Air filter Mann or UGREEN

Mann, Mahle, and Hengst are the three biggest BMW OE air filter manufacturers. They all make a good filter.

2016 ST1, 205k miles, green filter and hood struts. That\u2019s it. Keep your oil changed, and there\u2019s nothing wrong with a little \u201cspirited\u201d driving here and there, that\u2019s what the car was built to do. They handle soo nice.

The only mods I ever did was a green air filter, symposer delete, and put in yellow led fog lights. It has only needed a few small things fixed, other than normal maintained stuff like fluid changes, brakes, tires, whatever.

Delete the sound symposer and get an aftermarket air filter. I\u2019m partial to the Green filter. Have had it for 100k and clean it every third oil change.

That one doesn\u2019t look too bad and it\u2019s a Mann filter. They\u2019re your go to brand for air, cabin, oil and fuel filters\u2026\u2026 they make them for bmw, bag and a bunch of others.

Just get the same MANN C22018 filter... It's $20

Like all diesels, they're all about air flow, so only use the big German air filters by Mann or Mahle in it. The more air you feed it, the better it will run.

Buy an aftermarket dry filter (Mann, Filtron etc.) and install that.

The OE filters are fantastic at efficiency in filtration over service life as they will filter smaller particles consistently. But they will clog rapidly and reduce overall flow to the point of producing a compromise in fueling. This shows up in the combustion efficiency and nitration numbers of a comprehensive oil analysis. I tend to stay away from the high flow "performance" filters and just change my OEs more often.

I see no benefit in spending more than $12-$16 on OEM supplier air filter (Mann, Heignst or what have you). Marketing can try their best but I just ain't buying it.