The Fiat 500 uses a drop in cartridge type oil filter. Cartridge (or replaceable element) filters are growing in popularity as they are easier on the environment, and are generally less expensive. All Fiat 500s use the same oil filter, whether normally aspirated or turbocharged. The original equipment oil filter for the Fiat 500 is part number 68102241AA and generally runs about $8 from a Fiat dealer. They can also be purchased from any Chrysler dealer as most keep them in stock to service Dodge Darts with the 1.4L MultiAir Turbo engine. Aftermarket oil filters typically cost between $6 and $20 depending on the manufacturer.
Here is a list of oil filters that fit the Fiat 500, 500L and 500 Abarth.Fiat/Mopar 68102241AA
Beck Arnley 041-0856
Mahle OX 371 D
Mann HU 713/1X
Important: When performing an engine oil change, the oil filter cap must be removed. Removing the oil filter cap releases oil held within the oil filter cavity and allows it to drain into the sump. Failure to remove the cap prior to reinstallation of the drain plug will not allow complete draining of the used engine oil.
Below are some images and hints on how to change the oil filter on your Fiat 500.
All Fiat 500s have an oil filter cartridge contained in an oil filter housing on the front of the engine. There is a oil cooler underneath the housing.
Use a 27 mm or 1 1/16 socket to remove the oil filter housing cap.
The location is tight. Having a ratchet extension and a swivel joint may make it easier to access and remove the cap.
This is the oil filter housing cap. It is a composite material, so you need to be careful how you handle it. Here I am removing the oil filter cap O-ring, which your new filter should come with. Make sure it does because you should not reuse your old o-ring. Also don't use something sharp to remove the o-ring because it is easy to scratch or damage the threads on the cap. These pieces can later break off or cause other troubles down the road.
Here is a look at the hex head on the oil filter housing cap. Use the correct tool and not channel locks, pliers or vice grips. The oil filter cap for a Fiat 500 Abarth is part number 04892850AA and costs about $32. If you break it you will not find it at a local part store, so be careful.
The new oil filter snaps into the cap so you can turn it upside down and it won't fall out. Important: Screw the cover on all the way by hand. Press down on it to overcome the spring pressure and turn it until it firmly stops. Tighten to 25 N·m (18 ft. lbs.).
If you don't have a torque wrench or can't fit it into the tight area, snug the filter with the ratchet you used. Don't overdo it.