Go Back  MBWorld.org Forums > Mercedes-Benz Sedans > E-Class (W210)
1997 E320 W210/ 722.6 Trans Wiring Harness >

1997 E320 W210/ 722.6 Trans Wiring Harness

Notices
E-Class (W210) 1995-2002: E 200, E 220D, E 240, E 290TD, E 300TD, E 200, E 240, E 280, E 320, E 420, E 430 (Wagon, Touring, 4Matic)

1997 E320 W210/ 722.6 Trans Wiring Harness

 
Old 03-25-2019, 10:01 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Mar 2019
Posts: 15
Liked 0 Times in 0 Posts
MB 1997 E320/w210
1997 E320 W210/ 722.6 Trans Wiring Harness

Hello All,

I recently had my 1997 E320 go into limp mode. I have found that the wiring harness from the TCU to the tranny does not have any current going through the wires. All 16 of them.
I want to change the harness but am unsure how to go about it. Any suggestions?





Max
max2015 is offline  
Old 03-25-2019, 11:07 PM
  #2  
Senior Member
 
Join Date: Nov 2015
Posts: 433
Liked 32 Times in 32 Posts
02w163ML500 / 97w210E50AMG / 99w202C230k /
Originally Posted by max2015 View Post
Hello All,

I recently had my 1997 E320 go into limp mode. I have found that the wiring harness from the TCU to the tranny does not have any current going through the wires. All 16 of them.
I want to change the harness but am unsure how to go about it. Any suggestions?





Max
Are you sure it's not just the connector that is the issue? tranny oil leak?
What codes were scanned?
khomer2 is online now  
The following users liked this post: khomer2
max2015 (03-26-2019)
Old 03-26-2019, 12:14 AM
  #3  
MBWorld Fanatic!
 
Join Date: Nov 2012
Posts: 4,653
Likes: 0
Liked 478 Times in 382 Posts
A gaggle of MB's
Please see stickies in W210 forum at Benzworld - replace tranny adapter connector (genuine MB or MOPAR only $14) - and pull and clean Transmission Control Module in engine compartment with 1/2 can of MAF cleaner..
fabbrisd1 is offline  
The following 2 users liked this post by fabbrisd1:
khomer2 (03-26-2019), max2015 (03-26-2019)
Old 03-26-2019, 03:10 PM
  #4  
Junior Member
Thread Starter
 
Join Date: Mar 2019
Posts: 15
Liked 0 Times in 0 Posts
MB 1997 E320/w210
The oil that leaked into the original TCU was very little but I did get another that was completely dry and in good shape.
I didn't know you could change the plug..Does it just unscrew apart?
max2015 is offline  
Old 03-26-2019, 03:11 PM
  #5  
Junior Member
Thread Starter
 
Join Date: Mar 2019
Posts: 15
Liked 0 Times in 0 Posts
MB 1997 E320/w210
Thanks I will do that. Any advise on how to get the TCU out of the case to clean it??
max2015 is offline  
Old 03-26-2019, 03:24 PM
  #6  
Senior Member
 
Join Date: Nov 2015
Posts: 433
Liked 32 Times in 32 Posts
02w163ML500 / 97w210E50AMG / 99w202C230k /
Originally Posted by max2015 View Post
The oil that leaked into the original TCU was very little but I did get another that was completely dry and in good shape.
I didn't know you could change the plug..Does it just unscrew apart?
Did you follow fabbrisd1 advice?
Have you investigated this?
Example....
khomer2 is online now  
Old 03-26-2019, 03:34 PM
  #7  
Junior Member
Thread Starter
 
Join Date: Mar 2019
Posts: 15
Liked 0 Times in 0 Posts
MB 1997 E320/w210
HI,

Yes I followed that video and others and I replaced the conductor plate.


Thanks again
max2015 is offline  
Old 03-26-2019, 03:36 PM
  #8  
Junior Member
Thread Starter
 
Join Date: Mar 2019
Posts: 15
Liked 0 Times in 0 Posts
MB 1997 E320/w210
I replaced the adapter plug was wondering how to replace the plug on the harness




Thanks
max2015 is offline  
Old 03-26-2019, 03:41 PM
  #9  
Senior Member
 
Join Date: Nov 2015
Posts: 433
Liked 32 Times in 32 Posts
02w163ML500 / 97w210E50AMG / 99w202C230k /
Originally Posted by max2015 View Post
Thanks I will do that. Any advise on how to get the TCU out of the case to clean it??
I personally have never had this issue with the TCU, however, read here and post 16.

Last edited by khomer2; 03-26-2019 at 04:22 PM.
khomer2 is online now  
Old 03-26-2019, 03:43 PM
  #10  
Senior Member
 
Join Date: Nov 2015
Posts: 433
Liked 32 Times in 32 Posts
02w163ML500 / 97w210E50AMG / 99w202C230k /
Originally Posted by max2015 View Post
I replaced the adapter plug was wondering how to replace the plug on the harness




Thanks
Why do you need to replace the plug on the harness?
Use electrical contact cleaner.
khomer2 is online now  
 

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:

Quick Reply: 1997 E320 W210/ 722.6 Trans Wiring Harness


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: