[W126 Coupe] FW: a/c problems

[Hugh MacGregor]

----- Original Message ----- 
From: Hugh MacGregor 
To: mb coupes 
Sent: Tuesday, July 22, 2008 6:56 PM
Subject: a/c problems

Hi All
My 86 560sec was converted to 134a by the previous owner. Last summer I topped up the 134a charge and the a/c worked great. This year I did the same thing, high low pressures are in range, still the compressor won't come on. I looked back through the archives for tips , I jumped the pressure switch on the dryer at the R/H side of the radiator, the auxillary fan came on the compressor did'nt. I jumpered the 5&7 pin on the klima relay and yes the compressor kicked on. I swapped the klima relay with a good one and still no compressor. I see in the archives that Markus Meyer had a similar problem last year, I think he installed a new speed sensor on the compressor, but I'm not sure how to test it. Can anyone help me out! I'm roasting.
 
Hugh MacGregor
86 560 sec
_________________________________________________________________

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.pairlist.net/pipermail/mbcoupes/attachments/20080722/6ca4fd0c/attachment.htm>