I thought I'd start with an easy one to warm myself up.
First, here's the lovely engine bay of my new car:
The air filter assembly is on the right.
Here's the new filter:
First job is to disconnect the hose to the engine:
Then Remove the screws holding the air flow meter in place:
Then remove the airflow meter to reveal the yucky old filter:
Here's a comparison of the two filters:
And here's the new filter in place:
Then it's just a case of putting it all back together again. Job done!