Fuel Level Sensor: Description and Operation

GF47.10-P-2010CY Component Description Of The Fuel Level Sensor
- MODEL 204.0 with ENGINE 272.911 up to Model Year 8
- MODEL 204.0 /2 with ENGINE 272.921 up to Model Year 8
- MODEL 204.0 /2 with ENGINE 272.947 up to Model Year 8
- MODEL 204.0 with ENGINE 272.948 up to Model Year 8
- MODEL 204.0 /2 with ENGINE 272.961 up to Model Year 8
- MODEL 204.0 with ENGINE 272.971 up to Model Year 8





Location
B4/1 Left fuel level indicator sensor
B4/2 Right fuel level indicator sensor

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

Design
The fuel level sensor consists of:
- Lever
- Float
- Double potentiometer (two sliding contacts)

Both sliding contacts of the double potentiometer are switched in parallel.

Function
The float changes the position of the lever (with the double potentiometer) in line with the fuel level. This changes the resistance value of the double potentiometer and thereby influences the output voltage, which is a measure for the fuel level.

Voltage signals from both fuel level sensors are transmitted separately to the rear SAM control unit with fuse and relay module (N10/2) which processes the signals accordingly and transmits them to the instrument cluster (A1) via the interior CAN (CAN B).