Bluetec air filter change
Thread Starter
Senior Member
Joined: Mar 2018
Posts: 356
Likes: 76
From: Elizabethtown Kentucky
2019 E 300 4matic 2013 SLK 250
Bluetec air filter change
last weekend I got a wild hair and decided to change the engine air filters on my 08 E320 BlueTEC. I made three observations.
1. It ain’t easy
2. If you put the intake plenum (MAF sensor tube) on BEFORE you tighten the air boxes down it’s a LOT easier
3. The air filters shown above were filthy and full of bugs and bird feathers after TWELVE THOUSAND MILES!
Yes my partner insisted on taking a picture of the “Mercedes Moose”!
Im gonna start doing mine every 10,000 miles. It’s not that expensive and now that I know how to do it it should be a lot easier!
Last edited by DeutscheBenz726; Aug 13, 2018 at 01:43 PM.
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From: Montreal/Cape Coral FL
2012 X6 35i Sport, 2013 ML 350 BT, 2019 4Runner TRD Pro, 2020 CRV-AWD
You'll save your engine in ways you wouldn't believe, having little to do with air filtration per se. Good for you!
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Joined: Jan 2009
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From: V E G A S
1922 Ford Model T / no OBD
The visible dirt doesn't have to make big flow restriction. It is the dust that you can't see with bare eye that clogs the filters.
Invest $10 on filter minder and not only you save fortune on good filters going to garbage but also will sleep better. I did it on older car and 100,000 miles in California still had the filter clean.
Now have to figure out where to tap the intake on 320 Bluetec.
I did the filters on OM642 twice and even I did it alone, I still think driver side is 2-men job.
There is no way you can push the left filter housing into the groomet from the top, while being under you have no way to pull it.
I used long screwdriver to guide the housing from down below and than give it push from the top.
For me the best way is:
- bolt driver side filter housing
-insert fresh air pipe (Moose) on the driver filter and turbo
-put the passenger side filter and till it to engage with fresh air pipe.
-once you wiggle everything and make sure the seals did not fold - you can torque the clamps.
Invest $10 on filter minder and not only you save fortune on good filters going to garbage but also will sleep better. I did it on older car and 100,000 miles in California still had the filter clean.
Now have to figure out where to tap the intake on 320 Bluetec.
I did the filters on OM642 twice and even I did it alone, I still think driver side is 2-men job.
There is no way you can push the left filter housing into the groomet from the top, while being under you have no way to pull it.
I used long screwdriver to guide the housing from down below and than give it push from the top.
For me the best way is:
- bolt driver side filter housing
-insert fresh air pipe (Moose) on the driver filter and turbo
-put the passenger side filter and till it to engage with fresh air pipe.
-once you wiggle everything and make sure the seals did not fold - you can torque the clamps.
Thread Starter
Senior Member
Joined: Mar 2018
Posts: 356
Likes: 76
From: Elizabethtown Kentucky
2019 E 300 4matic 2013 SLK 250
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Senior Member
Joined: Jan 2010
Posts: 301
Likes: 23
1997 E300D
Mercedes has gone nuts on the design of some of their air filters. A neighbor's wife had an ML with a diesel in it. My neighbor is normally a DIY type, but after puzzling over how to change the two air filters, and finding that he had to remove part of the firewall behind the engine, he sold the car instead and bought her an optioned out Ford Escape. They are both happy about it.
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Senior Member
Joined: Aug 2016
Posts: 301
Likes: 29
From: S. W. Washington State
2008 E320 BlueTec, 1980 300 SD
Member
Joined: Jan 2014
Posts: 236
Likes: 30
From: Florida
2013 ML350 Bluetec, 2016 C3, 2020 Lincoln Aviator
Mercedes has gone nuts on the design of some of their air filters. A neighbor's wife had an ML with a diesel in it. My neighbor is normally a DIY type, but after puzzling over how to change the two air filters, and finding that he had to remove part of the firewall behind the engine, he sold the car instead and bought her an optioned out Ford Escape. They are both happy about it.
Where do these stories come from?
Junior Member
Joined: May 2018
Posts: 50
Likes: 6
Ml350
I think is WIS it actually suggests that? I cant imagine a tech would do that. I have it down to about 5 min a side to remove them because virtually any work requires they be taken out.
Senior Member
Joined: Jan 2010
Posts: 301
Likes: 23
1997 E300D
MBWorld Fanatic!
Joined: Jan 2009
Posts: 9,224
Likes: 1,798
From: V E G A S
1922 Ford Model T / no OBD
Hard to tell without seeing it, but I heard it on other forum that ML has part of the firewall design for easy removal, so you have better access to engine parts.
Other member used that for easy turbo removal.
Other member used that for easy turbo removal.
