Fuel Delivery Unit and Fuel Level Sensor (G) Overview

Fuel Delivery Unit and Fuel Level Sensor (G) Overview






1 Front Suction Jet Pump

• In left fuel tank chamber

• Removing and installing, refer to => [ Suction Jet Pumps ] Suction Jet Pumps

2 Retaining Ring

• Welded to fuel tank

• For the fuel delivery unit and the fuel level sensor (G)

3 Fuel Level Sensor (G)

• Clipped in at retaining ring - 2 -

• Check the resistance values. Refer to => [ Fuel Level Sensor (G), Checking ] Fuel Level Sensor (G), Checking.

• Removing and installing, refer to => [ Fuel Level Sensor (G) ] Fuel Level Sensor (G)

4 Fuel Delivery Unit

• With transfer fuel pump (G6)

• Is inserted in retaining ring - 2 - and engaged by turning 15° clockwise (bayonet connection)

• Checking Transfer Fuel Pump (FP) (G6) electrically, refer to => [ Fuel Pump Electrical, Checking ] Fuel Pump Electrical, Checking

• Removing and installing, refer to => [ Fuel Delivery Unit ] Fuel Delivery Unit

• Fill the fuel tank with at least 5 liters of fuel.

5 Right Locking Flange

• With the fuel pressure regulator and gravity valve

• Installed position => [ Install new locking flange seal dry. ] Fuel Delivery Unit

6 Seal

• Replace

• Install dry

7 Locking Ring

• Tighten to 110 Nm.

• Use wrench (T10202) for removing and installing

8 Electrical Harness Connector

• For transfer fuel pump and fuel level sensor

9 Vent Line

• Only on Rest of World vehicles

10 Fuel Supply Line

• To engine

• To disconnect, press release button on connection piece

• Clipped in on fuel tank

11 Electrical Harness Connector

• For fuel level sensor 2 (G169)

12 Vent Line

• To disconnect, press release button on connection piece

13 Locking Ring

• Tighten to 110 Nm.

• Use wrench (T10202) for removing and installing

14 Seal

• Replace

• Install dry

15 Left Locking Flange

• With gravity valve and fuel filter housing

• Installed position => [ Install new locking flange seal dry. ] Fuel Delivery Unit

• Fuel filter, removing and installing, refer to => [ Fuel Filter Overview ] Fuel Filter Overview

16 Fuel Line

• To the fuel pressure regulator on the right side of the locking flange

• To disconnect, press release button on connection piece

17 Fuel Line

• From the fuel delivery unit

• To disconnect, press release button on connection piece

18 Fuel Level Sensor 2 (G169)

• Clipped in at retaining ring - 19 -

• Check the resistance values. Refer to => [ Fuel Level Sensor 2 (G169), Checking ] Fuel Level Sensor 2 (G169), Checking

• Removing and installing, refer to => [ Fuel Level Sensor 2 (G169) ] Fuel Level Sensor 2 (G169)

19 Retaining Ring

• Welded to fuel tank

• For suction jet pump and fuel level sensor 2

20 Rear Suction Jet Pump

• Removing and installing, refer to => [ Suction Jet Pumps ] Suction Jet Pumps

Locking Flange Cover





- Tighten bolts - 1 through 4 - to 9 Nm.