What is white plastic tank under the air filter for?

Asked by cowry Apr 10, 2015 at 12:44 PM about the 2015 Subaru Forester 2.5i

Question type: General

Just noticed that underneath the air filter in my 2015 Forester, there is a large white plastic tank, similar in appearance to the windshield and coolant tanks.  What is it exactly?  I can't find any mention of it in the owner's manual.  Just curious.

2 Answers
145

skatefreak162 answered 9 years ago

I think that's just to catch any fluid that happens to get into the air filter. That's a different way of doing it, but if it ain't broke don't fix it.

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70

GuruHNPSH answered 4 years ago

Nope! that's for part of tuning the air intake system. Its for resonance and noise . If you have the turbo it cuts the high pitch whine . If not it still deadens the sound entering the cabin

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