Hi.
Is there a way to drop the bottom part of the evaporator box? I have undone the two visible phillips screws in the front and took off the pressure clip. The box can be forced down a bit to take a look inside (its dirty) but I could not understand from looking at it what had to be undone to fully drop it. I want to take the chance my dash is out to fully clean the evaporator.

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I have also found the idea of adding a cabin filter wonderful, but that MANN code is for a Y61 specific filter, not available here. I would first have to find anything with close enough dimensions before committing on cutting the box.