W108 Wipers Don't Park - Mercedes-Benz Forum

 
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post #1 of 5 (permalink) Old 01-24-2008, 03:07 PM Thread Starter
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W108 Wipers Don't Park

When turning off the windshield wipers on my 1973 280SEL 4.5, they stop where ever they happen to be, not parking at the base of the windshield.

Thoughts?
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post #2 of 5 (permalink) Old 02-04-2008, 11:09 PM
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First of all check the wiring. There should be 3 wires (assuming it is a singlr speed motor). One is permanent earth. One is life when wiper switched on with ignition. These seem to be OK since your wiper works.
The third is permanent life when ignition on. This connects to the return to park mechanism inside the motor casing. If there is power, then you have to open up the motor. There should be a small plastic rod that makes 2 points come in contact for a short duration to activate the parking mechanism when you switch of the wiper.
The rod could be worn or broken.
You may have problem finding a replacement rod. After a long futile search, I used the plastic extension tube that comes with WD40. Cut two office pins to length so that they will not touch each other inside the but provide enough stiffness, the parking mechanism in my 1962 W120 (ponton) works fine.
Good luck.
Shan.
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post #3 of 5 (permalink) Old 02-05-2008, 04:50 AM Thread Starter
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Thanks Shan for your detailed reply. It turned out to fortunately be something far simpler. The driver's coco mat was riding up onto the windshield washer foot pump!
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post #4 of 5 (permalink) Old 02-11-2011, 05:58 AM
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How to open wiper motor

Quote:
Originally Posted by Shan View Post
First of all check the wiring. There should be 3 wires (assuming it is a singlr speed motor). One is permanent earth. One is life when wiper switched on with ignition. These seem to be OK since your wiper works.
The third is permanent life when ignition on. This connects to the return to park mechanism inside the motor casing. If there is power, then you have to open up the motor. There should be a small plastic rod that makes 2 points come in contact for a short duration to activate the parking mechanism when you switch of the wiper.
The rod could be worn or broken.
You may have problem finding a replacement rod. After a long futile search, I used the plastic extension tube that comes with WD40. Cut two office pins to length so that they will not touch each other inside the but provide enough stiffness, the parking mechanism in my 1962 W120 (ponton) works fine.
Good luck.

Shan.
Shan,

I just read your post and have the same problem: wipers don't park when switching them off. I am an absolute beginner when it comes to these things, but your description is clear enough for me to give it a try. I had a go at it this evening and I managed to locate the wiper motor, however I have no clue how to open it to resolve the issue.

Is there anybody who can help?

Marc.
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post #5 of 5 (permalink) Old 02-12-2011, 09:43 PM
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Wipers do park

Today, my wife figured out that if you turn off the wipers when they are on their way down, they do park at the base.

Thought I would share that, before people go on a hunt to open the wiper motor.
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