Windshield wiper arm with firmly seated sleeve (1):

Return windshield wiper system to rest position. Push wiper arm (2) with firmly seated sleeve (1) onto shaft and tighten down.

Observe tightening torque. Refer to GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUE .

Check setting of wiper arm (2). To correct setting, replace sleeve (1).

Fig 1: Identifying Windshield Wiper Arm With Seated Sleeve

Courtesy of BMW OF NORTH AMERICA, INC.