Subject: Re: Rear Power window failure

Ben Swann benswann at
Mon Apr 12 13:05:33 EDT 2004

My most recent experience with this '91 200q 20v sedan ~ 150 k mi - both rear regulators were shot as well as one of the switches (fried due to dead short in the reg.) 


[> From: "Mike Del Tergo" <mdeltergo at>
> Looking for group wisdom.  I have simultaneous failure of both rear window
> functionality from both front and rear switches. (Other windows/sunroof/both
> cigarette lighters work fine) I have determined all switches are fine, front
> lockout switch if functioning properly and both rear doors have power and
> ground to switches.  bentley mentions self resetting circuit breakes for the
Simultaneous failure of only the rear windows would point to the rear
windows lockout switch/circuit, but if so, the driver's rear window switches
would still work, so apparently this is not the problem.  The power window/
sun roof control module is powered from a circuit breaker (in driver's foot
well), not the problem if front windows and sun roof work.  So IMO, your
problem may not have been a single cause, simultaneous failure and the most
likely is several window switches, one in each rear window circuit.

Bernie, thinking out loud.  Sorry, not much help.
> thanks
> Mike]

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