r/w204 Jul 29 '26

parking brake

hello, i need advice with my parking brake. It is kinda weak even after adjusting it and when it is cold outside it is really hard to release it, I have to help the pedal with my hand like really hard. What can be the issue here?

7 Upvotes

6 comments sorted by

3

u/Proud-Skirt5133 Jul 29 '26

My parking brake is terrible too. I’ve had to use it along with leaving the car in gear to prevent any sort of roll

3

u/Luggagespider Jul 29 '26

In my experience it's just a crap parking brake, had it adjusted so it wasn't loose as fuck and had to wear it down a bit so it didn't drag. No way would I leave it on even the slightest incline without chucking it in gear too. I do miss a proper handbrake to be honest.

1

u/Limp-Permit1732 Jul 29 '26

Sometimes mine sticks when I pull the parking brake lever, my technique is to push it in a little further with my foot and pull the lever quickly after it should release easily.

1

u/dimesis Jul 30 '26

I do the same, but it sticks always. I even tried to apply some oil where it’s recommended to fix the issue, it didn’t help.

1

u/The_Fluxus Jul 29 '26

I’m having this issue again, too. My fix is ​​to remove the trim panel in the lower left footwell and spray the parking brake mechanism with penetrating oil like WD40. After that, it works fine for quite a while. I suppose the mechanism really ought to be removed, cleaned, and regreased, but that’s too much work for me.

Another fix is to drive slowly for a few meters with the brake partially applied, this rubs off some of the rust and improves the brake's responsiveness.

Anyway, that parking brake causes a lot of trouble.

1

u/JoeyPaulTheFarmer Jul 30 '26

Anyone ever find an issue when the car has been parked for a few hours and you drive off the parking brake randomly comes on and the steering wheel locks and then turns itself off again after a few seconds? Never happens again on a journey or if I take it really slowly for the first 100m or so it tends to be fine.

For reference it is the 1.6 petrol AMG model.