My very personal K&N filter for the M271 review
Thread Starter
Senior Member
Joined: Apr 2010
Posts: 410
Likes: 2
From: Orlando FL
2009 C300 4Matic Sport
My very personal K&N filter for the M271 review
Many things have been said about the K&N Filter for the C230 Kompressor M271 Engine.
I read many times that these filters won't add power at all, could damage MAF sensor, etc. But the true for me is that I decided to purchase and install this filter because of its cost (50$ against 30$ stock) and the fact that it will be the last filter I will ever use.
The surprise came the first time I drove my car with it. It Does feel better at low RPM's, I won't notice any improvement in acceleration times from 0-60 or 1/4mile, it won't also be night and day difference, but there is a very welcomed low-mid range torque gain that you can feel the first few minutes you're driving with the filter.
Also when you are going 30mph and want to accelerate to something like 70mph, you feel the engine going smoother and it wont need to 'over-rev' (load a previous gear) as often as it would with the stock filter.
It's important to mention that the old filter was 3k miles old, so it wasn't dirty enough.
Here is a pic of the filter installed and you can also see the old filter near.
Recommended? YES!
I read many times that these filters won't add power at all, could damage MAF sensor, etc. But the true for me is that I decided to purchase and install this filter because of its cost (50$ against 30$ stock) and the fact that it will be the last filter I will ever use.
The surprise came the first time I drove my car with it. It Does feel better at low RPM's, I won't notice any improvement in acceleration times from 0-60 or 1/4mile, it won't also be night and day difference, but there is a very welcomed low-mid range torque gain that you can feel the first few minutes you're driving with the filter.
Also when you are going 30mph and want to accelerate to something like 70mph, you feel the engine going smoother and it wont need to 'over-rev' (load a previous gear) as often as it would with the stock filter.
It's important to mention that the old filter was 3k miles old, so it wasn't dirty enough.
Here is a pic of the filter installed and you can also see the old filter near.
Recommended? YES!
Last edited by ggms16; Sep 22, 2011 at 09:08 PM.
Member
Joined: Dec 2010
Posts: 117
Likes: 0
From: McLean, VA
2004 C240 4Matic
ok, then it was not my computer, I deleted my post because I was viewing another forum heading with photos that did not show, so I thought it may have been your pic, but then I refreshed the page and I saw it on the other page, refreshed this page and saw it. Cool deal. Its about time for me to get new filters for my car too and trying to decide on stock or not..
Thread Starter
Senior Member
Joined: Apr 2010
Posts: 410
Likes: 2
From: Orlando FL
2009 C300 4Matic Sport
ok, then it was not my computer, I deleted my post because I was viewing another forum heading with photos that did not show, so I thought it may have been your pic, but then I refreshed the page and I saw it on the other page, refreshed this page and saw it. Cool deal. Its about time for me to get new filters for my car too and trying to decide on stock or not..
Go ahead and buy the K&N.. I already have 1k miles with it, no problems at all and I'm very happy with the improved performance.
MBWorld Fanatic!
Joined: Feb 2009
Posts: 5,537
Likes: 8
2006 C350 Sport 6MT
K&N filter sucks!! I had a premature MAF failure like most people who used K&N and got their MAF destroyed. I believe it's a hit or miss with this. They say you are fine if you dont overoil it. But some people claim even factory they are oiled up the ...
I'll be returning to stock filters soon. At first I felt a good power gain but then I believe my MAF adjusted to it because it kind of went away after couple of days.
P.S. I've had mind for little above 25k miles.
I'll be returning to stock filters soon. At first I felt a good power gain but then I believe my MAF adjusted to it because it kind of went away after couple of days.
P.S. I've had mind for little above 25k miles.
Thread Starter
Senior Member
Joined: Apr 2010
Posts: 410
Likes: 2
From: Orlando FL
2009 C300 4Matic Sport
K&N filter sucks!! I had a premature MAF failure like most people who used K&N and got their MAF destroyed. I believe it's a hit or miss with this. They say you are fine if you dont overoil it. But some people claim even factory they are oiled up the ...
I'll be returning to stock filters soon. At first I felt a good power gain but then I believe my MAF adjusted to it because it kind of went away after couple of days.
P.S. I've had mind for little above 25k miles.
I'll be returning to stock filters soon. At first I felt a good power gain but then I believe my MAF adjusted to it because it kind of went away after couple of days.
P.S. I've had mind for little above 25k miles.
25k miles is a lot, you should have serviced it yourself maybe a couple times already. How do you know that it wasn't your fault by over oiling it?
Like I said, this is my very personal review, I know this is a very sensitive topic.
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Joined: Oct 2004
Posts: 1,305
Likes: 37
From: Las Vegas, Nevada
2013 C350 Coupe, 2005 C230K Kleemann Sedan, 2013 GLK350 4matic
My K&N filter was part of the Kleemann boost kit that I had installed last year. I haven't had any issues with the filter and/or MAF sensor. I use a paper element when I have the K&N out for a cleaning and reoiling in order to let the oil penetrate the filter and avoid any excess oil from being introduced into the intake.
I guess the key is to let the filoter dry completely before oiling and not to over oil the filter
I guess the key is to let the filoter dry completely before oiling and not to over oil the filter
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MBWorld Fanatic!
