If installed: Remove the silencer of the stationary heating

Remove the front section of the front wheel arch cover

NOTE: To provide a better overview: Schematic diagram with partially hidden components.

Courtesy of BMW OF NORTH AMERICA, INC.

Remove the silencer of the stationary heating

Unscrew the nut (3) by 2 to 3 turns.
Detach the silencer (1) from the auxiliary heater.
Loosen screws (2) .
Remove the silencer (1) from the auxiliary heater in the direction of the arrow.

Courtesy of BMW OF NORTH AMERICA, INC.