* Undo the nut that holds the wiper arm on and remove (outside)
* Unclip the plastic underside of the tailgate and remove completely (Follow this guide
http://www.fleagle.org.uk/a3-rear-washwipe)
* Unclip the electrics
* Unplug the water hose -(I folded and cable tied mine)
* Undo the nuts holding the motor on and remove.
* Plug the hole with a 25mm Grommet fron Halfrauds (they sell them as an Ariel grommet?) Some people use silicone to seal it
* Put the plastic underside trim back on.
Stand back and enjoy the smoothness...
:icon_thumright:
If you want to reach max smoothness....buy a glass grommet from one of the below links:
Venom Motorsport Performance Car Parts - EBC Brakes, Black Diamond Brakes, FK Suspension, Eibach Suspension, Weitec Suspension, Supersport Suspension
http://www.gecleant.de/shop/Grommets/Glas/Glasstopfen-fA-r-Audi-VW-Seat-Skoda/prod_46.html