inline four, bore x stroke (mm): 82.5 x 92.8
cylinder block: grey cast iron, five main bearings, contra-rotating balancer shaft, forged steel connecting rods
cylinder head: aluminium alloy, five valves per cylinder, bucket tappets, double overhead camshaft (DOHC), continuous intake camshaft adjustment
aspiration: two-position variable cast aluminium alloy intake manifold
fuel system: electronic sequential multi-point fuel injection, 95 RON/ROZ unleaded
management: Bosch Motronic
rated output: @ 5,700 rpm; @ 3,300 rpm
applications: Audi A4 (12/00-06/08), Audi A6 (06/01-01/05), Volkswagen Passat (11/01-05/05)


Five cylinder petrols

1.9 67-76kW

engine ID code: WN
engine displacement & engine configuration: , inline five cylinder; bore: , stroke: ; 384.2 cc per cylinder
cylinder block & crankcase: grey cast iron, six main bearings
cylinder head & valvetrain: two valves per cylinder, 10 valves in total, single overhead camshaft (SOHC)
fuel system: carburettor
DIN rated motive power and torque output: to
applications: Audi 90, Audi 100, Audi Coupé, VW Passat, VW Santana


2.0 85-118kW

engine ID code: JS
engine displacement & engine configuration: , inline five cylinder; bore: , stroke: ; 398.8 cc per cylinder
cylinder block & crankcase: grey cast iron, six main bearings
cylinder head & valvetrain
2v two valves per cylinder, 10 valves in total, single overhead camshaft (SOHC)
4v four valves per cylinder, 20 valves in total, double overhead camshaft (DOHC)
fuel system: Bosch K/KE-Jetronic
DIN rated motive power and torque outputs
2v:
4v:
applications: Audi 90, Audi 100, Audi 200, Audi Coupé


2.1 85-100kW

engine displacement & engine configuration: , inline five cylinder; bore: , stroke: ; 428.8 cc per cylinder
cylinder block & crankcase: grey cast iron, six main bearings
cylinder head & valvetrain: two valves per cylinder, 10 valves in total, single overhead camshaft (SOHC)
fuel system: Bosch K/KE-Jetronic
DIN rated motive power and torque outputs
2v:
turbo:
applications: Audi 90, Audi 100, Audi 200, Audi Coupé


2.1 85-147kW

engine displacement & engine configuration: , inline five cylinder; bore: , stroke: ; 428.8 cc per cylinder
cylinder block & crankcase: grey cast iron, six main bearings
cylinder head & valvetrain
2v two valves per cylinder, 10 valves in total, single overhead camshaft (SOHC)
4v four valves per cylinder, 20 valves in total, double overhead camshaft (DOHC)
fuel system: Bosch K/KE-Jetronic
DIN rated motive power and torque outputs
2v:
turbo:
applications: Audi 90, Audi 100, Audi 200, Audi Coupé


2.1 T 125-147kW

engine displacement & engine configuration: , inline five cylinder; bore: , stroke: ; 428.8 cc per cylinder
cylinder block & crankcase: grey cast iron, six main bearings
cylinder head & valvetrain: two valves per cylinder, 10 valves in total, single overhead camshaft (SOHC)
aspiration: turbocharger, intercooler
fuel system: Bosch K/KE-Jetronic
DIN rated motive power and torque outputs
2v:
turbo:
applications: Audi 90, Audi 100, Audi Coupé


2.2 98kW

engine ID code: KV
engine displacement & engine configuration: , inline five cylinder; bore: , stroke: ; 445.2 cc per cylinder
cylinder block & crankcase: grey cast iron, six main bearings
cylinder head & valvetrain: two valves per cylinder, 10 valves in total, single overhead camshaft (SOHC)
fuel system: multi-point electronic fuel injection
DIN rated motive power and torque output:
applications: Audi 90 (06/84-12/91), Audi Coupé (08/84-07/91)


2.2 20v T 169kW

engine displacement & engine configuration: , inline five cylinder; bore: , stroke: ; 445.2 cc per cylinder, oil cooler
cylinder block & crankcase: grey cast iron, six main bearings
cylinder head & valvetrain: four valves per cylinder, 20 valves in total, double overhead camshaft (DOHC), compression ratio: 9.30:1
aspiration: turbocharger, intercooler
engine management: Bosch Motronic electronic engine control unit (ECU), multi-point electronic fuel injection
DIN rated motive power and torque output: @ 5,900 rpm; @ 1,950 rpm
applications: Audi 200, Audi S2, Audi S4, Audi S6


