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: Volkswagen Polo MK IV, Polo 4, 9N, MK 4, Polo IV - Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Part: Air filter

See other generations:
Video tutorial

Cleaning the engine air filter is absolutely essential for the proper functioning of the engine, ensuring the right amount of air is supplied, but especially its cleanliness: the filter can trap solid particles that, if ingested, could damage the engine.

The filter housing is located at the top of the engine: simply unscrew the fastening screws of the cover, remove the old filter, clean any dirt residue inside the housing, and insert the new one ensuring the gasket adheres correctly.

In addition to replacement, it is also good practice to dust the filter occasionally.


Updated on 12 February 2026 by ScegliAuto


Related tutorials

Engine Air Filter Replacement
Engine Air Filter Replacement
Volkswagen Polo (2001-2009 / MK IV, Polo 4, 9N, MK 4, Polo IV) The engine air filter housing (air box) is located right next to the front shock absorber strut: unscrew the fastening screws of the cover (just loos…
How to Replace the Air Filter and Cabin Filter in the VW Polo
How to Replace the Air Filter and Cabin Filter in the VW Polo
Volkswagen Polo (2001-2009 / MK IV, Polo 4, 9N, MK 4, Polo IV) This guide explains how to replace the air filter and cabin filter in the Volkswagen Polo model 9N. To replace the air filter, open the front bonnet …
Replacing the Air Filter on a Volkswagen Polo
Replacing the Air Filter on a Volkswagen Polo
Volkswagen Polo (2001-2009 / MK IV, Polo 4, 9N, MK 4, Polo IV) If you need to replace the air filter on this model of car, the description below will provide all the steps and methods to follow for a correct repl…

How to Replace the Glow Plugs in the Fiat Ducato 2.3 Multijet?

Glow plugs, as the name suggests, raise the temperature of the engine in diesel vehicles to allow for easier starting. The manufacturer, in this case, Fiat for the Ducato 2.3 Multijet, specifies how often they should be replaced, and a warning light will illuminate when it's time. This work is carried out under the bonnet. First, remove the upper engine cover, then lift the coil and, using a socket wrench of the appropriate size, unscrew the glow plug to remove it from the base, followed by installing the new one.

Watch the video!


by ScegliAuto

More videos