13 90 500 Replace the tank vent valve (N20, N26)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Check stored fault message.
Switch off ignition.
Remove ACOUSTIC COVER

Unlock tank ventilation line (1) at T-piece, pull off and unclip from the clamp (2).

Fig 1: Identifying T-Piece Tank Ventilation Line And Clamp

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock connector (1) and remove.

Unlock tank ventilation line (2) and disconnect.

Unlock tank ventilation line (3) on throttle body and disconnect.

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

Fig 2: Detaching Tank Vent Valve From Bracket

Courtesy of BMW OF NORTH AMERICA, INC.

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