2.2 20v T 232kW (RS2)

engine ID code: ADU
engine displacement & engine configuration: , inline five cylinder; bore: , stroke: ; 445.2 cc per cylinder, oil cooler
cylinder block & crankcase: grey cast iron, six main bearings
cylinder head & valvetrain: four valves per cylinder each with two concentric valve springs, 20 valves in total, toothed belt and simplex chain-driven (hybrid system) double overhead camshaft (DOHC), compression ratio: 9.00:1
aspiration: water cooled turbocharger, front mounted intercooler
fueling, ignition & engine management: common rail multi-point electronic fuel injection, two LAZ pre-power output stage control units and five single spark ignition coils with Bosch spark plugs, Bosch Motronic electronic engine control unit (ECU), powered by PORSCHE
DIN rated motive power and torque output: @ 6,500 rpm; (41.8 kgm) @ 3,000 rpm
application: Audi RS2 Avant (03/94-07/95)


2.3 98-125kW

engine ID codes: 10v: NG, AAR; 20v: 7A
engine displacement & engine configuration: , inline five cylinder; bore: , stroke: ; 461.8 cc per cylinder
cylinder block & crankcase: grey cast iron, six main bearings
cylinder head & valvetrain
2v two valves per cylinder, 10 valves in total, single overhead camshaft (SOHC), compression ratio: 10.1:1
4v four valves per cylinder, 20 valves in total, double overhead camshaft (DOHC), compression ratio: 10.3:1
fuel system: Bosch KE-Jetronic
DIN rated motive power and torque outputs
2v NG/AAR: @ 5,500 rpm; @ 3,500 rpm
?v NF: - Audi Duo
4v 7A: @ 6,200 rpm
applications: Audi 80 (NG: 09/91-11/94), Audi 90 (NG: 04/87-12/91, 7A: 06/88-12/91), Audi 100 (NF: 08/86-12/90), Audi Coupé (NG: 08/86-07/94, 7A: 11/88-07/91), Audi Cabriolet ( ), Audi 100 (AAR: 12/90-07/94), Audi A6 (AAR: 06/94-06/96)


2.3 VR5 110-125kW

engine ID codes: 10v: AGZ; 20v: AQN, AZX
engine displacement & engine configuration: VR5 engine; bore: , stroke: , (0.9 ratio), 464.8 cc per cylinder
cylinder block & crankcase: grey cast iron, six main bearings
cylinder head & valvetrain
10v cast aluminium alloy, two valves per cylinder, 10 valves in total, double overhead camshaft (DOHC)
20v cast aluminium alloy, four valves per cylinder, 20 valves in total, double overhead camshaft (DOHC), compression ratio: 10.8:1
aspiration: variable intake manifold, tubular exhaust manifold
fuel system: multi-point electronic fuel injection
DIN rated motive power and torque outputs
10v AGZ: @ 6,000 rpm; @ 3,200 rpm - from 1997
20v AQN/AQN: @ 6,200 rpm; @ 3,300 rpm - from 2001
applications: VW New Beetle, VW Golf, VW Bora, VW Passat


2.5 75-85kW

engine ID codes: AAF, ACU, AEN, AET, AEU, APL, AVT, AXL
engine displacement & engine configuration: , inline five cylinder; bore: , stroke: ; 491.8 cc per cylinder
cylinder block & crankcase: grey cast iron, six main bearings
cylinder head & valvetrain: two valves per cylinder each with two concentric valve springs, 10 valves in total, belt-driven single overhead camshaft (SOHC)
fuel system & engine management: common rail multi-point electronic fuel injection system with intake manifold-sited fuel injectors; Digifant electronic engine control unit (ECU) with Bosch distributor
DIN rated motive power and torque outputs
AXL:
AAF/ACU/AEN/AEU:
AET/APL/AVT: @ 4,500 rpm; @ 2,400 rpm
applications: VW Transporter (AAF: 09/90-12/93, ACU: 01/94-10/96, AEN: 05/95-12/95, AET: 08/96-06/03, AEU: 08/96-06/03, APL: 05/99-12/99, AVT: 12/99-06/03, AXL: 04/01-06/03), VW California (AAF: 09/90-07/93, ACU: 08/93-10/96, AEU: 08/96-04/02, AET: 08/96-09/03, APL: 05/99-12/99, AVT: 12/99-04/02, AXL: 04/01-06/03)


