Mechanics

MERCEDES BENZ S500 BLOWER MOTOR PROBLEM

1995 Mercedes Benz S500

Air Conditioning problem
1995 Mercedes Benz S500 V8 Two Wheel Drive Automatic 77000 miles

My blower for the AC or heater is intermitent. When it does work the blower speed starts off perfect and after 5 minutes it slows down and eventually stops till I shut the car off and wait about an hour and then restart it.
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Spendthrif
September 10, 2009.



Posted By: carguy#1 Flag Post For Monitor Review
Shop: MY CAR GUY
Date: 7/12/2009 6:34:24 PM

Hey Doc J.,

Had a similar problem/vehicle about two months ago. By passed everything and found motor would work if direct wired. Tested wiring from switch and found it to be working. at that point had to assume that controller (mounted on motor assy) was bad. Found out they were common to fail and had been redesigned. Had to replace motor and controller ($700.00+) Hope some of this helps.

CarGuy#1 eTN

This is from Mitchell on demand help tips, you might be able to get one checper by cardone, aftermarket CHINA parts maker.


http://www.2carpros.com/forum/automotive_pictures/62217_MB_S500_1.jpg


Merlin2021
Sep 10, 2009.
Hi
Remove wind screen to gain acess to blower motor.


http://www.2carpros.com/forum/automotive_pictures/198357_Graphic_114.jpg


Check out blower regulator A32n1. Power in motor and ground through reg. When motor stops check for power and ground.
Let me know
Thanks for donate

Docfixit
Sep 10, 2009.