1990 560sel Trany Noise
 

Before I pull it may be some one can give me an idea of what might be wrong. The cars in great shape, 180K miles. Changed fluid each 50K.

Felt a shudder starting from a curb up a hill. started getting a whine like an impeller rubbing. Got damn loud thru 3rd into forth. Sounded like maybe a water pump squeal. As I nursed it home, the wine dissipated and it runs fine in forth. Reverse pulses a bit at idle. The whine is soft but I know its there.

Pulled the pan and valve body. Not too bad, the filter has a 100K on it and it is a little crusty on the intake side. Found one shift spring broken, the biggest, 3 to 4 shift piston. I know thats not the problem.

That's as far as I've gone on one of these. Is it straight forward to pull it apart and rebuild??

Gary:confused:

Sure, it is a piece of cake. Did you replace that crusty filter?

Sounds like the B3 clutches are failing, but it could just be a packed filter causing the whine.

Thanks Steveblf,

I thought just replacing the filter might be too optimistic. But it did act as if it was starved for fluid. If you think that will do it, I'll find a new filter and refill it. That would be a pleasant surprise.

If I have to rebuild it, how much should I expect to pay for parts?
Where to get them?

Thanks,
Gary

The whining could be the filter but the other symtems will not be helped by the filter.

Fastlane can probably source all the parts. Use a genuine MB gasket set. We use genuine MB for all the parts but fastlane can probably offer that alternative.

Wow, fingers crossed. Changed the filter and fluid. I think we've got it. The pulsing in reverse went away. Shifts are all good.

Will drive it about 50 miles tomorrow.

Thanks.:D