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Headlight washer question

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Old Nov 12, 2022 | 09:25 PM
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2008 Mercedes S550
Headlight washer question
I filled washer fluid full. Tried using fluid by pressing button and waitong for I think 15 wipes...

Nothing ever sprayed. Not sure if they open.

What's the easiest thing to check.

​​​​​​Fuse, pump etc.

Thanks.
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Old Nov 13, 2022 | 05:43 AM
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S500
a likely issue you have is because Mercedes specify a designed to fail washer pump - it has lower quality seals - and around the 7 to 10 year mark, these weep allowing the washer fluid to leak by and seize the electrical motor - theses pumps cost around $55 for another short life cycle replacement

or you buy one from ebay for $9 and it functions in exactly the same way, but lasts for 20 to 25 years
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Old Nov 13, 2022 | 10:02 AM
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'71 Pinto
See attachments to better understand system and to start checking.


Attached Files
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Old Aug 19, 2024 | 11:40 AM
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2007 S65
Originally Posted by konigstiger
See attachments to better understand system and to start checking.

Can you share where you got these .pdfs? I am starting to wrench more on my car and these service manuals are very useful. Thank you!
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Old Aug 19, 2024 | 03:40 PM
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2006 W221 S500L M273
Mercedes WIS (Workshop Information System).
You cannot buy it legally AFAIK.
But you can get if (for free) if you know how to search for that stuff.
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