How to Replace BMW E92 335i Airfilter [N54]

Replacing the N54 airfilter is such an easy job, most people would question this guide's existence entirely...

My thinking is, if I can stop even one person being overcharged at a dealers for this job, then it'll be worth writing up.


This post may contain affiliate links. Please read my disclosure for more info.

Tools / Parts Required

• K&N Panel Air Filter (33-2367)
• Vacuum (optional)
• Rag (optional)

Disclaimer: Any information given in this guide is to be used at the readers own risk. I take no responsibility for injuries to the reader or damage to their vehicles. If this guide is followed correctly, no harm should occur to either the reader or the car.

Please read through the entirety of this guide prior to undertaking any work, and do take care when following this guide.

Step 1

Tip: If you've just been driving, give it 30 mins before swapping the air filter, the metal clips can get pretty hot.

Pop the bonnet and locate the 5 clips on the standard air filter housing. Disengage all of the clips by flicking the top of the clip outward, away from the housing.

Step 2

With all the clips disengaged, the top of the housing should just lift away, revealing the air filter (which just lifts out too). It's at this point I'd recommend you vacuum out the air filter housing if there is any dirt in there, flies, leaves etc. Use the rag to wipe any dust away.

Step 3

Refit is just a reversal of step 1 and 2, just make sure the filter is seated correctly in the housing before clipping the top of the housing back on.