Hello NAM,

What is the noise at 0:06 of this video, starting this 2008 R56 Justa with ~45k miles?


It usually does it when the car has not been started for some time (sometimes it doesn't do it, and never does it if there's any warmth in the engine), is louder/more frequent when it's cold out (as it is now).

Searched and read through many threads from the past 10 years, but descriptions on the internet are tough and couldn't find a smoking gun video.

Thanks!

 

No idea what it is, but my wife's 2013 Justa Convertible R57 (N16) makes the same noise on cold starts, also on first start after I change the oil and filter. Always has since we've owned it, bought used at 21k miles and now at almost 100k. I am guessing it's air in the oil pump being purged, but not sure.

 

There's a technical advisory (SI M 11 02 07) that has this:

"A one-off short shrill will be heard within the first two seconds of engine operation. This is an inherent noise caused by the first regulation cycle of the engine oil pump. This is normal operation and no parts should be replaced."

So I guess that's what this sound is. This is the gap that exists between the written word and real-world sound.

I'm now imaging trying to sell the car, explaining "That's normal! Trust me!!!"