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Odd sound?

438 Views 3 Replies 2 Participants Last post by  dpothier
Can anyone identify what this sound might be? I left my car running while grabbing some items from the grocery store, and came back to it making this odd sound. My first guess is that it was the parking brake, but I wasn't on any kind of incline/decline.

Any help is much appreciated!

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Mine has been making a similar sound recently! I’m 95% sure it’s the butterfly valve in the passenger side exhaust outlet in my case. I found a DTC code I think might be related (no lights or warnings in the dash) but haven’t confirmed.

Do you have a T6? You can see the valve if you shine a light in the passenger side exhaust.

2019 S60 T6 Inscription w/advanced & Polestar tune
Thank you for contributing. I reached out to the local dealer, and they mentioned that the valve is motor-driven and can fail. Sounds like you were correct! I'll keep an eye on it to see if continues.
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