Audi S4 Problem Report
Audi S4 Check Engine Light Due to Vacuum Leaks, Oxygen Sensor, or Catalytic Converter Fault
My check engine light hardly ever goes off. The problem from day one has been the oxygen sensors. I have had them replaced twice within the last three years and the problem has not gone away. - Visitor
does anyone no where the engine mount solenoid valve is & what it does & should it be repaired immediatly
...e thermostat may erratically stick open or closed. The can result in illumination of the Check Engine Light and/or engine overheating.
A problem with the torque converter can cause the Check Engine Light to illuminate.
2000 audi s4 ? i started my car when it was raining, but had already driven it beforehand in th...