Just a quick question, around town the heater works pretty well. Automatic climate control (I can't find any manual switches knobs or levers). 82 300TD The heat comes on and is toasty around town but on the highway it just blows luke warm cool. I'm wondering is there an outside cold air vent some where on the car I can just cover with card board, or manaully turn off?

I'm leaving to New Orleans tomorrow morning and am dreading the parka, gloves and hat on the freeway. Of course once I am there not really worried about the heater or the air conditioner to much, until about May, then I will be really concerned about AC. But that's in May.

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1982 300TD, Rescued from rusting away on Martha's Vinyard, roaming the highways again, this time with a saggy bottom... No SLS