2003 Audi A4 Quattro Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Audi A4 Quattro

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2003 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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2003 Audi A4 Quattro Questions

I have a check engine light prompted by a P0501 (1 answer)

My speedometer is not working (weeks ago, it was on and off but now it's just off all the time. I replaced the Vehicle Speed Sensor with no luck, as well as F/L ABS Sensor. Any suggestions on what the next move should be?

I put oil in my car,the cap under hood,shut hood w/ cap stuck btwn. Can't open (1 answer)

How much is the oil stick for my car.. (1 answer)

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2003 Audi A4 Quattro Reviews

all 4 wheels just locked up on me while driving down interstate?
My Audi A4 is excellent. It has 92.000 miles and continues in perfect condition. I drove it in Italy for a year and a half (miles a day - 110 - speed 110 to 120 miles per hour. I love my Audi A4 Quattro- is excellent.
I bought my 2003 A4 Audi at 95,000 miles. I bought it with a leak in the rear flange and it needed a new clutch. These 2 repairs together cost $2k My Audi now has 105,000 miles on it and I have not had any other problems with it. I drive it like a grandma shifting between 2500 and 3500 rpms depending on the roads speed limit and weather conditions. I test the acceleration about every 500 miles....

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