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Home >> BMW >> 2011 >> 335d >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel Supply System - Repair >> 1612 Fuel delivery, sensor for display >> 1612000 Removing and installing or replacing fuel gauge sensor (diesel, right)

1612000 Removing and installing or replacing fuel gauge sensor (diesel, right)

Special tools required 

Recycling 

Fuel escapes when fuel lines are detached.

Have a suitable collecting container ready.

Catch and dispose of escaping fuel.

Observe country-specific waste-disposal regulations.

IMPORTANT: Ensure adequate ventilation in the place of work!
Avoid skin contact (wear gloves)!
Ensure absolute cleanliness when working on the open fuel tank.
Before starting the engine for the first time:
  • Fill fuel tank with at least 5 liters of fuel.

Necessary preliminary tasks 

Release screws (1) and remove cover (2) from right side of fuel tank.

Fig 1: Identifying Fuel Tank Cover And Release Screws
G04725754Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

If necessary, remove fuel line for independent heating.

Fig 2: Identifying Fuel Tank Plug Connection
G06853486Courtesy of BMW OF NORTH AMERICA, INC.

Release screw cap with special tool 16 1 020 and remove service cap.

Installation: 

Procedure for tightening screw cap, see next work step.

Fig 3: Releasing Screw Cap With Special Tool (16 1 020)
G04725775Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Fit screw cap without using a tool and tighten hand-tight.
Then tighten screw cap with special tool 16 1 020 until notch (1) points to marking (2).
NOTE: Illustration shows the tank removed.
Fig 4: Identifying Notch And Marking On Screw Cap
G04725799Courtesy of BMW OF NORTH AMERICA, INC.

Pull out service cover (1).

Unlock and disconnect quick-release fastener (3) of fuel feed line.

Installation: 

Clean sealing faces and install new rubber seal (2).

Locating rods (4) must fit correctly in the hole (5) of the delivery unit.

Make sure that the lever sensor moves freely before fitting the service cap (1).

Fig 5: Identifying Service Cover, Quick Release Fastener, Rubber Seal, Locating Rods And Deliver Unit Hole
G06853509Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Service cap can only be installed in one position.

When installing, make sure lug (1) of service cap engages in corresponding opening (2) on fuel tank.

Fig 6: Identifying Lug Of Service Cap And Opening On Fuel Tank
G04725777Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect line (1) towards top

Unlock quick-release fastener (3) and detach fuel return line (2).

IMPORTANT: Do not use any tools to release the fuel feed line.

Draw off remaining fuel from surge chamber.

Carefully lift fuel pump with fuel level sensor (4) out of fuel tank.

Fig 7: Identifying Quick Release Lever, Return Line And Fuel Level Sensor
G06853511Courtesy of BMW OF NORTH AMERICA, INC.

Remove fuel level sensor in direction of arrow.

Installation: 

Fuel level sensor must snap audibly into place!

Fig 8: Removing Fuel Level Sensor
G06853512Courtesy of BMW OF NORTH AMERICA, INC.

Detach line from retaining fixtures.

Unlock plug connection (1) and detach from service cap.

IMPORTANT: Risk of damage:
Carefully feed cable out of cable guide.
Do not kink cable.
Fig 9: Identifying Plug Connection
G06853513Courtesy of BMW OF NORTH AMERICA, INC.