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#1
10-21-2003, 04:21 PM
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Haunted Windshield Wiper
Great site!! A lot of resources. Keep it up guys!
Did a search but I didn't find any thing close to my wiper roblem. The car in question is a 91 300D. If I park it under the sun for 2-3 hours (93+ °F ) when I start the car and the wiper will start moving on its own at a normal speed for about 10 minutes regardless the switch is at its OFF position. After a while it will repeat again. I tried to turn it on and off and sometime it worked. It will stop sooner if I push that level and apply some windshield fluid(hate to see that wiper moving on yop of a dry windshield). is it a faulty park mechanism or a bad switch? Has anyone got this problem before? Is the mechanism in the wiper transmission case or in the motor? thanks! Johnny
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91 300D 87 300SDL 
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#2
10-21-2003, 05:14 PM
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Your car uses a multi-function relay that controls the w/s wipers.
Next time that happens try removing that relay & see if the motor will park. IF so the relay is the problem, if not then the motor must be at fault. That relay lives in the rear section of the fuse/relay box. LOOK for MB part number 201-821-02-47, should be the 2nd largest computer in that area.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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