Fuel Supply Sensor 3 -G237-, Removing and Installing

Fuel Supply Sensor 3 -G237-, Removing And Installing

(AWD Models)

Special tools, testers and auxiliary items required
- Ring nut wrench 3218
- Torque wrench V.A.G 1332

NOTE:
- The fuel tank must not be more than 3/4 full.
- Empty fuel tank if necessary.
- Read safety precautions and rules of cleanliness before beginning work.

Removing
- Check whether a coded radio is installed. If necessary, obtain radio anti-theft coding.
- Switch off ignition and all electrical consumers.
- Disconnect battery Ground (GND) strap, See Electrical Equipment, - Repair Group 27.
- Open fuel filler flap briefly and then close again.
- Remove luggage compartment floor cover.
- Remove Fuel Supply Sensor 3 -G237.







- Disengage 2-pin connector - arrow - carefully and remove.







- Use ring nut spanner 3218 to remove union nut.
- Remove gasket.







- Remove Fuel Supply Sensor 3 -G237. by turning it counter-clockwise about its axis - arrow -.

Installing
Installation is performed in reverse order of removal. Note the following:







- Insert sensor -2- in fuel tank as depicted in illustration.
- Floater -1- points toward front left.

NOTE:
- Arrow - points in direction of travel.
- Fuel tank is depicted as cut-out section.







- When sliding in, turn sensor clockwise about its own axis - arrow -.

NOTE: Do not bend floater arm of sensor when installing.

- Slide new seal for sensor over locking flange.
- Insert new seal for flange, dry, into opening of fuel tank and coat only inner side (equipment flange) with fuel.







- Check installation position of Fuel Supply Sensor 3 -G237.
- Marking -2- on sensor must align with marking -1- on fuel tank.







- Tighten union nut using ring nut spanner 3218.
- Tightening torque: 60 Nm
- Connect electrical connector.
- Check Diagnostic Trouble Code (DTC) memory of all control modules, repair all stored malfunctions, and erase DTC memory Vehicle Diagnosis, Testing and Information System VAS 5051; Guided Fault Finding; Vehicle System Test, or Vehicle Diagnosis and Service Information System VAS 5052; On Board Diagnostic (OBD).