If you pull the instrument cluster you will have more than enough room to work, plus have easy access to the left side retaining nut. It is an easy 8 hour shop job, but it can be done at home over a weekend. Try doing a search using the search function on "108 heater levers" there are a number of posts about how a few of us accomplished this task.

In my case I removed the complete assembly and rebuilt using FEBI levers. Steve touched on the hardest part, the part about the cables. Pay close attention how they are routed - they have to be routed that way. I, in my infinite wisdom decided that the cables needed to be rerouted for a clean install. WRONG! I couldn't move the new levers. Routed the cables back in their original position and everything worked fine.

__________________
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.