[oragex]

If my memory is still good, it's from the rear of the car towards the front of it - so the first video would be the correct one. You can also look with a flashlight to find the hole that goes inside the CCM. Does the new filter have an 'angle' at the top end ? That would also force it to fit only one way because the other way it won't go all the way in

Funny enough, my thin Mann filter didn't fit well inside the front slot (the one towards the rear of the car), so I put it into the wider slot for the AQS filter (my car has the air quality sensor). Perhaps that's why your old thin filter was in the larger slot as well.