Component description of fuel level sensor - GF47.10-P-2010BK

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MODEL 219 with ENGINE 113.967

MODEL 164.1 with ENGINE 113.964

MODEL 251 with ENGINE 113.971

Shows model 219

Fig 1: Identifying Fuel Level Sensor Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Location

One fuel level sensor is mounted in each fuel tank chamber.

Task

Determines the fuel level for the following functions:

Misfiring detection
Leakage check of regeneration system
Fuel level display.

Function

Each fuel tank chamber has one fuel level sensor (float-and-lever sensor with two wiper contacts). Both the voltage signals (resistance values) are transmitted separately to the rear SAM control unit, which processes the signals accordingly and transmits them to the instrument cluster over the CAN databus.

Design

Each fuel level sensor consists of:

Lever
Float
2 potentiometers (sliding contacts).