C36 AMG, C43 AMG (W202) 1995 - 2000

Air Filter Inlet Restriction

Old 11-10-2018, 05:24 PM
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Air Filter Inlet Restriction

For those of us that like/want better performance. This is something you have to look into. Remove your air box, than look through the air inlet and see if the side of your air filter has a black rubber blocking the air inlet. See attached picture.

What I did was mark the rubber where it's blocking air. Than remove the air filters and cut that section of the rubber out. After cutting it off you should just see the filter with no more rubber. This should be enough as that area now can suck in air coming in.

Keep in mind that any thing little or big that blocks or restricts air will help the engine breathe better.







Tags: Mercedes air box mods modifications, Mercedes air intake, more power for Mercedes. Mercedes air intake elbow mod modifications.
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Old 11-11-2018, 12:11 PM
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I'll need to check that out on the enlarged air box, not unless you have already cut that part out when you modified the box. George, can you confirm this?

Checking will be a bit later as "T-Rex" is currently at the paint shop for some rust repairs in the usual places and a full respray
Old 11-11-2018, 04:26 PM
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Originally Posted by DRBC43AMG
I'll need to check that out on the enlarged air box, not unless you have already cut that part out when you modified the box. George, can you confirm this?

Checking will be a bit later as "T-Rex" is currently at the paint shop for some rust repairs in the usual places and a full respray
I modify the box itself not the filters. Its the side of the filters that could be stopping airflow if the sides are rubber. Simple cut will make a difference.
Old 11-13-2018, 03:44 AM
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Originally Posted by speed43
For those of us that like/want better performance. This is something you have to look into. Remove your air box, than look through the air inlet and see if the side of your air filter has a black rubber blocking the air inlet. See attached picture.

What I did was mark the rubber where it's blocking air. Than remove the air filters and cut that section of the rubber out. After cutting it off you should just see the filter with no more rubber. This should be enough as that area now can suck in air coming in.

Keep in mind that any thing little or big that blocks or restricts air will help the engine breathe better.







Tags: Mercedes air box mods modifications, Mercedes air intake, more power for Mercedes. Mercedes air intake elbow mod modifications.
speed43mods@gmail.com
Ahhhhh, nice catch Geo..

-;ZAYED;-
Old 11-13-2018, 10:35 AM
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That blockage is not the same with stock filters which were designed by mercedes. It has slats doesn't it? Those allow the air to go through. Looks like you have K&N filters which have solid rubber sides.

I guess it depends which way they are positioned in the box, I would have to look at it again.

Last edited by PJmak; 11-13-2018 at 10:38 AM.
Old 11-13-2018, 09:00 PM
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I have afe and its black rubber all around.
Old 11-14-2018, 06:13 AM
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Originally Posted by speed43
I have afe and its black rubber all around.
I have the same filters in my C43 in the renntech air box. I'll have to check them when I get back into town next week.
Old 11-14-2018, 08:21 PM
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Originally Posted by 503C43 ////AMG
I have the same filters in my C43 in the renntech air box. I'll have to check them when I get back into town next week.
Yeah check it and fix it for better flow. I'm going to fix mine next week and I will post a picture of how it should be.
Old 11-14-2018, 08:24 PM
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Originally Posted by cm60k
Ahhhhh, nice catch Geo..

-;ZAYED;-
I can't believe manufacturers don't catch these things. I guess its because of so many other cars they have to make them for....

But to advertise better flow and yet they block the air like this, wow.

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