I’ve got a bit of a problem with my 2005 C6 generation Audi A6, so I thought I’d post up on here to see if anyone might have experienced something similar with another VAG car.
After more than 40 minutes of driving, the car beeps and the DSC warning light and what I think is a yellow brake warning light appears on the integrated dash display. These then immediately disappear, but the DSC light on the dash itself remains illuminated. The instant this happens, the car exhibits what feels like a serious gearbox fault - the car revs freely but barely moves, it becomes difficult to change gear even with the paddles. Turning the car on and off again has no effect, leaving it to cool down for an hour totally resolves the problem, with all lights no longer illuminated on the dash.
This issue has kind of occurred before in the sense that once or twice, during a long drive, the DSC dash light would illuminate and I would feel a hesitation or shudder in the gearbox. However, after a couple of seconds, it would sort itself out, although the DSC light would stay illuminated. At the time, I put it down to a sensor issue but this recent development where I had to crawl to the next junction at 30MPH would indicate that it’s something more serious.
After researching online, I noticed a couple of people with similar problems reported changing the brake pedal switch solved the issue for them. I put the car into the dealer and mentioned this, but they called me this evening stating that they didn’t think it was anything to do with the switch as it “wasn’t showing a fault code” (personally I was surprised that their diagnostics are that precise, but I know little about such things).
They then admitted that they’re pretty sure there’s nothing wrong with the gearbox either, and that it’s likely to be some sort of connection / wiring issue, which will involve taking the entire car apart to sort out. Understandably, I’m reluctant to let them do this as I’ve already spent over half the value of the car in repairs in the month or so I’ve had it.
Do we think it’s worth changing the brake pedal switch myself to see if it fixes it, considering it’s a cheap part. Is there anything else I should be checking?
After more than 40 minutes of driving, the car beeps and the DSC warning light and what I think is a yellow brake warning light appears on the integrated dash display. These then immediately disappear, but the DSC light on the dash itself remains illuminated. The instant this happens, the car exhibits what feels like a serious gearbox fault - the car revs freely but barely moves, it becomes difficult to change gear even with the paddles. Turning the car on and off again has no effect, leaving it to cool down for an hour totally resolves the problem, with all lights no longer illuminated on the dash.
This issue has kind of occurred before in the sense that once or twice, during a long drive, the DSC dash light would illuminate and I would feel a hesitation or shudder in the gearbox. However, after a couple of seconds, it would sort itself out, although the DSC light would stay illuminated. At the time, I put it down to a sensor issue but this recent development where I had to crawl to the next junction at 30MPH would indicate that it’s something more serious.
After researching online, I noticed a couple of people with similar problems reported changing the brake pedal switch solved the issue for them. I put the car into the dealer and mentioned this, but they called me this evening stating that they didn’t think it was anything to do with the switch as it “wasn’t showing a fault code” (personally I was surprised that their diagnostics are that precise, but I know little about such things).
They then admitted that they’re pretty sure there’s nothing wrong with the gearbox either, and that it’s likely to be some sort of connection / wiring issue, which will involve taking the entire car apart to sort out. Understandably, I’m reluctant to let them do this as I’ve already spent over half the value of the car in repairs in the month or so I’ve had it.
Do we think it’s worth changing the brake pedal switch myself to see if it fixes it, considering it’s a cheap part. Is there anything else I should be checking?
