If the climate control pushbutton unit is removed, all you will get is hot air out the defrost vents all the time, nothing else is gonna work.

Where is the original unit?

Peter

__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!