Parking brake - E320 CDI estate

[Chesterchaucer]

The parking brake (see pic) on my 2003 E320 CDI Auto estate (W210) has suddenly stopped working.


When I push down the foot brake pedal moves but it doesn't lock in place. What could be the issue, any ideas would be appreciated. Thank you

 

[onefortheroad]

Probably an issue in the mechanism above and behind the foot pedal.

 

[Chesterchaucer]

Thanks for the reply. The pedal goes down fine and pulls the two cables back - but it will not click in and hold like it used to. .

 

[onefortheroad]

Thanks for the reply. The pedal goes down fine and pulls the two cables back - but it will not click in and hold like it used to. .

Yes, I believe the ratchet mechanism is on the foot pedal assembly. It's mentioned elsewhere on these forums with pictures.

 

[Chesterchaucer]

Thanks,
You're right, it's the small spring behind the brake pedal that’s broken (see pic), but accessing it is a challenge unless you're a contortionist.
Does anyone know the part number or where I can get a replacement spring?

 

[onefortheroad]

Thanks,
You're right, it's the small spring behind the brake pedal that’s broken (see pic), but accessing it is a challenge unless you're a contortionist.
Does anyone know the part number or where I can get a replacement spring?

If you enter your vin on the partsouq website mercedes section , you'll be able to view schematic drawings with part numbers. Hopefully the spring will be separate, if not you'll need a spring shop like eBay etc.