Originally Posted by mschepis
Has anyone changed their own cabin air filter, if so, does the hinged door that protects the filter have a closure latch or is it simply gravity that holds it down once rotated into place?
IMPORTANT: Please ensure that the vehicle is in recirculate mode. If not, you will force open the computer controled damper and damage the HVAC system.
We just replaced one for a customer at the tune of $2000.00 damage from not having the recirculate mode on.
It is extremely important to follow this process on all newer 2nd gen models inclusing the IS350. As I do not own one of these vehicles, nor do I know the differences between IS250 or IS350 HVAC systems.
Here is some steps to help you.
This is from an ES350, so your HVAC control panel may look different.
Recirculate turned on, then shut the car off - I think two taps or one on the start button or key off.
Empty your glove box to reveal access door - The IS250/350 should be an "L" shaped access door - apply slight finger pressure sliding to the left and then slide up
See Picture on the left
Once the first "L" shaped door is removed it will reveal the second door
Slide up, using slight finger pressure - prongs are on the bottom, once up it should just pull out and away
Stop! If you now see a third door blocking the way - you do not have the HVAC system in recirculate mode - If this door is forced - this is where the damage will happen
Proceed! If you have a clear veiw of the filter and basket
Should now reveal the filter cover or end cap or filter basket- This now needs removal.
See exact example below for the IS250/350 - Picture on the left side
You should now be able to remove your Cabin Filter by pulling out of the basket
Note the position of the filter, when removing to ensure you put the new one back in the same way. The filter will also be marked with an arrow point "UP" and physicaly state "UP". The ES350 did not have a basket, yours probably does.
See pictured below on the left side for IS250/ 350
Re-assemble in reverse order