At 250k, your SDL is just a pup; well, maybe an adolescent. I figger at 200k it is just broken in. (pup) My first SDL was acquired at 175k and although it was rusty when I bought it, I drove it another 240k miles. The whole time it was "slow to go into reverse" The other 3 have been similar. My advice is don't worry about it. Don't fix it if it ain't broke. Unless the delay becomes noticeably longer, maybe over 5 sec, I would not worry about it. It is a great car! Drive it and enjoy it. My current rustbucket runs great at somewhere around 500K.

If you must have an "expert" check it, the only one I'd trust is Sun Valley, in Sun Valley, CA. I know of nobody in North or South America who is as good as Mark is, and he is very kind.

Ralph,'84TD via Mercedes <mailto:[email protected]>
February 11, 2017 at 6:52 AM
This is a very interesting thread as I have an '87 300SDL with about 250K miles. The tranny does seem sluggish getting into 4th., and also slow going into reverse. I have read about the reverse syndrome and have been very leery about it failing me for some time now. However, with this new information there is a glimmer of hope. I would also like some further info and details that I can use to have a qualified tranny service operator to view and do the necessary repairs. Thanks very much for any info you can forward.
ralph '87 SDL         '84 CD

On Friday, February 10, 2017 6:26 AM, archer75--- via Mercedes <[email protected]> wrote:


Bingo! I've been waiting 17 years for a definitive answer to that question!
Thanks you, Dan! Thank you!
Part number and instructions would be greatly appreciated!
Gerry
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


archer75--- via Mercedes <mailto:[email protected]>
February 10, 2017 at 5:03 AM
Bingo! I've been waiting 17 years for a definitive answer to that question!
Thanks you, Dan! Thank you!
Part number and instructions would be greatly appreciated!
Gerry
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


Dan Penoff via Mercedes <mailto:[email protected]>
February 9, 2017 at 5:08 PM
Gerry,

It’s not a B2 piston you need, it’s the K1 and K2 valves. They’re $5/each from a dealer and take all of maybe 3-4 minutes to replace when you’ve got the pan off the transmission.

I just did mine on the 300D, and it shifts like a totally different car. The 2-3 isn’t “stacked” like it used to be and the 3-4 comes in later and is smooth.

I can get you the part number if you want it along with some instructions. The parts are the same for both, which makes it even simpler.

-D




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archer75--- via Mercedes <mailto:[email protected]>
February 9, 2017 at 5:00 PM
When I bought my '83 300D in 2000 it had the reverse delay as well as a delay between 2 and 3; neither of which could be corrected by adjustment. Periodically I would decide to order a rebuilt transmission from Sun in California but never got around to it. Gradually I got used to slightly backing off the throttle when the transmission changed from 2 to 3 gear until I did it without thinking about it. By doing that the transmission shifted normally. Now, about 17 years and 130,000 miles later, I'm still driving it the same way and will never get around to installing a rebuilt transmission although I might spend a little over $100 and install a new (B-2?) piston through a plate in the side of the transmission since I've been told that would correct the problem.
It is a 722.315 transmission.
YMMV
Gerry
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MG via Mercedes <mailto:[email protected]>
February 9, 2017 at 1:26 PM
The transmission in my TD has had a delay going into reverse for over 5 years now more then 20k miles. I guess I'll have to get a rebuilt tranny right quick now.



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