gstatus929

Hey,
So I changed my oil and decided to delete my charcoal filters as well.

I didn't find any DIY's so i just messed around and figured it out my self. I opened the air filter boxes and without fully removing them I pried out the top upper filter which i assume is the "charcoal filter"

I honestly have not felt any improvement or gains from this mod, high end power feels stronger but that may just be due to the fresh oil.

The only noticed difference is that the car switches gears harder and feels like the shifts are faster and harder (little stronger kick). Is that a common advance?

Will the dealer give me a hard time if they find these filters missing?

clkwork

I don't understand this mod. Even if you got +20hp (which you don't - you probably don't even get +5hp) it wouldn't be worth the risk.

I would put them back, they are there for a reason.

gstatus929

sooo many people do it, and my question is whats the risk

clkwork

I'll admit that I'm not familiar with the filter design, but if removing the charcoal filter causes the primary filter to fit loosely then obviously you run the risk of ingesting debris and damaging your engine over time.

Also I would question whether or not the charcoal filter was engineered to serve as a secondary filtration system for sub-micron particles when used in conjunction with the primary filter medium. As I understand it the Euro models do not have the charcoals, so if they are using the same primary filter then that would answer this question.

If you are convinced that it's safe then by all means go for it.

Verb04

There are NO risks in removing the charcoal filters. The Euro spec E63’s do not come with these filters.

gstatus929

Car feels like its sucking in more air, more of a wine in the front i think

I am Jeff

The charcoal filters are only there for US emission purposes. There is no risk to it. The car feels stronger in the top end because it's breathing more freely.

Yosheego

Are these charcoal filter only in the e63 or would i find them in the e550 also?

_AMG_

They come with all the M156 V8's.
Don't know about the E550's though.

Vic55

I have always felt this mod is negligible at best- in fact more of a placebo effect but I do it anyways. Why? Because it has no cost and no damage to the engine.

vladsf

just did it on mine. haven't noticed any difference.