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Old 10-14-2007, 09:16 PM
ik04's Avatar
Diesel-Doer
 
Join Date: Feb 2007
Location: Texas, where else?
Posts: 42
Question Help with heater controls problem...

Howdy All,

My 300D environmental system has been freaking out lately. When I select the AC or vent positions on the switch panel, the fan and A/C pump click on and off. If I select the defrost position, the pump and fan work fine.

It started about a month ago when I noticed a lot of clicking from the dash in the switch area.

Is there a relay or controller going bad or a ground problem here? I wonder if anyone has experienced this issue... There seems to be a thread here for just about every problem imaginable for this car. If I ignore the clicking and fanless heating for a while, it works normally.

I don't have time to troubleshoot all the electrical connections, so hopefully this is a common thing. I trust you guys to have some kind of horror story for me...

Thanks,

Kevin

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Old 10-16-2007, 10:42 PM
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Loose Cannon - No Balls
 
Join Date: Jan 2006
Location: Northeast Indiana
Posts: 10,765
It would help to know the year, the 124 suffers from failing CCUs.
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Old 10-16-2007, 11:26 PM
ik04's Avatar
Diesel-Doer
 
Join Date: Feb 2007
Location: Texas, where else?
Posts: 42
Smile Oh, yeah...

1987 300D OM603 engine.

I forgot my vehicle year and model aren't shown in my profile.

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