Installing wiper linkage

→ Switch off electric power to drive motor.

→ Make sure it does not switch on again.

→ Check that there is no electric charge.

1. Installation is performed in reverse order to removal.
2. Tighten fastening screws for the wiper motor. Tightening torque 12 Nm (9 ft. lb.) +/-1 Nm (+/-0.5 ft. lb.) 
3. Tighten fastening screws on the wiper linkage in the sequence -1, 2, 3-  . Tightening torque 8 Nm (6 ft. lb.) 

Fig 1: Wiper Linkage Fastening Screws Tightening Sequence

Courtesy of PORSCHE CARS NORTH AMERICA, INC.