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 03-18-2002, 02:23 AM
KNanthrup's Avatar
Registered User
 
Join Date: Mar 2002
Location: Issaquah, WA
Posts: 180
Transmission shift from 2nd to 3rd

Alright, I just got my '86 300E (W124) a month or so ago, and when I bought it, I noticed that it has a somewhat lengthy shift time between 2nd and 3rd gear (auto transmission). I find this a little scary because I'm starting to assume that my transmission is screwed up and starting to go out or something. I checked the fluid and it's full and looks fine. I was wondering if anyone else has experienced this or knows anything about it. It seems abnormal to me because it takes a second or two which when punching on the gas is long enough to rev up the engine inbetween gears then it catches 3rd. It doesn't seem extremely bad, but it definately concerns me, can anyone offer some info?
Reply With Quote
  #2  
Old 03-19-2002, 02:46 AM
KNanthrup's Avatar
Registered User
 
Join Date: Mar 2002
Location: Issaquah, WA
Posts: 180
no ideas/comments? oh well, i supose i may take it over to the shop and have it looked at but i wont be able to afford the fix on it i bet, not sure what all would need replacement, hopefully just something between those two gears if anything.
Reply With Quote
  #3  
Old 03-19-2002, 09:15 AM
Moderator
 
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
When this trans shifts from 2nd to 3rd the valve body releases a "band" & locks up a clutch pack(K1), I would think that the K1 clutch pack is at fault & complete disassembly is needed. You can try increasing the modulator pressure to see if this clutch pack will lock up a bit quicker.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
Reply With Quote
  #4  
Old 03-19-2002, 07:12 PM
KNanthrup's Avatar
Registered User
 
Join Date: Mar 2002
Location: Issaquah, WA
Posts: 180
I see... then that leaves me with 2 questions.

1) Because it has to switch clutch packs (or whatever you said) between 2nd and 3rd, is it typical to take slightly more time to shift or should it still be a quick catch like all the other gears and no noticable difference.

2) How would I go about increasing the pressure? Is there like a hypertech programmer or something of that sort I can buy to use on my computer chip or do I need to buy a new chip and if one of these are true, where can I get this/these item(s).
Reply With Quote
  #5  
Old 03-19-2002, 08:35 PM
Moderator
 
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
There isn't any computer controls at all. Adjusting the modulator is a simple task. Do have use a repair shop that can make a transmission adjustment? should take 30-45 minutes.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
Reply With Quote
  #6  
Old 03-19-2002, 09:38 PM
Mattman
Guest
 
Posts: n/a
My 89 560SEL has a similar shift pattern to yours, also in addition to that the downshift from 3-2 is abrupt. Adjusting the modulator in this case tightens the upshift and also the downshift. With the downshift problem this indicates that a full rebuild is necessary. Hope yours can be sorted with just a modulator adjustment.

Cheers
Matt.
Reply With Quote
  #7  
Old 03-19-2002, 10:19 PM
Registered User
 
Join Date: Dec 2001
Location: Chicago
Posts: 100
Mine does the same thing once in a blue moon, I even forget that it does it some times.

M.B. Doc does that fix you suggested apply to me?

If yes, how do I go about it? I don't have the CDs I wnat them but they are nto avialable for my car.

Thanks
__________________
1993 400SEL (W140) 281K
1999 S500 (W140) 163K (Sold)
2002 S500 (W220) 72K
1999 S500 (W140) 88K
You cannot simultaneously prevent and prepare for war.
Albert Einstein (1879 - 1955)
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
83 240D tranny won't shift past 2nd gear. dmorrison Tech Help 15 08-14-2006 08:25 PM
Large electrical connector on transmission on shift linkage. lietuviai Diesel Discussion 2 05-06-2004 09:55 PM
Transmission Shift Upgrade to Touch Shift Tump Performance Paddock 3 06-10-2003 01:05 AM
Tranny slips 2nd -3rd flowdrip Tech Help 44 02-17-2003 10:25 AM
transmission slow shift between 2nd and 3rd oldblue1 Tech Help 6 11-30-2002 06:03 AM



All times are GMT -4. The time now is 09:04 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