Are you referring to temp control arm behind false firewall as that is only arm in a/c heating system on the 164? Air drum that changes air flow from dash to floor to defrost is keyed to front stepper motor on LHD models and has no lever so to repair IAW Alfa 164 TSB 80.94.01 you must follow these directions to access it Alfa 164 TSB 80.93.02
Is this what you mean?
If you mean temp door lever then you have to do this to access it
Search for blower motor change info. Bob and I have posted text and pictures on how to do it on this forum http://www.lexingtonma.net/users/BobC/blower.php
http://www.alfabb.com/bb/forums/showthread.php?t=36850&highlight=blower+motor
and www.alfaBB.com
Is this what you mean?
If you mean temp door lever then you have to do this to access it
Search for blower motor change info. Bob and I have posted text and pictures on how to do it on this forum http://www.lexingtonma.net/users/BobC/blower.php
http://www.alfabb.com/bb/forums/showthread.php?t=36850&highlight=blower+motor
and www.alfaBB.com