Brand New Rear ABS Wheel Speed Sensor For 2008-2012 BMW 1 & 3 Series 135I 328I 335D 335I and 335ISReplace your prone to fail ABS wheel speed sensors with these new direct replacement sensors. Symptoms of a malfunctioning ABS/SPEED sensor include having your ABS improperly engage or not engage ABS light staying on and poor braking performance. The factory ABS sensors have been known to fail and unfortunately the dealers' solution to this problem is cleaning the sensors rather than replacement which most often results in the reoccurrence of the same ABS problem. Includes 1 sensor (with harness connector if pictured).Manufacturer: AIP Electronics100% New ConstructionHigh Quality OEM Replacement PartFit and Quality GuaranteedReady for Install Straight out of the boxChannelSaleTech-specs34526762476 ALS1842 5S10524 SU11977