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March 4, 2014 Service bulletin

The vehicle's anti-theft alarm sounds when the driver door is unlocked with a mechanical key

Audi technical service bulletin A961482 2036344- for 2010 Audi A4, 2012-2015 Audi A6 and 2009-2015 Audi Q5 and others.

Bulletin number
A961482 2036344-
Component
Equipment: electrical: anti-theft devices
Summary
The vehicle's anti-theft alarm sounds when the driver door is unlocked with a mechanical key. No DTCs are stored. The keyless remote was not used to unlock the vehicle. In order to minimize current draw after the ignition has been turned off, the electronics system of the vehicle goes into sleep mode. During this time, each module monitors the CAN bus more slowly than when the electronics system is awake. Because the system is being monitored more slowly, there is a delay in the waking of the central locking system. This delay causes a delay in the disabling of the anti-theft alarm system when the manual key is used. If the key is turned in less than a quarter of a second, the system can unlock the vehicle even though the anti-theft alarm has not been disabled.

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