My brake lights are all on as if I am pressing on the brake pedal whenever the car is on. I set and reset the parking brake so I don't think the problem is there. Is the brake pedal position switch adjustable? Although the switch is near the brake pedal, it looks as though the position switch might be fluid actuated instead of just a mechanical switch stuck on the pedal arm itself.

 

what kind of fluid?

 

The switch itself looked like it had 4 wires coming out of it and it attaches to the part that your pedal plunges into (I assume this is called "the hydraulic unit"). But then again, I could be wrong ... it was very difficult for me to even fit my head down there close enough to see. Large cars are much more pleasant to work on.

 

i’m fairly certain the brake switch is NOT hydraulic. its a contact closure that turn on the brake lights; purely electrical. the ABS/ESP/TC may use the brake switch for information (explaining the additional wires), but that too would be electrical.

try and check the switch to see if its sticking, or just not adjusted properly to be activated correctly.

 

Check page 314 onwards in the manual, there is a whole fault finding procedure for the brake light circuit. I would check that the brake light relay isn't stuck closed too. Here's the schematic:

 

What I meant by hydraulic, is that (unlike the switch on our clutch pedal) it plugs into the main ABS hydraulic unit vs being open/closed by the pedal arm itself.

 

Apparently my stop lamp switch was bent. Bending everything back in place solved the problem...

 

Glad you solved it.