Six cylinder petrols

2.4 V6 125kW

engine ID code:
engine displacement & engine configuration: 90° V6 engine; bore x stroke (mm): 81.0 x 77.4 (0.91 ratio); 398.8 cc per cylinder
cylinder block & crankcase: grey cast iron
cylinder heads & valvetrain: five valves per cylinder, 30 valves total, 2x double overhead camshaft (2xDOHC - two overhead camshafts per cylinder bank), compression ratio: 10.5:1
fuel system & engine management: electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors, Bosch Motronic electronic engine control unit (ECU); 95 RON/ROZ (91 AKI) EuroPremium (regular) unleaded recommended for optimum performance and fuel economy
DIN rated motive power and torque output: @ 6,000 rpm; @ 3,200 rpm
applications: Audi 80, Audi Cabriolet, Audi 100, Audi A6


2.4 V6 130kW

The 2.4 V6 is a smaller version of the 3.2 V6 FSI - without the variable intake manifold and the FSI direct injection.
engine ID code: BDW
engine displacement & engine configuration: 90° V6 engine; bore x stroke (mm): 81.0 x 77.4 (0.91 ratio); 398.8 cc per cylinder
cylinder block & crankcase: cast aluminium alloy
cylinder heads & valvetrain: cast aluminium alloy; four valves per cylinder, 24 valves total, 2x simplex chain-driven double overhead camshafts (2xDOHC - two overhead camshafts per cylinder bank), continuously variable valve timing system both for intake and exhaust, compression ratio: 11.3:1
fuel system & engine management: common rail electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors, Bosch Motronic ME 7.X electronic engine control unit (ECU)
exhaust system: two ceramic catalytic converters
DIN rated motive power and torque output: @ 6,000 rpm (15.5 m/s piston speed); @ 3,000-5,000 rpm (12.1 bars MEP)
application: 2004 Audi A6 (04/04-09/08)
reference:


2.6 V6 102-110kW

engine ID codes: ABC, ACZ
engine displacement & engine configuration: 90° V6 engine; bore x stroke (mm): 82.5 x 81.0; 433.0 cc per cylinder
cylinder block & crankcase: grey cast iron, four main bearings
cylinder heads & valvetrain: two valves per cylinder each with two concentric valve springs, 12 valves total, 2x belt single overhead camshaft (2xSOHC - one overhead camshaft per cylinder bank), compression ratio: 10.3:1
aspiration: cast aluminium alloy intake manifold, two-stage dual-barrel throttle valve
fueling, ignition & engine management: common rail electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors; one LAZ pre-power output stage control units and one 6-way ignition coil with longlife spark plugs; Bosch 'MPFI' electronic engine control unit (ECU); 95 RON/ROZ (91 AKI) EuroPremium (regular) unleaded recommended for optimum performance and fuel economy
DIN rated motive power and torque outputs
ACZ: — Chinese market
ABC: @ 5,750 rpm; @ 3,000 rpm
applications: Audi 80 (ABC: 07/92-07/95), Audi Coupé (ABC: 08/92-12/95), Audi Cabriolet (ABC: 01/94-08/00), Audi 100 (ABC: 03/92-07/94), Audi A4 (ABC: 11/94-07/98), Audi A6 (ABC: 06/94-10/97)


2.7 T V6 169-195kW

engine ID codes: AGB, APB, ARE, AZB, BES
engine displacement & engine configuration: 90° V6 engine; bore x stroke (mm): 81.0 x 86.4; 445.1 cc per cylinder
cylinder block & crankcase: grey cast iron, four main bearings
cylinder heads & valvetrain: five valves per cylinder, 30 valves total, , toothed belt and 2x simplex chain-driven (hybrid system) double overhead camshafts (2xDOHC - two overhead camshafts per cylinder bank), compression ratio: 9-9.9:1
aspiration: 'biturbo' with two side-mounted intercoolers
fuel system & engine management: common rail electronic multi-point sequential fuel injection with intake manifold-sited Siemens fuel injectors, six individual spark coils, Bosch Motronic ME 7.1 electronic engine control unit (ECU); 98 RON/ROZ (93 AKI) EuroSuperPlus (premium) unleaded recommended for maximum performance and fuel economy
DIN rated motive power and torque output & applications
@ 5,800 rpm; @ 1,750 rpm; in Audi A6
@ 5,800 rpm; @ 1,800 rpm; in Audi A6 allroad (ARE, BES)
@ 5,800 rpm; @ 1,800 rpm; in Audi S4 (APB North American market)
@ 5,800 rpm; @ 1,850 rpm; in Audi S4 (AGB, AZB)


