How do I get passenger windscreen wiper working?

Came back to my car yesterday with 6" of snow on it scraped it and the drivers side wiper works but not the passenger? Mercedes C180 2005. Any help or advice welcomed. Thanks
Jon, December 2010


done
may be fixing nut loose, there may be a cover over nut on wiper arm,remove it and see if nut is tight.[ensure wipers are in parked position before tightening].

k, December 2010
linkage may have popped off try and get to the wiper linkage for a look

cdc, December 2010
link Click here to see other fixes for Mercedes C180.