13 90 500 Replacing tank venting valve (N20)

Necessary preliminary work:

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

Fig 1: Identifying 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.
Clear diagnostic fault entries from fault memory.