Wipers fault code

[Borys]

On my 2003 s320cdi wipers play up a bit,when coming back to rest position they don't stop at the bottom,they come up a bit (not always).Also some times they will stop half way,need to switch them of and they are working again.
Diagnostic pointed as wipers positioning sensor fault,dealer don't list that item.
Do I need to whole motor assembly?
Cheers

 

[Dieselman]

Surely, this is just the STOP position switch inside the motor gearbox. Strip, clean, grease, rebuild.

 

[Dec]

Nut 80 could be loose or slipped which would explain the “they don't stop at the bottom,they come up a bit” symptom.
Nut 80 attaches the motor to the mechanism. If the wipers were turned on when the blades are frozen to the screen then the parking position will be shifted up a bit.

Dec