How do u adjust the wiper linkages on your vw polo?
open bonnet back towards windscreen you should see a closed off section just unnder the windscreen see link http://www.google.co.uk/imgres?imgurl=ht… this is a picture of a old polo the details will depend on how new /old your car is but the idea should be the same the wiper motor and linkage is all in one unit mounted under plastic cover .