my airbag fault light came on yesterday. I read in the manual - it said it should be seen by a vw tech asap. I know the manual always says that, but is this serious? Also, could I disconnect the battery and reset the ecu manually? Please let me know, as I am worried the air bag will go off. I want to set up an appointment for the dealership to replace my drivers side window regulator. its losing power when it gets to the top. thanks.