Green air filters for '09 350?

cousjcc · 06-29-2008

Been reading through the threads, researching and what not. I keep seeing people talking about these Green air filters that they installed on their SLKs. I have two questions:

1. Are they referring to them as the Green air filters just because of their color, or is that their actual name?

2. With the modified air intake on the 2009 model SLKs (they've changed it to a single air intake from what I understand), will the Green filters still fit or does anyone know of which one I should be looking for?

I'm admittedly not that techno-savvy when it comes to automotive engines, but I would like to take care of this new baby of mine, and from everything I've read in these forums the green filters certainly couldn't hurt. Thanks!

As a side note: I've always driven V6 coupe sports cars, and have always used fully synthetic oil in them. I've heard some people say that you should wait until your 3rd oil change to switch from regular oil to synthetic, after the engine has had a chance to break in. Can anyone confirm this? My last car I only drove 1500 miles on it before changing the oil out and putting full synthetic in and didn't have any problems in the 3 years I owned it but I want to be doubly sure with my new MB.

mtiede · 06-30-2008

1. I don't have them, but by reading these threads, the Green Filters are green.

2. don't know.

I believe all the SLKs use synthetic. Do you have the manual? It should tell. I don't think you will have to change since it is already synthetic.

cousjcc · 06-30-2008

Sounds good to me if that's the case. Don't have the manual yet, taking delivery of the car at the end of July. I wanted a Capri blue which for some insane reason dealerships here in TX never get in, always black and grey... :shrug: . Just wish they hadn't discontinued caspian blue after '08

Thx for the reply

**Cold Shot** · 06-30-2008

1. Green Filters are Green, and that is also the brand name. I would suggest you visit their website. http://www.greenfilterusa.com/

2. Not sure about this. It might take some time for an aftermarket parts supplier like Green to have a part developed for a new model. You could always call them.

**etyu** · 06-30-2008

IIRC, jbanks15 used the Green Air Filters in his 2009 SLK 55 (so I presume it is the same for the 55 as earlier model years). I don't know what the air filter box is like on the facelift 300 and 350. Perhaps other members may post a photo and comment.

Another way is to check/look for the OEM air filter number in the facelift model. If it uses the same air filter part no. as the prior year models, then Green Air Filter #2247 should fit. Pre-facelift R171 uses a pair of Green Air Filters.

cousjcc · 06-30-2008

Aye I'll be checkin' the part number on the air filter, as well as whether I still need a pair of 'em or just one with the redesigned intake, as soon as I get the car. Air filters and oil changes are about the only things I've ever done on my own cars, but if I keep this one longer than 3 years (and I probably will since its the first time I've been able to afford a "dream" category vehicle) I may delve deeper into its guts if I can find enough step by step walkthroughs.

**WhiteRabbit** · 07-05-2008

Quote:

Originally Posted by cousjcc

As a side note: I've always driven V6 coupe sports cars, and have always used fully synthetic oil in them. I've heard some people say that you should wait until your 3rd oil change to switch from regular oil to synthetic, after the engine has had a chance to break in. Can anyone confirm this? My last car I only drove 1500 miles on it before changing the oil out and putting full synthetic in and didn't have any problems in the 3 years I owned it but I want to be doubly sure with my new MB.

On cars that are delivered with 'dino' oil you need to wait to switch to synthetic oil so that the piston rings bed in correctly, otherwise you will get increased oil consumption. On cars that are delivered with synthetic like our SLKs this is not an issue as they are designed to bed-in using synthetic (the exception being a few early 05 SLK 350s that had oil consumption problems due to faulty piston rings).

**UK-C200** · 07-05-2008

Quote:

Originally Posted by WhiteRabbit

On cars that are delivered with 'dino' oil you need to wait to switch to synthetic oil so that the piston rings bed in correctly, otherwise you will get increased oil consumption. On cars that are delivered with synthetic like our SLKs this is not an issue as they are designed to bed-in using synthetic (the exception being a few early 05 SLK 350s that had oil consumption problems due to faulty piston rings).

Hey WhiteRabbit - I though I'd seen some pictures you had posted of your '09 engine bay, but cant' find 'em if you did...

Was curious about the intake design on the "new" 350...

**WhiteRabbit** · 07-06-2008

Quote:

Originally Posted by UK-C200

Hey WhiteRabbit - I though I'd seen some pictures you had posted of your '09 engine bay, but cant' find 'em if you did...

Was curious about the intake design on the "new" 350...

Here's the pic (I didn't take it) of the European 350, but mine looks the same. What's cool is that some people thought that M-B matched the engine color, red, with the car's interior which is also red on my car.

**UK-C200** · 07-06-2008

Quote:

Originally Posted by WhiteRabbit

Here's the pic (I didn't take it) of the European 350, but mine looks the same. What's cool is that some people thought that M-B matched the engine color, red, with the car's interior which is also red on my car.

Sounds like a good story to me! I love the fact that you can actually say "my engine matches my seats" ;P Looks like the air filters are the same as the legacy R171 - you've not tried greens yet, right?

**etyu** · 07-06-2008

Quote:

Originally Posted by WhiteRabbit

Here's the pic (I didn't take it) of the European 350, but mine looks the same. What's cool is that some people thought that M-B matched the engine color, red, with the car's interior which is also red on my car.

From the pix, it looks like the same airbox except for the red band. It probably uses the same air filters.

**WhiteRabbit** · 07-06-2008

Quote:

Originally Posted by UK-C200

Sounds like a good story to me! I love the fact that you can actually say "my engine matches my seats" ;P Looks like the air filters are the same as the legacy R171 - you've not tried greens yet, right?

