The popular 100 C4 model in the 45th body and the comparable A6 both had the 2.0-liter mono-injection Audi AAE engine built at the factory between 1990 and 1996. The Mono-Motronic injection system is the cause of this motor’s low power.
The EA827 2.0l series includes: 2E, AAD, AAE, ABT, ABK, ADY, AGG, ABF, ACE.
Specifications
| Production years | 1990-1996 |
| Displacement, cc | 1984 |
| Fuel system | Mono-Motronic |
| Power output, hp | 101 |
| Torque output, Nm | 157 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 82.5 |
| Piston stroke, mm | 92.8 |
| Compression ratio | 9.2 |
| Features | SOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.0 |
| Fuel type | petrol |
| Euro standards | EURO 1 |
| Fuel consumption, L/100 km (for Audi 100 1991) — city — highway — combined |
10.7 6.4 7.8 |
| Engine lifespan, km | ~300 000 |
The engine was installed on:
- Audi 100 C4 (4A) in 1990 – 1994;
- Audi A6 C4 (4A) in 1994 – 1996.
Disadvantages of the Audi AAE engine
Mono-Motronic system malfunctions are the primary source of issues for owners;
The most common causes of unstable operation are sensor failure or air leakage.
Failure of the ignition system’s components comes in second in frequency;
An oil burner and knocking hydraulic lifters are frequently seen on long runs; the timing belt typically lasts 90,000 kilometers, but when it breaks, the valves typically do not bend.