Checking Fuel Level Sensor

NOTE: Check signal between Fuel level sensor and Fuel Gauge.

Required special tools, testing equipment and auxiliary equipment
- Fluke 83 Multimeter
- VW 1594 Adaptor kit


- Remove connector flange cover under luggage compartment trim.





- Unlatch and disconnect 4-pin harness connector -1-.





- Measure resistance at terminals -2- and -3- on cover flange:





Actual fuel level between "Tank full" and "Tank empty"; must cause a resistance value that falls between the two specified values.

If 0 ohms or Infinity ohms is measured
- There is an open or short circuit in the tank wiring.

NOTE: To check the resistance values for "Tank full" or "Tank empty" remove the Fuel level sensor and swing the sensor float to the top or bottom stop. Service and Repair