2012 Corolla, most of the cabin filters I've used I've installed with the air flow direction arrow pointed down. I picked up a microgard cabin filter and it says install with the arrow up, the instructions are toyota specific with pictures. I went ahead and installed with arrow pointed up. Just confusing.
Cabin filter airflow direction question
- Thread starter Corollaman
- Start date
The arrow is supposed to show airflow direction. So the arrow should point towards the air exit, right?
2012 Corolla Cabin Air Filter
2012 Corolla Cabin Air Filter
That's what I thought but the instructions state install filter with arrow up which makes me think it's not an air flow indicator.
Or the documentation is wrong? I would point it down...
Good luck.
The stock toyota cabin filters are installed with the arrow up, it's in the owner's manual. The microgard is the first after market one I've seen that's says to install with arrow up, also the microgard dosen't say "airflow" next to the arrow like other filters.
Serious question. Does it make a difference?
I sure don't see how it could make a whole lot of difference.
towards blower motor .Man, you need to change your AF more often, that looks real ugly.
Looks right
Looks like you installed it correctly. Up means up. This is all very confusing because most manufacturers say to install according to airflow, which would be down. Seems like there should be an industry standard on arrow direction for cabin filters but what do I know.
Is this a serious question?? Air comes from outside of the car and flows IN. Which way should the arrow point? And in the end, other than a carbon filter, It doesn’t matter. Sheesh
The arrow will come with 2 type of wording, one will just say up and the other will say airflow. For the first one, it means just show which side need to be up (does not refer to airflow), and the second one will refer what the airflow to be (typically will be downward to the evaporator). So no need to be confused, just see which word is printed on your cabin filter.
This is correct, because it only say up, so the filter should face up like shown on the picture
Wait this is funny....the manufacture of the filter instructs how to install their product and some of you are saying that the manufacture is wrong.
So why would the OP ever contact the manufacture and confirm the installation instruction or return it for one that meets everyones method of how every cabin filter should be installed!
So why would the OP ever contact the manufacture and confirm the installation instruction or return it for one that meets everyones method of how every cabin filter should be installed!
Let me tell you about arrows and instruction and the logic here about the direction of flow. I dropped a product I engineered with a hand painted RED arrow indicating the direction of air flow. With a warning installing it incorrectly could damage the valve and may cause engine problems. After first replacing destroyed incorrectly installed valves from several DIY and even 3 service shops and several courtesy warranties valves because of installation error both myself and my marketer agreed most people can not follow simple instructions. I mean how hard can it be to follow the manufactures instructions . So I completely stopped manufacturing them and pulled them from my line of other performance parts .Wait this is funny....the manufacture of the filter instructs how to install their product and some of you are saying that the manufacture is wrong.
So why would the OP ever contact the manufacture and confirm the installation instruction or return it for one that meets everyones method of how every cabin filter should be installed!
Some cabin filter containment boxes will only fit correctly in one direction. Unfortunately many think it does not matter and will install them in anyway not realizing they are not actually sealing as designed. Or assuming what the arrow means regarding installation.
So yes and arrow may be indicating to top of the filter and not the airflow. Another example of redesign the installation instructions .
