Rain damage, gearbox, out of gear over 1000rpm - Mercedes-Benz Forum
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post #1 of 13 (permalink) Old 09-11-2018, 02:50 AM Thread Starter
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Rain damage, gearbox, out of gear over 1000rpm

Please help.
This dumm man left his sun roof open in heavy rain. At first drive of 1/2 h everuthing worked fine. but after parking for 45mins. the car started fine, but went out of gear over Ī1000rpm. In reverse it hold a little longer, but not enough.
My mecanic opened the console and dried everything. He also read out the codes, and no codes were given.
What are the steps I need to take?
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post #2 of 13 (permalink) Old 09-11-2018, 02:56 AM
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Rain damage, gearbox, out of gear over 1000rpm

You may need to pull the shifter completely apart and get it dried out better and clean it with CRC electrical contact cleaner.
Thatís where I would start

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post #3 of 13 (permalink) Old 09-11-2018, 03:01 AM Thread Starter
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You may need to pull the shifter completely apart and get it dried out better and clean it with CRC electrical contact cleaner.
Thatís where I would start

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Thanks, that's what he did (drying twice) and spray water evading and contact spray. But will do it again.
Any other thoughts?
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post #4 of 13 (permalink) Old 09-11-2018, 03:03 AM
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Is the gear your in coming up in the dash.


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post #5 of 13 (permalink) Old 09-11-2018, 03:07 AM Thread Starter
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Yes, the gear shows and I can feel it is engaged (slight push forward / reverse). Although not as strong as before, I think. Same in reverse, but as soon as I throttle up to get moving, it feels like the clutch starts to slip and very quickly it loses the gear. I've tried al gears, and they show up, but none work...
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post #6 of 13 (permalink) Old 09-11-2018, 03:13 AM
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Rain damage, gearbox, out of gear over 1000rpm

You need a scanner that will read transmission codes.
Maybe check you 13 pin trans plug is not leaking fluid.
Have you checked the fluid level

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post #7 of 13 (permalink) Old 09-11-2018, 03:30 AM
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Quote:
Originally Posted by mattml430 View Post
You need a scanner that will read transmission codes.
Maybe check you 13 pin trans plug is not leaking fluid.
Have you checked the fluid level

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Matt, the selector lever is considered a control module and has its own codes. Therefore, it is not a trans. problem.

And yes, his mechanic did not have a scanner or else the Selector Lever would have codes stored.

He will also have, in the near future, problems with the windows, mirrors and door locking when the lower control panel dries up.
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post #8 of 13 (permalink) Old 09-11-2018, 03:36 AM
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Thanks Jim I did not know that the shifter had its own codes.



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post #9 of 13 (permalink) Old 09-11-2018, 04:11 AM Thread Starter
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Thanks Matt and Jim,

This is very helpfull.
The plug does not leak and the fluid is checked and was fine.
We will get the proper scanner to read out the codes.
Just for my curiosity: Are we seeing the lower control panel on your photo's Jim.
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post #10 of 13 (permalink) Old 09-11-2018, 04:40 AM
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Yes it is LCP and it has its own set of codes. It also serves as interface to rear a/c controls.
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