There are no specific events leading to the failure besides regular use of the vehicle Passat 1999. The ABS warning light periodically has come on and lengthened in duration until it stayed on permanently. The braking is still normal, but the ABS control unit is recommended to be replaced by the dealer. I have not replaced the ABS control. Also, the timing belt tensioner went out on my Passat 1999. I was driving on a freeway when the car just cut out. I coasted it over to the side of the road where it would not turn over. This part was redesigned on later models because of its tendency to fail. I had to redo all of my rods. I still have the old part in my possession.

- Fresno, CA, USA