E-Class (W211) 2003-2009

2004 e320 Leaking washer tank and mystery hose

Old Nov 15, 2020 | 02:27 AM
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2004 e320 Leaking washer tank and mystery hose-Come on people help me out here!

Hi Everybody,
I have a 2004 e320 with a leaking washer tank. I thought maybe just the pump needed to be changed but after pouring water into it, i see a large amount of water spilling out the back. However, I have another leak as shown in the photo below. The red arrow points to where water is slowly dripping out (maybe 1 drip per 30 seconds). I cannot identify what this part is. It seems to be tubing with electrical wire running next to it that runs up to the nozzles on car.

Has anyone experienced this issue, do you know what this thing is, is there a part number for it? I have already purchased a new tank and new pump w/.gromets etc.


Any help appreciated, thank you so much!

Last edited by Vice Grip; Nov 15, 2020 at 07:13 AM. Reason: spelling
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Old Nov 15, 2020 | 10:32 AM
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From: L.A., Moscow, NYC, San Diego, Baja
1998 E320 Wagon, 2003 W211 E500, 2003 W211 E500, 1999 W210 E55 AMG
I've had this leak on every W211. Drives me out of my mind.
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Old Nov 15, 2020 | 07:49 PM
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How did you end up fixing them?
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Old Nov 16, 2020 | 04:23 AM
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1998 E320 Wagon, 2003 W211 E500, 2003 W211 E500, 1999 W210 E55 AMG
Originally Posted by Vice Grip
How did you end up fixing them?
Being who I am, I can live with something being this wrong for the rest of my life.
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Old Nov 16, 2020 | 05:02 AM
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Sounds like a good answer to me, fair enough.
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