Easy DIY how to: Clean or change the engine air filter on your Ford Focus with 2.0 Zetec engine. The car featured is a Mk1 but the procedure is much the same for other cars.
MAF cleaning video: https://youtu.be/pKyMziwa_TM
You will need:
* 8 mm socket and ratchet handle (preferred), large flat blade screw driver (alternative)
* Suggested: vacuum cleaner & rag
* If replacing – new air filter, recommended: paper element from reputable OEM supplier (avoid oiled types) to suit specific car. Try Amazon links:
US: http://amzn.to/2qLhAgn | UK: http://amzn.to/2rJGFpe
(Using the above links will support my channel and is appreciated!)