2.7 T V6 280kW (RS4)

This engine was tuned by Cosworth Technologies, and featured enlarged intake and exhaust ports on the cylinder heads, two uprated parallel turbochargers, and two side-mounted intercoolers (SMICs), together with new induction and exhaust systems, and a re-calibrated engine management system. Due to the high performance nature of the vehicle, it was also fitted with a multi-baffled two-section oil sump to help prevent oil starvation during high g-force manoeuvres.
engine ID codes: ASJ (EU2 compliant), AZR (EU3 compliant)
engine displacement & engine configuration: 90° V6 engine; bore: , stroke: ; 445.1 cc per cylinder
cylinder block & crankcase: grey cast iron, four main bearings, forged steel crankshaft
cylinder heads & valvetrain: cast aluminium alloy; five valves per cylinder, 30 valves total, toothed belt and 2x simplex roller chain-driven (hybrid system) double overhead camshafts (2xDOHC - two overhead camshafts per cylinder bank), compression ratio: 9.0-9.2:1
aspiration: 'biturbo' with two intercoolers
fuel system, ignition & engine management: common rail electronic multi-point sequential fuel injection with intake manifold-sited Siemens fuel injectors, six individual spark coils, Bosch Motronic ME 7.1 electronic engine control unit (ECU); 98 RON/ROZ (93 AKI) EuroSuperPlus (premium) unleaded recommended for maximum performance and fuel economy
DIN rated motive power and torque output: @ 7,000 rpm; @ 2,500-6,000 rpm
application: Audi RS4 (ASJ: 06/00-10/00, AZR: 11/00-09/01)


2.8 V6 128kW

engine ID code: AAH, AFC
engine displacement & engine configuration: 90° V6 engine; bore: , stroke: (stroke ratio: 0.95:1); 461.8 cc per cylinder
cylinder block & crankcase: grey cast iron, four main bearings; two-part cast aluminium alloy oil sump
cylinder heads & valvetrain: cast aluminium alloy; two valves per cylinder each with two concentric valve springs (AFC has a single valve spring design), 12 valves total, automatic hydraulic valve-play compensation, 2x timing belt-driven single overhead camshafts (2xSOHC - one overhead camshaft per cylinder bank), compression ratio: 10.3:1 (AFC 10.0:1)
aspiration: hot-film mass airflow meter (MAF), two-stage dual-barrel throttle valve, two-part cast aluminium alloy variable length intake manifold (380 mm short path, 780 mm long path)
fueling, ignition & engine management: common rail electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors; one LAZ pre-power output stage control units and one 6-way ignition coil with longlife spark plugs; Bosch 'MMS' MPI electronic engine control unit (ECU) with cylinder selective knock control; 95 RON/ROZ (91 AKI) EuroPremium (regular) unleaded recommended for optimum performance and fuel economy
DIN rated motive power and torque output: @ 5,500 rpm; @ 3,000 rpm; redline: 6,700 rpm
Updates from AAH to AFC
Valvetrain differences between original AAH design and later AFC design include
:1) AFC camshaft provides different valve timing and is lighter. 2) AFC use single valve springs with less mass. 3) AFC inlet and exhaust valves have a smaller stem diameter with revised stem oil seals.
The AFC engine had a revised lubrication circuit and oil pan assembly, constructional detail includes
:1) AFCs use a larger oil filter. 2) AFC engine oil cooler has a larger cross-sectional area. 3) AFC engines oil pressure relief valve is integrated into a cover assembly. 4) AFC engines oil pickup is integrated into the upper section of the oil sump, with a revised lower oil sump gasket.
applications: Audi 80 / Audi 90 (AAH: 09/91-07/95 {North America: 01/92-05/95, AFC: 07/93-07/95}), Audi Coupé (AAH: 08/91-12/95), Audi Cabriolet (AAH: 11/92-08/00 {North America: 11/93-07/94, AFC: 08/94-07/98}), Audi 100 (AAH: 12/90-07/94 {North America: 10/91-07/94}), Audi A4 (AAH: 11/94-07/97 {North America: 06/94-07/95, AFC: 07/95-07/97}), Audi A6 (AAH: 06/94-10/97 {North America: 06/94-07/95}, AFC: 08/94-06/95 {North America: 08/94-10/97}), Audi A8 (AAH: 06/94-03/96)
reference:


