The wipers will have a wiper motor control unit built in to the motor, which has an APP (alternating park position) feature that slightly elevates the wipers arm position every second time the wipers are switched off to keep the wiper blades efficient. When the motor crank is not connected, it is necessary to reset it by turning off the APP facility, which is not accessible to any home-based mechanic, so it is very important to mark up the crank with reference to the spindle of the motor before detaching it. Reactivation can be automatically reactivated after 100 wiper motions, which is also applicable to new motors. Start by taking out the wiper arms and unconnection of the battery negative lead. Then unscrew the rubber sealing strip on the top of the bulkhead, unclip the washer jets on the windscreen cowling, unconnect the washer pipe and wiring connector then carefully remove the plastic windscreen cowling off the windscreen seal, without using a screwdriver, as this will crack the windscreen. Unscrew the mounting bolts, unplug the wiring plug of the wiper motor and maneuver the windscreen wiper motor and linkage out of the scuttle. When needed, remove recover washers and spacers of the motor mounting rubbers, make sure they are free of damage and replace when needed. To decouple the motor and the linkage, make alignment marks between the motor spindle and the linkage, unscrew the nut holding the linkage crank to the motor spindle, unscrew the three bolts holding the motor to the mounting plate and remove the motor. To re-fit, reversing the dis-fitting procedure is necessary, and before placing the washers and spacers it is important to ensure that the marks left by the removal process are aligned, the wiper motor linkage properly mounted with the rubber grommet in the bulkhead, the windscreen cowling mounting slots must be lubricated with silicone based spray lubricant and the wiper arms must be fitted carefully.