Since I've had my Fiat PVC (6yrs), I've always suffered with a build up of water under the o/s wiper arm. Fiat fitted a drain tube on the n/s - ok for LHD! When I mentioned it to the Fiat Dealer he said they were aware of the problem, but Fiat had no solution So I resolved it myself. I was concerned of either the water leaking into the cab via the spindle, or the wiper spindle seizing up. Photo1 shows the Fiat n/s drain hole. Photo2 shows a typical build up after a rain storm. Photo3 shows my modification, Photo4 shows the outlet tube just in front of the front wheel. It works a treat. So simple.