Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 11-13-2002, 03:13 PM
Registered User
 
Join Date: May 2002
Location: Chicago
Posts: 31
W126 auto trans...slips out of gear on upshift

1984 500SEL (euro model)...On normal accelleration, car shifts up through gears, but between 2 and 3 (possible 3 and 4 also) it slips out of gear momentarily. If I keep pedal down, it slips back into gear with a noticable clunk. This doesn't seem to happen if I drive around in "3" instead of "D". In general, the kickdown from 4th into lower gears (under 1/2 to full accelleration) has a delay, then a good hard clunk. I am going to check vacuum and bowden cable for the hard downshifting, but the false neutral thing scares me a bit.
Reply With Quote
  #2  
Old 11-13-2002, 03:43 PM
downsmith's Avatar
Registered User
 
Join Date: Jul 2001
Location: Oklahoma Sooners Alumnus
Posts: 116
Sounds like your modulator valve is either bad or not getting vacuum.

And I am sure that you are keeping the fluid at the right level. If it gets to low it will do that.
__________________
R. Downs
1985 500SEL (260,000 miles) SOLD!
1974 280 SOLD!
1994 Volvo 850 Turbo Wagon (Yuppie Ice Sled)

"I know I have a Benz and they know it too." If you start bragging about it or shoving in people's face, you then become a Wally; especially to the girls.
Reply With Quote
  #3  
Old 11-13-2002, 04:47 PM
Moderator
 
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
First you should adjust the link at the back of the motor to the control pressure cable. Mark what you have and lengthen it an 1/8 inch. Try this for a few days. If it isn't enough try turning the modulator adjustment a turn clockwise. Maybe both maybe more one than another, but do the cable first maybe twice.
__________________
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 04:26 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page