Quote:
Originally Posted by F87source
My car makes the exact same sound especially when parked for longer periods of time, I always thought it was the HPFP priming especially since day 1 and a bit of looking online, but that doesn't really make sense because the HPFP is driven off of the cam which wouldn't be able to move without the engine being on. So maybe if it is HPFP related the vanos unit would be trying to prime it by actuating idk. But now I'm worried and probably should have it looked at.
BTW: Did the sound ever come back after the dealership serviced it?
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Nope, the noise is gone and hasn't come back so it leads me to believe the sound wasn't normal from the get go.