My humming 530
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My Ride: 2005 530i
Alpine White/Beige Interior
Prem/Sat sound
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Within the first 3 -5 minutes of starting/driving my 530 it develops a humming sound that rise and falls in the same frequency and rhythm - it sounds like the hvac system - it is particularly apparent at idle.
It does not persist and goes away after some period beyond 5 monutes. Any ideas on what's messed up.
It does not persist and goes away after some period beyond 5 monutes. Any ideas on what's messed up.
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