Audi A4 Quattro Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Audi A4 Quattro

Vacuum leaks, oxygen sensor failure, and catalytic converter efficiency faults can cause the Check Engine Light to illuminate.

The digital display portion of the instrument cluster may fail. Our technicians tell us the entire instrument cluster will need to be replaced to correct this concern.

A problem with the torque converter can cause the Check Engine Light to illuminate.

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I changed the timing belt, heads, and head gaskets. The car starts up and runs, but now its acting like the transmission is slipping. I've never had any problems with the transmission in the past, and no fluid leaked while working on my car.

it was in limp mode, only shifted manually then one day wont go into any gear. have 2 codes p0717 and po 722. speed sensor and transmission sensor. could it just be one of these sensors? I was told tcm is bad if it wont shift. I cant even figure out how to check the fluid. any ideas?

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I have been driving my 2001 A4 Quattro Avant V6 2.8 for about 4 or 5 months. Overall I think it is a good vehicle. It is my first Audi, and I bought it used for a good price because it is older and higher mileage. So basically, I am speaking from the perspective of an aging Audi, for potential used car buyers. Body and interior have several luxury features including an excellent sound system, ...

I just bought my 2001 A4 Audi Quattro and I am content with the car but th eonly thing that is troubling me is the Heater. Only cold air seems to come out of the vents even with the car being driven and started properly. It is very cold at the moment and I am suffering my having to dress extra layers of clothes just to drive my car.

I love this car. It's the perfect size for city driving (parallel parking is a breeze) and the 4WD takes you to Tahoe in most any conditions. Living in San Francisco, the Quattro is a must - it gives me an extra sense of security on those many rainy days. I opted for the 3.2, 6 cylinder option which gets me on the freeway (and up mountain roads) in no time. I have developed an addiction to ...

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