20 Most Recent 2003 Audi A4 Cabriolet - Page 5 Questions & Answers

it's a coil- these are commonly going out on audi's...it happend to me. it's like you are running on 2 cylinders instead of 4- you need to get it replaced- it's about 75 bucks.

Check the condition of the following first:1) Spark plugs, leads and coil(s)2) Air filter3) Fuel filter and pump.

Replace the engines thermostat would be the first thing I would try.

You will need to bleed all four corners, starting at the right rear, then left rear, then right front, then left front. Your bleed procedure always goes from the wheel farthest from the master cylinder, to the closest. By bleeding only the rear brakes, you've gotten air out back there, but not necessarily any air that might have moved farther forward. Bleed your rears again, and then move forward to bleed the fronts, and see if that helps.

If you can raise and lower the window by hand, then it's the regulator. 9 times out of 10 it will be the regulator. I have a 2003 A4 and both rear window regulators are broken.

HelloThe engine and automatic transmission in this vehicles drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM

I've just replaced mine so here goes. Undo the top two bolts first. Then remove the two screws above the radiator holding the air intake ducting in place and gently pull out the air intake pipe and move to the back of the engine, exposing the rear of the lightbulb housing. To the rear of the lightbulb housing is a bolt. You should only need to loosen the bolt and this will allow the lightbulb unit to be pulled forward clear of the car. On the back of the housing you will find a cover, remove the clip retaining the cover and fold it away, exposing the rear of the light bulb.

this could be a problem with the convenience control box aparently they suffer from water in and arround the area of the convenience control box First thing to do is lift the carpet and underlay in the passenger front footwell. then remove the plastic trims to make it easier.Locate a black plastic box and open it up to inspect the c/d/lock window control module.You may find it has water in it along with the wiring that runs along the floor to the n/s/f door pillar.Worth a look i suppose...hope that helps

Diesels do not require tune ups.

MANY cars are DESIGNED to do that. What you are describing is exactly WHY I always roll a window down when I bring a vehicle into the shop to work on it (so I do not end up with keys locked in the car). Check your Owner's Manual.