The procedure varies. Follow this previously posted thread for instructions on both the M3 and 330i. John from jersey posted nice intructions with pictures on the M3 and lilherc79 posted instruction on the 330i.
It's "slightly" different, as I did a joint oil change along with m3fan8ic's M3, the oil filter housing is completely different as the hex fitting on the top for the 325/330 is HUGE (don't remember the exact size, but at least 1" diameter I think) and connected to the cap of the filter housing while the M3 has an actual bolt that's removed and secures it. Word of advise, make sure that u've got the tools beforehand... we ended up making 5 trips to Walmart to get parts. :banghead:
One more thing, the M3 actually takes "less" oil than the regular 3-series, kinda surprised me but check your manual to make sure you've got enough, mine takes around 6.5 quarts.
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