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Pelican Technical Article:

Air Filter Removal

Kerry Jonsson

Time:

30 minutes30 mins

Tab:

$50

Talent:

*

Tools:

T25 Torx driver

Applicable Models:

Mercedes-Benz W211 (2003-09)

Parts Required:

Air filter

Hot Tip:

Have a vacuum ready to suck up leaves and dirt

Performance Gain:

Better emissions and fuel economy

Complementary Modification:

Change cabin air filter

Consider your engine a self-powered air pump. Air is drawn into the engine from the vacuum generated in the intake manifold. To help an engine last longer air filters block dirt and debris from making it inside the engine. This dirt and debris is small but can to a lot of damage in the tight tolerances of a reciprocating engine. When air filters get dirty they can restrict air flow into the engine. This may affect emissions and will affect fuel economy. In this tech article we will go over the steps to remove your air filters so you can replace them.

Mercedes Benz recommends changing the air filters every 15,000 miles. We suggest you do with yearly and even more frequent in dusty areas.

In order to remove the air filters you will need to remove the engine cover / air filter housing. See our technical article on Engine Cover Removal.

With the engine cover removed place it on a surface you can work on it.
Figure 1

With the engine cover removed place it on a surface you can work on it.

Flip over the engine cover / air filter housing to view the underside.
Figure 2

Flip over the engine cover / air filter housing to view the underside.

Start removing the eight T25 Torx fasteners (green arrow), four on each side for each air filter.
Figure 3

Start removing the eight T25 Torx fasteners (green arrow), four on each side for each air filter. This car has two separate air filters. See next step for locations of all the fasteners.

ThisPicture illustrates the eight fasteners that need to be removed to separate the air filter housing.
Figure 4

ThisPicture illustrates the eight fasteners that need to be removed to separate the air filter housing.

Lift the air filter housing covers all off of the air filter housing.
Figure 5

Lift the air filter housing covers all off of the air filter housing.

Peel the air filters out of the air filter housing.
Figure 6

Peel the air filters out of the air filter housing.

If the air filter stays in the housing cover peel the air filter out of the housing cover.
Figure 7

If the air filter stays in the housing cover peel the air filter out of the housing cover. Be careful not to let any dirt or debris fall into the larger air filter housing cover.

Figure 8

When removing the air filter elements, be careful that dirt and debris does not end up inside the air filter housing. It may be a good idea to have a shop vacuum handy to vacuum out any dirt in the air filter housing.

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Comments and Suggestions:
jd Comments: this is not for the 07 E320 bluetec. looks completely different. title shows for 03-09
February 23, 2016
  Followup from the Pelican Staff: Thanks for the additional info. We appreciate it. I will have the article updated.
- Nick at Pelican Parts
 

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Page last updated: Mon 1/16/2017 02:31:43 AM