What is that? [Archive] - Bimmerfest - BMW Forums

: What is that?

03-03-2007, 10:31 AM
just got my certified pre-owned 2004 bmw 530i yesterday. i open he door and i hear a low pitch humming/ buzzing sound in the engine compartment which eventually goes off. after i drive the vehicle and lock the doors, the low pitch humming/ buzzing sound turns back on. the noise eventually turns off by itself. is this something to be concerned about or is this a typical thing?

03-03-2007, 11:32 AM
Its typical.

Rubber Ducky
03-03-2007, 02:25 PM
Its typical.
Elves. All BMWs have them. Leave a basin of beer and some peanuts under your car at night if you expect to run well.