EA824 or Audi V8 engines: specifications, motor oil, fuel consumption

EA824 or Audi V8 engines

Audi EA824 8-cylinder engine line debuted in 1988 with the Audi V8 and has since grown into an impressive family of nearly a hundred different models. This series is divided into three generations: conventional injection MPI, direct FSI, turbocharged TFSI.

1st generation Audi V8 engines

In 1988, the group's first 3.6-liter 8-cylinder engine debuted on the Audi V8 model. This is a V-shaped engine with distributed fuel injection, an aluminum cylinder block, two 16-valve cylinder heads with hydraulic lifters and a very interesting timing drive: there is one, but a very long belt and a pair of short chains between the camshafts. In 1992, a 4.2-liter unit appeared, and in 1995, a 3.7-liter engine instead of 3.6 liters.

In the first line there were 10 engines, which essentially differed only in displacement:

PT (distributed injection, 250 hp / 340 Nm) for Audi V8 D1 (4C);

AEW (distributed injection, 230 hp / 315 Nm) for Audi A8 D2 (4D);

AKJ (distributed injection, 230 hp / 315 Nm) for Audi A8 D2 (4D);

ABH (distributed injection, 280 hp / 400 Nm) for Audi V8 D1 (4C), S4 C4 (4A);

AEC (distributed injection, 290 hp / 400 Nm) for Audi S6 C4 (4A);

AHK (distributed injection, 326 hp / 400 Nm) for Audi S6 C4 (4A);

AEM (distributed injection, 245 hp / 400 Nm) for Audi A8 D2 (4D);

AGH (distributed injection, 285 hp / 400 Nm) for Audi A8 D2 (4D);

ABZ (distributed injection, 300 hp / 400 Nm) for Audi A8 D2 (4D);

AKG (distributed injection, 300 hp / 400 Nm) for Audi A8 D2 (4D);

AHC (distributed injection, 340 hp / 410 Nm) for Audi S8 D2 (4D);

AKH (distributed injection, 340 hp / 410 Nm) for Audi S8 D2 (4D).

In 1998, an updated version of the V-shaped 8-cylinder engine debuted on the Audi A8. There were many differences, but the main ones were the new block heads with 5 valves per cylinder and hydraulic chain tensioners, which acted as a variable valve timing system. Also in the series there were modifications with twin turbocharging for the RS6 and RS6 Plus models.

In the second line of the EA824 family, there were more than three dozen different power units:

AKC (distributed injection, 260 hp / 350 Nm) for Audi A8 D2 (4D);

AQG (distributed injection, 260 hp / 350 Nm) for Audi A8 D2 (4D);

BFL (distributed injection, 280 hp / 360 Nm) for Audi A8 D3 (4E);

BBK (distributed injection, 344 hp / 410 Nm) for Audi S4 B6 (8E), S4 B7 (8E);

BHF (distributed injection, 344 hp / 410 Nm) for Audi S4 B7 (8E);

ARS (distributed injection, 300 hp / 400 Nm) for Audi A6 C5 (4B);

ART (distributed injection, 300 hp / 400 Nm) for Audi A6 C5 (4B);

ASG (distributed injection, 300 hp / 400 Nm) for Audi A6 C5 (4B);

AWN (distributed injection, 300 hp / 400 Nm) for Audi A6 C5 (4B);

BAS (distributed injection, 300 hp / 400 Nm) for Audi A6 C5 Allroad (4B);

ANK (distributed injection, 340 hp / 420 Nm) for Audi S6 C5 (4B);

AQJ (distributed injection, 340 hp / 420 Nm) for Audi S6 C5 (4B);

BBD (distributed injection, 340 hp / 420 Nm) for Audi S6 C5 (4B);

BAT (distributed injection, 335 hp / 420 Nm) for Audi A6 C6 (4F);

BNK (distributed injection, 335 hp / 420 Nm) for Audi A6 C6 (4F);

AUX (distributed injection, 310 hp / 410 Nm) for Audi A8 D2 (4D);

AKB (distributed injection, 310 hp / 410 Nm) for Audi A8 D2 (4D);

AQF (distributed injection, 310 hp / 410 Nm) for Audi A8 D2 (4D);

AUW (distributed injection, 310 hp / 410 Nm) for Audi A8 D2 (4D);

AQH (distributed injection, 360 hp / 430 Nm) for Audi S8 D2 (4D);

AVP (distributed injection, 360 hp / 430 Nm) for Audi S8 D2 (4D);

AYS (distributed injection, 360 hp / 430 Nm) for Audi S8 D2 (4D);

BCS (distributed injection, 360 hp / 430 Nm) for Audi S8 D2 (4D);

BGK (distributed injection, 335 hp / 430 Nm) for Audi A8 D3 (4E);

BFM (distributed injection, 335 hp / 430 Nm) for Audi A8 D3 (4E);

AXQ (distributed injection, 310 hp / 410 Nm) for VW Touareg 1 (7L);

BGH (distributed injection, 335 hp / 430 Nm) for VW Phaeton 1 (3D);

BGJ (distributed injection, 335 hp / 430 Nm) for VW Phaeton 1 (3D);

BCY (distributed injection, 450 hp / 560 Nm) for Audi RS6 C5 (4B);

BRV (distributed injection, 480 hp / 560 Nm) for Audi RS6 C5 (4B).

2nd generation Audi V8 FSI engines

In 2005, the second generation of the V8 engine appeared, equipped with direct fuel injection. It already has a slightly different aluminum block with alusil coating on the cylinder walls, a pair of aluminum DOHC cylinder heads with hydraulic compensators, a complex timing drive of four chains and a conventional VVT type variable valve timing system on all four camshafts. Also based on the 8-cylinder engine, a similar 10-cylinder unit of 5.2 liters was created.

