R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

R500 Air Filter Change Instructions

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Old May 14, 2009 | 07:51 PM
  #1  
rgood10921's Avatar
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From: Southern Indiana
2006 R500 Red w/Tan interior
R500 Air Filter Change Instructions

The attachment contains instructions for replacing the engine air filters on a
R500. I am not sure how close this is to those on a R350, but maybe you can get a good idea as to how do it for that engine by looking at these for the R500. The only trick to this job is having the right male & female Torx sockets/bits on hand.
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Old May 14, 2009 | 08:07 PM
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AsianR350's Avatar
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From: Warrington, PA
08 R350, 12 Mercedes R350
Goob job.

Moderator,
This should be STICKY thread.
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Old May 15, 2009 | 09:47 AM
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From: Nashville, TN
2007 R350 - P01- Black on Black, 2008 Toyota Sienna Limited
Directions are exactly the same for the R350...just did mine a month ago...would of been impossible to figure out withouth the Star DVD. Wish this would of come out sooner One thing I'll comment on in the process is Step 3. While you are supposed to use an E8 star socket, I didn't have one so I used a regular 6 or 7mm closed end wrench and it worked just fine.
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Old May 15, 2009 | 05:07 PM
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From: Woodbridge, VA
2007 R-500
RGood,

Beautifully done! Thanks for sharing this.

JR
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Old May 27, 2009 | 09:35 PM
  #5  
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2008 Mercedes R350 2WD
fabulous thread, thanks.
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Old May 31, 2009 | 12:53 AM
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adr4's Avatar
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R Class
Originally Posted by rgood10921
The attachment contains instructions for replacing the engine air filters on a
R500. I am not sure how close this is to those on a R350, but maybe you can get a good idea as to how do it for that engine by looking at these for the R500. The only trick to this job is having the right male & female Torx sockets/bits on hand.
Thanks for posting!!! Very detailed and great pics!
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Old May 31, 2009 | 01:29 AM
  #7  
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2007 r350..2005 Audi A8L...1965 Corvette...2004 HD Custom Fatboy
Originally Posted by rgood10921
The attachment contains instructions for replacing the engine air filters on a
R500. I am not sure how close this is to those on a R350, but maybe you can get a good idea as to how do it for that engine by looking at these for the R500. The only trick to this job is having the right male & female Torx sockets/bits on hand.

This is great. Thank you for sharing.
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Old Oct 7, 2011 | 01:20 PM
  #8  
Patty's Avatar
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R 500
Originally Posted by rgood10921
The attachment contains instructions for replacing the engine air filters on a
R500. I am not sure how close this is to those on a R350, but maybe you can get a good idea as to how do it for that engine by looking at these for the R500. The only trick to this job is having the right male & female Torx sockets/bits on hand.
rgood10921 I can't thank you enough for the instructions and pic's to replace the air filters on my 2006 R 500. Without you I would have struggled for a long time!
THANK YOU!!!!
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Old Oct 11, 2011 | 04:40 PM
  #9  
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From: Anderson Island, WA
06 R500
thanks from me too

I just installed my air filters for the first time (and changed the engine oil) this weekend. Great instructions- easy peezy. I too took the time to clean the intakes and covers, and the beds that held the filters were really dirty. Drives noticably better.
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Old Dec 9, 2012 | 08:36 AM
  #10  
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2009 R350
Many thanks to rgood10921: I did my 2009 R350 yesterday. Dealer quote was $178 parts and labor, my filter was $29.75 from
Amazon Amazon
:
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Old Dec 27, 2014 | 04:07 AM
  #11  
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R500
This is a great thread! Thanks for making the tutorial.
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Old Jan 4, 2015 | 08:26 AM
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Important missing step!

Overall this is an excellent write up and it applies to an R500 or R350. BUT, it is missing an essential step! At the throttle body where the air box seats there is a bail type hook that secures the air box tightly to the throttle body. When you remove the air box you can clearly see it if you look just behind the throttle body. It will have released the air box as you lifted the front of it up and out. When you reseat the air box after replacing the filters you need to reach back and re-clip the bail on the top of the air box. This "locks" it down tight on the throttle body.


How do I know this? When I did the filters yesterday after a short drive I got a check engine light. My code reader said sure enough running rich. After confirming the air filter boxes were snug, the air intakes were properly seated and the air pump hose (also not mentioned in the write up) was properly seated, that only left the air box not properly seated on the throttle body. It was during the second go around that I noticed the locking bail.


Strongly suggest that if you've replaced your air filters and skipped this step you go through the minor pain of removing the bolted in cover and reaching back and clipping your air box tight.
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