2002 Audi A4 Quattro Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2002 Audi A4 Quattro

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2002 Audi A4 Quattro Problems

Check 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.

Check Engine Light Due to Faulty Torque Converter

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

Inspection of Water Pump and Timing Belt

The water pump may fail resulting in engine overheating and possible timing belt damage. Overheating and/or timing belt failure can result in very expensive engine repairs. As a precaution, it is recommended to inspect the timing belt and water pump at regular intervals.

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2002 Audi A4 Quattro Questions

Fault code P0420 Common Fix- replace oxygen sensor (1 answer)

Fault code P0420 is common in Audi's. And it refers to an inefficient catalytic converter. However, I have found that the fix for this fault code is seldom the catalyst itself but rather replacing the oxygen sensor.
I was hoping that someone could expand a bit on what they have read or seen ...

transmission gear box and water pump (1 answer)

a mechanic said we could have problems with the transmission and the water pump it seems some of gears are not working correctly and advise us not to drive the car but when we pick up the car from him it seems ok so we are confused can you advise us what to do and if those are the problems ho...

What is the cause of this misfiring? (1 answer)

Number 1 cylinder not getting any spark when car accelerates. It's a brand new coil that I bought from dealer. When idles, everything works fine. As soon as I start driving, there is misfiring on that # 1 cylinder again.
I'm saying it because I did the test on all the cylinders and only ...

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2002 Audi A4 Quattro Reviews

Complete piece of crap. Bought the car brand new and it had electrical problems when it came off the lot. Spent the first 6 weeks we owned it (literally) at the dealership trying to fix it. Has had the radio replaced 3 times. Developed an oil leak at 40,000 miles. Torque converter and catalytic converter needed replacing at 70K miles. And NOTHING on this car is cheap to fix. Latest issue cost $...
had my car since brand new on january 2002. 2002/2003/2004 were covered under warranty. My repair bills for 2005- $2592.00, 2006- $3906.00, 2007 $2660.00, 2008 $1557.00, 2009 $2407.00 TOTAL $ 13106.00/ 246492 kms = 5.3 cents per KM This is double the recommended average br CAA Canada. Also my reapirs woudl have been much higher if I let AUDI dealer do this.

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