The 2.5-liter Audi AEL 2.5 TDI diesel engine was produced by the company from 1994 to 1997 and was installed on only one, but very popular model: the A6 in the C4 body. This 5-cylinder diesel engine was distinguished from its counterparts in the series by a more powerful turbine and nozzles.
|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|
|Recommended engine oil||5W-40|
|Engine oil capacity, liter||5.2|
|Euro standards||EURO 2|
|Fuel consumption, L/100 km (for Audi A6 1996)
|Engine lifespan, km||~450 000|
The engine was installed on:
- Audi A6 C4 (4A) in 1994 – 1997.
Disadvantages of the Audi AEL engine
- This diesel engine is considered reliable and most of its problems are due to old age;
- Most owners are concerned about the problems associated with the Bosch VE37 electronic injection pump;
- Once every 100,000 km, an expensive replacement of the timing belt awaits you, and when it breaks, the valves bend;
- The cylinder head is afraid of overheating, carefully monitor the cooling system;
- After 200,000 km, attention is often required: turbine, mass air flow sensor and hydraulic lifters.