Just to update on this
I got round to taking the rear door panel off yesterday, quite easy in itself as I had identified there were 4 screws to find (2 hidden in recesses) from browsing the web.
Once these were out I carefully removed the panel (metal clips in various places which all released easily) to reveal the motor.
Again this was straightforward, 3 nuts to undo and 1 holding it at the base of the wiper arm and it was off the door, about 8 small screws holding on a cover to the rear of the motor unit which once opened was a corroded mess.
I cleaned this up and lubricated with PTF spray, I was'nt hopefull as it seem past the point of no return.
Once re-assembled and refitted, I found I was correct it was still dead.
Today to Midland VW for a full service and they kindly tested the motor for me and confirmed it was dead so no option but to stump up for a new one.
All in £77 supplied and fitted.
From looking at the dead motor it seems there is ample initial grease lubrication when the motor leaves the factory, however the action of the mechanism quickly moves all the grease to one side of the motor housing where it has no effect at all.
As always
Mark
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Volkswagen Passat - 01 1.9 Rear wiper new
Volkswagen Passat - 01 1.9 Rear wiper new