Pressure measurement

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.

Prepare BMW diagnosis system on excess pressure diagnosis unit.

Screw in pressure sensor.
Overpressure connection (Blue).
Connect stimuli cables (3) to positive and negative.
Connect 12V battery cables (4) to vehicle battery positive and negative.

Fig 1: Measuring Pressure
Courtesy of BMW OF NORTH AMERICA, INC.

Secure seal plug (1) with union nut (2) in intake port and seal.

NOTE: Twin-Turbo: both intake ports must be sealed.

Fig 2: Identifying Seal Plug And Union Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Insert Blue pneumatic hose (4) in pneumatic coupling (2) of sealing plug (1).

Seal plug (3) has no pneumatic coupling.

Fig 3: Inserting Blue Pneumatic Hose In Pneumatic Coupling Of Sealing Plug

Courtesy of BMW OF NORTH AMERICA, INC.