Fuel Delivery Unit/Fuel Level Sensor, Removing And Installing: Notes
Special tools and workshop equipment required
- Wrench - Fuel Sending Unit :T10202
- Torque Wrench 1332 40-200Nm :VAG1332
- Trim Removal Wedge :3409
Removing
-- Pay attention to the safety precautions. Refer to SAFETY PRECAUTIONS .
-- Follow the guidelines for clean working conditions. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS ON PARKING/AUXILIARY HEATER AND FUEL SYSTEM .
Electrical components could be damaged when disconnecting the battery.
Follow the steps for disconnecting the battery.
-- Disconnect the ground cable from the battery terminal. Refer to BATTERY, DISCONNECTING AND CONNECTING .
-- The fuel tank may be a maximum of 3 /4 full. This ensures the fuel level is below the fuel delivery unit flange.
-- Drain the fuel tank. Refer to FUEL TANK .
-- Remove the rear bench seat. Refer to BENCH SEAT/SINGLE SEAT, REMOVING AND INSTALLING .
-- Unclip the sealing flange cover -1- at the tabs in direction of -arrows- using the :3409 .
-- Unclip the grommet -1- downward out of the cover -2-.
-- Guide the cover -2- on the wiring harness -3- toward the rear.
-- Unlock and disconnect the connector -1- from the sealing flange.
-- If equipped, disengage the connector -2- for the parking heater Metering Pump -V54- on the sealing flange and move it to the side.
-- Remove the fuel line -1- from the sealing flange. Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS, DISCONNECTING .
The fuel system is under pressure.
Risk of injury from fuel spraying out.
- Wear protective eyewear.
- Wear safety gloves.
- Reduce the pressure: place clean cloths around the connection point and carefully open the connection point.
-- If equipped, remove the fuel line -2- to the Metering Pump -V54- for the parking heater on the sealing flange.
-- Loosen the lower hose clamp to do this.
-- Open the locking ring using the :T10202 .
-- Carefully lift the fuel delivery unit flange.
-- Pull the sealing flange -2- out of the opening in the fuel tank just a little.
-- Remove the seal -1- at the fuel tank opening.
-- Carefully pull the fuel delivery unit with the Fuel Gauge Sensor -G- out through the fuel tank opening.
-- Turn and tilt it as needed.
-- Be careful not to bend the floater arm on the fuel level sensor when removing the fuel delivery unit.
-- Place a cloth underneath to catch the leaking fuel, since the fuel delivery unit is still filled.
Vehicles with Suction Line in the Fuel Tank:
-- Pull the fuel delivery unit -2- as far as possible out of the fuel tank.
-- Release the fuel line -1- in the fuel tank and disconnect it from the suction line -3-. Connector Couplings, Disconnecting. Refer to CONNECTOR COUPLINGS .
Continuation for All Vehicles
If the delivery unit is being replaced, the old delivery unit must be emptied before disposing of it.
Follow all waste disposal regulations.
Check the fuel tank for contamination.