Component description for the crankshaft position sensor - GF07.04-P-6010BK

ENGINE 113.967 in MODEL 219

ENGINE 113.964 in MODEL 164.1

ENGINE 113.971 in MODEL 251

Location

The crankshaft position sensor is located behind the left cylinder bank.

Fig 1: Identifying Crankshaft Position Sensor

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 2: Crankshaft Position Sensor Signal Line

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Task

The crankshaft position sensor records the crankshaft position via the teeth of the drive plate (incremental wheel) without any contact and detects the engine speed.

Design

It consists of a plastic housing with an internal inductive coil and a 2-pole plug contact.

The distance between the crankshaft position sensor and the teeth of the drive plate is specified by the installation position (approximately 0.8 mm).

Function

The leading edge (a) of a tooth generates a positive voltage pulse, whereas the trailing edge (b) generates a negative voltage pulse. The distance from the positive to the negative voltage peak equals the length of a tooth.

The gap (c) produced by 2 missing teeth results in no voltage being generated in the crankshaft position sensor. This gap is used for detecting the TDC position of cylinder 1 and 6.