The 2.8-liter Audi AAH 2.8 V6 gasoline engine was produced by the concern from 1990 to 1997 and was installed on the most popular models of the German company such as 80, 100, A4, A6 or A8. This power unit was known in some markets under a completely different AFC index.
EA835 family: ABC, AAH, ALF, BDV, ARE, ACK, ALG, BBJ, ASN.
Specifications
| Production years | 1990-1997 |
| Displacement, cc | 2771 |
| Fuel system | injector |
| Power output, hp | 174 |
| Torque output, Nm | 245 |
| Cylinder block | cast iron V6 |
| Block head | aluminum 12v |
| Cylinder bore, mm | 82.5 |
| Piston stroke, mm | 86.4 |
| Compression ratio | 10.3 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.0 |
| Fuel type | petrol |
| Euro standards | EURO 2 |
| Fuel consumption, L/100 km (for Audi 100 1993) — city — highway — combined |
12.9 7.4 9.0 |
| Engine lifespan, km | ~350 000 |
| Weight, kg | 161 |
The engine was installed on:
- Audi 80 B4 (8C) in 1991 – 1995;
- Audi 100 C4 (4A) in 1990 – 1994;
- Audi A4 B5 (8D) in 1994 – 1997;
- Audi A6 C4 (4A) in 1994 – 1997;
- Audi A8 D2 (4D) in 1994 – 1996;
- Audi 90 B4 (8C) in 1993 – 1995 (USA).
Disadvantages of the Audi AAH engine
- The main complaints of car owners with such an engine are related to oil consumption.
- Oil consumption due to the occurrence of rings begins after 150,000 km and increases with mileage.
- Also, grease likes to ooze from gaskets and seals, especially after overheating.
- The timing belt is designed for about 90 thousand km, and when it breaks, the valves always bend.
- Floating revolutions are usually caused by contamination of the idle control valve.
Frequently asked questions about the Audi AAH
How much power does the Audi AAH make?
The Audi AAH develops 174 hp and 245 Nm of torque.
How much oil does the Audi AAH take and which one?
Engine oil capacity: 5.0 liters. Recommended oil: 5W-30.
Does the Audi AAH have a timing belt or chain?
The Audi AAH uses a timing belt.
Is the Audi AAH turbocharged?
No, the Audi AAH is naturally aspirated.
Does the Audi AAH need valve clearance adjustment?
No, the Audi AAH has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Audi AAH last?
The typical lifespan of the Audi AAH is ~350 000 km with proper maintenance.
What is the fuel consumption of the Audi AAH?
Audi 100 1993: city 12.9, highway 7.4, combined 9.0 L/100 km.
What cars was the Audi AAH installed on?
Audi 80 B4 (8C) in 1991 - 1995; Audi 100 C4 (4A) in 1990 - 1994; Audi A4 B5 (8D) in 1994 - 1997; Audi A6 C4 (4A) in 1994 - 1997; Audi A8 D2 (4D) in 1994 - 1996; Audi 90 B4 (8C) in 1993 - 1995 (USA).
What are the common problems of the Audi AAH?
The main complaints of car owners with such an engine are related to oil consumption. Oil consumption due to the occurrence of rings begins after 150,000 km and increases with mileage. All known problems.
