Necessary preliminary work

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.

Remove left INJECTION PIPE .
Remove THROTTLE VALVE
Release screws on intake plenum from above without fail before lowering front axle.
Secure ENGINE in installation position.
Lower front axle, releasing screws on engine mount first. See LOWERING/RAISING FRONT AXLE SUPPORT (UNIVERSAL LIFTER) .
Release power steering pump, if installed, and set aside. See POWER STEERING PUMP FOR HYDRAULIC STEERING GEAR WITH DYNAMIC DRIVE (N63)or POWER STEERING PUMP FOR POWER STEERING GEAR WITH ACTIVE FRONT STEERING (N63) .
Remove UNIVERSAL JOINT with corrugated tubing.

Detach engine ventilation hose (1).

Disconnect connector.

Unscrew nuts (2).

Tightening torque: 11 61 1 AZ .

Fig 1: Identifying Engine Ventilation Hose And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Release THROTTLE VALVE (1).

Release holder screw (2) on intake plenum.

Tightening torque: 11 61 2AZ .

Feed out intake plenum towards rear.

Installation note:

Replace all profile seals.

Fig 2: Identifying Throttle Valve And Holder Screw On Intake Plenum

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine and vehicle and

Check air intake system for leaks.