Under the red circle, there is a plug that you can pull, that makes the fans come on @ high speed. Pull carefully, as sometimes the plastic is brittle.
(rectangular plug w/ 2 round holes).

Good Luck

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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