I have an 88 420SEL, and was curious as to where the temp sensor is for interior tempurature?? - In the winter, it seems to regulate fine, but i notice in the summer it tends to keep fan on higher than I would if i were doing it manually...

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I will assume that you are speaking of the climate control and will answer accordingly...The temp sensor is two part. It is located in the dome lamp assembly. There is a temperature sensor and an aspirator motor. The aspirator motor pulls the air over the sensor so it does not heat sink. Make sure it is pulling.

Do this by ripping a small piece of paper and see if it will hold to the little vent that pulls in the air.

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Benzmac:
Donnie Drummonds
1992 500E (very soon I hope :)
1981 280GE SWB
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

Yes - it was the climate control control., I checked it and the fan was pulling - it must just be the heat that hangs near the top of car that makes it run a little longer on high. Also, I like to have the back of the sunroof open when I first get in, so perhaps it senses the outdoor heat as well.

Thanks for your help...

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