This bulletin applies to 2014 Land Rover Discovery Sport and Range Rover Evoque vehicles. Cases have been reported wherein a Hill Descent Control or Slip Control System warning light is displayed. This may be due to a build-up of contaminants on the front wheel bearing tone rings. This may cause an interruption to the signal provided by the wheel speed sensor. Cleaning the tone rings and wheel speed sensors may be sufficient to repair the condition without the need to replace the bearing and knuckle assembly.
Example of contaminant on the wheel speed sensor (top) and tone wheel (bottom).
About the Author
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian
Motor Age Editor
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.