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Weird sound after ignition off

6K views 8 replies 7 participants last post by  cvipgo 
#1 ·
Don't know if this is normal and I never notice it before on the bimmer.

With the Q50, after ignition is off, I can hear odd 'cracking' static sounds from the car (outside) like metal is expanding, etc.

Anybody noticing this? this would go on for a few minutes.
 
#5 ·
That sounds like it could be the exhaust contracting.

I notice that on my 12 (very similar exhaust structure), it drives the mrs nuts when she hears it in the garage and did not want to believe me until her last two loaners did the same thing.
 
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