It depends on the engine, but most 2015 Focus models have the oil filter located on the underside of the engine near the front, accessible from beneath; some EcoBoost engines use a cartridge in a side housing that may require access from the engine bay.
Understanding the 2015 Focus engines and filter location
Ford offered several powertrain options for the 2015 Focus across different markets. Because the exact location can vary by engine code, it helps to know which engine your car has. The two most common configurations are a traditional spin-on oil filter on the engine block and a cartridge-type filter inside a side-mounted housing.
Spin-on oil filter (typical for many 2.0L Duratec-powered Focus models)
In many 2015 Focus models equipped with the 2.0-liter Duratec I-4, the oil filter is a conventional spin-on canister. It is mounted on the lower front/side of the engine block, near the oil pan, and is typically accessed from underneath the vehicle after removing the front splash shield or undertray. This makes the filter easy to remove with a standard oil-filter wrench once you have the car safely raised and supported.
- Raise the vehicle safely and remove the front undertray or splash shield to gain access to the underside of the engine.
- Locate the cylindrical spin-on oil filter attached to the engine block near the oil pan.
- Prepare your tools: an oil drain pan, a filter wrench, and new oil and gasket as applicable.
Before you begin the list, note that you’ll usually need to:
Using the spin-on style, you simply loosen the old filter, let the oil drain, and install the new filter with a fresh gasket, followed by a brief start-up to check for leaks.
Concluding this section, for Focus models with the 2.0L Duratec engine, expect the filter to be a visible, cylindrical canister on the lower front/side of the engine, accessible from below once the undertray is removed.
Cartridge-type oil filter (used on some EcoBoost and other variants)
Some 2015 Focus versions, particularly EcoBoost configurations, use a cartridge-style oil filter housed in a plastic or metal side assembly on the engine. This type is not a visible spin-on canister; instead, you remove the end cap or housing to replace the filter element inside. Access may require removing the engine cover or components in the surrounding area to reach the housing.
- Identify the cartridge housing on the side of the engine block, often near the valve cover or along the side where a black plastic cap sits.
- Have the correct replacement cartridge and a tool suitable for the cap if needed (some designs use a standard cap wrench or a specific tool specified by Ford).
- Replace the cartridge and reseat the cap or housing, then check for leaks after refilling oil.
Before listing the steps, keep in mind:
In practice, if your 2015 Focus uses a cartridge filter, you’ll experience a different replacement procedure than with a spin-on filter, and the exact approach depends on the engine code and market specification.
What to do if you’re unsure of your engine type
If you aren’t sure which engine your Focus has, check the vehicle identification label under the hood or in the owner's manual for the exact engine code. You can also open the hood and look for clues: a visible spin-on canister near the front of the engine or a plastic side cartridge housing with a cap. When in doubt, consult a service manual or contact a Ford dealer or qualified mechanic to confirm the correct oil filter type and replacement procedure for your specific model year and market.
Summary
The 2015 Ford Focus can have different oil filter configurations depending on the engine. The common possibilities are a spin-on filter mounted on the lower front/side of the engine block (accessible from underneath) or a cartridge-type filter housed in a side assembly (accessible from the engine bay). To be sure, identify your engine code and consult the owner's manual or a repair guide for the exact location and replacement steps. Always follow safe lifting procedures and use the correct filter type for your engine.