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

LinkBack Thread Tools Display Modes
Old 12-15-2004, 11:44 AM
Registered User
Join Date: Feb 2003
Location: Valley Center, Ks
Posts: 12
Angry 190D Climate control

I'm having problems with my heater not working.
I have removed the vacuam from the heat valve and pluged the line. This should let the valve remain open. The ube on the cabin side is hot telling me that hot coolant is feeding into trhe cabin.
With the control wheel all the to the red setting, after driving several miles, the heat comes for for several miles and the cools off to blowing cold air. Then later it may or may not start working again. It is so unpredictble.
The same thing happens when I use the defrosters.
Is there some way that I may tie a flap open to get heat until I can pull the dash to fix whatever is wrong?
When I push the down arrow button on the control, I can hear a flap engaging. But still get cold air.

Any suggestions will be appreciated!

Tom Wiggins :

Reply With Quote
Old 12-15-2004, 01:10 PM
Registered User
Join Date: Jun 2000
Location: Saugus, CA USA
Posts: 2,042
I just found this out... loss of vacuum default is full heat out the defroster (close the floor vent).
5 speed '91 190E 2.6 320,000 mi. (new car, fast, smooth as silk six, couldn't find any more Peugeots)
5 speed '85 Peugeot 505 2.5l Turbo Diesel 266,000 mi. (old car, fast for a diesel, had 2 others)
5 speed '01 Jetta V6 (new wifes car, pretty quick)
5 speed '85 Peugeot 505 2.2l Turbo Gas 197,000 mi. (wifes car, faster, sadly gone just short of 200k )
5 speed '83 Yamaha 750 Maxim 14,000 mi. (fastest)
0 speed 4' x 8' 1800 lb Harbor Freight utility trailer (only as fast as what's pulling it)
Reply With Quote
Old 12-15-2004, 05:03 PM
Registered User
Join Date: Sep 2003
Location: Kansas City
Posts: 37
start with the basics

Tom- do a search on the forum. There is some pretty good stuff. The vacuum control module is under the passenger side A/C duct, accessible by taking out the glove box. You really need to get ahold of a mitivac so you can check for leaks on the lines leading out of it. It can be a bit daunting the first time you yank it out with all the lines and such, but just keep track of what you are doing and check each one for leaks. As I said, there are some good posts on the subject. Just as an FYI, it IS possible to set the potentiometer without taking the dash out, but it is not easy.


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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 10:11 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2022, 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