I'm new to this type of forum so hopefully in the right section. For the last few months my rear wiper seems to work when it wants too. Stalk switch confirmed as OK. Switch on and nothing happens and then maybe after some minutes a few window sweeps then nothing. can be days before it works again. Told by my Audi service specialist that problem may be in the wirng loom in the headlining but very expensive to check. Honest John says lots of problems with rear wiper motor on VAG models particularly Skodas. Anyone had simnilar problems and what is possible cause? If not working consistently then MOT failure. Welcome any thoughts.