Despite using ac cleaners car smell keeps coming back. Even if you use something like kool-it you can still expect it to return.
The only way to remove the problem is get to the source and clean\replace the evaporator.
Is it only the evaporator that will have the dirt or which other parts of the hvac system need replacing?
If I just remove the evaporator and do not put it back, does that mean I should no longer get any smell problems?
I think the Ac is used to clean the windscreen sometimes right? So if the evaporator is moved, how will you accomplish that now?