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Cooper S Air Filter Replacement
 
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Pelican Technical Article:

Cooper S Air Filter Replacement

Nick Czerula

Time:

30 minutes30 mins

Tab:

$30

Talent:

**

Tools:

Flathead screwdriver, T25 Torx driver

Applicable Models:

R56 MINI Cooper S Hatchback (2007-11)

Parts Required:

Engine air filter

Hot Tip:

Work with a cool engine

Performance Gain:

Achieve highest possible fuel economy

Complementary Modification:

Replace dry rotted or cracked intake air ducts

The MINI R56 Cooper S engine intake air filter is a cylindrical pleated paper element housed inside a plastic box. The paper is designed to be porous to air flow but prohibits dust particles and grit from entering the engine intake ports. With time and depending on local conditions, the filter element becomes clogged and may eventually slow down or even altogether stop sufficient intake air from entering the engine. If air intake is restricted fuel economy and engine efficiency is reduced; the restriction may reach a point at which the engine does not run at all.

In this article, I'll go over the steps involved with replacing the air filter on the MINI R56 Cooper S. Replace the air filter once a year or more frequently if you drive in a dusty area. I suggest checking the air filter each time you change your engine oil, assuming you are changing your oil every 5,000 miles. It's easy to remove to inspect it. Replacing it early will help you maintain your maximum fuel economy.

Keep in mind that when your car was serviced before, parts may have been replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have, so be prepared with different size sockets and wrenches.

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If you're working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability.

Our vehicle may vary slightly from yours as models do change and evolve, as they grow older. If something seems different, let us know and share your info to help other users. Do you have questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.

The air filter element is located inside of the intake air housing (red arrow) in the center rear of the engine compartment.
Figure 1

The air filter element is located inside of the intake air housing (red arrow) in the center rear of the engine compartment. Fresh air is drawn through the bottom of the filter housing via an intake duct and flows out through the mass air flow sensor (green arrow).

Disconnect the mass airflow sensor electrical connector by pressing the release tab (red arrow) and pulling the connector straight out of the sensor.
Figure 2

Disconnect the mass airflow sensor electrical connector by pressing the release tab (red arrow) and pulling the connector straight out of the sensor.

Using a flathead screwdriver, loosen the mass airflow sensor duct clamp (red arrow).
Figure 3

Using a flathead screwdriver, loosen the mass airflow sensor duct clamp (red arrow).

Loosen the four T25 Torx fasteners from the intake air housing.
Figure 4

Loosen the four T25 Torx fasteners from the intake air housing.

Lift the intake air-housing lid up and detach the duct (red arrow) from the mass airflow sensor.
Figure 5

Lift the intake air-housing lid up and detach the duct (red arrow) from the mass airflow sensor.

Flip the intake air-housing lid over to expose the air filter.
Figure 6

Flip the intake air-housing lid over to expose the air filter. Then, loosen the hose clamp (red arrow) and pull the filter out of the housing. When installing the new filter, be sure the triangle on the filter (green arrow) is lined up with the slot (yellow arrow) on the filter housing. Once aligned, install the filter and tighten the clamp. Reassemble the intake air housing.

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Comments and Suggestions:
Tim Comments: If the JCW strut tower brace is installed, what's the best way to get the air filter box cover off? The strut tower brace crosses the engine bay almost directly over top of the air filter box.
June 4, 2016
  Followup from the Pelican Staff: Remove the brace. - Nick at Pelican Parts  
TwoMinis Comments: Where can I buy the 2008 filter box? I cannot find it anywhere.
April 3, 2016
  Followup from the Pelican Staff: From Pelican Parts.

Give our parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 

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