2.8 VR6 12v 128kW

engine ID codes: AAA, AFP
engine displacement & engine configuration: 15° VR6 engine; bore x stroke (mm): 81.0 x 90.3 (ratio 0.9), 465.3 cc per cylinder
cylinder block & crankcase: grey cast iron, seven main bearings
cylinder head & valvetrain: cast aluminium alloy, two valves per cylinder, 12 valves total, double overhead camshaft (DOHC), compression ratio 10.5:1
fuel system & engine management: electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors, Bosch Motronic ME 7.1 electronic engine control unit (ECU); 95 RON/ROZ (91 AKI) EuroPremium (regular) unleaded recommended for optimum performance and fuel economy
DIN rated motive power and torque output: @ 5,800 rpm; @ 4,200 rpm
applications: VW Corrado, VW Golf Mk3, VW Golf Mk4, VW Jetta, VW Passat, VW Sharan, VW Transporter / Eurovan
awards
Was placed in the 1995 annual list of Ward's 10 Best Engines


2.8 V6 30v 142kW

engine ID code: ACK
engine displacement & engine configuration: 90° V6 engine; bore x stroke (mm): 82.5 x 86.4; 461.8 cc per cylinder
cylinder block & crankcase: grey cast iron
cylinder heads & valvetrain: five valves per cylinder, 30 valves total, 2x double overhead camshaft (2xDOHC - two overhead camshafts per cylinder bank), compression ratio: 10.5:1
aspiration: cast aluminium alloy two-position variable intake manifold
fuel system & engine management: electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors, Bosch Motronic electronic engine control unit (ECU); 95 RON/ROZ (91 AKI) EuroPremium (regular) unleaded recommended for optimum performance and fuel economy
DIN rated motive power and torque output: @ 6,000 rpm; @ 3,200 rpm
applications: Audi A4, Audi A6, Audi A8


2.8 VR6 24v 150kW

engine ID codes: AUE / AQP / AYL / BDE / BDF (USA)
engine displacement & engine configuration: 15° VR6 engine; bore x stroke (mm): 81 x 90.3 (ratio 0.9), 465.3 cc per cylinder
cylinder block & crankcase: grey cast iron, seven main bearings
cylinder head & valvetrain: cast aluminium alloy, four valves per cylinder, 24 valves total, double overhead camshaft (DOHC), compression ratio 10.7:1
fuel system & engine management: electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors, Bosch Motronic ME 7.1 electronic engine control unit (ECU); 95 RON/ROZ (91 AKI) EuroPremium (regular) unleaded recommended for optimum performance and fuel economy
DIN rated motive power and torque outputs
@ 6,200 rpm; @ 3,400 rpm
- BDF for USA-only Jetta (BDF: 10/01-06/04)
applications: VW Golf Mk4 (AUE: 01/00-04/01), VW Bora (AUE: 03/00-04/01), SEAT León Cupra 4 (AUE: 10/00-07/01), (BDE: 06/01-04/04), SEAT Alhambra (AUE, AYL: 06/00-04/02), VW Sharan (AYL: 04/00-05/08)


2.9 VR6 12v 140kW

engine ID code: ABV
engine displacement & engine configuration: 2.9 litre 15° VR6 engine; bore x stroke (mm): 82.0 x ???
cylinder block & crankcase: grey cast iron, seven main bearings
cylinder head & valvetrain: cast aluminium alloy, two valves per cylinder, 12 valves total, duplex chain-driven double overhead camshaft (DOHC)
fuel system & engine management: common rail electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors, Bosch Motronic ME 7.1 electronic engine control unit (ECU); 95 RON/ROZ (91 AKI) EuroPremium (regular) unleaded recommended for optimum performance and fuel economy
DIN rated motive power and torque outputs
- Corrado VR6, Golf Mk3 VR6
- Passat VR6
applications: VW Corrado (08/91-07/95), VW Golf Mk3 (10/94-12/97), VW Passat (10/94-12/96)


Eight cylinder petrols

All Volkswagen Group V8 petrol engines are primarily constructed from a lightweight, cast aluminium alloy cylinder block (crankcase) and cylinder heads. They all use multi-valve technology, with the valves being operated by two overhead camshafts per cylinder bank (sometimes referred to as 'quad cam'). All functions of engine control are carried out by varying types of Robert Bosch GmbH Motronic electronic engine control units. These engines have only been used in cars bearing the Audi marque; they are longitudinally front-mounted.

