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.
3.7-4.2 V8 EA824 family: AEW, ABZ, BFL, BFM, AXQ, BVJ, CDRA, BAR.
Specifications
| Production years | 1995-1998 |
| Displacement, cc | 3697 |
| Fuel system | distributed injection |
| Power output, hp | 230 |
| Torque output, Nm | 315 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 84.5 |
| Piston stroke, mm | 82.4 |
| Compression ratio | 10.8 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | belt & 2 chains |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 7.5 |
| Fuel type | petrol |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for Audi A8 quattro 1996) — city — highway — combined |
19.6 9.0 12.9 |
| Engine lifespan, km | ~310 000 |
| Weight, kg | 195 |
The engine was installed on:
- Audi A8 D2 (4D) in 1995 – 1998.
Disadvantages of the Audi AEW engine
- Like any aluminum block engine, it is afraid of overheating and bad gas;
- Savings on maintenance and frequent overheating lead to scoring;
- The use of low-quality oil often results in the sound of hydraulic lifters;
- Monitor the condition of the timing belt, as with its breakage, the valves most often bend;
- Lubrication leaks are also regularly encountered, and especially at the junction of the motor with the gearbox.
Frequently asked questions about the Audi AEW
How much power does the Audi AEW make?
The Audi AEW develops 230 hp and 315 Nm of torque.
How much oil does the Audi AEW take and which one?
Engine oil capacity: 7.5 liters. Recommended oil: 5W-30.
Does the Audi AEW have a timing belt or chain?
Timing drive of the Audi AEW: belt & 2 chains.
Is the Audi AEW turbocharged?
No, the Audi AEW is naturally aspirated.
Does the Audi AEW need valve clearance adjustment?
No, the Audi AEW has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Audi AEW last?
The typical lifespan of the Audi AEW is ~310 000 km with proper maintenance.
What is the fuel consumption of the Audi AEW?
Audi A8 quattro 1996: city 19.6, highway 9.0, combined 12.9 L/100 km.
What cars was the Audi AEW installed on?
Audi A8 D2 (4D) in 1995 - 1998.
What are the common problems of the Audi AEW?
Like any aluminum block engine, it is afraid of overheating and bad gas. Savings on maintenance and frequent overheating lead to scoring. All known problems.
