parking brake

Hi does anybody know what could be wrong with the electronic parking brake on a 2012 mercedes b class. It's come up with a warning saying parking brake is malfunctioning. The yellow and red parking lights are lit. I've jacked the rear up and the handbrake is only working at one side. No power...

Hi chaps, Ive just got my W221 320 CDI 1 week ago and whenever I press the handbrake button, I hear an almighty racket from the back of the car (like gears grinding or slipping - and a horrible smell, which I reckon is carbon burning on the motor bushes) and it gives me an electronic handbrake...

My ABS and brake warning lighs are constantly on, and also the parking brake light does not illuminate when the parking brake is applied. Reading through the various threads where similar issues have been discussed the problem could be either the parking brake switch, brake pedal switch, OVP...