S-Class (W126) 1979-1991: 300 SE, 300 SEL, 380 SE, 380 SEL, 420 SEL, 500 SEL, 560 SEL, 360 SEC, 500 SEC, 580 SEC, 300 SD TURBODIESEL, 300 SDL TURBO, 350 SD TURBO, 350 SDL TURBO

Transmission, reverse failure

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Old Feb 3, 2008 | 07:49 AM
  #1  
grevelopter's Avatar
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Mecedes-Benz 500SE 1989
Question Transmission, reverse failure

Help, loosing reverse gear on my W126, 1989 500SE Automatic, works OK when cold, all forward gears OK, feels like the drive is slipping in reverse, makes a whirring noise on accelerating, but little or no movement, any ideas out there, sounds expensive ?.
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Old Feb 7, 2008 | 09:40 PM
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Quite a few:)
Yes, it will be...ie, you'll be taking the transmission out and having it re-built.

Jonathan
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Old Mar 30, 2009 | 05:46 PM
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What ever is RUNNING
Originally Posted by grevelopter
Help, loosing reverse gear on my W126, 1989 500SE Automatic, works OK when cold, all forward gears OK, feels like the drive is slipping in reverse, makes a whirring noise on accelerating, but little or no movement, any ideas out there, sounds expensive ?.
ME TOO, Reverse clutch pack is gone.
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Old Mar 31, 2009 | 01:47 PM
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Volkswagan
Get the transmission synchronised from an expert very soon to avoid further problems.
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Old Mar 31, 2009 | 02:45 PM
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What ever is RUNNING
Originally Posted by Carcrazy1
Get the transmission synchronised from an expert very soon to avoid further problems.
Auto Trans, $2600.00 for a rebuilt installed. Good or Bad price? 12/12,000 on it.
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Old Apr 7, 2009 | 01:25 AM
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1991 420SEL & 300E, 2003 BMW X5, 2001 740iL all on DUBS
where ther any warning signs before it stopped working? cause lately when i shift to R it takes forever to engage. I have to shift wait like 10sec before the gear actually engages
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Old Apr 7, 2009 | 06:22 AM
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98 Black C43 , 12’ ML 350 Blutec
Has everyone checked their tranny fluid levels ?
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Old Apr 8, 2009 | 11:15 PM
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1991 420SEL & 300E, 2003 BMW X5, 2001 740iL all on DUBS
yea and the funny thing is i had my tranny checked like a year ago they told me my tranny was perfect and didnt need to be rebuilt. So i know its somthing small old tranny fluid cant do this right?
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Old Apr 8, 2009 | 11:36 PM
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Originally Posted by LRPMAN
Auto Trans, $2600.00 for a rebuilt installed. Good or Bad price? 12/12,000 on it.

I paid 900 for a used one with a one year warranty on it installed. But that is out here in Los Angeles and for my 560 SEC
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Old Apr 23, 2009 | 04:18 PM
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87 560 SEC
New filters do wonders. Around $30 for the kit. About reverse, sound like the clutch pack or reverse piston is leaking. either way, it is and R&R. You can rebuild it yourself, I did 3 of mine! Cost was $325 in parts and 4 days of time. But, you need mucho hand tools and possibly access to a press or at least have a large bench vise and an engine stand to hold it. Also, a very clean work area and a digital camera, or a memory like Kreskin.
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Old Apr 30, 2009 | 04:16 PM
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1987 300 SDL
Sounds expensive but send 300SDTURBOS PM to see what he is going to do with two of his cars and explore if you can buy a transmission from him.
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