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Old 01-10-2001, 10:56 PM
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Join Date: Nov 2000
Location: Houston, TX, USA
Posts: 185
Hello Everyone...

Today I am going to change the windshield washer pumps on my car, for the necks on them have aged, cracked, and broken. I noticed that the hose that goes from one of the motors to the windshield nozzles has 2 electrical wires inside of it as well, and they have some sort of electrical connections up at the nozzles on the hood. Down by the pump, it doesnt look like the wires connect to anything, but they have what looks like shrink tubing connecting the 2 wires together. Does anyone know what these wires go to, or what they do and do they need to be connected to something down by the pump?

Thanks everyone....Peter

Peter Balias
1992 400E
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Old 01-10-2001, 11:03 PM
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Location: Vernon, CT
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It sounds like you have heated washer nozzles. Though I don't know why they would need to be heated. Windshield fluid usually contains methonal alcohol which prevents it from freezing. I suppose it would be to keep the ice off of the nozzles themselves.
1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
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Old 01-15-2001, 06:35 PM
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Location: Houston, TX, USA
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i dont think they are heated

i dont think my nozzles are heated, there dosent seem to be any type of heating element in the nozzles themselves. any other suggestions???

Peter Balias
1992 400E
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Old 01-15-2001, 06:56 PM
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Join Date: Jul 2000
Location: Toronto, CANADA
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I would also say they are probably heated. The nozzles in my 1986 420SEL are heated as well, and the setup sounds similar.

Jason Priest
1999 E430
1995 E420 - retired
1986 420SEL - retired
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Old 01-15-2001, 09:51 PM
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Join Date: May 2000
Location: Location: Norcross, GA
Posts: 126
pretty sure those are heating elements. The windshield washer conatiner is heated as well as the rear view mirrors. It would stand to reason that the windshield spray nozzles would have an anti freeze feature.

I am not 100% sure but I have noticed the same on my 400E.

'87 300E
'92 400E
'06 ML350
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