The intakes on the outside? Open the hood, and unscrew the trim piece. Discover that there are remnants of 2 filters there. Use a vacuum. The interior vents I've never bothered with.

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D