Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 08-08-2001, 11:50 PM
Posts: n/a
Question ac/heat blower box doors 300D

how can I get the heat/AC to switch from hot to cold and vice ver sa? What controls the doors? how can I troubleshoot?
Reply With Quote
Old 08-09-2001, 11:28 AM
Posts: n/a

Do a search on A/C contols (and related words). There is a lot of discussion about the vacuum system and how it can mess up the flow of air to various vents as well as the mix of air. You will find ways to try and ferret out the problem.

Also, there is a little valve on the firewall that controls flow of warm air. Can't remember the name but it can be easily repaired with inexpensive kit available at FastLane. A small rubber diaphram gets old and ruptures.

Good luck,

Reply With Quote


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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
foam insulation seal between blower box assembly and firewall/bulkhead? neumann Tech Help 2 06-18-2003 04:01 PM
300D heater/AC blower spjohns1 Tech Help 3 02-17-2001 11:24 AM
1985 300D Electrical Problem in fuse box jomar Tech Help 3 09-15-2000 07:43 AM
'79 300D vacuum/heater box thing Joe Fazio Tech Help 2 05-05-1999 08:43 PM
300D, 1979 Fan blower motor The Agency Tech Help 1 03-13-1999 03:09 AM

All times are GMT -4. The time now is 05:49 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, 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