Over Engineering at its best...
Thread Starter
MBWorld Fanatic!
Joined: Dec 2006
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From: Bellevue, NE
1995 E320 SE, 162,000 Miles (Sold) 2007 CLK350 Cabriolet 2014 ML550
Over Engineering at its best...
What is the purpose of the two wires imbedded inside the hose that goes from the windshield washer pump to the nozzles in the hood? I thought I would cut this hose and reconnect it to the washer pump and improve the seal but, no! There is a pair of wires INSIDE the wall of the tubing that appears to be crimped together at the connection to the washer pump. Crazy! I just can't see what purpose they could serve. They are not connected to anything at the end I can see.
Super Member
Joined: Jul 2005
Posts: 717
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From: Manassas, VA, USA
2011 VW cc, 2004 ML350
The fluid is heated by a coil of engine coolant in the washer fluid tank. The wires are most likely for the nozzle heaters, which keep the nozzles themselves from freezing up, which I believe are electric. Mine all seem to work perfectly, so I've never had a reason to disassemble the system at that end. Only thing I've done to the washer system is replace the tank and pump grommets.
MBWorld Fanatic!
Joined: Apr 2006
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From: Houston, Texas
Dora the Explorer
no, your defrost/heater will be warming it from inside the car and your wiper will wipe it off as soon as it hits the glass anyway.
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MBWorld Fanatic!
Joined: Jan 2004
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From: Seattle WA
99 E320
it'll freeze upon windshield contact, yes......if you're frugle enough to put water
into the reservoir. most people will put some cleaner/anti-freeze solution....
which simply has a little alcohol mixed in.
into the reservoir. most people will put some cleaner/anti-freeze solution....
which simply has a little alcohol mixed in.
Thread Starter
MBWorld Fanatic!
Joined: Dec 2006
Posts: 1,042
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From: Bellevue, NE
1995 E320 SE, 162,000 Miles (Sold) 2007 CLK350 Cabriolet 2014 ML550
Wow! Brilliant. I know the tank is heated by the coolant coil immersed in it, but I didn't think they would heat the lines, too. Like I said, over-engineering, but that's what I love about this car!
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Joined: Jun 2005
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From: Socialist West Coast
95 E320, 19 Ram 1500 Hemi, 21 GLS 580(wife)
Eh, I haven't tried the de-icer in the fluid, but even with my engine warm and the defrost button on, If I shoot my windshieldwasher on the Hwy and it is less than freezing... ie 15 degrees not including 80mph for wind, it freezes right on contact, no heating will help there. It is a killer system though.
