On your 300E Gilles......if you remove the lower windshield cover...do what I did.
I don't smoke or have anyone in the car smoke.
I pulled the RECIRC flap all the way closed. You first have to screw in a screw through the flap so you can hold the door flap closed with Vise Grips on the screw....Using some self tapping screws with large repair washers, I drilled into the flap near the edge so the washers caught the side of the box holding the RECIRC door shut.
Now it chills like a meat locker ! Only problem was, misting on the outside of windshield as it got cold, so I blocked the upper vents with a length of black tubing.
Vent temps at 90 plus ambient within a few minutes, 39F at medium blower speed.
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