I think this will take a miracle...
For about six months, the electric power supply system has been really erratic. Having had the battery and alternator professionally tested, I'm left scratching my head. Here are the symptoms:
With only blower running:
-at idle, blower runs fine, but air won't heat up
-at 1000-2500rpm blower motor runs very slow or stops
-above 2500rpm, blower runs normally, and air heats up
With blower and defroster running:
-at idle, blower and defroster won't work together (defroster blinks)
-when 2500rpm is acheived and maintained, everything works fine
Note:
-after the car has been driven for a while and is nice and hot, the severity of these problems is minimized

Please help!

Sorry - I thought I had entered this info in a profile field.

Model 124, production date: 04/86

Thanks for any suggestions you may have! Also, please take a look at my post re: fuel economy farther down on the page.

[This message has been edited by Nick Jamal (edited 04-10-99).]

The problem is a strange one. The auto climate control (a.c.c) is a complex system. I would advise a trip to your MB professional on this one.

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MB Medic
14 year MB tech
7 year shop foreman @ independent MB/Volvo shop

You have many systems working in coordination with each other to acheive the acc. I would have a very experienced tech lookat this.

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Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
LEAD TECHNICIAN FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM