that_tg

Is this the basic switch under dash that tells the brake lights to come on when you press the brake?
I hope it is. I have the new switch and it looks easy to replace.




Address 02: Auto Trans Labels: 01L-927-156.lbl
Part No: 4D0 927 156 K
Component: AG5 01L 4.2l4V RDW D29
Coding: 00011
Shop #: WSC 02305
VCID: 31690BC4FBC0DDA9D11-5140

1 Fault Found:
17087 - Brake Switch (F)
P0703 - 35-00 - Electrical Malfunction

silverd2

That's it...cheap simple fix. When failing, it can wreak havoc...talks to the ABS, TCM and ECM.

that_tg

Can not wait to get home and fix this. Thanks!!!

richard-tx

If you press the brake pedal one time before scanning you will likely not get a code.

silverd2

Correct, IF the switch is not bad. The car actually sets this code as a start-up check...it is then immediately erased when you step on the brake...if the switch is bad (or fails during operation) the code remains.

But, this is a common failure item on lots of VW/Audi's ...I've replaced it on 2 out of 3 of my cars, out of necessity...brake lights sometimes staying on after releasing, plus the games it plays with ESP, etc..

that_tg

I see two switches here. Replacing the one that I have the part for but what is the other switch? What is it for and is that the one that is bad?












Why is that air duck in the foot well such a pain! It is not German engineering, that is "oh **** we forgot to get the air from here to here. Stick this thing here. It should fit..."

silverd2

The other unit is a vacuum switch for cruise control....you have the right part for that code.