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 > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 03-16-2016, 10:30 PM
Registered User
 
Join Date: Sep 2013
Location: Alhambra California
Posts: 1,913
1985 300D AC/ Heater Issue

1985 300D: up until yesterday my AC was working perfectly but the heater was working at times but then not. I replaced the monovalve with an NOS complete monovalve (new in MBZ package but about 20 years old - I did check the rubber diaphram and looks great, no tears and very flexible).

After changing the monovalve I now have constant heat but no AC. The compressor is engaging and yesterday I did have great AC. I changed back to the original monovalve but still have constant heat.

Any suggestions? Thanks.
Reply With Quote
  #2  
Old 03-16-2016, 10:33 PM
Registered User
 
Join Date: Sep 2013
Location: Alhambra California
Posts: 1,913
Bump
Reply With Quote
  #3  
Old 03-16-2016, 10:41 PM
Registered User
 
Join Date: Mar 2005
Location: SoCal
Posts: 657
You might need to tighten up, clean up the connectors, terminals to the monovalve.
__________________
'85 300D Cal 280,000 miles
'07 C230 37,000 miles
Reply With Quote
  #4  
Old 03-16-2016, 11:37 PM
Registered User
 
Join Date: Sep 2013
Location: Alhambra California
Posts: 1,913
w123
Reply With Quote
  #5  
Old 03-17-2016, 03:28 PM
Registered User
 
Join Date: Sep 2013
Location: Alhambra California
Posts: 1,913
Dirty terminals. Fixed the problem. Thanks.
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 01:01 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page