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 08-04-2000, 01:16 PM
Registered User
 
Join Date: Aug 2000
Location: Phoenix, AZ
Posts: 82
Transmission will start in low gear for first two stop and starts. It will then only drop to second gear. Had a new valve body installed still same problem.
Reply With Quote
  #2  
Old 08-05-2000, 10:24 PM
YOUNGESTMBTEC
Guest
 
Posts: n/a
Mercedes for years has made there transmissions start off in second instead of first. so the first thing i'd look for is the shift point of the transmission. then how hard the shift is. please reply with that info for further info. also if the kick down sensor sends a message at a light to "kick down to a lower gear" that It will start of in first and not second.
Reply With Quote
  #3  
Old 08-05-2000, 11:33 PM
Moderator
 
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
By any chance have you had a hard time getting into park after such episodes.

The governor has a piston that pops at 10kph. After it moves the governor pressure builds. Once this has taken place it makes enough pressure to keep a reverse interlock engaged (prevents accidental shifting into reverse above 10kph). IT ALSO keeps the trans from going back into first gear as all 83 300Ds would normally. If this governor piston sticks the car won't go back into first gear or park as the shifter would have to move through reverse.

I've seen this happen on at least two 722.3 transmissions including the one in my 84 928 Porsche.


------------------
Steve Brotherton
Owner 24 bay BSC
Bosch Master, ASE master L1
26 years MB technician
Reply With Quote
  #4  
Old 08-07-2000, 11:44 AM
Registered User
 
Join Date: Aug 2000
Location: Phoenix, AZ
Posts: 82
I think the key to my problem is that the transmission will start normally in low gear for the first two starts but then will only downshift to second until it sits for a while,it will then start in low but then after two stops will only start in second!!
quote:
Originally posted by YOUNGESTMBTEC:
Mercedes for years has made there transmissions start off in second instead of first. so the first thing i'd look for is the shift point of the transmission. then how hard the shift is. please reply with that info for further info. also if the kick down sensor sends a message at a light to "kick down to a lower gear" that It will start of in first and not second.


Reply With Quote
  #5  
Old 08-07-2000, 11:48 AM
Registered User
 
Join Date: Aug 2000
Location: Phoenix, AZ
Posts: 82
Steve, I have no trouble getting in to park, just can't get back to low gear after first two stops.
quote:
Originally posted by stevebfl:
By any chance have you had a hard time getting into park after such episodes.

The governor has a piston that pops at 10kph. After it moves the governor pressure builds. Once this has taken place it makes enough pressure to keep a reverse interlock engaged (prevents accidental shifting into reverse above 10kph). IT ALSO keeps the trans from going back into first gear as all 83 300Ds would normally. If this governor piston sticks the car won't go back into first gear or park as the shifter would have to move through reverse.

I've seen this happen on at least two 722.3 transmissions including the one in my 84 928 Porsche.





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


Similar Threads
Thread Thread Starter Forum Replies Last Post
1983 300D Electrical Troubles xander6 Diesel Discussion 2 05-23-2006 12:10 AM
300d transmission questions 123300d Diesel Discussion 1 05-13-2004 02:49 PM
300D non-turbo engine, transmission Joseph Bauers Mercedes Used Parts For Sale & Wanted 1 05-10-2004 02:21 PM
Fs: 1983 300d CuCullin Mercedes Cars For Sale 0 06-20-2003 05:54 PM
would a 300d transmission work in a 300sd? crx Diesel Discussion 1 10-16-2002 09:25 PM



All times are GMT -4. The time now is 09:06 AM.


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