W116, Body and Interior Specific Aid

1983 300SD vacuum locks but not unlock

I have gone through the vacuum lock lines and tested each door to make sure I dont have a leake. The doors will all lock when the drivers door is pushed down from inside or with the key. But will not unlock the other 3 doors when the drivers door is opened. The trunk lock holds vacuum but does not unlock other than with the key. When I push the drivers door down the motor in the trunk comes on and goes off. When the drivers door is opened (lock pulled up) is the motor in the trunk to come on and push air to the other 3 doors to unlock them?
Thanks for your help Jim Hunt.

Chassis Model Number

W126

Forums

Body and Interior Specific Aid

1984 300D aftermarket OE direct fit rotors

Thanks for answering my last question and all the other info I have gotten through MercedesSource by way of instructions and guides. I have new rotors that I aquired and the part number indicates that they go to the front of my 1984 300D. My question is that the old rotors (probably the originals)are bolted to the front bearing hub as you have confirmed. These new aftermarket rotors have no threads in the hub mating surface to accept the 5 mounting bolts that hold the old ones on. What gives? I have looked at other replacement brands also and see no way of fastening them to the hub.

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

1984 300D brake rotor removal

When removing a brake rotor, (disc), is it fastened to the hub with any clips or bolts or is it sandwiched between the wheel and hub then secured by the lug bolts? There is 25 years of dirt/rust holding it in place also so I didn't expect it to exactly fall off but I was wondering if there are any fasteners I should be aware of.
As always thanks for any info that is offered.
Great resource.......Mike G.

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

1979 300SD automatic trans vacuum modulator valve ??

Hello

I sold my fourth and most recent Mercedes (1981 240D) in March. Couldn't stay away long, and am planning on looking at a 1979 300SD this weekend. I've had four diesels, (1982 240D, 1985 300SD, 1985 300D, 1981 240D) all automatic, since 1996.

The seller tells me that the transmission "sticks in second". Sounds to me like it might be a modulator valve issue, but since I can't even find a parts listing anywhere for a modulator valve for that car, I'm now wondering if that car came equipped with one at all.

Chassis Model Number

W116

Forums

Transmission / Suspension Specific Aid

Pages