Could be the door lock itself, have the convenience system control module scanned for codes and check some of the live data for central locking. You could also check the wiring harness to the door. Also check the footwell areas in the front for any water, the control unit is under the carpet and can get damaged if any water gets in, plenum chamber drains block up easily on passat.
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Sunday, January 15th, 2012 AT 3:57 PM