Date: Sun, 20 Dec 1998 22:03:23 GMT
From: Conrad B Nelson <>
Subject: 93 9000CSE Climate Control Problems Don't trust dealer

Help! I have a 93 9000CSE with 102K that has been misdiagnosed at the dealer multiple times for multiple problems. Currently the Climate control is stuck on heat. It's behaving like the air is being sucked through the heat exchange unit no matter what the setting. If I turn the unit off hot air comes through the vents instead of just outside air. If I turn the system to low the fan goes to full the compressor kicks in but the air still comes out hot. I took it to the dealer who said it was the ECM and the repair would cost 1500.00 I told them to put the car back together as is and I'd get the repair done elsewhere(this only cost 300.00). Low and behold the system worked correctly for the next two months. The system has started acting up again. Has anyone seen this happen or could you point me to some trouble shooting material for the climate contrl system. Thanks for the help Conrad B Nelson

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