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      07-02-2022, 06:38 PM   #1
rastaman777
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United_States
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Drives: 2020 i8 coupe,2019x5,2019 740i
Join Date: Sep 2015
Location: NY

iTrader: (0)

Air compressor noise

Hello all,

Considering buying my 2020 i8 coupe at lease end.
My big concern is this whole air compressor issue.
This is my second i8, my first was a 2016 that never made of these concerning sounds while charging.
This i8 however, has been consistently making a weird sound when charging. I have attached an audio file of the sound.

For the last 2.5 years, it would reliably make that sound.
The last 2-3 months however, I have been unable to get the sound to come back. Now, it is completely silent.
I'm assuming that maybe I'm not getting the battery hot enough to require the cooling system to turn on? It's strange, as I'll come back from a 3 hour road trip, using exclusively the battery for the last 20 miles, which previously has always resulted in the fans/cooling system to turn on when plugged in.

So, I guess there's two questions:
1. Is this suspicious for a faulty compressor?
2. Why can I not reproduce the sign sound anymore?

I have spoken with the dealer. They are aware of this issue, and have had this problem on a hybrid SUV - I can't recall which model.

The mechanic suggested perhaps a faulty fan on my i8, since at present there is no sound at all, but would have expected to throw a code if the fan was out.

Thanks for the help!
Appreciate 0