Quote:
Originally Posted by f18levine
2003 X5 4.4i w/ 98k miles. DSC/BRAKE/ABS light came on. Code indicated left wheel speed sensor failed. R/R WSS, lights still on. Swapped WSS from left to right. DSC read under-voltage condition as well (12.5v). Multiple mechanics scratching heads. Local BMW dealer/service center quoted $3.5k to R/R DSC. Another mechanic quoted $1.5K for rebuilt BOSCH OEM although believes that arcing / failing electrical line may be to blame. Car is currently in shop.
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2 things. Have you tested your alternator voltage?
Secondly, you may need to have your ABS module rebuilt or get a new ABS module, the modules themselves are notorious for throwing false wheel sensor codes.
try
www.boschabsrepair.com for repair service, or buy a new module from a Bavarian parts supplier for around 450. If you get a new module, it will need to be coded to the car as well, good luck!