If the wing mirror motor breaks in your Porsche then unfortunately the dealer is only able to supply a complete mirror unit rather than replacing the motor itself. However the electric mirror motor is a standard part shared with other manufacturers so can be replaced separately.
The tools you will need are:
- Small flathead screwdriver
- Pz1 Philips crosshead screwdriver
- 8mm socket
- Soldering iron
- Electrical tape
- Replacement mirror motor
Start by removing the mirror glass to give access to the motor. Video below explains how to remove the mirror glass.
Remove the backing plate by undoing the three 8mm bolts so mirror motor unit can be removed from the car. Unplug the mirror wires from car and place motor unit on a flat surface.
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| Guide to Replacing electric mirror motor Porsche 944 |
Remove old mirror motor by undoing the 3 Phillips screws. Lift motor out and check new motor matches the fittings and size. Also check that the mirror glass can be secured onto the motor and that the 4 locking pins line up.
Using the soldering iron remove the 4 wires from the motor making a note of the colour that is attached to each terminal. The new motor may only have 3 terminals so one wire on the centre terminals will be surplus and need to be taped up.
Again using soldering iron attach the wires to the new motor in the order noted from the old motor.
The sleeves for the 3 Phillips screws on the new motor may be too long so these can be removed from the old motor and replaced by using screwdriver to push them out. You may also need to slightly adjust the back cap of the motor as the wires may not exit in the same location. I found I needed to reuse the old cap to fit the sleeves as they wouldn't fit the new rear cap.
Replace the rubber cover over the rear of the motor and refit the motor into the housing using the 3 Philips screws ensuring that they line up flush so the motor doesn't move against the housing.
Once the motor is secured you can refit the housing to the car and reconnect the plug supplying power to the unit. Before refitting the mirror glass I tested the motor to make sure it was moving in each direction so I could resolve any issues before final fixing.
The total cost for the job was £9.99 for the mirror motor from eBay which was a massive saving on the £190 I'd been quoted for the mirror unit from Porsche or the cost of a mirror from a Porsche 911/996 at £50.
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