Removal & Installation (Z3)
- Ensure wiper motor is in park position. Open hood. Remove wiper arm covers and remove nuts. Remove wiper arms from wiper shafts.
- Remove cowl cover and air intake for A/C-heater system. Remove screws attaching wiper assembly to cowl and move wiper assembly to passenger's side of cowl to disengage from guide. Disconnect wiper motor connector and remove wiper assembly from vehicle.
- Remove nut attaching crank arm to wiper motor and remove crank arm. (Scheme 1) Remove screws attaching wiper motor to wiper assembly.
- To install, connect and run motor. Turn wiper off to place wiper motor crank arm in park position. Install motor with crank in extended position. (Scheme 2) To complete installation, reverse removal procedure. Tighten wiper arm nuts to 21.8 INCH lbs. (13 Nm). Wait 15 minutes and recheck torque of nuts.
Scheme 1
Scheme 2
Removal & Installation (3-Series)
- Remove heater blower motor and bracket. Disconnect wiper motor connectors. Remove crank nut from motor shaft. Remove crank and linkage. Remove mounting nuts and motor.
- To install, reverse removal procedure. Connect and run motor. Turn wiper off to place wiper motor crank arm to park position. Install motor with crank in extended position. (Scheme 3) To complete installation, reverse removal procedure.
Scheme 3
Removal & Installation (5-Series)
Remove rubber strip from firewall and cowl. Remove access panel. Remove crank and wiper linkage from motor. Disconnect electrical connector. Remove wiper motor. To install, connect and run motor. Turn wiper off to place wiper motor crank arm in park position. Install motor with crank in extended position. (Scheme 3) To complete installation, reverse removal procedure.
Removal & Installation (7-Series)
- Remove cowl air grille. Loosen cowl cover screws. Remove rubber seal enough to lift cover. Disconnect hose and tilt cover forward.
- Remove motor cover, and unplug wiring. Remove wiper arms and wiper arm shaft nuts. Remove stop pad screw. Disconnect linkage to right wiper. Loosen 2 screws at center of cowl and disconnect linkage.
- Mark shaft and crank arm for reassembly. Remove motor crank arm, 3 screws and wiper motor. To install, reverse removal procedure. Ensure linkage fits properly and stop pad is turned to support motor.
Remove fuse/relay cover located in left rear corner of engine compartment. Locate and remove wiper relay. To install, reverse removal procedure.
Removal & Installation (5-Series, 7-Series & 8-Series)
Lift rear seat out of holders. Remove general module from power distribution box under left side of rear seat. To install, reverse removal procedure.
- Disconnect negative battery cable. Remove air bag/steering wheel assembly. See AIR BAG RESTRAINT SYSTEM article.
- Remove lower left dashboard trim. Remove screws and steering column lower trim. Remove steering column upper trim. Remove screws, ground wire and wiper switch.
- Detach wire straps, and disconnect wiring for wiper switch. To install, reverse removal procedure. Ensure ground wire is attached to wiper switch.
- Disconnect negative battery cable. Remove air bag/steering wheel assembly. See AIR BAG RESTRAINT SYSTEM article.
- Remove lower left dashboard trim. Remove screws and steering column lower trim. Drive out pin and lift out expander rivet. Remove steering column upper trim.
- Press in retaining hooks on both sides of switch and pull out wiper switch. Disconnect wiper switch wiring. To install, reverse removal procedure.