Location
B600 | Crankshaft position sensor |
W07.04-1073-12
The crankshaft position sensor (B600) is located on the left on the timing case.
Task
The crankshaft position sensor (B600) makes electrical voltage signals available to the engine management (MCM) control unit (A4) for a rotating engine from which the rotational speed as well as the position of the crankshaft can be determined.
Body
The crankshaft position sensor (B600) is an inductive sensor and is fitted with a sensor coil as well as a permanent magnet.
Function
The permanent magnet on the crankshaft position sensor (B600) generates a magnetic field. Once the flywheel is rotated, magnetic field fluctuations occur due to grooves in the flywheel which are located, up to a gap of 18°, 6° apart around the flywheel circumference. Inductive voltage signals are generated in this way in the crankshaft position sensor coil (B600) with the aid of which the engine management (MCM) control unit (A4) can determine the engine speed and, by using the gap of 18°, the angular position of the crankshaft.