[W126 Coupe] 1985 500 SeC

[David King]

You have a tear in the control valve in the engine cooling system.  For now, if you start the car with the heat on you will have heat.  If you try to turn it on after the car is running only cold air will blow in. 
David A. King, PE&LS
A2 Maps & Surveys
627 Norwich Road
Oakdale, CT 06370
Ph. (860) 889-5905
Fax (860) 889-5942
http://www.A2Maps.com
  ----- Original Message ----- 
  From: WRick11499 at aol.com 
  To: mbcoupes at mbcoupes.com 
  Sent: Sunday, February 18, 2007 1:41 PM
  Subject: [W126 Coupe] 1985 500 SeC


  Its cold here in MD. and my heater is acting crazy. Some times works and sometimes not.I bought a rebuilt  climite control unit and it does the same thing.Some times the defroster blows hot and the center vents blows cold and sometimes every thing works alright but most of the time   all blow cold.The  small pump on the firewall seems to be working plus I bought a newOverload relay.If I disconect  a battery cable and then replace it, itseems to be O.K. till I turn the key off, so I think it must be electrical, are there other relays that I should check and where are they located in the fuse box, has anyone else had a problem like this.Thanks for any help    Rick 


------------------------------------------------------------------------------


  The MB Coupes Website!
  W126 SEC Mailing List
  Postings remain property of MB Coupes, L.L.C.


------------------------------------------------------------------------------


  No virus found in this incoming message.
  Checked by AVG Free Edition.
  Version: 7.5.441 / Virus Database: 268.18.2/692 - Release Date: 2/18/2007 4:35 PM
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.pairlist.net/pipermail/mbcoupes/attachments/20070219/b7563301/attachment.html