Do it yourself
Frequently asked questions about cars and motorcycles

Engine Air Filter Replacement

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

This video shows the removal and replacement of the engine air filter on a Ford Focus. After opening the bonnet, first remove the four 8 mm bolts that secure the air box cover. Once the box is open, remove the old filter by disconnecting it from the air tube. To position the new one, use the plastic tab on one side of the filter as a reference point and its location in the box; it should then be reattached in the same position as the one just replaced. At this point, you can close the box.

Updated on 10 February 2026 by ScegliAuto

Video tutorial

Related tutorials

Ford Focus (2004-2011 / Focus 2, MK 2) Let's see the replacement of the engine air filter of a Focus. To replace the Focus air filter we have to lift the front hood where it is positioned.…
Ford Focus (1998-2004 / MK 1) Replacing the engine air filter is extremely simple as the filter housing (air box) is clearly visible and accessible; therefore, unscrew the fasteni…
Ford Focus (1998-2004 / MK 1) The cabin air filter is located in the engine compartment, just below the windscreen, in a roughly central position: remove the plastic protection gr…

Other guides you may be interested in

How to Replace the Timing Belt on the BMW X3

Unlatch and lift the hood, then you will need to remove all the parts above the area where you will be working. As shown in the video, you can remove the screws to take off the upper panels. Now you need to remove the air filter cover from the engine. In any case, you will need to remove all obstructing parts until you reach the belt. In the diagram, you can see which pulley acts as the tensioner, so loosen it to remove the belt. Once the tension is off the belt, you can take it out and replace it without issues. Retrace the steps in reverse for reassembly of the various components.

Watch the video!


by ScegliAuto

More videos