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Spray nozzle problems?

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Old Mar 29, 2022 | 05:36 PM
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Spray nozzle problems?
Seems that all 3 of my windshield washer spray nozzles have lost pressure and only spraying some inches of washer fluid out. Doesn't seem clogged. Anybody have issues with this and solutions? Thanks!
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Old Mar 29, 2022 | 06:21 PM
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Originally Posted by lieu
Seems that all 3 of my windshield washer spray nozzles have lost pressure and only spraying some inches of washer fluid out. Doesn't seem clogged. Anybody have issues with this and solutions? Thanks!
bad pump or clogged nozzle / pipes? use a thin needle to check nozzle ports?

Are they all spraying at the same pressure?
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Old Mar 29, 2022 | 07:16 PM
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Not to say this is your issue, but mine did the same for a time then quit completely. The washer fluid pump went bad and I had it replaced (factory warranty at the time).

As benzdude said, it could also be a clogged line or debris in there.
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Old Mar 29, 2022 | 07:30 PM
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Originally Posted by benzdude
bad pump or clogged nozzle / pipes? use a thin needle to check nozzle ports?

Are they all spraying at the same pressure?
Yes all spraying at same pressure. I used a thin needle but didnt seem like that was the problem.
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Old Mar 29, 2022 | 10:10 PM
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Originally Posted by lieu
Yes all spraying at same pressure. I used a thin needle but didnt seem like that was the problem.
when you do a manual test spray, can you get someone to hear if the pump can be heard?
Try removing the water hose from one of the nozzle (usually the closest one to the tank), and use an air gun (compressor gun) to force air through the hose.
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Old May 15, 2022 | 06:53 PM
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I went to mercedes and they said it was the pump. Unfortunately not covered under my cpo warranty. Seems like a easy job. Anybody have the link for the mercedes washer pump? Or anyone from autozone works? Thanks.
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Old May 16, 2022 | 01:54 PM
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Originally Posted by lieu
I went to mercedes and they said it was the pump. Unfortunately not covered under my cpo warranty. Seems like a easy job. Anybody have the link for the mercedes washer pump?
...
The washer pump and reservoir are located within the left front fender. It requires removing the left front wheel and left front inner fender liner for access.

Originally Posted by lieu
...
Or anyone from autozone works? Thanks.
Unlikely. The words "Mercedes Benz" and "Autozone universal parts" rarely go together. If you are skilled and comfortable working on your car, buy a genuine MB washer pump. They are not expensive, around $30-$40 I think.



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Old May 16, 2022 | 05:02 PM
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whats what i figured, i usually buy from rmeuropean but they dont have the pump. do you have a link for the genuine mb pump? thanks
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Old May 16, 2022 | 06:20 PM
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Originally Posted by lieu
whats what i figured, i usually buy from rmeuropean but they dont have the pump. do you have a link for the genuine mb pump? thanks
I don't, sorry, but I would think Google can find one somewhere.


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Old May 16, 2022 | 09:53 PM
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https://www.mbonlineparts.com/oem-pa...ump-2058660100



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Old Jul 31, 2023 | 03:04 PM
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Are the headlight washers suppose to open when I press the washer button as well?
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Old Oct 3, 2024 | 01:10 PM
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still having the problem, the pump works and can hear it going but no fluid is coming out. any suggestions?
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Old Oct 3, 2024 | 01:18 PM
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Originally Posted by lieu
still having the problem, the pump works and can hear it going but no fluid is coming out. any suggestions?
Check or change the hoses?
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Old Oct 3, 2024 | 01:19 PM
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whats the best way to check and clear out hoses? dont want to take much apart on the car
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Old Oct 3, 2024 | 01:25 PM
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Originally Posted by lieu
whats the best way to check and clear out hoses? dont want to take much apart on the car
I would disconnect the hose from the pump and nozzles and try to push a vinegar water solution through it. Not a simple task. Sorry, I've never had this issue.

Does the hose have a Y connector on it? Maybe that's clogged.
Last edited by benzdude; Oct 3, 2024 at 01:26 PM.
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Old Oct 4, 2024 | 01:27 AM
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Originally Posted by lieu
still having the problem, the pump works and can hear it going but no fluid is coming out. any suggestions?
if you can get your hands on a compressor gun… you need to blow into the rubber hose.. there may be debris clogged in there.
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