Four engine air filters??
Thread Starter
Member
Joined: Jan 2013
Posts: 228
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From: Houston, TX
2013 C63 AMG
Four engine air filters??
So I changed my engine air filters yesterday with 2 MANN filters and I noticed there are what appear to be secondary air filters (white accordion style and seemed permanent) that the new filters basically touch. I assumed these are normal until I watched a video of air filter change for a c class and there were no secondary filters just empty plastic behind the filters. Can anyone verify that they have the same setup and if so, do we never have to change them? My car is a 2009 c350 BTW.
Super Member
Joined: Jan 2008
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From: Illinois
'08 C300 4Matic Sport, '02 530i
Mann catalog only shows one type of engine air filter for your car -C 3698/3-2. Your car requires two of these.
Not sure what other filters you are noticing. Maybe take a picture and post it here.
The other filter is the cabin HVAC filter, but that one sits under the glove box inside the car, if I'm not mistaken.
Not sure what other filters you are noticing. Maybe take a picture and post it here.
The other filter is the cabin HVAC filter, but that one sits under the glove box inside the car, if I'm not mistaken.
Thread Starter
Member
Joined: Jan 2013
Posts: 228
Likes: 3
From: Houston, TX
2013 C63 AMG
Here are images that show what in referring to. They appear to be oem and there also appears to be no way to change them. I'm guessing they are permanent and the fact that they come after the air filter keeps them clean. Just seems like something that would eventually need to be changed.
Mann catalog only shows one type of engine air filter for your car -C 3698/3-2. Your car requires two of these. Not sure what other filters you are noticing. Maybe take a picture and post it here. The other filter is the cabin HVAC filter, but that one sits under the glove box inside the car, if I'm not mistaken.
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From: Indiana
W212 E350 4 Matic 2011
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From: NYC
2012 C300 4Matic
I've seen them on other vehicles. They are carbon filters, required under some environmental regulation or other, probably to prevent any retrograde circulation of exhaust or fuel vapor into the atmosphere. You can probably just rip them out and gain a tiny bit of power. Not 100% sure though, because these do look a bit different from the ones I've seen.
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Super Member
Joined: Jan 2009
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From: Silicon Valley, California
Factory ordered 2012 MB C350 w/Dynamic Handling Package
I have the same issue but with M276 engine. Can I just rip them out?
https://mbworld.org/forums/c-class-w...-filter-s.html
https://mbworld.org/forums/c-class-w...-filter-s.html
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Joined: Jul 2012
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2012 C63 AMG Sedan
Charcoal filters.
Many of the C63 owners rip them out, helps the engine breathe a little easier. Be careful though, no one sells just those and if you damage them you have to buy the entire new filter from mercedes.
Many of the C63 owners rip them out, helps the engine breathe a little easier. Be careful though, no one sells just those and if you damage them you have to buy the entire new filter from mercedes.
