Tip & How-To about 1996 Mercedes-Benz C-Class
This is for Mercedes C-Class models with a SINGLE windshield wiper (with the piston that makes it 'dance' up-down-up), however if yours has a TWIN wiper system but the primary wiper has a piston to regulate the coverage of the wiper, then it still applies.
YOU WILL FIND THE FOLLOWING FRUSTRATING BECAUSE I COULD NOT INCLUDE THE PICTURES - the cannot fit within the 150KB requirement of Fixya. Thus email me at firstname.lastname@example.org and as long as I exist I should be able to forward the pics.
The original article was for setting the wiper virtically on the windshield, however all of it applies to resetting the wiper if it has got stuck at rest in an incorrect position. If the wiper is sticking then all you need do is use a finger-full of good grease around the back of that piston; at the base of the wiper; and, hey presto! you will never suffer that problem (of a sticking wiper) again. But it's easy to close the stable door .. etc.
The problem is that having stuck so much as to cause the wiper to change position (if indeed that is what has happened?), what do you do then? Well, I have the pictures. Get them and print them out then stick them together, and the text should make sense. In my case on a C180 1995 I took the whole wiper assembly off the car; which although it will take an hour or so (once you have bought yourself a "Haynes" for your model) is certainly possible for someone with moderately basic tools; you MIGHT then need to take the top off the motor within which is the screw and knurled wheel effort (the 'Rotating offset plate') that controls where your wiper starts and stops. I had to do this because the knurled wheel [in attached pic3] had been forced to jump to a slightly different position on the screw ( that comes out of the electric motor.) To take the top off the motor [shown with white arrow in pic3] you need a special type of Allen key (it's actually NOT an 'Allen' key) which you can easily buy from Radio Shack or similar. Then you have to use some logic to work out what happened: I DID and I ain't no big brain. You might be able to do it all without the pics, it's up to you. If the knurled wheel HAS jumped the screw, undo the nut [shown with the yellow arrow in pic5], and if it's not much damaged (mine wasn't) reset it's position, do the whole shebang up again, put it all together and Bob's your uncle. Good luck! Although your system might be a bit different, the principles should be mostly the same.
Posted by Quentin... on
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