[Latitude 28]

On our coach the Expansion valve is located behind the dash at floor level to the right of the gas pedal.  To gain access I had to remove the gas pedal, brake pedal (pedal only not the air valve) the backup camera display, the HWH control panel and passenger speaker to gain access.  Had to reach around by the gas pedal with my left arm and reach through the display opening with my right arm and look through the HWH control opening to replace the valve.  On ours it was doable yours may be a different beast all together.  I learned that Newell raises the whole dash and support it with short lengths of 2x4s.....to gain access on some coaches.  I have not seen that in person though.

https://newellgurus.com/showthread.php?t...sion+valve