Joined: Oct 2008
Posts: 1,102
Likes: 1
From: Norcal
43
After buying NEW k&n filters, it is advisable to leave them in the open air to dry a few hours before installing them. But if you insist on installing them right away, be sure to turn on the car after the new filters are in and let it idle for about ten minutes, so the MAF sensor does not get gummed up with excess amounts of oil. The suction from idle will be enough to slowly dry the oil without harming the MAF sensor. But i would prefer the former over the latter.
But with that being said, I hold pretty firm that little (1 bhp at most) to no gains are felt without at LEAST a reset or ecu tune.
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Thread Starter
Senior Member
Joined: Apr 2010
Posts: 410
Likes: 2
From: Orlando FL
2009 C300 4Matic Sport
Senior Member
Joined: Jul 2010
Posts: 250
Likes: 0
From: Charleston, SC
2005 C230K
Many things have been said about the K&N Filter for the C230 Kompressor M271 Engine.
I read many times that these filters won't add power at all, could damage MAF sensor, etc. But the true for me is that I decided to purchase and install this filter because of its cost (50$ against 30$ stock) and the fact that it will be the last filter I will ever use.
The surprise came the first time I drove my car with it. It Does feel better at low RPM's, I won't notice any improvement in acceleration times from 0-60 or 1/4mile, it won't also be night and day difference, but there is a very welcomed low-mid range torque gain that you can feel the first few minutes you're driving with the filter.
Also when you are going 30mph and want to accelerate to something like 70mph, you feel the engine going smoother and it wont need to 'over-rev' (load a previous gear) as often as it would with the stock filter.
It's important to mention that the old filter was 3k miles old, so it wasn't dirty enough.
Here is a pic of the filter installed and you can also see the old filter near.
Recommended? YES!
I read many times that these filters won't add power at all, could damage MAF sensor, etc. But the true for me is that I decided to purchase and install this filter because of its cost (50$ against 30$ stock) and the fact that it will be the last filter I will ever use.
The surprise came the first time I drove my car with it. It Does feel better at low RPM's, I won't notice any improvement in acceleration times from 0-60 or 1/4mile, it won't also be night and day difference, but there is a very welcomed low-mid range torque gain that you can feel the first few minutes you're driving with the filter.
Also when you are going 30mph and want to accelerate to something like 70mph, you feel the engine going smoother and it wont need to 'over-rev' (load a previous gear) as often as it would with the stock filter.
It's important to mention that the old filter was 3k miles old, so it wasn't dirty enough.
Here is a pic of the filter installed and you can also see the old filter near.
Recommended? YES!
MBWorld Fanatic!
Joined: Feb 2009
Posts: 5,537
Likes: 8
2006 C350 Sport 6MT
I'm not sure if you should blame the filter for that. I know many people with premature MAF failures on this car without a K&N... My filter didn't seem to be over oiled and I will also be careful next time I clean it.
25k miles is a lot, you should have serviced it yourself maybe a couple times already. How do you know that it wasn't your fault by over oiling it?
Like I said, this is my very personal review, I know this is a very sensitive topic.
25k miles is a lot, you should have serviced it yourself maybe a couple times already. How do you know that it wasn't your fault by over oiling it?
Like I said, this is my very personal review, I know this is a very sensitive topic.
I also strongly feel (even though it's oiled to catch dust and such) the filter does less filtering than a paper filter. But to each their own. If the filter floats your boat they by all means go for it. But for me it sank my boat lol
Super Member
Joined: Jun 2005
Posts: 539
Likes: 5
From: Planet Earth
2006 CLS500 - Iridium Silver w/ AMG Sportline
K&N filter sucks!! I had a premature MAF failure like most people who used K&N and got their MAF destroyed. I believe it's a hit or miss with this. They say you are fine if you dont overoil it. But some people claim even factory they are oiled up the ...
I'll be returning to stock filters soon. At first I felt a good power gain but then I believe my MAF adjusted to it because it kind of went away after couple of days.
P.S. I've had mind for little above 25k miles.
I'll be returning to stock filters soon. At first I felt a good power gain but then I believe my MAF adjusted to it because it kind of went away after couple of days.
P.S. I've had mind for little above 25k miles.
Thread Starter
Senior Member
Joined: Apr 2010
Posts: 410
Likes: 2
From: Orlando FL
2009 C300 4Matic Sport
Senior Member
Joined: May 2014
Posts: 293
Likes: 0
From: Jersey City, NJ
2001 C320 w/ Sprt Pkg
I'm personally on the fence about getting these. I'd have to buy 2 for my C320, and I recently replaced my filters with some OEM ones. I have always had a K&N in all my cars, though. It especially woke up my Daytona Charger when I had it. It gained a bit more UMPH and made a nice sound driving.
Junior Member
Joined: Jun 2007
Posts: 33
Likes: 1
From: Phoenix, AZ
2005 C230K Sport Sedan
I guess having to buy two filters would suck, but I would still go for it. I think it's worth it if you want to keep the car. I have installed a K&N filter on every vehicle I have owned, and not one has given me any problems related to air intake.
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Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
K&N airfilters simply don't do a very good job. I would not touch them.
https://mbworld.org/forums/c-class-w...mp%3BN+filters
https://mbworld.org/forums/c-class-w...mp%3BN+filters
Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Sorry. That link has gone down. New link to same report.
http://www.nicoclub.com/archives/kn-vs-oem-filter.html
http://www.nicoclub.com/archives/kn-vs-oem-filter.html
