navd488

Hey guys
so today i put my row air box and K&N filters in my car
i washed the filters and never oiled them so there oil free

The car runs fine does no back fire or stutter

I hooked up odb II reader and got these codes

P0101
P010B
P1351
P3729

anyone help plz

Jons95c36amg

K&N is a waste,Row box not sure about. Do you have charcoal filters? I always had problems when I removed them. I just keep them in.

navd488

i always had my charcoals removed and never had a problem at all
just now when i put the row boxes and my filters back in i got these codes but car runs fine
pulls hard

Merc63

Did you know the m156 is the only engine with charcoals?

Seems like they put them in there for a reason other than emissions.



Check for leaks after the maf

abcut973

Yeah check your boxes are properly seated. Clean you MAFs just in case. GL

Mort

I wouldn't recommend running K&Ns without being oiled as they will let too much fine dust through. Get some AFE or Weistec dry filters if you don't want to run oiled filters.

average joe

The charcoals are only fitted in the US i believe, in Europe they are not fitted just the same as ROW boxes are standard in Europe.....don't know why.

I have K&N's fitted and never had any CEL issues.

AMG893

Australia no charcoal filters.

Merc63

Maybe we have something in the air haha

Mine runs like poop without charcoals.

dubzAMG

Mine runs good without the charcoals, and i'm local to you Merc63

Jons95c36amg

This is very odd. I know guys with the C63,E63 both m156 charcoals removed they have no issues. Mine from day one when the car was stock I remove them and CEL. Even after tune. Very odd..

navd488

i just picked up stock filters and gonna see if it goes away i got a bench of random codes that i don't even no what they mean

ENVē

Has this ever been rectified? I ordered RoW boxes with AFE filters this week and would hate to throw a code. Is the Eurocharged V5 tune good at helping not throw a CEL

INS1GNIA

I also have the V5 tune and last month I installed the ROW boxes w/AFE filters and no code was thrown. Don't worry too much, I'm sure everything will go smooth.

Mort

This problem always seems to be worse for the 2009 MY. Not sure why but maybe the MAFs are more sensitively tuned for that year. You should be fine. Take your time with the install and make sure the boxes are properly inserted into the manifold y-connector and the clamps are snugged up. I take the air boxes off the engine when I work on my filters. Get the filters installed and the tops screwed down then fit the whole box back onto the y-pipe and push the mounting rubbers back into the spring mounts on the engine. Always seemed to work better this way for me.