There are three electrical contact arms inside the gearbox of my 12v Bosch wiper motor. These ride on the large drive cog and provice contact for the park position of the motor.

When I repack the gears etc with grease, how do you stop all the grease from covering the gear and all over the contact points.

All of the Samba articles I have seen, people fully fill up the gearbox with fresh grease, so keeping the contact points clean is nigh on possible.

Or doesn't it matter if they are greasy??