i have a 1992 100cs whose climate control unit lcd is screwed up and
unreadable. it is still functional and controls everything, you just can't
read it.

i found one on ebay from a 1993 audi 90 which looks identical to theone on
my car.

first off will that one work with my car and...

second, is it easy to replace those or is there calibration/reset stuff to
worry about?

any help is appreciated.


THANKS