transmission for 1997 e320 - Mercedes-Benz Forum
 
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#1 (permalink) Old 09-20-2011, 03:43 AM
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transmission for 1997 e320

I recently bought a 1997 e320 and had problems with my transmission yesterday. It thumped going back to second gear.
The transmission specialist told me that the models between 1996 to 2000 experienced seal failure but were rectified in models after 2000. I have been advised to have the transmission fully overhauled at a cost of $4,000. The car has only done 120k. Does this sound right and can anyone advise me.
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#2 (permalink) Old 09-20-2011, 05:41 AM
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I would get a second opinion from a shop that has the appropriate diagnostic software to read the transmission module for faults. If they, the shop you call, can't do that HANG UP!

That information will help in identifying what he problem is.

It sure as hell ain't seals or fluid or filter or connector plug leak.
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#3 (permalink) Old 09-20-2011, 06:14 AM
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The early ones had a problem with one of the main bearings -- not sure if a seal was involved. The only fix was to replace the part and this used to involve upgrading a few components since the original bearing was not sold.

This may have changed in that a replacement may now be available -- one thing -- if this is the problem it is best to get it looked into quickly as the transmission can be fixed without a full rebuild. Once the bearing totally fails it will do more damage.

............ a full rebuild is different things for different people -- and it should not cost 4k
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#4 (permalink) Old 09-20-2011, 06:26 AM
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your transmission had one harsh shift and you automatically assume you are having problems? was it in the morning when vehicle was cold?
has the tranny fluid/filter ever been changed during the 120k miles of its life? if not then now is a good place to start. until you start having "real" tranny problems, i wouldn't worry much about it.
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#5 (permalink) Old 09-20-2011, 08:36 AM
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A good sign of transmission problems are hesitations.

If your vehicle takes more than a couple seconds to go from Park to Reverse or from Drive to Reverse then imminent failure may be in your future. More diagnosing should be your focus at the moment.

The reason why the previous post focuses on a morning shift is because the vehicle recycles the combustion to heat up the engine components faster, this is normal. Once the engine has passed that first "higher than normal" first gear shift then all should be clear.
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#6 (permalink) Old 09-20-2011, 08:46 AM
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You said it thumped "going back to second gear". By this did you mean the 3-2 downshift or the 1-2 upshift? As mentioned, if it was the first shift of the day when the car is cold then a delayed 1-2 shift is normal.

Ditto to a transmission service.

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#7 (permalink) Old 09-20-2011, 09:18 AM
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A properly functioning MB transmission does not hesitate because of cold weather. Look at the AT fluid operating temp specs!

If it does you have a problem!!
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#8 (permalink) Old 09-20-2011, 09:20 AM
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Quote:
Originally Posted by Plutoe View Post
A properly functioning MB transmission does not hesitate because of cold weather.
how would you know, you live in florida
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#9 (permalink) Old 09-20-2011, 09:36 AM
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My transmission was occasionally thumping even after full fluid flush, plug adapter replacement and conductor plate replacement. Occasionally it would go into limp mode. So finally I took my time to wash the plug that did show some fluid and dirt residue. That solved the problem.
Some morning hesitation is normal -even I live in CA. we do have 50F mornings and the first gear shifting can be annoying.
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#10 (permalink) Old 09-20-2011, 10:50 AM
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To the OP, this MB tranny actually has quite a robust reputation - however when the W210 series was introduced MB spec'd the tranny as "sealed for life", with no service required, and this "sealed for life" specification was recanted later.

At 120K depending on the prior owners useage you "should" be able to give your tranny prooer service and avoid costly overhaul/replacement.

If you are from "down under" mate - and it's not a stage avatar as a male dancer - then you know accurate info on MB's can be spotty, and MB dealers there out-of-their-gourd.

Propoer tranny service for fresh fluid needs to be done (correct 5-speed fluid) and at youyr mileage 100% of that fluid should be replaced if you expect to get any more life from the tranny you have, replacement of the tranny adapter plug (USD$20), and other basic issues posted over and over hear on this forum.

It's up to you, if you want to avoid a new tranny, you are going to have to spend some reasonable dollars to service the tranny you have.

Keep the beat !
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