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Discussion Starter #1
My 2018 3.0 xDrive has 20,000 miles. Last two cold starts (I’m down in Florida so it’s not cold) I heard a honking noise from the engine that lasted 10 seconds. It seems to be cause by some sort of vapor release.

Anyone having this issue?


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Discussion Starter #2
No faults found by dealer. Will need to monitor and see if the problem persists.


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these cars makes some of the strangest noises. We have a 2015 Toyota RAV4 as well. Either one of them can be sitting idle for hours and let out hisses, groans, motors whirring etc. No telling what your new noise is. Please post when and if you find the culprit.
 

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My G30 makes some strange noises on start up here and there. I have not taken it to the dealer since I can't pinpoint when it's going to happen. It's maybe 30 seconds of strangeness and then it's fine.
 

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Discussion Starter #6
I think it is my Active Grill getting stuck while trying to open. Need some warm weather in the Northeast to prove that out - it may be awhile.


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