Replaced brake light switch on 2004 Audi A6. Still no brake lights and ABS ESP still on

SOURCE: ABS, ESP, Level warning lights (2004 Allroad TDI)

I had the brake light switch replaced by a local dealer. Cost was $140 and it fixed the problem. Have driven the car for two weeks since and no lights and all systems normal.

SOURCE: I have a 03 Audi A6 Quattro with the ESP & ABS light on

It's probably your brake check switch going bad, it's under the driver's side dash above the brake pedal. I had the same problem and eventually my cruise control and brake lights stopped working when it failed completely. This is also a redesigned part that you can get from the dealer for about $8, which to me indicates they new the part caused problems and failed to notify owners. Try that before Audit tries telling you wires are faulty.

SOURCE: Replace brake pad light on, how do you reset it?

Did you change the sensors when you changed the pads?

SOURCE: abs and brake light is flashing on my 99 audi a6

If you need to repair the brake module, there is a fantastic article, complete with photos, at http://www.audiworld.com/tech/elec116.shtml

I followed this example for my '98 and now it works perfectly. I found a shop on eBay to rebuild my module (lifetime warranty) for under $200. It took me about 1 hour to pull it off and about 45 min to put it back on with minimum shop tools

SOURCE: Audi A6 quattro 1999 the ABS light is on and the

That indicates that the ABS controller is having issues. The ABS controller is the metal box along the driver's side of the engine, just in front of the coolant overflow tank. The controller is the black box on top of it with the harness attached. You can buy a new one (expensive) or send yours to www.modulemaster.com for a warrantied rebuild. They have a great reputation on the Audi forums I frequent, and you can drive the car while it's gone (you just won't have functioning ABS while it's gone).