Clutch seal diagnosis. - PeachParts Mercedes-Benz Forum

skalie · #1 05-09-2002, 02:30 AM

A while ago the clutch on my 220D went, well by that I mean it felt like the hydraulics had sprung a leak.

I checked the fluid, it was full, and then pumped a bit and it was back to normal.

I though that maybe it was an air lock due to the hole in the cap for the clutch/ brake fluid cap being clogged.

I also thought I had got away with easiest clutch repair in history.

Yesterday I went on a long drive and had the same problem, although now it is getting worse and I had to remove the cap and pump after say an hours driving without changing gear.

So it looks like a seal is on the way out if not completely gone.

The reason I am posting this before climbing under the car is that maybe someone recognises the symptoms and can point me to exactly which seal it would be (slave/ master cylinder).

*The fluid stays full, so the leak must be replacing lost fluid with air.

*The brakes are not effected (same reservoir).

*The weird thing with the cap, could it indeed be an air lock?

I'm guessing it's one (of two?) of the seals of the master cylinder.

Any ideas?

ctaylor738 · #2 05-09-2002, 01:06 PM

They are cheap - do 'em both while you're under there, but you should be able to visually inspect the master from inside the car. You might want to do a search on bleeding the system. It is a wierd procedure.

skalie · #3 05-09-2002, 01:13 PM

Due to the age of my vehicles I have been renewing seals since the cows came home.

Normally they just go, you see a wet patch and the fluid is low.

I agree, bleeding the system is a weird procedure.