Necessary preliminary tasks

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.

Check stored fault message.
Switch off ignition.
Remove FAN COWL .

Unlock connector (1) and remove.

Unlock hose (2) and detach.

Unlock hose (3) further below on intake manifold and detach.

Detach tank vent valve (4) from holder and remove.

Fig 1: Identifying Tank Vent Valve With Connector And Hoses

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock hose (1) on intake manifold and detach.

Fig 2: Identifying Intake Manifold Hose

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Read out fault memory of DME control unit.
Delete fault memory.