Crankshaft Position Sensor, Aftermarket - E30 325e 325i 325is E34 525i (12141720856)
High Quality Replacement to BMW # 12141720852
There are very few items that can force an M20 engine to not start and the Crankshaft Position Sensor is one of them. The crank sensor (CPS) tells the ECU what position the cams and pistons are in in order to set timing for engine startup. Without engine position the ECU won't energize the ignition system to start. Sometimes the CPS may be dirty or mounted too far away from the crank pulley (or flywheel on early models) and it simply needs adjustment. Otherwise complete replacement is required.
This crank shaft sensor replaces the outdated / superceded BMW part # 12141720852 (12-14-1-720-852) and is the latest updated version from the manufacturer.
This part is manufactured by an aftermarket supplier of European auto parts, including many sensors and electrical components. While not carrying OEM status, this part follows the design of the original very closely and uses similar materials. The brand may even be OEM to another manufacturer besides BMW. This aftermarket brand has a two year warranty - the same as Genuine BMW and OEM brands.
E30 (84-91) > 325e
E30 (84-91) > 325es
E30 (84-91) > 325i
E30 (84-91) > 325is
E30 (84-91) > 325ix
E28 (82-88) > 528e
E34 (89-95) > 525i M20