Dan is an experienced motoring journalist who has more than 20 years of experience. He has been the editor of titles such as Fast Ford and Redline, and his latest project was converting an old Renault Trafic into a family campervan.
All cars have an air filter, and as you've probably already guessed its job is to filter out dust, debris and particles that could otherwise damage the engine if they got sucked into it. They are commonly situated in a large plastic box to one side of the engine bay between the air inlet and...