There are 3 screws at the top, the quarter-turn, plastic lock at the center console, and another screw on a small bracket protruding from the outside kick panel. There is also a screw in the middle, holding the two under-dash panels together. So that's 5 screws and a quarter-turn lock.

Once those panels are out, there are 4 screws holding the fan in place.

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Sam

84 300SD 350K+ miles ( Blue Belle )