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Pelican Technical Article:

Air Filter Replacement

Time:

30 min

Tab:

$50

Talent:

*

Tools:

Screwdriver, rag

Applicable Models:

Mercedes-Benz E320 (1996-99)
Mercedes-Benz E420 (1997)
Mercedes-Benz E430 (1998-99)

Parts Required:

New air filter

Hot Tip:

Wipe down the inside of the airbox

Performance Gain:

If the old filter is really dirty, you'll pick up some power

Complementary Modification:

Change cabin air filter

Every 10,000 miles or so, you should change the air filter in your Mercedes. The air filter protects the air intake system, valves, pistons, cylinder walls, and engine oil from dust and debris that can be sucked in under normal operation. Replacement is a snap and should take only 20 minutes or so.

Begin by opening the hood and locating the airbox on the left front fender. Along the top edge of the cover are a series of clips that hold it to the lower portion of the airbox. Unlatch the clips and lift the upper cover off the airbox. As you do, unlatch the airbox from the MAF sensor tube. Once free, set the airbox cover aside.

Remove the old filter from the airbox. Pull it out of the lower housing and inspect it. Typically, if it's full of dirt and dust, it's time to replace it. It's also a good idea to use a vacuum cleaner to remove any loose debris from the lower airbox housing.

Place the filter element in the bottom of the airbox, taking note which way it is placed inside. Most filters will have an arrow printed on the side indicating which way it should be placed in the stream of airflow. Now refit the MAF sensor tube and upper cover to the airbox.

Here is aPicture of the new filter element for your Mercedes.
Figure 1

Here is a picture of the new filter element for your Mercedes. It's a good idea to check the filter element every few thousand miles. I'd check it even more frequently in dusty environments. Many times, a poor running car can be given new life just by changing the filter.

To remove the old filter element, open the hood and locate the clips securing the airbox cover to the airbox (green arrows).
Figure 2

To remove the old filter element, open the hood and locate the clips securing the airbox cover to the airbox (green arrows).

Shown here is a close-up of one of the clips that secure the air filter housing on the right hand side.
Figure 3

Shown here is a close-up of one of the clips that secure the air filter housing on the right hand side.

Lift the upper airbox cover up and off the lower portion.
Figure 4

Lift the upper airbox cover up and off the lower portion. Remove the two clips holding the MAF sensor to the airbox (green arrows). Once free, set the airbox cover aside.

Remove the old air filter from the housing.
Figure 5

Remove the old air filter from the housing.

Once the filter element is removed, take a minute to look inside the airbox.
Figure 6

Once the filter element is removed, take a minute to look inside the airbox. It's a good idea to clean out any loose debris, dirt or grime that may have collected in the bottom.

Place the filter element in the bottom of the airbox, taking note which way it is placed inside.
Figure 7

Place the filter element in the bottom of the airbox, taking note which way it is placed inside. Most filters will have an orientation arrow printed on the side indicating which way it should be placed in the stream of airflow. Now refit the MAF sensor tube and upper cover to the airbox.

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Comments and Suggestions:
ASP Comments: How do you remove the air box for cleaning and to provide access to the right side light bulbs?
March 1, 2016
  Followup from the Pelican Staff: Going by memory, there are fasteners around the perimeter of the housing, then it pulls straight up out of the grommets. - Nick at Pelican Parts  
Hong Comments: I had mine A200 bought last year late Dec 2013. After few months, I find the air- con smell, so I took it to the workshop. Guess what, they said my air filter is very dirty, need to change. Hey, my car is almost brand new, only 6 months plus and the filter is dirty and needed a change? My mileage is less than 4,400 miles, does it make any sense?
July 9, 2014
  Followup from the Pelican Staff: The cabin filter can be dirty, it really depends on where you live. It could be full of leaves and mold. - Nick at Pelican Parts  
Mike Comments: Hint: Use a Sharpie to write the date and mileage on the rim of the new filter before you close the filter box. Remember during inspection that the flow through the filter is bottom-to-top, so dust and grit will be on the lower surface of the filter.
June 19, 2014
  Followup from the Pelican Staff: Thanks for the additional info. We appreciate it.
- Nick at Pelican Parts
 
catalinasurf Comments: You have so many answers to my problems on this site, Thank You! Oh and parts too!
May 14, 2014
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 
BUFF Comments: THIS WAS VERY HELPFUL. I LOOKED AT SO MANY OTHER SITES THAT MADE IT SOUND DO DIFFICULT. YOUR SITE WAS GREAT...PHOTOS AND EASY TO UNDERSTAND INSTRUCTIONS.....THANK YOU MUCH, BUFF
March 30, 2014
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 
monica Comments: We want to buy some air filters of Benz as below
Model:A0040943504
Qty=50EA
December 24, 2013
  Followup from the Pelican Staff: Give our parts specialists a call at 1-888-280-7799. They can help you find the right part. - Nick at Pelican Parts  

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