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-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-06-2015, 09:03 PM
Registered User
 
Join Date: Apr 2015
Posts: 2
transission code 147 97 c280 722.6

Replaced conductor plate, adapter plug, filter and fluid. I have carsoft 7.4 and cleared all codes. Car drove fine for 1 week then limp mode, 3rd gear limp mode. scanned car code 147 came up Gear implausible or transmission slips.Could it be input sensor spring need help

Reply With Quote
  #2  
Old 04-07-2015, 09:36 AM
Registered User
 
Join Date: May 2012
Location: El Dorado Hills, CA, USA
Posts: 418
Welcome to the forum!

Sorry for your problems, DTC code of 147 can be a one way bearing going out(sprag bearing) inside the transmission, and on 1st generation 722.6's this bearing is known to be a problem, but you could be low on fluid, and one of the regulation solenoids could be bad. I kinda think it is a solenoid as it will give you the symptom of okay for a week, and then limp mode. You can replace both regulation solenoids from a junk car 722.6(any 722.6 car). The solenoids are about $300 each. The next thing is under the solenoids is a mesh-filter. It could be blocked, so those need to be blown-out clean, or replaced. The valve body will have to come down, and at that point you will be able to inspect the black speed sensor for cracks on top, or blister breakage.

I Have uploaded a document called 722.6_ETC_Error_code, and it is all about the 722.6 trouble shooting. See post 22 on this thread, and look at pages 52 and 71.

No Transmission Fluid Symptoms - Mercedes-Benz Forum

By the way, you need to have a testing dip stick check the level. You can by a dipstick from peach parts. If the fluid is ugly, change the filter and fluid. Do not do the measure out fluid method, and pour the same amount...

All the best to you,

MArtin
Reply With Quote
  #3  
Old 04-07-2015, 11:04 AM
Registered User
 
Join Date: Apr 2015
Posts: 2
thanks!!!

I checked the fluid level with the dipstick from Mercedes, let car run for 20 minutes shifted gears too, its good. The solenoids have been changed used ones from junk yard. The mesh filters I need to check. Will inspect conductor plate for the cracks and blistering. If it is the solenoids- adapter plug side or the other side. The only thing that puzzled me I changed the adapter plug yesterday and fluid poured out. I am thinking this was the first time I replaced it when I didn't have to drain the pan first.

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 03:53 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page