3.6 V8 184kW

engine ID code: PT
engine configuration: 90° V8 engine; bore x stroke (mm): 81.0 x 86.4; 445.2 cc per cylinder
cylinder block: cast aluminium alloy, five main bearings, forged steel crankshaft
cylinder heads & valvetrain: cast aluminium alloy, four valves per cylinder, 32 valves total, toothed belt and 2x simplex chain-driven (hybrid system) double overhead camshafts (2xDOHC - two overhead camshafts per cylinder bank), compression ratio: 10.6:1
fueling, ignition & engine management: common rail electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors, twin Hitachi ignition coils (one per cylinder bank) with Bosch longlife spark plugs, Bosch Motronic electronic engine control unit (ECU); 95 RON/ROZ (91 AKI) EuroPremium (regular) unleaded recommended for optimum performance and fuel economy
DIN rated motive power and torque output: @ 5,800 rpm; @ 4,000 rpm
application: Audi V8 (10/88-11/93)
references:


3.7 V8 169kW

engine ID codes: AEW, AKJ
engine configuration: 90° V8 engine; bore x stroke (mm): 84.5 x 82.4; 462.1 cc per cylinder
cylinder block: cast aluminium alloy, five main bearings, forged steel crankshaft
cylinder heads & valvetrain: cast aluminium alloy, four valves per cylinder, 32 valves total, toothed belt and 2x simplex chain-driven (hybrid system) double overhead camshafts (2xDOHC - two overhead camshafts per cylinder bank), compression ratio: 10.8:1
fueling, ignition & engine management: common rail electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors, twin LAZ pre-power output stage control units (one per cylinder bank) and eight single spark ignition coils with Bosch longlife spark plugs, Bosch Motronic electronic engine control unit (ECU); 95 RON/ROZ (91 AKI) EuroPremium (regular) unleaded recommended for optimum performance and fuel economy
DIN rated motive power and torque output: @ 5,500 rpm; @ 2,700 rpm
application: Audi A8 (AEW: 07/95-12/98, AKJ: 06/97-12/98)
references:


3.7 V8 40v 191-206kW

engine ID codes: AQG, AKC, BFL
engine configuration: 90° V8 engine; bore x stroke (mm): 84.5 x 82.4; 462.1 cc per cylinder
cylinder block: cast aluminium alloy, five main bearings, forged steel crankshaft
cylinder heads & valvetrain: cast aluminium alloy, five valves per cylinder, 40 valves total, low friction roller rocker fingers, toothed belt and 2x simplex chain-driven (hybrid system) hollow double overhead camshafts (2xDOHC - two overhead camshafts per cylinder bank), variable inlet camshaft timing, compression ratio: 11.0:1 (BFL: 11.3:1)
aspiration: 3-stage variable composite intake manifold
fueling, ignition & engine management: common rail electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors, eight single spark ignition coils with Bosch longlife spark plugs, Bosch Motronic electronic engine control unit (ECU); 95 RON/ROZ (91 AKI) EuroPremium (regular) unleaded recommended for optimum performance and fuel economy
DIN rated motive power and torque output - AQG, AKC: @ 6,000 rpm; @ 3,250 rpm
DIN rated motive power and torque output - BFL: @ 6,000 rpm; @ 3,750 rpm
application: Audi A8 (AQG: 10/98-02/01, AKC: 05/00-09/02), Audi A8 (BFL: 11/02-05/06)
references:



