My 1998 Audi A6 power windows not working

Unrelated problems. Check the transmission fluid. Check codes.

Remove the inner door panel to see the issue

Most likely a broken window regulator,has to be
replaced

Could be a bad switch,you have to be more discriptive

Google it - Check this LINK. If your horn or other steering wheel controls do not work, it's likely the clockspring - the device that transmits the inputs from the steering wheel into the wiring harness under the dash. Pray it's not, otherwise your Audi tech will be buying himself a new S4.

Td

That fuse is integrated into the brake light system. the switch is located under the dash attached to the brake pedal.

The serpentine belt diagram for 1998 Audi A6 Quattro 2.8 L V6 engine:


CS = Crankshaft
F = Fan pulley
Gen = Alternator
T = Tensioner
AC = Air Conditioning
PAS = Power Assisted Steering

Under bonnet on the right side of the car face to windscreen you will find the fuse box / relay plate - engine bay. Here is placed the Data Link Connector (DLC) for Audi A6 Quattro 1997.

Well if your talking about your alternator, than it's 120 which it will say on the alternator. but if your talking about a component in the dash board than it depends on the component but most-likely 20 amps.

Any comparable car should work. Your car is a 98, so you would have to stick with Audi/VW cars that have the 30v V6 (98-01.5). The 97 and earlier years used an older 12v V6 and those aren't compatible. It's unlikely that the 1.8T models would work either. You'd have to look for A4, A6, and Passat cars in the model range I mentioned, and you may find that if you have a quattro model, your replacement would have to come from a quattro (Audi) or 4motion (VW) car as well. Try to find a donor car with your same drivetrain (30v V6, auto/stick - whichever you have, and 2wd/4wd, whichever you have).

To tell at a glance which engine is which, the 30v has black covers on the valve covers that say "5V" (for five valves per cylinder). The older 12v cars I believe actually say "12v" on them.

It's the brake pedal switch. There is a switch down on the pedal arm that closes when you press the pedal down, and sends a sensing voltage to the controller, telling it the brakes are applied. This allows the transmission lock to disengage so you can shift out of Park. When that switch fails, the lock won't disengage. You need to replace that switch and you'll be fixed.

is it fitted correctly? If it is not fitted correctly it will do this. Have you checked the relay?