GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

Windshield wiper

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Old 10-12-2020 | 09:42 AM
  #1  
mglsite's Avatar
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From: Covington, La.
GL450
Windshield wiper

My wipers are not working. I checked the fuse and it was good and I can get them to work by working the relay. Checked for codes and found none pertaining to the wipers. What next?
Old 10-12-2020 | 01:10 PM
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Max Blast's Avatar
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Now just one GL450 with EORP.
Do other functions on your wiper stalk work properly? Rear wiper? Dim/bright, blinkers?
Old 10-12-2020 | 02:39 PM
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mglsite's Avatar
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From: Covington, La.
GL450
Fixed, wiggled the wires around on the SAM and slammed the hood and the started to work, it's a miracle.
Thanks
Old 10-12-2020 | 04:46 PM
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expl0rer's Avatar
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From: Yeast Coast, Canada
GL550 X164
It would be interesting to find out why they stopped working. I would check the connections to the SAM to see if there might be water intrusion or corrosion. This problem might be a warning sign that other bigger (expensive) problems might surface as well.

It's great that you were able to fix it with $0 in parts/labour, doing some preliminary investigation now might save you $$$ later.
Old 10-12-2020 | 06:15 PM
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mglsite's Avatar
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From: Covington, La.
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I read somewhere that if the hood is up that they will not work, I'm thinking the hood switch may have been off a little. The SAM was dry as a bone.
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