Four problems related to ignition have been reported for the 2003 Audi A4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Audi A4 based on all problems reported for the 2003 A4.
Audi A4 6-cyl 3. 0l avant 2003 model year. Coil pack #2 failed on Sep 28th 2007. Audi has had a recall for the 2003 A4 4-cyl 1. 8l engines but not for the 3. 0l engines. The vehicle only has 37k miles on the odometer. It's likely that there will be more cp failures, until I have all of them replaced. There should have been a recall for the 3. 0l engine as well.
I purchased this car on 1/24/07 with 22,422 miles on it. Six days later the engine light was flashing, it was shaking unbelievable, would not run properly, go over 20 mph. I returned it to the dealership I purchased it from, they replaced a coil pack. Within a short time, on February 14, 2007, the engine light had come back on. At that point I brought it to the nearest Audi dealer. It needed a turbo bypass valve replaced. Friday, March 9, 2007 the engine light had come on again. I brought it to the Audi dealer once again. They reset the engine codes and say it has had a random misfire. Today, March 11, 2007 the engine light is flashing again, and will not drive over 20 mph. I am having it towed to the dealer in the morning, today is Sunday and they are not open for business. I drive about 1,000 miles a week and I need my car operational. I worry each time I drive this car, I have to return it to the dealer almost weekly. It has low miles. Carfax states this automobile has a clean history and is under factory warranty until 6/07. The booklet obtained with the purchase of this car states the 4 yr/50,000 mi warranty became effective 6/03 which would leave the remainder of the fully transferable factory warranty valid until 6/07. The Audi dealership will not honor the warranty, saying that it expired 1/31/07. The car now has 29,xxx miles on it and I have had nothing but trouble with it. The sunroof motor also needs to be replaced, as I am told by the dealer, who then told me the motor is $501.
On November 14th my A4 1. 8 stalled, was towed to the dealer, a coil was replaced. . . When I drove the car home it would thump and jerk up around 60 mph. I returned it to the dealer who stated that it could again be another coil but were not permitted to replace all the coils the day before because manufacturer wouldn't pay for anything more than the faulty coil. . . Even though they figured more might fail. . . Well, it turns out it was the "throttle" - they reset it and I picked up the car and started driving home when it thumped and jerked again. . . Turned around and returned it to the dealer. . . This all happened on the 15th. . . It is now the 18th and after working with their engineers, they fear they may now need to replace the entire transmission. . . I am just glad that I have a loaner car and that I have 5k more miles on my warranty. . . I think I am going to by the extended since this is 3 huge problems in 5 weeks time!.
On October 11th my fuel filter and pump were replaced and a road test was completed. . . On November 14th (5 weeks later) my A4 began to shake and the mil came on. I pulled vehicle to side of the road and had it towed to dealer. Dealer informed me that ingnition coil failed and had started to affect the spark plugs and was only running on 3 cylinders as a result. They replaced the coil and completed a road test - however they had completed a road test 5 weeks ago too - so I am feeling lest confident when I drive. . . Fearful of driving in less familiar locations or in any lane except the slow lane in case I need to pull over.