Plug and Play Design for Direct Replacement and Ease of Installation Sealed Wire Connections for Corrosion Resistance Shielded Wiring for added Protection from the Elements and to Reduce Electrical Noise and Signal Interference Performs as well as OEM at a Fraction of the Cost Restores Engine running condition from Faulty Crankshaft Position Sensor (CKP) Engine Crankshaft Position Sensors measure crankshaft location to detect misfire and control engine timing. If you have a engine check light P0335 and your car isnt running right, it may be time to replace your faulty Crankshaft Position Sensor. Fit 01-04 BMW 320i /2000 BMW 323Ci/97-01 BMW 323i/99-00 BMW 323ti/01-06 BMW 325Ci/01-05 BMW 325i/01-05 BMW 325xi/2000 BMW 328Ci/96-00 BMW 328i/01-06 BMW 330Ci/01-05 BMW 330i/01-04 BMW 330xi/01-05 BMW 525i/96-00 BMW 528i/01-05 BMW 530i/96-99 BMW M3/04-06 BMW X3/01-06 BMW X5/97-02 BMW Z3/04-05 BMW Z4/2.5L, 2.8L, 3.0L, 3.2L