NSX2NV

I am getting ready to do a Service D interval on my car. It says I have to change some filters. Other than the regular motor air filters it says I have to change the cabin filter and a charcoal filter. I have read about people removing the charcoal filter. My question is, what should I remove and what should I replace? And what is the difference if I remove?

shardul

iTrader: (1)

Only the e63 have charcoal filters the e55 don't have them. You can replace the air filters and the cabin filter. The cabin filters are located below the glove box in the passenger footwell area.

jpohl402

On the 63, what is the purpose of charcoal filter ?
What does removing them do ?

prodigymb

i think there is also a cabin filter under the hood near the auxillary battery...

shardul

iTrader: (1)

Yes I forgot that one. The ones under the glove box are activated carbon filter for the air in the cabin.

komp55

As far as cabin air filtering goes, you either have the combi filter in the engine compartment (later models), or you have the under the dash filters. You don't have both.

D Bst

Not sure if that's a true statement.

My 04 E55 has (two) cabin filters under the dash (2118300818) as well as a single filter located above the aux battery under the hood. (2118300018)

They are all activated Carbon filters.

How do i know? I recently replaced all three.

FWIW- I bought all mine from Autohausaz.com - about $120 IIRC.

komp55

Very strange. Mine's an '05, and when I call up the filter PN in the EPC for the underdash filters, they come up as "not valid on this model" or something to that effect. I'd be very curious to see what comes up if your car's VIN were entered in the EPC.

I wouldn't be surprised if a tech at the dealer stuck a filter in your engine compartment housing not knowing your car had the older under the dash set-up.

How's the actual air flow? I would think it's diminished from what it should be as a result of too many filters.

D Bst

Airflow is good... cabin cools and heats just fine.
Filters were always there (and I changed what was there myself).

PM coming your way with VIN.

komp55

And I stand corrected based on a little EPC research. Apparently early cars got both the big filter in the engine compartment and the little ones in the passenger compartment. Later models only have the combi filter in the engine compartment.

SuperChargerE55

Yep so does mine

LoveMyAMG

I have 05 E55. & I only have the filter above the Aux Battery under the hood.

I took the panel off under the glove box, & other misc pieces and I don't see any filters under the passenger side.

I have a buddy with a non AMG E series, and I know what the filters look like under the glove box cause he has them & we've changed them.

Very odd, anyone else having this issue? i'm confused because I got the 2x inside filter from my local auto parts. Any feedback?

SuperChargerE55

Really really stange, but all I can think of it is has to do with year/ country perhaps.
I took mine of again yesterday just to double check I have
1 filter engine bay above small battery
2 filters under glove box
all 3 are charcoal- filters.


So did some digging, models with activated charcoal filters
it seems it has been discontinued and replaced with a combined filter, I did not find anything in WIS about it just looked my 2004 up but I see a lot of questions about this I can imagine is the same for our E55/E63 as for the E500
http://www.benzworld.org/forums/w211...-e500-has.html


only I just replaced mine yesterday got 2 new ones matching the old and they are not combo but still Charcoal filters so an a little ??
lol still guessing is the same and this answer our questions why some has it some don't

Yuille36

The charcoal cabin filter helps to eliminate odors, as well as filter out contaminants from the outside. if removed, you will have pure outside air coming inside your vehicle without be filtered, this includes dust, sand, pollen, and even bugs. So don't do it. just replace the filter.

MACEDON

You gain 5hp

Yuille36

That is totally incorrect, the charcoal filter are related to the cabin filter, and not the engine air filters. So there is no HP gain.

Strigoi

Nope. There are gains from doing it. Unless you're talking about different charcoal filters.

https://mbworld.org/forums/w211-amg/...e-18-rwhp.html

Yuille36

I haven't heard of any charcoal engine filters, only the cabin filters.

Yuille36

My apologies Macedon and Strigoi, you are absolutely correct there are charcoal liner inside of the airboxes. I completely forgot all about those.

Strigoi

I just found about them the other day. I finally have some free time after work today and am planning on pulling them out of mine.

Yuille36

I run a Carbonio CF air intake, and they do not have the charcoal filter in them. They supposedly have a 18-21 HP gain, and 14-18 lbs/ft. torque increase. Well, I really can't feel it from the seat of my pants. But the car has more giddy up

Yuille36

This thing is beautiful, and expensive

skylinrcr01

Wouldn't want stinky air going in to the engine now, would we?

MACEDON

I was joking lmao

tw2

Sorry to bring this back up again. I have a 2005. Local parts person has sold me a particulate filter (white, not charcoal activated) for the engine compartment. Car now smells of exhaust in traffic. He claims there is are two charcoal ones under the dash. Pelican parts claim I have the single engine bay combined (particulate and charcoal) filter and no under dash one. I know the original one I pulled out was the charcoal activated model by micronair (oem supplier to MB).

When did the change happen, it seems to be from 2004 to 2005 they went from 3 filters to the single engine bay combination filter. Is this correct?

I don't like pulling that plastic cover under the dash, always a pain to get back in correctly but where under that would the filters be located? I didn't notice anything obvious last time I had it off for head unit install. Thanks for the help.