Is your BMW E90 ready for a breath of fresh air? Changing the air filter is a quick and easy maintenance task that can make a big difference in your car’s performance. In this guide, we’ll walk you through each step of the process, whether you’re a seasoned DIYer or a first-time car enthusiast. Get ready to give your engine the clean air it needs—all without leaving your driveway!

Tools needed:

• 10mm socket
• Flat head screwdriver
• T25 torx

Step 1: Start by removing the x2 10mm bolts from the right side of the air filter box.

Step 2: With your screwdriver, slightly lift the plastic tab of your MAF sensor and pull back on the plug to remove it.

Step 3: Loosen the jubilee clip next to the MAF sensor. Then pull the flexible pipe away that connects to the front of the air box to remove it from the engine bay. Remember to ensure you have fully removed the hose with the jubilee clip when you’re pulling the box out.

Step 4: Remove the T25 torx screws that hold the box together to reveal the air filter.

Step 5: Replace your old filter with your new one. You may have a secondary filter too. If that filter looks dirty then it would be a good idea to replace that filter as well.

Full Video Installation