How to Change an Air Filter on a BMW 330

1. Locate the air filter cover on the top of your BMW 330 engine. It will be a black cover, secured by seven torx screws. You should see it near the center of the engine on top with a black flex hose running from the cover to the engine.
2. Remove torx screws with torx screwdriver from top cover of air filter. Lift the cover up. It will not come all the way out, just enough to give clearance to remove the air filter.
3. Unclip the flex hose from the air cleaner to provide room for removal. You will see a pin inserted into the air filter. Pull the pin back and remove the filter from the air cleaner.
4. Replace the air filter with a new filter by pulling the pin back and reinserting the new filter. Replace the flex hose on the front of the air cleaner.
5. Place the cover back on the air cleaner and secure it with torx screws.