From 1994 to 1997, the company produced the 2.5-liter Audi AEL 2.5 TDI diesel engine, which was fitted to just one extremely popular model—the A6 in the C4 body. This 5-cylinder diesel engine’s stronger turbine and nozzles set it apart from other models in the series.
The EA381 series also includes: CN, AAS, AAT, 1T, AEL, AHD, BJK, BJM.
Specifications
| Production years | 1994-1997 |
| Displacement, cc | 2460 |
| Fuel system | direct injection |
| Power output, hp | 140 |
| Torque output, Nm | 290 |
| Cylinder block | cast iron R5 |
| Block head | aluminum 10v |
| Cylinder bore, mm | 81 |
| Piston stroke, mm | 95.5 |
| Compression ratio | 20.5 |
| Features | SOHC, intercooler |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | yes |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 5.2 |
| Fuel type | diesel |
| Euro standards | EURO 2 |
| Fuel consumption, L/100 km (for Audi A6 1996) — city — highway — combined |
8.7 5.6 7.0 |
| Engine lifespan, km | ~450 000 |
| Weight, kg | 210 |
The engine was installed on:
- Audi A6 C4 (4A) in 1994 – 1997.
Disadvantages of the Audi AEL engine
This diesel engine is regarded as dependable, and the majority of its issues stem from aging;
The majority of owners are worried about the Bosch VE37 electronic injection pump’s issues;
The timing belt needs to be replaced once every 100,000 kilometers, and when it breaks, the valves bend; the cylinder head fears overheating, so keep a close eye on the cooling system;
Turbines, mass air flow sensors, and hydraulic lifters frequently need maintenance after 200,000 kilometers.