My 1989 190E 2.6L gas/auto has a problem.

If you pull the parking brake lever all the way up, the wheels still let the car roll back in Neutral. There is resistance in the handle, so I dont think the cable is broken, seems to me its out of adjustment.

I took off the rear wheels, but didnt see anyway to adjust the brake. I also tried to get the rotor off. Is it part of the hub? Do I need to take out the wheel bearings?

After I get the hub off, what do I adjust then?

Thanks.

The parking brake shoes have an adjustment THRU a lug bolt hole.

Also the main cable can be adjusted IF the shoe adjustment doesn't hold.

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Resurrecting an old thread here...
I just adjusted (at the wheels) on my '87. Seemed simple enough - look through one of the lug bolt holes at the 11 o'clock position, spin the adjuster until the shoes start to drag, then back off just enough to let the wheel turn without resistance. When I was done, however, I can still move 10 clicks with the foot pedal and get no significant resistance (I can put the transmission in gear and it will idle away with the brake at the full 10 clicks). Should my next step be a full inspection of the cable system, or is there somewhere simpler to check first? It does make some difference at the wheels, I could feel it bind a bit when setting the brake and turning the wheel by hand with it off the ground, but that's about it.

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1987 Mercedes 300D

under the car about 2/3 of the way back you will find the single cable coming from the foot pedal which splits into two and there is a threaded rod to tighten the assembly.this should fix your brakes. david poole dallas tx.