Question about 2004 Volkswagen Passat
Hiya. we have just had a passat in for mot which failed on 2 front cv boots, a collegue repaired them but now there is a fault with the abs, it only happens at low speed when braking very lightly, i have removed both drive shafts and inspected the abs rings and also the sensors which all look fine. also scanned the system for faults but there were no codes present also all sensors were fine, can you shed any light on this.
My 2004 Passat 1.9TDI failed its MOT on a ripped CV Boot. I brought it to a garage and they replaced the faulty CV Boot and fully serviced the car. Since then, the ABS seems to kick in when braking gently, its really annoying. I brought it back to the garage and they cleaned the sensors on the right and checked for any error codes, all seemed fine. I had to leave the garage as they don't know what the problem is, it was fine before I brought it to them.
Any ideas would be much appreciated.
I had the same problem. I took out the speed sensors on the underside of the hub, cleaned them as they were covered with iron fillings, put them back in and problem solved....
Posted on May 05, 2009
Maybe rust on the part the sensor reads on0.
Posted on Feb 06, 2009
SOURCE: abs fault on vw passat
After taking the car back to our most excellent garage they quickly diagnosed the fault with the ABS. It was to do with the gap between the sensor and the wheel - it has to be a very precise distance and was disturbed by the changing of the CV boot (seems to be a common problem).
Half hour later and it is as good as new - this was after lots of electronic testing etc. - the clue was that it didn't give any registered fault on the diagnostic computer.
Hope this helps you Saxoste
Posted on Feb 18, 2009
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