The monowiper in my 300D 2.5 turbo, 124, the rotor function woks ok, but the sliding movement does not work.
Any idea is welcome, thank you.

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Juan

have you lubed the shaft?

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'05 Ford Escape 100,000 miles
'87 560SL 92000 miles
'89 300TE 199,000 miles
'02 Audi TT 100,000 miles
'00 Ford Excursion V-10 121000 miles
'92 Mercury Capri 100000 miles
'02 BMW 325XI 60000 miles
'92 230CE 160000
'87 BMW 535SI 160,000 miles
'93 Rinker Captiva 209
5 Kids
2 Dogs
1 Wife

Thank you, I will try.

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Juan

If you do a search I think you will find a lot of information on this issue. A lot of people have this problem.

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra

Lubrication may have helped, but it's too late now.

Thank you very much to every body, the wiper will need mayor repair

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Juan

What has to be done to it? New motor?

According to his post it's a problem that the mayor can fix. It's a little known fact that the mayor of Puerto Rico is a certified master Mercedes-Benz technician.

All kidding aside, I believe the plastic gear in the wiper mechanism gets stripped if the wiper isn't lubricated. Fortunately there are now aftermarket suppliers that offer only the plastic gear. If you go through MB you can only purchase the entire wiper mechanism, which is not cheap.