Installing injector

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.

Installation of injector is described separately from removal.

Install injector (1).

Install holding-down element (2).

NOTE: Make sure holding-down element (2) is correctly seated.

IMPORTANT: Tighten bolt (3) hand-tight only so that holding-down element (2) is slack and if necessary injector (1) can still be turned.

Fig 1: Identifying Injector With Holding Down Element And Mounting Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

Connect pressure line (2), tightening nuts (1) handtight only in the process.

IMPORTANT: Connect pressure line (2) without tension only.
To ensure distortion-free installation of the pressure line and to avoid damaging the thread, it must be possible for both nuts to be screwed on easily by hand!
If the nuts cannot be screwed on easily by hand, the injector must if necessary be turned a little.

Fig 2: Identifying Pressure Lines With Mounting Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Turn injector (1) if necessary in direction of arrow until nuts on pressure line can be easily screwed on by hand.

Tighten nut (2) of pressure line hand-tight.

Then tighten down bolt for holding-down element (3).

Tightening torque 13 53 5AZ .

Fig 3: Turning Injector

Courtesy of BMW OF NORTH AMERICA, INC.

Adhere to tightening sequence:

First tighten down pressure line on injector.

Tighten down nut on injector with special tool (1) 13 0 161 and to torque (2). In so doing, grip hexagon head of injector with wrench (3).

Tightening torque 13 53 2AZ .

Fig 4: Tightening Nut On Injector Using Special Tool (13 0 161)

Courtesy of BMW OF NORTH AMERICA, INC.

On cylinders 4 and 8 tighten down pressure line (1) to torque (2) and with crowfoot wrench (3). In so doing, grip hexagon head of injector with wrench.

Tightening torque 13 53 2AZ .

Fig 5: Tightening Pressure Line Using Crowfoot Wrench

Courtesy of BMW OF NORTH AMERICA, INC.

Then tighten down pressure line on rail.

Tighten down pressure line on rail with torque wrench (1) and special tools (2) 00 1 440 , (3) 13 0 162 and (4) 13 0 161.

Tightening torque 13 53 2AZ .

Fig 6: Tightening Down Pressure Line On Rail With Torque Wrench And Special Tool (00 1 440)

Courtesy of BMW OF NORTH AMERICA, INC.