1351065 Removing and installing/replacing left high pressure pump (N63): Recycling

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2014 BMW Alpina B7L, 2014 BMW Alpina B7, and 2013 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

Fuel escapes when fuel lines are detached.

Catch and dispose of escaping fuel.

Observe country-specific waste disposal regulations.

IMPORTANT: High-pressure pump can be pretensioned by camshaft cams!

Slacken screws (1) of high pressure pump (2) a little. The engine must be rotated when the high pressure pump is pushed out.

Otherwise it will not be possible to install the high-pressure pump!

Fig 1: Identifying High Pressure Pump With Mounting Screws

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Rotate engine at central bolt through 90° in direction of engine rotation.

Fig 2: [Engine Rotation Position At Central Bolt]

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Release screws (1).

Replace screws (1). Screws (1) are coated with sealant.

IMPORTANT: 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 escape when pump is detached; have a cleaning cloth ready.

Installation note:

Provisionally fasten screws (1) and tighten uniformly in 180° increments until final tightening.

Tightening torque 13 51 1AZ .

Fig 3: Identifying High Pressure Pump With Mounting Screws

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Installation note:

Replace sealing ring (1).

Clean contact surfaces.

Fig 4: Identifying High Pressure Pump Sealing Ring

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Assemble engine.

Check fuel system for tightness.

Check function of DME.