I opened the hood of my 2021 Mercedes Benz C43 and found this yellowish puffy stuff. All I know is it shouldn’t be there, but I have no idea what it is. Can anyone tell what that is? Thanks! [C43Fluff]

Can anyone tell what this is under the hood?

masa_deguchi_179132 January 18, 2022, 7:51pm 12

I meant a safe-for-human option.

03 Ram 1500 4.7 What is this Tube chewed by mice

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