4.2 V8 206-220kW

engine ID code: ABH, ABZ, AKG, ARS, ASG, BAS
engine configuration: 90° V8 engine; bore x stroke (mm): 84.5 x 93.0; 521.5 cc per cylinder
cylinder block: cast aluminium alloy, five main bearings, forged steel crankshaft
cylinder heads & valvetrain: cast aluminium alloy, four valves per cylinder, 32 valves total, toothed belt and 2x simplex chain-driven (hybrid system) double overhead camshafts (2xDOHC - two overhead camshafts per cylinder bank), compression ratio: 10.3:1 (ABH: 10.8:1)
fuel system & engine management: common rail electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors, Bosch Motronic electronic engine control unit (ECU); 98 RON/ROZ (93 AKI) EuroSuperPlus (premium) unleaded recommended for maximum performance and fuel economy
dimensions: mass: depending on variant
DIN rated motive power and torque output - ABH: @ 5,800 rpm; @ 4,000 rpm
DIN rated motive power and torque outputs - ABZ, AKG, ARS, ASG, BAS: @ 6,000 rpm; @ 3,000 rpm
applications: Audi V8 (ABH: 08/91-11/99), Audi S4 (ABH: 10/92-07/94), Audi A6 (ARS: 04/99-05/01, ASG: 06/00-01/05, BAS: 04/03-08/05), Audi A8 (ABZ: 06/94-05/99, AKG: 06/97-12/98)
references:


4.2 V8 240-265kW

engine ID codes: AHC, AHK, AKH, AQH, AQJ, AVP, (Japan only: AYS, BCS)
engine displacement and engine configuration: 90° V8 engine; bore: , stroke: (stroke ratio: 0.91:1 - undersquare/long-stroke); 521.5 cc per cylinder
cylinder block and crankcase: cast aluminium alloy, five main bearings, forged steel crankshaft
cylinder heads and valvetrain: cast aluminium alloy, four valves per cylinder, 32 valves total, toothed belt and 2x simplex chain-driven (hybrid system) double overhead camshafts (2xDOHC - two overhead camshafts per cylinder bank - 'quad cam'), compression ratio: 11.0:1
fuel system & engine management: two linked common rail fuel distributor rails, electronic multi-point sequential indirect fuel injection with eight intake manifold-sited fuel injectors; Bosch Motronic electronic engine control unit (ECU); 98 RON/ROZ (93 AKI) EuroSuperPlus (premium) unleaded recommended for maximum performance and fuel economy
DIN rated motive power and torque outputs
AHK, Audi S6 Plus: @ 6,600 rpm; @ 3,500 rpm
AHC/AKH, Audi S8, AQJ, Audi S6: @ 6,600 rpm; @ 3,500 rpm
AQH/AVP/AYS/BCS, Audi S8: @ 7,000 rpm; @ 3,400 rpm
applications: Audi S6 Plus (AHK: 06/96-10/97), Audi S6 (AQJ: 09/99-05/01), Audi S8 (AHC: 09/96-12/98, AKH: 08/97-12/98, AQH: 05/99-02/01, AVP: 09/00-09/02, BCS: 09/00-02/01, AYS: 02/01-09/02)


4.2 V8 40v biturbo 331-353kW (RS6)

engine ID codes: BCY, BRV
engine configuration: 90° V8 engine; bore x stroke (mm): 84.5 x 93.0; 521.5 cc per cylinder
cylinder block: cast aluminium alloy, five main bearings, forged steel crankshaft
cylinder heads & valvetrain: cast aluminium alloy, five valves per cylinder (three inlet, and two sodium-cooled exhaust valves), 40 valves total, low-friction roller-bearing cam followers with automatic hydraulic valve clearance compensation, toothed belt and 2x simplex chain-driven (hybrid system) double overhead camshafts (2xDOHC - two overhead camshafts per cylinder bank), variable inlet camshaft timing, compression ratio: 9.8:1
fueling, ignition & engine management: common rail electronic multi-point sequential fuel injection with intake manifold-sited fuel injectors, eight individual single-spark ignition coils, NGK longlife spark plugs, Bosch Motronic ME 7.1.1 electronic engine control unit (ECU); 98 RON/ROZ (93 AKI) EuroSuperPlus (premium) unleaded recommended for maximum performance and fuel economy
aspiration & exhaust system: 'biturbo' - two fast-acting turbochargers (one per cylinder bank), two side-mounted intercoolers optimised to prevent pressure loss; dual-branch exhaust pipes with metallic-element catalytic converters, EU3 emissions standard
DIN rated motive power and torque outputs
BCY, C5 RS6: @ 5,700-6,400 rpm; @ 1,950-5,600 rpm
BRV, C5 RS6 Plus: @ 6,000-6,400 rpm; @ 1,950-6,000 rpm
application: Audi RS6 (BCY: 07/02-09/04, BRV: 04/04-09/04)
references:


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