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Pelican Technical Article:

Cabin Air Filter

Kerry Jonsson

Time:

15 minutes15 mins

Tab:

$25

Talent:

*

Tools:

10mm socket or wrench

Applicable Models:

Mercedes-Benz W211 (2003-09)

Parts Required:

Cabin air filter

Hot Tip:

Change air filters at the same time

Performance Gain:

Cleaner air into cabin

Complementary Modification:

Replace engine air filter

Mercedes Benz vehicles can either have fully electronically controlled climate control or a manually controlled system. Electronic climate control means you set a specific temperature and sensors in the cabin will control the blend and mode doors to keep the cabin at that specific temperature setting; no matter which system you have fresh air is taken in from the cowl area through a cabin air filter. This charcoal activated filter filters out impurities before the air enters the cabin. In this tech article we will go over the steps to replace your cabin air filter.

Mercedes Benz recommends that you replace the cabin air filter every 15,000 miles. We suggest you do it more frequently especially if you live in dusty areas.

This picture illustrates the right side of the engine compartment near the base of the windshield.
Figure 1

This picture illustrates the right side of the engine compartment near the base of the windshield. Under the black cover is where the cabin air filter is located. Remove the 10mm plastic nut (green arrow) that holds down the front of the cover.

Lift up on the front of the cover.
Figure 2

Lift up on the front of the cover.

Lift up on the rear of the cover to unseat the mounting tabs (green arrows), then remove the cover from the vehicle.
Figure 3

Lift up on the rear of the cover to unseat the mounting tabs (green arrows), then remove the cover from the vehicle. .

Pull out the cabin air filter housing and flip it over.
Figure 4

Pull out the cabin air filter housing and flip it over. You can use a plastic pry tool to lever the filter out the housing. Installation is the reverse of the removal steps. Fit the cabin filter into the housing. Flip over the housing and hook the rear of the housing on its seat on the HVAC housing. Push down on the front of the cabin filter housing and install the plastic 10 mm nut to hold down the front of the cover.

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Comments and Suggestions:
Mike Comments: Need to be very careful not to over torque the 10mm nut holding down the front of the cover. One extra turn and I cracked the plastic and had to purchase a new cover.
February 18, 2016
  Followup from the Pelican Staff: Thanks for the additional info and feedback. We appreciate it.
- Nick at Pelican Parts
 

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Page last updated: Wed 12/7/2016 02:30:37 AM