Dead easy,pull the plastic cap off the ead of the wiper and remove the nut nut that holds the wiper on(13mm spanner Ithink)pullthe wiper off,it is on a splined shaft.Remove the large nut and rubber washers.From inside pull off the door panel (it just pops off)remove the two bolts (10mm)spanner and unplug the wiring(the wires can only fit one way)and wiggle the motor out,replacement is a reversal of the job,don't tighten the large nut on the wiper arm to tight as it is only a plastic thread.Straight forward job don't be frightened of it.
Rich, August 2012