This line includes nine different V8 and V10 powertrains with a volume of 4.2 and 5.2 liters:

BVJ (direct injection, 350 hp / 440 Nm) for Audi A6 C6 (4F), A8 D3 (4E);

CDRA (direct injection, 372 hp / 445 Nm) for Audi A8 D4 (4H);

BNS (direct injection, 420 hp / 430 Nm) for Audi RS4 B7 (8E);

CAUA (direct injection, 354 hp / 440 Nm) for Audi S5 1 (8T);

CFSA (direct injection, 450 hp / 430 Nm) for Audi RS4 B8 (8K), RS5 1 (8T);

BAR (direct injection, 350 hp / 440 Nm) for Audi Q7 1 (4L), VW Touareg 1 (7L);

CGNA (direct injection, 360 hp / 445 Nm) for VW Touareg 2 (7P);

BXA (direct injection, 435 hp / 540 Nm) for Audi S6 C6 (4F);

BSM (direct injection, 435 hp / 540 Nm) for Audi S8 D3 (4E).

3rd generation Audi V8 TFSI engines

In 2012, a new representative of the concern’s line of 8-cylinder engines was introduced. The main difference from its predecessor was the dual turbocharging system in the camber of the block. The rest is the same, but with a slightly smaller displacement, an aluminum cylinder block with alusil coating instead of liners, a pair of aluminum DOHC cylinder heads with hydraulic compensators, phase regulators on all shafts, an FSI direct injection system and a timing drive of four chains. Thanks to the presence of the AVS system, it is possible to turn off some of the cylinders without load.

At this point, there are ten different motors in the line, but it still continues to grow:

CEUC (direct injection, 420 hp / 550 Nm) for Audi S6 C7 (4G), S7 C7 (4G);

CTGE (direct injection, 450 hp / 550 Nm) for Audi S6 C7 (4G), S7 C7 (4G);

CRDB (direct injection, 560 hp / 700 Nm) for Audi RS6 C7 (4G), RS7 C7 (4G);

CWUB (direct injection, 560 hp / 700 Nm) for Audi RS6 C7 (4G), RS7 C7 (4G);

CWUC (direct injection, 605 hp / 700 Nm) for Audi RS6 C7 (4G), RS7 C7 (4G);

CEUA (direct injection, 420 hp / 600 Nm) for Audi A8 D4 (4H);

CTGA (direct injection, 435 hp / 600 Nm) for Audi A8 D4 (4H);

CGTA (direct injection, 520 hp / 650 Nm) for Audi A8 D4 (4H);

CTFA (direct injection, 520 hp / 650 Nm) for Audi S8 D4 (4H);

DDTA (direct injection, 605 hp / 750 Nm) for Audi S8 D4 (4H).

Engine Audi BFL

The 3.7-liter V8 Audi BFL engine was produced at the concern’s enterprises from 2002 to 2006 and was installed only on the pre-restyling modification of the A8 executive sedan in the D3 body. This engine was distinguished from its predecessor by the presence of new cylinder heads with 5 valves per cylinder.

Engine Audi AEW

The 3.7-liter Audi AEW engine or the 3.7-liter A8 D2 engine was produced from 1995 to 1998 and was installed on the front and all-wheel drive versions of the popular A8 model in the D2 body. There is a similar motor with the AKJ index and slight differences in the injection system.

Engine Audi ABZ

The 4.2-liter Audi V8 ABZ or A8 D2 4.2 quattro engine was produced from 1994 to 1998 and was installed on all-wheel drive versions of the famous A8 sedan in the D2 body. This motor was aggregated with a 4-speed automatic transmission, and an AKG engine similar to it with a 5-speed one.

Engine Audi BFM

The company assembled the 4.2-liter Audi BFM or A8 D3 4.2 quattro engine from 2002 to 2006 and installed it only on all-wheel drive modifications of the famous A8 sedan in the D3 body. There was a version of this power unit with a volume of 3.7 liters and its own BFL index.

Engine Volkswagen AXQ

The 4.2-liter Volkswagen AXQ or Touareg V8 4.2 engine was produced from 2002 to 2006 and was installed on the first generation of the popular Touareg SUV before restyling. After restyling, this engine gave way to a direct fuel injection engine with the BAR index.

Engine Audi BVJ

The 4.2-liter Audi BVJ or A6 4.2 FSI engine was produced by the company from 2006 to 2010 and was installed on such well-known models as the A6 and A8, including the Allroad off-road version. An updated modification of this engine with the CDRA index was installed on the A8 sedans in the back of …

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Engine Audi CDRA

The 4.2-liter Audi CDRA or A8 4.2 FSI engine was produced by the concern from 2009 to 2012 and was installed only on the popular A8 sedan in the D4 body before its restyling. A similar motor on the second generation of the Touareg crossover has its own CGNA index.

Engine Audi BAR

The 4.2-liter Audi BAR or Q7 4.2 FSI engine was produced by the company from 2005 to 2010 and was installed on such well-known crossovers as the Audi Q7 and the first generation Volkswagen Touareg. On the second generation of the Touareg, an updated version of this engine with the CGNA index is found.

Engine Audi CRDB

The 4.0-liter Audi CRDB or RS7 4.0 TFSI engine was produced by the company from 2013 to 2018 and was installed on such charged models of the German concern as the RS6 or RS7 in the C7 body. There were even more powerful Performance modifications with a 605-horsepower CWUC unit.

Engine Audi CEUA

The company produced the 4.0-liter Audi CEUA or A8 4.0 TFSI engine from 2012 to 2013 and installed it on charged versions of the popular A8 sedan in the D4 body before restyling. After restyling the model, this engine gave way to a more powerful engine under the CTGA index.