Question about 1998 Audi A4

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Sensors ABS BRAKE AIRBAG lights are all on, in the display why, and how can i fix it?

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Disconnecting the battery cable will not fix any of those lights on an Audi.

The ABS and BRAKE lights could be on because of a bad wheelspeed sensor or even if you're low on brake fluid. A VagCom scan tool can narrow this down and if it's a wheelspeed sensor, it can tell you which one is causing the fault. A faulty ABS controller can also trip the ABS light. If your pads are worn down too far, and your car has the wear sensor option (some have it, some don't) it can be telling you that the pads are low and need to be changed.

The airbag light is tripped when one or more airbag connections open up, if an airbag deploys, or if the controller has a malfunction. The usual reason for it coming on is one of the connectors for a side (seat-mounted) bag getting strained because the seat was moved too far back, pulling on the connector and causing it to open slightly. Look under the front of the seat - the yellow connector is the airbag connector. Zip-tie it tightly to hold it together (be careful not to pinch a wire), and you should be good to go. However, as with the other lights, VagCom is required in order to extinguish the light.


Posted on Dec 11, 2008

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Disconnect your neg. cable for about 30 seconds

Posted on Dec 09, 2008

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