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2007 328i
19 Posts
Discussion Starter · #1 ·
Video of noise here:

It was low on coolant so I filled up the reservoir a bit under the max. I drove it around after fixing an electrical problem and everything seemed fine. It wasn't making this noise when it started up, but it has been sitting for a few months.

After about 10 minutes of light driving, it was making this sound once I parked it. It sounds like there is plastic inside the engine or something.

Anyone know what it is? Also, it's a hot day out but the heat coming from the engine seemed dangerously hot.

Thank you
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