PeachParts Mercedes-Benz Forum - View Single Post - 1992 190E 2.6 mono wiper has hard time keeping up when encountering moderate rain

tvpierce · #9 12-26-2005, 03:18 PM

First thing I'd do: check your fuse for the wiper. I thought my mechanism was starting to bind up because the wiper was going so slowly. Eventually it stopped working all together, so I assumed the fuse had blown. When I checked the fuse, it was fine (but I replaced it anyway.) The wiper instantly came back to life, operated faster than ever, and has worked flawlessly ever since (two years ago). If your fuse has a bad contact, then it will slow the speed of the monowiper. These fuses are notorious for failing in odd ways. Many people replace all of them with updated fuses as a matter of preventive maintenance.

Also, I second Haasman's suggestion for inspecting/lubing the mechanism. If it's working properly, the monoblade should do a fine job at cleaning your windshield.

Jeff Pierce