If you have to replace the evaporator, I'll 2nd that is not difficult if you are patient; just time very time consuming.

The manuals seem to indicate that the steering wheel needs to be removed; however, I could not get the bolt loose on mine, and had no problem removing the dash with the steering wheel in place.

__________________
as ever
Paul

1989 560SL
1987 300SDL
1987 300TD
1983 BMW 633CSi
1972 280SE 4.5