Peter Schulz pcschulz at
Sun Apr 26 18:19:38 PDT 2009


Did you properly index the gear for the alarm on the door lock cylinder?
I had the same behavior that you described on my CQ when I replaced 
the pot metal link..
turned out that I installed it 1 tooth off...

I didn't always engage the alarm, but enough times for me to take it apart...

At 04:19 PM 4/26/2009 -0400, John Lagnese wrote:
>Exactly, I didn't lock the car. In Maine and NH locking is not too regular
>of an event. When the alarm is going off the key locking and unlocking the
>driver door shuts it off.
>The driver door lock has been changed several years ago by me as well.
>-----Original Message-----
>From: 200q20v-bounces at [mailto:200q20v-bounces at] On
>Behalf Of Henry A Harper III
>Sent: Sunday, April 26, 2009 9:42 AM
>Cc: 200q20v at
>Subject: RE: alarm
> > On Sun, Apr 26, 2009 at 1:03 AM, John Lagnese <jlagnese at> wrote:
> > >
> > > My 91 200 TQ 20V started having problems today. It went off a number of
> > > times when I opened the car door without my having set it. If I
> > locked and
> > > then unlocked the door the alarm went off.
> > > Any BTDT on this? If I pull the fuse will this work?
> >
> > There is a plastic ring inside the door handle which presses against
> > microswitches to detect the key locking/unlocking.  It is known for
> > breaking or becoming mis-indexed.
> >
> > Brett
>On my car the "disarm" wire from the driver's door alarm microswitch on the
>lock cylinder broke, in the hinge area of the door of course. The alarm
>brain never got the signal from the switch to disarm when I turned the key
>in the lock, so the alarm went off. I used the passenger door to unlock the
>car for a while until I got around to fixing all the wires in the driver's
>door hinge.
>When you say you didn't "set" the alarm John, do you mean you didn't lock
>the car? The alarm "sets" every time you lock up, or it should.
>"if your type 44 driver's door hinge area wires haven't been repaired, they
>are probably broken - maybe even passenger door and trunk if you're lucky"
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-Peter Schulz
Chelmsford Ma, USA

1995.5 S6 Avant Emerald/Ecru
1995.5 S6 Avant Silver/Platinum
1991 90 20v Q Red
1991 CQ silver  (eS2 recipient) 

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