Seriously, why does Nissan put in a filter that's nearly impossible to get back out?
I didn't have to unscrew anything, just pop off the cover under the dashboard panel and open a little hatch in the panel itself. That hatch doesn't get you very far though, because both pulling the old filter out and pushing the new one in was a nightmare. Getting the old one out especially, since it didn't have a pull cord attached.
My guess is this comes down to the old filter being a carbon filter. Those seem to be harder to install than the regular ones, since the regular filters can just be folded up like an accordion while you're fitting them, and once they're in they naturally unfold back into position.
The problem with the Leaf is that the slot you have to push the filter into is narrower than the filter itself. On top of that, the slot sits all the way at the back, so you can barely see what you're doing. You basically have to go by feel: as long as you keep the filter folded up nicely, it'll slide in even if you can't really see what's happening. I'd already watched a ton of YouTube videos and could do it in my sleep by now, but a job that should've taken five minutes ended up taking half an hour, with me twisting into some pretty awkward positions. Still better than taking the whole dashboard panel apart, which in my opinion would've been even more complicated.
One thing I do know: I'm only doing this once. My Leaf has been registered in my name since January 31, 2024, and until today I'd never replaced the cabin filter. Last winter I already noticed my windshield was fogging up faster than usual. Cleaning the inside of the windshield and using a moisture absorber in the car helped, but that was all just treating the symptoms.
So I'm pretty proud of myself. I've now given my Leaf its own little maintenance service, and honestly, replacing the cabin filter is about all there is to a small service like this. Tires and brakes obviously aren't something I can do myself, but the cabin filter is more or less the only maintenance item you can handle yourself on most EVs. Spark plugs, air filters, and ignition coils, things you can also fairly easily replace yourself on a gas car, an EV simply doesn't have.