I'm skipping the green filters on this one. I installed them on my 06 SLK 280 and my average mileage dropped 1.5 mpg afterwards (I track my mileage in a spreadsheet). I know that is contrary to what others have experienced.

**jbanks15** · 07-13-2008

I am running 'green' in my 09 slk 55 amg. the oem filter i replaced is a1120940004. i am sure those are the same as any other model 171 back to 05.

06-29-2008	#1 (permalink)
cousjcc Senior SLK World Member Join Date: Jun 2008 Location: San Antonio, TX Vehicle: '09 SLK 350, Capri Blue/Black interior, Premium, Heating, AMG hood fins, window tint (a must in TX) Other Toys: Sold my motorcycle /cry Posts: 150 Country: Thanks: 8 Thanked 36 Times in 17 Posts	Green air filters for '09 350? Been reading through the threads, researching and what not. I keep seeing people talking about these Green air filters that they installed on their SLKs. I have two questions: 1. Are they referring to them as the Green air filters just because of their color, or is that their actual name? 2. With the modified air intake on the 2009 model SLKs (they've changed it to a single air intake from what I understand), will the Green filters still fit or does anyone know of which one I should be looking for? I'm admittedly not that techno-savvy when it comes to automotive engines, but I would like to take care of this new baby of mine, and from everything I've read in these forums the green filters certainly couldn't hurt. Thanks! As a side note: I've always driven V6 coupe sports cars, and have always used fully synthetic oil in them. I've heard some people say that you should wait until your 3rd oil change to switch from regular oil to synthetic, after the engine has had a chance to break in. Can anyone confirm this? My last car I only drove 1500 miles on it before changing the oil out and putting full synthetic in and didn't have any problems in the 3 years I owned it but I want to be doubly sure with my new MB.
	http://www.slkworld.com/

06-30-2008	#4 (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	1. Green Filters are Green, and that is also the brand name. I would suggest you visit their website. http://www.greenfilterusa.com/ 2. Not sure about this. It might take some time for an aftermarket parts supplier like Green to have a part developed for a new model. You could always call them. __________________ "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)

06-30-2008	#5 (permalink)
etyu Founding Member #2 / Ambassador Of Good Will Join Date: Jun 2006 Location: Orange County, CA Vehicle: 2008 SLK 55 Posts: 4,910 Country: Thanks: 313 Thanked 207 Times in 107 Posts	IIRC, jbanks15 used the Green Air Filters in his 2009 SLK 55 (so I presume it is the same for the 55 as earlier model years). I don't know what the air filter box is like on the facelift 300 and 350. Perhaps other members may post a photo and comment. Another way is to check/look for the OEM air filter number in the facelift model. If it uses the same air filter part no. as the prior year models, then Green Air Filter #2247 should fit. Pre-facelift R171 uses a pair of Green Air Filters. __________________ *Eddy* To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts. Pewter/Beige, PIII package, Airscarf, Hands-Free Communication System, Lighting package Designo Black Leather Cover on e-brake handle, ( To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts. Bill T), SmartTop v1.0, Kleyman 3BFM (NoRegret Custom), Green Air Filters, *Mod. R170 ant.* EuroClear sidemarkers w/PIAA PlasmaIon lamps, chromed front & rear turn indicator lamps, PIAA SuperPlasmaGTX front parking lamps, HyperWhite license plate lamps ( To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts. Scott), bilateral rear fog lamps enabled.

07-13-2008	#13 (permalink)
jbanks15 Founding Member Join Date: Jun 2006 Location: Valrico, Florida Vehicle: 2009 SLK 55 AMG Posts: 599 Country: Thanks: 4 Thanked 20 Times in 16 Posts	I am running 'green' in my 09 slk 55 amg. the oem filter i replaced is a1120940004. i am sure those are the same as any other model 171 back to 05. __________________ Jeff 2009 SLK 55 AMG Black/Black Premium 1, Multimedia, Lighting packages Clearshield Protective Film OEM MB Plexiglass Windscreen Eurolight Clear Side Markers Smarttop version 3.22 Kleyman 3rd Brake Light Flashing/Strobing Module V1.5 (Noregrets Custom Works)

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06-30-2008	#2 (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	1. I don't have them, but by reading these threads, the Green Filters are green. 2. don't know. I believe all the SLKs use synthetic. Do you have the manual? It should tell. I don't think you will have to change since it is already synthetic.

06-30-2008	#3 (permalink)
cousjcc Senior SLK World Member Join Date: Jun 2008 Location: San Antonio, TX Vehicle: '09 SLK 350, Capri Blue/Black interior, Premium, Heating, AMG hood fins, window tint (a must in TX) Other Toys: Sold my motorcycle /cry Posts: 150 Country: Thanks: 8 Thanked 36 Times in 17 Posts	Sounds good to me if that's the case. Don't have the manual yet, taking delivery of the car at the end of July. I wanted a Capri blue which for some insane reason dealerships here in TX never get in, always black and grey... :shrug: . Just wish they hadn't discontinued caspian blue after '08 Thx for the reply

06-30-2008	#6 (permalink)
cousjcc Senior SLK World Member Join Date: Jun 2008 Location: San Antonio, TX Vehicle: '09 SLK 350, Capri Blue/Black interior, Premium, Heating, AMG hood fins, window tint (a must in TX) Other Toys: Sold my motorcycle /cry Posts: 150 Country: Thanks: 8 Thanked 36 Times in 17 Posts	Aye I'll be checkin' the part number on the air filter, as well as whether I still need a pair of 'em or just one with the redesigned intake, as soon as I get the car. Air filters and oil changes are about the only things I've ever done on my own cars, but if I keep this one longer than 3 years (and I probably will since its the first time I've been able to afford a "dream" category vehicle) I may delve deeper into its guts if I can find enough step by step walkthroughs.

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