Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Engine Air Filter Replacement

Model: Ford Focus MK 3 - Years 2011-2018
Part: Air filter

The air filter housing is located inside the engine bay, just behind the driver’s side headlamp; unscrew the fixing screws of the filter box cover, remove it, and extract the filter from its seat. Clean the filter box of any debris, taking care not to let any enter the intake duct (avoid shaking the filter directly above the box as shown in the video).
Then insert the new filter (or blow out the old one with compressed air) ensuring the central fitting adheres correctly to its support. Finally, reposition the cap and tighten the respective fixing screws.

Updated on 11 February 2026 by ScegliAuto

Video tutorial

Related tutorials

Replacing the Air Filter on a Focus
Replacing the Air Filter on a Focus
Ford Focus (2004-2011 / MK 2, Focus 2) Let’s look at replacing the engine air filter on a Focus. To replace the air filter, lift the front bonnet where it is located. Raise the front bonne…
How to Remove the Air Filter on a Ford Focus
How to Remove the Air Filter on a Ford Focus
Ford Focus (2011-2018 / MK 3) Need to replace the air filter on a Ford Focus? Here's how to change it. Open the front bonnet, then unscrew the securing screws around the plastics …
How to Replace the Engine Air Filter on Ford Focus SW
How to Replace the Engine Air Filter on Ford Focus SW
Ford Focus (2011-2018 / MK 3) How to replace the engine air filter on Ford Focus SW? Follow these steps: Open the car door, pull up the engine compartment release lever located at…

Other guides you may be interested in

How to Replace the Diesel Filter of the Peugeot 3008 1.5 BlueHDI

Briefly, we will see the main instructions for dismantling and replacing the diesel filter of the Peugeot 3008 1.5 BlueHDI. First, locate the diesel filter under the vehicle, so it will be necessary to lift it; then disconnect the electrical connector and the fuel lines from the filter, unscrewing the side screws to remove the cartridge, as shown in the video. At this point, replace the diesel filter with the new one, as well as with the original one; then reconnect the pipes and the electrical connector, following the video tutorial to the end!

Watch the video!


by ScegliAuto

More videos