The 2.3-liter Audi AAR engine was assembled at the factories of the German concern from 1990 to 1996 and was installed on the model under the index 100 in C3 – C4 bodies and the very first generation A6.
|Power output, hp||133|
|Torque output, Nm||186|
|Cylinder block||cast iron R5|
|Block head||aluminum 10v|
|Cylinder bore, mm||82.5|
|Piston stroke, mm||86.4|
|Recommended engine oil||5W-40|
|Engine oil capacity, liter||4.5|
|Euro standards||EURO 2|
|Fuel consumption, L/100 km (for Audi A6 1995)
|Engine lifespan, km||~350 000|
The engine was installed on:
- Audi 100 C3 (44) in 1990 – 1991; 100 C4 (4A) in 1990 – 1994;
- Audi A6 C4 (4A) in 1994 – 1996.
Disadvantages of the Audi AAR engine
- The main engine problems are related to the vagaries of the KE-III-Jetronic injection system;
- The cause of unstable engine operation is usually air leakage or contamination of the idle valve;
- The fuel pump lasts for a relatively short time and the nozzles clog rather quickly;
- Ignition system components often fail: slider or distributor cover;
- At high mileage, hydraulic lifters often wear out and begin to knock.