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R129SL
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28 Posts
Discussion Starter #1
During reverse the transmission takes a few seconds to engage, it produces an abrupt rough engagement when cold, then during normal temperature the reverse slips for a few seconds before it engages gear.

The problem started when the car had 44,000 miles. It currently has 93,000. All forward gears works without any problems. My mechanic told me that the transmission would go south within two months; that was two year ago, and the transmission has worked exemplary except for the reverse gear timing.

Should I rebuild the transmission, and if so, has any one has recommendation between a rebuilt transmission work performed, or purchase the sealed rebuilt transmission offered by Mercedes-Benz with 2 year warranty.
 

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00 S500,99 4wgn,87TD
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579 Posts
If forwards are ok. and fluid looks like new,a rebuild is probably unnecessary. I would ho...

If forwards are ok. and fluid looks like new,a rebuild is probably unnecessary. I would however have the unit, torque converter and front pump assembly removed. It sounds like the two lip seals on the reverse piston are bad. If so, remember to change the pump "o" ring because it's probably leaking. Don't forget a new filter. It should be changed @ 30k miles. Ps.,have the rear main and the rear main cover checked for leaks while there......
 

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300SL 1991
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14 Posts
Hi,

Read the two posts bellow. Might help. Do you have some transmission leakage? It can really be that. The fluid must be at the correct level.

My car has indeed a little leakage on one trasmission joint and it can really be the source of the problem.

Check these out:
http://www.benzworld.org/forums/forums/thread-view.asp?tid=1215629&posts=7

http://www.benzworld.org/forums/forums/thread-view.asp?tid=878986&posts=2

Carlos
 
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