Fuel Pump (FP) In Fuel Tank, Removing and Installing

Fuel Pump (FP) in fuel tank, removing and installing

Recommended special tools and equipment







- 3087 special wrench for tank sensor







- 3307 fuel pump wrench (Fuel Pump)
- VAG1332 torque wrench (40 to 200 Nm)

Requirements
- Parking brake must be engaged or else daylight driving lights will be switched on.
- Ignition switched off.

Removing


NOTE:
- Fuel tank may be a maximum of 1/3 full.
- Empty the fuel tank if necessary using VAG5190 fuel siphoning device.


Observe safety precautions.
Observe rules for cleanliness.

- First determine whether a coded radio is installed. In this case, determine the anti-theft coding.
- Switch ignition off and disconnect Battery Ground (GND) strap.
- Fold the rear seatback down.
- Remove cover from Fuel Pump (FP)







- Disconnect 4-pin harness connector as well as supply and return lines from flange (arrows).


WARNING:
- The fuel or fuel lines in fuel system can become very hot (danger of scalding)!
- In addition, the fuel system is under pressure! Before opening the system, place rags around the connection area and release pressure by carefully loosening the connection!
- Wear protective goggles and protective gloves when working on the fuel system!


- Seal off lines so that no dirt will get into fuel system.







- Use 3087 ring nut spanner to remove union nut.
- Pull flange and sealing ring from opening of fuel tank
- Unclip Sender for fuel gauge -G-at baffle housing in fuel tank and remove.







- Turn Fuel Pump (FP) approx. 15 degrees toward left until impact using 3307 fuel pump wrench and remove with flange.


NOTE: When replacing Fuel Pump (FP) unit, empty old Fuel Pump (FP) unit before disposing.


Installing
- Installation of the Fuel Pump (FP) unit is the reverse order of removal.


NOTE:
- Do not bend sender for fuel gauge when installing.
- Insert dry seal of flange or Fuel Pump (FP) into opening of fuel tank.
- Only coat seal with fuel when installing flange or Fuel Pump (FP).
- Make sure fuel lines are securely fastened.
- Do not swap supply and return lines).
- Secure fuel lines with spring type clamps.







- Note installation position of Fuel Pump (FP) flange:Marking on flange -1- must align with marking on fuel tank -2-.
- After installing Fuel Pump (FP) unit flange, check whether supply, return and vent lines are still clipped in at fuel tank.

- Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
- Generate readiness code.