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Missing cap? (Pictures included)

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Old Sep 18, 2014 | 07:28 PM
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2011 C300 Sport 4matic
Missing cap? (Pictures included)

Hope everyone is having a terrific day!

So as I was looking around, replacing my lamplight bulbs, I noticed that this part (on the right side when you lift up the hood) looks like it's missing a cap. Possibly the same cap as the one I circled??

Can anyone tell me if it's crucial to have a cap on this? And if so, does anybody know where I could buy it?

I realize I could just go to the dealer, but I don't want to go through the hassle.. (sort of lazy as you may have assumed lol.)


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Old Sep 18, 2014 | 07:30 PM
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2011 C300 Sport 4matic
Here's a further back view to give you an idea where it is located within the hood.




Thanks in advance everyone!!
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Old Sep 18, 2014 | 08:06 PM
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W204 MY10 C200CGI
It's just a missing dust cap for your AC service point. It isn't going to kill your car, but you don't want dust building up and then getting forced in next time you have an AC service
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Old Sep 18, 2014 | 08:08 PM
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2011 C300 Sport 4matic
Originally Posted by AusMB87
It's just a missing dust cap for your AC service point. It isn't going to kill your car, but you don't want dust building up and then getting forced in next time you have an AC service

Thanks for the quick reply! Okay, so I shouldn't be AS concerned as I was then lol.
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Old Sep 18, 2014 | 08:10 PM
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W204 MY10 C200CGI
Nope. And any AC servicing shop will have a replacement. Some monkey probably forgot to put it back on last time it was checked.
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Old Sep 18, 2014 | 08:11 PM
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2011 C300 Sport 4matic
Originally Posted by AusMB87
Nope. And any AC servicing shop will have a replacement. Some monkey probably forgot to put it back on last time it was checked.
Which is funny, because I just had my car serviced like last week and I probably would've noticed that missing cap before the service too.
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Old Sep 18, 2014 | 11:13 PM
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it's pretty common.

Because it isn't an essential component, if a mechanic is under the pump to finish services quick, it's easily forgotten. I must have a collection of twenty of the buggers sitting in my toolbox...as I service cars with missing ones I put them back on...unless I forget
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