2002 Audi A4: misfire or rough idle

6 of the 181 complaints about the 2002 Audi A4 describe misfire or rough idle.

owner complaints: 6
of this car's complaints: 3%
typical mileage: 9,264
recalls: 0

Is there a fix? 49 service bulletins cover this area of the car. See below

Misfire or rough idle by model year

2021
1
2017
1
2013
1
2011
1
2010
3
2009
3
2008
1
2007
2
2006
1
2005
1
2004
3
2003
2
2002
6
1999
1

What owners say

Filed Mar 16, 2003 · Electrical, Engine · 26,400 miles · TX

1/10/2003--took the car in to have it checked because of a rough idle and trouble starting. The dealer found no initial problems. 2/5/2003--received notice in the mail from audi concerning the possibility of bad coil packs on 2002 a4's. 2/7/2003--the car stalled on us at night, in the rain, in the middle of a busy intersection. It took me at least a minute to get it restarted--that may not sound like much, but you should try turning off your car in the middle of an intersection and wait 60 seconds before restarting & taking off. See how may people start honking and/or almost hit you before you move.... 2/8-2/11/03--the dealer checks the car over. They say the coil packs are fine, but the mass air flow sensor was bad, so they replaced it. I don't believe they have fixed the problem, since the car still idles rough, and still has trouble starting. Luckily, it hasn't died on us again (yet).

Filed Feb 3, 2003 · Electrical · 29,000 miles · TX

Engine coil?? My a4 has now been towed four times do to misfiring. They have replaced the engine coil now four times but last saurday was the one that broke the camels back. When your on the toll in rush hour at 65 miles an hour with no shoulder its usually a bad thing when your car stalls out and begins to shake violently.out at 10,000-18,000-20,000-and now it is in a shop why I drive a rented accord(it gets better they tell me that the part is on back order-maybe in a couple days? Did somebody say lemon-law.

Filed Feb 2, 2003 · Electrical, Fuel system · 4,000 miles · FL

The vehicle has been in the shop 8 times for misfiring of the fuel injectors. Not one attempt has been successful at solving the problem. On one occasion, the car accelerated by itself. On another, the engine continued to run after the key was removed from the car. On another, the car reprogrammed the keys and would not allow me to start the car. On two occasions the car's engine stopped while putting the car into reverse. Audi in miami, fl and in alexandria, va have failed to find the cause of these problems and have "never heard" of such complaints. Despite these problems, audi consumer relations refuses to replace the car and therefore, I am forced to file under florida lemon law. This is a disgrace on behalf of audi and because of these problems and audi on the corporate level, I would never buy another audi nor recommend it to anybody else.

Filed Jan 16, 2003 · Electrical · 4,000 miles · PA

While driving the engine misfired and decelerated. Consumer could not get car to travel over 40mph. Dealer diagnosed that the ignition coil failed. Informed consumer that manufacturer is aware of defect but will not replace component until fails. Ph

Filed Jan 7, 2003 · Suspension · MA

Consumer took vehicle to dealer for a rough idle, hesitating to pull off in traffic. Took to dealer, dealer states all four cylinder coils are defected and dealer will only replace as they fail. Please provide any further information. Ts

Filed Dec 21, 2002 · Electrical · 9,264 miles · CA

Car engine was misfiring while check engine light flashed. There was a severe lack of power. Dealer diagnosed problem to be faulty ignition coil pack.