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Fiat 500 Engine Air Filter Replacement Guide
How to clean or change the engine air filter element in a 2008 to 2015 Fiat 500 equipped with the MultiAir 1.4L I4 motor.

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2015 Fiat 500 Air Box
Three Screws - Top Edge
Loosen Counterclockwise
This automotive maintenance tutorial was specifically written to assist owners of the "new" Type 312 (2008, 2009, 2010, 2011, 2012, 2013, 2014 and 2015) Fiat 500 hatchback supermini car in cleaning or changing the engine air filter element for the naturally aspirated MultiAir 1.4 liter inline four cylinder motor.

Owners of other Fiat, Alfa Romeo, Chrysler, Dodge, Jeep and RAM vehicles such as the 4C, Giulia, 200, 300, Town & Country, Challenger, Charger, Dart, Durango, Journey, Grand Caravan, Compass, Grand Cherokee, Wrangler, Renegade, Cherokee, Patriot, 1500, C/V Tradesman and ProMaster may also find these DIY instructions to be helpful.

A few compatible replacement engine air filters with their part numbers are as follows: Fram CA11109, K&N 33-2471, Ecogard XA6183, Wix # 49048, Mahle Original LX 3571 and Hastings AF1558.

The only tools needed to access and replace the filter are an 8mm socket and a 1/4" drive ratchet.

8mm Screw Removed
Loosen Counterclockwise
Third 8mm Screw
The rectangular shaped black plastic engine air box is located on the front of the engine with the air intake tube on the right (driver) side of the engine bay.

Loosen the three screws along the top edge of the air box by turning them counterclockwise with the 8mm socket attached to a short extension bar and a 1/4" drive ratcheting wrench.

(If necessary, you may also use a Phillips head screwdriver or a flathead screwdriver to loosen the screws. All though I would not recommend that since the screws are soft metal and might strip easily.)

Set the three screws aside in a safe place.

Pull Off Air Box Cover
Old Filter In Air Box
Air Intake Hose Separated
Gently pull the air box cover up and away from the front of the engine.

Turn over the air box cover to access the old filter.

The air filter housing might separate from the air intake hose. It can easily be re-attached later.

Remove Old Filter From Box
Inspect Both Sides
After 15,000 Miles
Pull the old air filter out of the air box cover.

Inspect both sides of the old air filter.

If the old filter is dark grey or black and clogged with dirt, dust, hair, pollen, insects, leaves, twigs and other debris, it should be replaced with a new element.

I recommend buying the Fram CA11109 engine air filter since it has great reviews on Amazon.


Clean With Vacuum
Insert New Filter
Re-Attach Air Intake Hose
If the old filter is relatively clean, just tap out the large debris and remove any fine dust with a vacuum.

Lower the new filter in to the air box cover with the pleats facing down and the rubber gasket facing up towards you.

Push the air intake hose back on to the right side of the air box cover.

Line Up Tabs & Slots
Push On Air Box Cover
Tighten 1st 8mm Screw
Line up the tabs on the bottom of the air box cover with the slots on the air box housing.

Push the air box cover back in to place.

Rotate 8mm Clockwise
Tighten 3rd Screw
Engine Filter Replaced
Re-insert the three 8mm screws and tighten them in the clockwise direction until they are snug.

Try to avoid over tightening the screws to prevent from cracking the plastic air box cover.

Double check that the air box cover is flush against the engine with no parts of the new filter visible.

For more, check out my other 2008-2015 Fiat 500 DIY Repair & Maintenance Guides.

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