Necessary preliminary tasks

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Remove LOWER SECTION OF MICROFILTER HOUSING

Press detent lug (1).

Detach unlocked plug housing (2) in direction of arrow.

Detach hose (3) from spray nozzle.

Fig 1: Pressing Detent Lug

Courtesy of BMW OF NORTH AMERICA, INC.

Release spray nozzle (1) in direction of arrow from cowl panel cover and remove.

Installation:

Make sure spray nozzle (1) is correctly seated.

Fig 2: Releasing Spray Nozzle From Cowl Panel Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Following parts of spray nozzle (4) must not be damaged or missing:

1 Plug connection
2 Hose connection
3 Detent lug, bottom
5 Detent lug, top

Fig 3: Identifying Parts Of Spray Nozzle
Courtesy of BMW OF NORTH AMERICA, INC.