2004 Audi A6 Quattro Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Audi A6 Quattro
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2004 Audi A6 Quattro ProblemsCheck Engine Light Due to Vacuum Leaks, Oxygen Sensor, or Catalytic Converter Fault
Vacuum leaks, oxygen sensor failure, and catalytic converter efficiency faults can cause the Check Engine Light to illuminate.
The anti-lock brake system (ABS) control module may fail causing the ABS light to illuminate. Failed modules should be replaced to restore ABS operation.
2004 Audi A6 Quattro QuestionsMy car blew a water hose and automatically shut down. now it won't start. (1 answer)
While driving the low oil light came on. And then the hose blew. The car shut down and after filling it with oil and repairing the hose, now the car won't start. Not even turn over. The EPC light is on as well.
When driving and take sharp turn rear drivers side sways
My car was diagnosed with a bad brake switch the car drive anyway and then had an accident not related at all.. but the damage was to the under carriage oil pan area and since then my shifter will not move from park with battery connected with battery remove the shifter works fine So I think the ...