View Full Version : new air filter
10-26-2008, 09:48 PM
i had another question, i dont know much about cars, but would a new air filter improve my mpg and hp??
bimmer dot info
10-27-2008, 08:33 AM
It will not hurt.
It really depends on how dirty it is. They are fairly cheap and easy to replace.
10-29-2008, 12:07 AM
thanks, i will probably do it then
10-29-2008, 02:44 PM
Read an arcane article that said that even with a dirty airfilter, the various sensors on the BMW, most notably the oxygen sensor, would sense the eventual decline in air reaching the engine and compensate. So much for arcane articles. I'm in agreement with the last post and change it. Can't hurt, only help, and they look very snazzy when new. Filters are cheap, cheap insurance.
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