Airfilters
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Joined: Mar 2010
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
I have had fast flow filters both K&N and now Green for years on nearly all my vehicles with never a problem. The secret is to apply a very thin spray of oil after having cleaned them. Over oiling will indeed kill the MAF. Clean them at least x1 year regardless of distance driven. If you live in a sandy desert type area, then a more regular cleaning would be a good idea.
The OEM filters do the job perfectly but the fast flow ones will give you a touch more intake noise. With the big air-box it is very much more noticeable
Last edited by DRBC43AMG; Mar 14, 2017 at 04:42 AM. Reason: Completed post
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From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
IMO;-
not recommended to go with oily filters,
we have very sensitive MAF film, that will affected during hot oil sneaks there,,
moreover; when oil mixed with dust & Humidity, the vent rooms will clogged, that will definitely causes bad reflect to the air inlet & density..!!?!?!
-;ZAYED;-
not recommended to go with oily filters,
we have very sensitive MAF film, that will affected during hot oil sneaks there,,
moreover; when oil mixed with dust & Humidity, the vent rooms will clogged, that will definitely causes bad reflect to the air inlet & density..!!?!?!
-;ZAYED;-
Senior Member
Joined: Feb 2017
Posts: 392
Likes: 9
From: Australia
W202 C43 1999
There is no power advantage, however there is a disadvantage in that the filtering is not as fine, and dust will go through.
The K&N is fine for a pre-filter ( not that youd use one on a road car ) , but there is no need for it as a primary filter.
MBWorld Fanatic!
Joined: Mar 2010
Posts: 5,889
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
It's 8cm thick at the air-box exit over the MAF. So that's 3.1496 inches so it's not the 4" one. It could be that the 4" we here was a prototype and a bit too high to fit without rubbing. I believe George cleared this question when answering one of Kowalski's multiple queries... 
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Senior Member
Joined: Jul 2012
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From: Grand Rapids, MI
99 C43 AMG, 2001 CLK55 AMG
i have K&N filters in my C43 and CLK55. been 4 years in the C43 now, and cleaned 2x i think, no issues at all. only 1 year in the CLK55, haven't cleaned yet (i only drive the cars in the warm season and 5000 miles or less a year so not much use.
i have no idea how people have problems with K&N, im guessing a few people just greatly over oiled them when cleaning??
i have no idea how people have problems with K&N, im guessing a few people just greatly over oiled them when cleaning??
MBWorld Fanatic!
Joined: Mar 2010
Posts: 5,889
Likes: 323
From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Senior Member
Joined: Feb 2017
Posts: 392
Likes: 9
From: Australia
W202 C43 1999
i have K&N filters in my C43 and CLK55. been 4 years in the C43 now, and cleaned 2x i think, no issues at all. only 1 year in the CLK55, haven't cleaned yet (i only drive the cars in the warm season and 5000 miles or less a year so not much use.
i have no idea how people have problems with K&N, im guessing a few people just greatly over oiled them when cleaning??
i have no idea how people have problems with K&N, im guessing a few people just greatly over oiled them when cleaning??
MBWorld Fanatic!
Joined: Mar 2010
Posts: 5,889
Likes: 323
From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
MBWorld Fanatic!
Joined: Feb 2010
Posts: 1,506
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From: Bolingbrook Illinois
1999 C43 Amg
All my modded air boxes are about the same size. Maybe 1/4 inch difference from each one. I only made ONE lower than the rest. I have a version 2 air box now. Made the first one for pjmack which he should receive today or tomorrow.
Super Member
Joined: Nov 2011
Posts: 949
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From: San Diego
2004 E55
Originally Posted by benzslo
Oiled filters kill the maf period, can't tell you how many I've replaced with k&n filters.
Super Member
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From: Vancouver, B.C., CANADA
2006 E55 AMG/1996 C36 AMG/1999 C43/55 AMG/2021 Toyota Tundra Crew Max TRD Sport Premium
MBWorld Fanatic!
Joined: Mar 2010
Posts: 5,889
Likes: 323
From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Super Member
Joined: Jan 2013
Posts: 636
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From: MN, USA
C43 5.4, ML320CDI, Fords
Super Member
Joined: Mar 2008
Posts: 960
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From: Vancouver, B.C., CANADA
2006 E55 AMG/1996 C36 AMG/1999 C43/55 AMG/2021 Toyota Tundra Crew Max TRD Sport Premium
• What makes Green Filter oil different from other brands?
Green High Performance Air Filters come pretreated with a specially formulated dirt-trapping oil. Our proprietary lightweight, synthetic Green Filter oil is designed to not damage any vehicle sensors.
This oil creates a positive (+) magnetic charge, or ionic bond, with the filter's stainless steel mesh. The positive charge attracts the negatively (-) charged dust particles entering the filter, causing them to cling to the steel mesh and allowing the cotton to remain clear for maximum air flow.
Green Filter oil also contains a swelling additive for the cotton filtration media. This causes the cotton fibers to swell, which allows the filtration media to collect the very small dirt particles (down to 5 microns) that could otherwise harm your engine.
Last edited by nkctb7; Mar 16, 2017 at 11:09 PM.
Super Member
Joined: Nov 2011
Posts: 949
Likes: 47
From: San Diego
2004 E55
Originally Posted by nkctb7
Green Filters=No oil.
Super Member
Joined: Mar 2008
Posts: 960
Likes: 26
From: Vancouver, B.C., CANADA
2006 E55 AMG/1996 C36 AMG/1999 C43/55 AMG/2021 Toyota Tundra Crew Max TRD Sport Premium
