In Reply to: ~~~ENGINE SOUND CHANGE AFTER 4K MILES~~~ posted by 323iT on October 19, 1999 at 01:00:37:
Are you certain its the engine sound and not the exhaust sound?
In most new cars the exhaust sound changes, usually deeper than what it was new. Also, have you checked your oil level lately? Might not be the cause but being low on the oil can change the sound of your engine, enough so that you can hear the difference.
: My 323i engine sounds different the past few days. Does any body know if the engine sound change after how many miles??? I hit 4000