Vacuum leaks, oxygen sensor failure, and catalytic converter efficiency faults can cause the Check Engine Light to illuminate.
Resources for the Repair and Maintenance of your 2005 Audi A4 Quattro
2005 Audi A4 Quattro
2005 Audi A4 Quattro Problems
A problem with the torque converter can cause the Check Engine Light to illuminate.
Erratic turn signal operation can be a result of a failing turn signal flasher relay which will require replacement.
Our technicians recommend having the constant velocity (CV) boots and CV joints inspected at each service. Servicing torn CV boots early can prevent the need to replace the CV half shaft or CV joint.
A fluid leak may develop from the propeller shaft seal on the rear of the transmission. Our technicians tell us that replacing the seal will commonly correct this concern.
2005 Audi A4 Quattro Questions and Answers
I have a passanger air bag light off.
How much will cost me to fix it.
I have an Audi A4/05/ 3.2 Quattro
What could cause the engine light is on?
Could not find out what making the noise while the car is running. sounds like something loose.
The dealership said I need new brakes & rotors (front, just brakes on the rear), and boy was the quote expensive (out of the repairpal range!). When I call around to the independent shops, Is ...
The dealership checked and said everything is firing ok in the engine. But, the first 10 minutes are sluggish in the morning. Someone suggested that the Quattro needs the highest octane level of ...