13 51 065 Removing and installing/replacing left high pressure pump (N63)

WARNING: This page does not describe the selected car, but rather 23 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750i, and 2015 BMW 750Li xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

WARNING: Observe warning on cylinder head cover.
Disconnect NEGATIVE BATTERY TERMINAL (risk of fire due to short circuit on removal).
Electric fuel pump starts up automatically when door is opened!
Carry out installation work on fuel system only with coolant temperature below 40 °C.

IMPORTANT: Wear full face guard and protective gloves.

Fuel can emerge spontaneously at high speed when the high pressure line is released!

IMPORTANT: Adhere to conditions of absolute cleanliness when working on the high-pressure fuel system.
Introduced contaminants can cause malfunctions in the system!

Do not allow any dirt particles or foreign bodies to get into the system.
Remove all traces of dirt before removing lines or separate components.
Use only fluff-free cloths.
Seal all fuel system openings with protective caps or plugs.

IMPORTANT: Ignition coils must not be contaminated by fuel.
The resistance of the silicone material is reduced significantly by contact with fuel, which may cause the ignition coil to fail!

Cover ignition coil with suitable means.

Necessary preliminary tasks:

Remove INTAKE SILENCER HOUSING .
Remove FAN COWL .

Recycling

Fuel escapes when fuel lines are detached.

Catch and dispose of escaping fuel.

Observe country-specific waste disposal regulations.

Release clamp (1).

Disconnect charge air line (2) to exhaust turbocharger.

Fig 1: Identifying Charge Air Line And Clamp

Courtesy of BMW OF NORTH AMERICA, INC.

Pull off hose (1) from clean air pipe (3).

Release screw (2).

Tightening torque 13 71 1AZ .

Pull off clean air pipe in direction of travel from exhaust turbocharger. Check seal on clean air pipe and renew if necessary.

Fig 2: Identifying Clean-Air Pipe, Hoses And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock plug catch (1) on ignition coil (2) and unplug connector.

Slowly pull out the ignition coil (2) in an upwards direction with no jerky actions.

NOTE: There is a possibility that the silicone tube will tear and therefore be destroyed. This procedure is applicable to all ignition coils.

Fig 3: Pulling Out Ignition Coil

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Position the ignition coil (1) and gently push it to the limit position, if necessary by twisting it back and forth slightly. Then check anti-twist lock.

The rubber cap must completely surround the sealing collar of the cylinder head cover.

NOTE: If rubber parts are squashed, the ignition coil can slip out again during engine operation.

Fig 4: Identifying Ignition Coil

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Push connector (1) with connector catch (2) open onto ignition coil. Carefully close connector catch (2) in direction of arrow.

The connector catch must snap into place without great effort.

Fig 5: Pushing Connector With Connector Catch

Courtesy of BMW OF NORTH AMERICA, INC.

The connector must be positioned on the counter piece with hardly any gaps when the locking lever is being closed. In the process, the cheeks of the lever are positioned inside the counter piece.

NOTE: The locking lever can become deformed if it is not installed correctly. This means that there is no longer a safety lock on the plug connection. As a result, the connector can slip out during engine operation (loose contact, misfiring).

Release pressure line at the injectors (1).

Fig 6: Identifying Injectors

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Tighten pressure line onto the injector using torque wrench (2) and special tool (1) 13 0 161 (from the set of special tools 13 0 160 ).

In so doing, grip hexagon head of injector with spanner (3).

Tightening torque: 13 53 3AZ

Fig 7: Tightening High-Pressure Fuel Line Onto Injector Using Torque Wrench And Special Tool (13 0 161)

Courtesy of BMW OF NORTH AMERICA, INC.

Release the union nuts of the fuel delivery line (1) and pressure line (2) at the high pressure pump (3).

Fig 8: Identifying High Pressure Pump, Fuel Delivery And Pressure Line

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Tighten fuel delivery line (1) and pressure line (2) hand-tight at high pressure pump.

Then tighten pressure line onto high pressure pump using torque wrench (2) and special tool (3) 00 1 440 .

Tightening torque: 13 53 3AZ

Fig 9: Tightening High-Pressure Line On High-Pressure Pump Using Torque Wrench And Special Tool (00 1 440)

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect fuel delivery line. Close fuel lines using special tool (1) 13 5 161 and (2) 13 5 162 (from set of special tools 13 5 160 ).

Catch and dispose of escaping fuel.

Fig 10: Sealing Off Fuel Lines Using Special Tools (13 5 160 And 13 5 162)

Courtesy of BMW OF NORTH AMERICA, INC.

Pull off connector (2) with holder (1) in an upwards direction.

Fig 11: Identifying High Pressure Pump Connector And Holder

Courtesy of BMW OF NORTH AMERICA, INC.

Pull off connector (1) from high pressure pump (2).

Fig 12: Identifying High Pressure Pump And Connector

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: High-pressure pump can be pretensioned by camshaft cams!
Slightly slacken screws (1) of high pressure pump (2). If the high pressure pump is forced out, the engine will have to be turned to bring the camshafts to a different position.

Otherwise it will not be possible to install the high-pressure pump! Release screws (1).

Fig 13: Identifying High Pressure Pump And Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Replace screws. Screws are coated with a screw locking agent.

The pump plunger can fall out when the high-pressure pump (2) is pulled out! Detach high-pressure pump (2) and remove.

Engine oil can emerge when pulling off the pump; have cloths ready.

Installation note:

Provisionally fasten screws (1) and tighten uniformly in 90° increments until final torque. Tightening torque: 13 51 1AZ

Place depth gauge (1) flat on fuel pump flange (see arrow) (shown on N43 engine).

Fig 14: Placing Depth Gauge Flat On Fuel Pump Flange

Courtesy of BMW OF NORTH AMERICA, INC.

Turn engine at central bolt in direction of engine rotation until the depth gauge shows that the camshaft has reached the BDC position.

Fig 15: Locating Engine Rotation Position At Central Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Replace sealing ring (1).

Clean contact surfaces.

Fig 16: Identifying High Pressure Pump Sealing Ring

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check fuel system for tightness.

Check function of DME.