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[W205 Maintenance] Lubricate Moonroof

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Old Apr 15, 2020 | 10:34 AM
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2017 Mercedes C300 Sport 4Matic AMG Pack (W205)
[W205 Maintenance] Lubricate Moonroof

Hi,

In my W205 C300, I have a lubricate moonroof recommended maintenance at 30.000 miles.
I found many posts regarding sunroof lubrication, but they are for older models, like this very informative post here: https://mbworld.org/forums/c-class-w...nt-s-part.html

Does anyone have a link to how to lubricate the moonroof? or what type of lubricant needed?
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Old Apr 15, 2020 | 11:55 AM
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‘15 C300 4M Sport, ‘20 GLC300
Originally Posted by nasroo7
Hi,

In my W205 C300, I have a lubricate moonroof recommended maintenance at 30.000 miles.
I found many posts regarding sunroof lubrication, but they are for older models, like this very informative post here: https://mbworld.org/forums/c-class-w...nt-s-part.html

Does anyone have a link to how to lubricate the moonroof? or what type of lubricant needed?
Check this thread and go to post #17. The documents have all the info you need including MB part number for lube.

https://mbworld.org/forums/c-class-w...ems-fixes.html

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Old Apr 15, 2020 | 11:56 AM
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‘15 C300 4M Sport, ‘20 GLC300
Post 17 thanks to the Great Benzdude

https://mbworld.org/forums/c-class-w...ems-fixes.html
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Old Apr 15, 2020 | 03:16 PM
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That is a great post!!!! benzdude posted all the PDFs! Thanks guys!
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Old Apr 1, 2024 | 10:58 PM
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Benz
hello, did it help to keep your roof functionning ? Thank you.



Originally Posted by nasroo7
Hi,

In my W205 C300, I have a lubricate moonroof recommended maintenance at 30.000 miles.
I found many posts regarding sunroof lubrication, but they are for older models, like this very informative post here: https://mbworld.org/forums/c-class-w...nt-s-part.html

Does anyone have a link to how to lubricate the moonroof? or what type of lubricant needed?
Reply
Old Apr 2, 2024 | 05:55 PM
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Originally Posted by luxuries
hello, did it help to keep your roof functionning ? Thank you.
Well... Even after taking care of the moonroof, at 55k miles that moonroof broke and quit working.

The driver side rail broke, and after visual inspection, I found some of the plastic components of both rails completely crackled!

Called the dealership and they quoted me over $6k because they "must" replace the entire moonroof assembly, and was not covered under warranty no more.

the dealership did my 50k miles maintenance and didn't mention the moonroof having cracks in the rails. Because I'm sure it took some time for these cracks to build up.
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Old May 13, 2025 | 03:28 AM
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I had the same issue with an C63S W205 from 2019!!
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Old May 13, 2025 | 07:18 PM
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Originally Posted by nasroo7
Well... Even after taking care of the moonroof, at 55k miles that moonroof broke and quit working.

The driver side rail broke, and after visual inspection, I found some of the plastic components of both rails completely crackled!

Called the dealership and they quoted me over $6k because they "must" replace the entire moonroof assembly, and was not covered under warranty no more.

the dealership did my 50k miles maintenance and didn't mention the moonroof having cracks in the rails. Because I'm sure it took some time for these cracks to build up.
Was it those annoying plastic clips?
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Old May 13, 2025 | 07:20 PM
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https://mbworld.org/forums/c-class-w...air-place.html
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