K&N or GREEN filter ruining the MAF? - Page 2

**alroumi** · 06-13-2008

Quote:

Originally Posted by barnabas

i saw many people sayign the buy from the slk store. and then slkworld but i couldnt find it in this slkworld.com. any idea? thx

The store has been closed recently, unfortunately.

**etyu** · 06-13-2008

Quote:

Originally Posted by barnabas

i saw many people sayign the buy from the slk store. and then slkworld but i couldnt find it in this slkworld.com. any idea? thx

You can purchase from greenfilterusa.com, part #2247, you will need to buy one pair, and it should fit R171 with the 280(300), 350, and 55 engines.

**Cold Shot** · 06-13-2008

IMHO, the Greens are a little bit more "throaty" regards to exhaust notes. I recently inspected mine and noticed a caked and concentrated area of filter deposits. I am at 9,800 miles...well early of the recommended cleaning schedule. I also inspect them every 3 months. That said, your results will vary by area and driving conditions. So I am ordering the cleaning kit and will go at it when I get back from SoCal next week. For now, I tamped out the filters and turned them around so that the concentration of incoming air was through the cleaner end of the filters.

Can't speak knowledgably about K&N's. Sorry.

mtiede · 06-13-2008

Hmm.... Wouldn't turning them around put the bad stuff on the side of the air flow that is trying to be protected and then the air flow will blow stuff off into what is supposed to be protected? Doesn't sound like a good idea to me...

**richard_leeds** · 06-13-2008

Quote:

Originally Posted by mtiede

Hmm.... Wouldn't turning them around put the bad stuff on the side of the air flow that is trying to be protected and then the air flow will blow stuff off into what is supposed to be protected? Doesn't sound like a good idea to me...

That's not possible. There is a lip to the fliter edge so it can only go in one way. Coldshot has kept the dirty side on the outside face, by spinning it around, just like you would if you spun a plate on your table.

If you look at etyu's pics, you'll see the pipe comes up from the bottom on the pic with the pink filter. Coldshot's method assumes that the flliter will clog at the end nearest the pipe. So swapping top to bottom means the dirty air hits a different part of the filter.

**SLKDawg** · 06-13-2008

My mechanic addressed this issue with me on my X5. He said the chance of damage to the MAF is dependent upon how close the the MAF is to the filters themselves. Not sure how close it is on the SLK, but with my X5 it right behind the filter, so I ended up taking out my K&N filter per his recommendations.

**Cold Shot** · 06-13-2008

Quote:

Originally Posted by richard_leeds

That's not possible. There is a lip to the fliter edge so it can only go in one way. Coldshot has kept the dirty side on the outside face, by spinning it around, just like you would if you spun a plate on your table.

Correct. Sorry I was not a little more clear.

barnabas · 06-17-2008

hey i check http://www.airfiltersonline.com and they sell it for $ 49.44. is that for a pair? or i need to buy two of those? thx for the web btw

**Cold Shot** · 06-17-2008

Quote:

Originally Posted by barnabas

hey i check http://www.airfiltersonline.com and they sell it for $ 49.44. is that for a pair? or i need to buy two of those? thx for the web btw

You need two of those barnabas. At least I did for a SLK 55. Search the forums if you have a different model. Lots of posts here on filters and installs.

06-13-2008	#23 (permalink)
Cold Shot Elite SLK World Member Join Date: Feb 2007 Location: Scottsdale, AZ Vehicle: 2007 SLK55 AMG Other Toys: 2007 ML 350 Posts: 603 Country: Thanks: 93 Thanked 69 Times in 31 Posts	IMHO, the Greens are a little bit more "throaty" regards to exhaust notes. I recently inspected mine and noticed a caked and concentrated area of filter deposits. I am at 9,800 miles...well early of the recommended cleaning schedule. I also inspect them every 3 months. That said, your results will vary by area and driving conditions. So I am ordering the cleaning kit and will go at it when I get back from SoCal next week. For now, I tamped out the filters and turned them around so that the concentration of incoming air was through the cleaner end of the filters. Can't speak knowledgably about K&N's. Sorry. __________________ "Like a Cold Shot, baby" - Stevie Ray Vaughan To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts. ~~~~~~~~~~~~~~~~~~~~ 2007 Black/Black SLK55 AMG (Green Filters, SmartTop V1, Eurolight Clear Side Markers, R170 Modded Antenna) 2007 Pewter/Black ML350 19xx White/Blonde Wife (Lmtd Edition Model)

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06-13-2008	#24 (permalink)
mtiede Founding Member #7 Join Date: Jun 2006 Location: Western New York Vehicle: 2006 SLK 350 Posts: 1,381 Thanks: 60 Thanked 33 Times in 26 Posts	Hmm.... Wouldn't turning them around put the bad stuff on the side of the air flow that is trying to be protected and then the air flow will blow stuff off into what is supposed to be protected? Doesn't sound like a good idea to me...

06-13-2008	#26 (permalink)
SLKDawg SLK World Member Join Date: Jun 2007 Location: ATL Vehicle: 2005 SLK350 Posts: 92 Country: Thanks: 1 Thanked 14 Times in 3 Posts	My mechanic addressed this issue with me on my X5. He said the chance of damage to the MAF is dependent upon how close the the MAF is to the filters themselves. Not sure how close it is on the SLK, but with my X5 it right behind the filter, so I ended up taking out my K&N filter per his recommendations.

06-17-2008	#28 (permalink)
barnabas SLK World Member Join Date: Nov 2006 Posts: 12 Country: Thanks: 0 Thanked 1 Time in 1 Post	hey i check http://www.airfiltersonline.com and they sell it for $ 49.44. is that for a pair? or i need to buy two of those? thx for the web btw

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