16 14 010 Removing and installing/replacing fuel pump (US vehicles with N51 engines)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 9 252

IMPORTANT: Ensure adequate ventilation in the place of work!
Ensure absolute cleanliness when working on the open fuel tank.
Contaminants in the fuel tank can impair driving operation or may even result in vehicle breakdown!

Necessary preliminary tasks:

Draw off fuel from fuel tank
Remove rear seat bench . See SEATS - REPAIR (CONVERTIBLE) or SEATS - REPAIR (COUPE) .

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

Fig 1: Identifying Screws And Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Release union nut (2) and lay fuel feed line slightly to one side.

IMPORTANT: Always grip union nut (2) at hexagon (3).
Ensure that sealing faces are clean.
Catch escaping fuel.

Installation:

Tightening torque 16 12 3AZ, see 16 12 FUEL DELIVERY .

Unlock quick-release fastener of vent line (4) and detach.

Fig 2: Identifying Union Nut, Plug Connection And Hexagon

Courtesy of BMW OF NORTH AMERICA, INC.

Lever out remainder of torque breakoff head (1) (if provided) with a screwdriver in direction of arrow.

Release hose clip of clamping ring (2) completely.

NOTE: A flexible extension can be used to release the hose clamp, e.g. special tool 00 9 252.

Press clamping ring (2) part at open end in direction of arrow and remove.

Fig 3: Identifying Clamping Ring And Breakoff Head

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Make sure that service cover is installed in correct position .

Indentation (2) on clamping ring must line up with raised section (1) of tank.

Pin on service cover (3) must line up with indentation on clamping ring.

Hose clip with torque breakoff head (4) must always be replaced.

Tighten hose clip until torque breakoff head (4) breaks off.

Fig 4: Identifying Breakoff Head And Service Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Carefully raise service cover.

Unlock and disconnect vent line and fuel feed line (1).

Unlock retaining lugs (2) on both sides of plug housing (3) and detach plug housing (3) from service cover.

Fig 5: Identifying Retaining Lugs And Plug Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

When installing the service cover, make sure that seal (4) is correctly situated in the tank opening.

Seal (4) must always be replaced .

Remove service cover.

Disconnect plug connections (1) for both fuel level sensors.

Disconnect plug connection (2) for grounding cables.

IMPORTANT: The grounding cable on the filter box must not be released!

Fig 6: Identifying Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect fuel feed line (1).

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

Turn fuel pump in direction of arrow (counterclockwise) and remove.

Installation:

Ensure correct engagement.

Fig 7: Identifying Fuel Feed Line

Courtesy of BMW OF NORTH AMERICA, INC.