PeachParts Mercedes-Benz Forum - View Single Post - Lost 2,3,4th gears in 300D... All of a sudden

JamesDean · #6 08-05-2012, 10:05 AM

Quote:

Originally Posted by vstech

there are a few things that can cause this... however, the problem may be internal, requiring a rebuild.

first, check your bowden cable. verify it's not stuck fully extended...
next, unplug the kick down switch under your accelerator pedal.
my 87TD will not shift out of first unless I let up off the pedal. if I hold it to the floor, it'll max out the RPM's and not shift. lift my foot, and it shifts normally. the bowden cable does this, and mine needs a tweek, but I don't drive with the pedal floored much, so it's not an issue for me, if your cable is broken or jammed fully extended, it would behave the same way.
good luck!
low fluid, and constant low fluid is a bad sign though. it indicates a leak that could EASILY damaged a drum/band/clutch preventing shifts.

Cable verified to be operating normally.

Kickdown switch disconnected.

I drove the car, up the street, no up shifting. However, I did notice that if I pull the gear selector down to "2" there is what feels like a downshift. But when I take the selector back up to 3/D I dont feel an upshift. It feel similar to my 420 when you take the selector all the way down and then click it over to the right (I forget what its actually called).

I'm not sure on the fluid. I have never been able to successfully read AT dipsticks. It did just come back from the shop middle of last week and I think they would have told me if it was low on fluid..

I was going to attempt to pull the B2 piston today and see if that is it.. Any one else think that it might be?