Join Date: Feb 2006
Location: Gretton, Northants
My SW rear wiper started getting very slow and I was worried the motor would burnout, so I removed and dismantled it.
The motor and gears were OK but the long shaft through the body ending in the arm mount was very stiff.
It took some shifting to get it out as it has an o-ring seal near the outside end of its tube. The shaft was a bit rusted near to this and when trying to push the shaft back, the o-ring was too dry to slide through. Needs a bit of lubricant (WD40 for eg) easing in from the outside end whilst pushing the shaft in and out to get the ring lubricated, then it should have come out easier. Clean up the shaft and lubricate with a plastic friendly grease and all was OK again.
Whether any of this is relevant to your intermittent fault I don't know. I would advise looking for a loose or broken elec connection.
2002 156 2.4JTD Sportwagon
Remap + Koni FSD's = Loverly