Necessary preliminary tasks

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Remove COVER FOR COWL PANEL .
Remove SPRAY NOZZLE on left/right.

Release catches on grommets (1) and remove grommets (1) in outwards direction.

Release holder (2).

Remove washer fluid hose (3) and if necessary cable.

Installation:

Grommets (1) for wiper pivots must not be damaged; if necessary, replace grommets (1).

Fig 1: Identifying Grommets With Holder And Washer Fluid Hose

Courtesy of BMW OF NORTH AMERICA, INC.