Alarm did not go off during entire wheel swap task...

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Apr 14, 2009 | 07:44 AM

drhaller

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Alarm did not go off during entire wheel swap task...

I swapped the winter wheels/tires (16" stock dual spokes, Nokia RSi's) out for the summer wheels/tires (17" AT Italia S5/Kumho Ecsta AST KU25's) this past weekend.

I had to whale (as in "to hit, thrash, or beat soundly") on the winter rims with my rubber boots to break them off the hubs.

Never once did the car alarm go off. I was quite shocked to learn it was locked the entire time (I had to get my car keys to fetch the tire pressure guage from the glove box).

I want to make my alarm "just a bit" more sensitive... and will break out the VAG-COM and investigate the issue sometime soon.

Any similar experiences out there? My car is a 2001 A6 2.7T.

/dan

Apr 14, 2009 | 08:10 AM

4Driver4

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Joined: Oct 2002

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The sensor on the alarm is not a motion sensor. It is for glass breakage.

Apr 14, 2009 | 10:40 AM

drhaller

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For those that are detail oriented... the protection is detailed here,,,

There are no tilt/swivel/yaw or shock sensors related to the alarm system on the 2001 A6. There are glass breakage sensors but only on the rear windows of the Avant model. This is what the repair manual says:

Anti-theft alarms triggered by Central Locking control module:

unauthorized opening of trunk lid/tailgate
unauthorized opening of hood
signal from ultrasonic sensor control module
unauthorized opening of driver's door
unauthorized opening of front passenger door
unauthorized opening of rear left door
unauthorized opening of rear right door
unauthorized removal of car radio
unauthorized starting (shorting between terminals 30 and 15)

Anti-theft alarms triggered by Ultrasonic Sensor control module:

The ultrasonic sensors in the upper right/left B-pillar trim monitor the door windows and relay the monitoring signal to the ultrasonic sensor control module.

Alarm from front anti-theft sensor (1)
Alarm from rear anti-theft sensor (1)
Attempted break-in via front left door window
Attempted break-in via front right door window
Attempted break-in via rear left door window
Attempted break-in via rear right door window
Alarm via glass break sensor (2)

NOTE 1: the alarms seem to be for front/rear although the sensors are listed as left/right (G170/G171).
NOTE 2: the glass breakage sensors (left G183/right G184) for the rear side windows and the conductor loop in the rear window provide external vehicle security, however only for the Avant.

/dan

Last edited by drhaller; Apr 16, 2009 at 08:36 PM. Reason: cleaned it up a bit...

Apr 14, 2009 | 11:21 AM

jbchinoca

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Joined: May 2004

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From: Chino CA

I have a problem with that. I had the thing set, driver's window open, and the minute I put my arm inside to get something off the seat, the alarm went off.