Thread: DIY: Let's Replace the Cabin Filters
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      09-24-2013, 08:34 AM   #11
JonM
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Drives: E90 M3 Sedan
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Quote:
Originally Posted by Longbow64 View Post
Did mine the other day. Thanks for the link on Amazon. So just to confirm, when installed the filter arrows should point down?
Yes, point in the direction of air flow.
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