Heated seat driver vs passenger.

[Q70sGuy]

I sat in my passenger seat for the first time and noticed that the heated seat was much quicker to heat up and got much hotter than my drivers seat.

I am curious if others have had that experience?

I’m thinking the heat exchanging unit (not the real name) wears out of over time but I don’t really understand how it works to begin with.

What do you all think?

[VStar650CL]

Do you have climate seats, or just heated? If they're climate seats, check the fan filter. If it's clogged the unit will perform badly, and it can even burn out the peltier elements or the control unit.

[Ilya]

This is my experience as well and I replace the filter every 30kmi or so. IMO my wife's QX60 ('16) seats are WAY better than my '11 M56x in heating and cooling.

[Q70sGuy]

Ilya, have you compared your own passenger vs driver seat?



Vstar, my model (Canadian 2015 q70s) does not have an easily removable filter. It’s just a circular mesh that’s right over the fan. I’ve seen other posts about the little square filter I believe but it’s not on my model.

The other question then is can that thermal unit actually wear out or be clogged itself.

It’s too cold so I guess I’ll have to wait for the summer

[VStar650CL]

The blower on your ride should have a removable filter right over the fan, p/n 87383-9N00A. The prices for them (even online) are ridiculous, but you can reuse the frame and glue in material from a washable foam air filter to make a washable replacement. If the filter is missing and the screen in the blower assembly is clogged, I suggest removing the blower (have zip ties handy because that's how the ducts attach to the blower) and blowing back through it with compressed air.

To answer your other question, when peltier elements fail they usually go short or open, so if yours are working at all then they're fine. However, without proper ventilation, eventually something will fail, either a peltier or the controller. So if you have a clog, I'd lay off using it until you can address that. Nothing in those climate seat systems is cheap to replace.

[Q70sGuy]

That’s right, it’s a crazy expensive “filter” and not easy to remove without removing the seat, unlike some other versions I’ve seen. I suppose once I get to working on the seat I’ll inspect all those elements.

I am fairly certain the thermal unit is working so far, and airflow when I have it in cooling is pretty good so I wasn’t suspecting blockage.

Thanks !

[Ilya]

Yes, it's a circular filter that can be found on RockAuto (https://www.rockauto.com/en/moreinfo.ph ... 6790&jsn=3) - Motorcraft FS100 is the model. Removing it is easy - just lift the seat all the way up and forward. Your hand should easily be able to rotate it slightly to remove it, then reinsert the same way.

I believe my driver seat is a little worse than passenger seat, but my driver seat is also used significantly more than my passenger seat.

[Q70sGuy]

Yeah that’s not what is under mine , there wouldn’t even be a place for it as the area is completely smooth and no way anything can clip on. I ll do some testing with a thermometer to compare the two seats though as I may also be imagining things

[VStar650CL]

Yeah that’s not what is under mine , there wouldn’t even be a place for it as the area is completely smooth and no way anything can clip on. I ll do some testing with a thermometer to compare the two seats though as I may also be imagining things

Maybe Canadian Q70's are different from USDM, but the USDM parts diagrams definitely show the filter @Ilya is referring to. So either it's missing from your driver's seat or there's a difference. The blower will be a little forward of the smooth escutcheon you're probably looking at, and may not be easily visible even with the seat elevated.

[anewstartinchrist]

Do you have climate seats, or just heated? If they're climate seats, check the fan filter. If it's clogged the unit will perform badly, and it can even burn out the peltier elements or the control unit.

I'm assuming the climate seats are the heated and cooled seats? How would one go about changing the filter? I have a 2012 M37x. I noticed this past summer that my ventilated seat function is nowhere near as strong as it was when I first bought my car a year ago.

[anewstartinchrist]

Just decided to do some digging since this thread got me curious on my car. Same part number for the filter from PartSouq as 87383-9N00A is $43.35. Looks like the same thing from the Rock Auto link too. Didn't realize there was a filter. Not sure how to get access to it other than by removing the seat like it was also mentioned above. I'm going to look for a video on this.

[VStar650CL]

You can definitely get at it without removing the seat, but because most Infiniti seats have a hard plastic escutcheon at the back of the seat frame, it can be very hard to see. Some Nissan Muranos and Maximas have a similar setup. Run the seat lift all the way to the top and run the seat forward on the rails until you have some working room on the rear floor. You can slide a mirror under the seat to eyeball the filter, but you'll probably need to remove and reinstall it by feel. If it's like the similar Nissans (and I'm pretty sure it is), you won't be able to eyeball it directly.

[AJ170]

I have a Canadian M37X, the seat filter is the same as American models, ive never seen a square filter unless it was after market

Also the filter used is the same filter used on a Ford F150 and costs $10 or $20 USD from Amazon for a new one, I have a detailed post about fixing ur seats and links to the cheaper filter along with pictures.

If you cant find the filter youre either not looking at the right spot or your seat is missing it and needs one ASAP before debris gets in.

AND my passenger seat is a TINY bit more powerful than my drivers seat, it used to be ALOT more powerful but that changed after I used q tips dipped in alcohol to clean the fan blades (remove filter to access fan blades) i did all of it without removing the seat, the trick is to move the seat all the way UP and BACK, NOT INTO THE DASH, AGAIN DO NOT SLIDE THE SEAT TOWRDS THE DASH, KEEP IT ALL THE WAY TO THE BACK SEAT.

[Q70sGuy]

Interesting I’ll have to check again then, I just recall there was no “easy” way to remove the filter. I’ll look for your post thanks

[Q70sGuy]

Sadly I checked again and it’s unlike what ive found online in pictures and videos.

Its just a big plastic cover and yes it does look like there’s a filter there but it looks like I have to undo a whole bunch of stuff to undo it because it’s molded into the ducting.

It’s not the type you can just twist off like I’ve seen…
https://imgur.com/a/isORmTp

[Ilya]

I think you're simply missing the filter. Someone probably removed them thinking it would help with the air flow.

[Q70sGuy]

From the videos and pictures I’ve seen, the circular filter comes off and it’s straight to the blower motor. But clearly I have something covering the filter. I’ll see if anyone recognizes this and tells me if there’s an easier way than pulling the seat to remove it lol

I posted a picture of it in my last post

[Q70sGuy]

I knew I wasn’t crazy , these guys in an FX forum have the same thing I do for a filter in their 2015. Just some mesh that isn’t so easy to remove as the usual filter.
Maybe Infiniti changed their design in 2015 for some reason. I do think I’ll find it will need cleaning if I ever manage to remove it lol… https://www.infinitiscene.com/threads/v ... ts.412144/

[VStar650CL]

From the videos and pictures I’ve seen, the circular filter comes off and it’s straight to the blower motor. But clearly I have something covering the filter. I’ll see if anyone recognizes this and tells me if there’s an easier way than pulling the seat to remove it lol

I posted a picture of it in my last post

Some of them do just have a mesh filter that's part of the fan. The easiest way to clean those is with a vacuum, because compressed air just blows some of the crap through. The best way is to pop the fan assembly loose from the ducts and blow from the inside out so you're cleaning the fan blades too, but that means unbolting and tipping the seat. Not a big job, but a lot bigger than a vacuum nozzle.

[Q70sGuy]

I forgot I could just tip the seat forward thank you, you just saved my crumbling lower back! it is pretty weird the FSM shows the easily removable circular filter in the parts diagram. I wonder how much dirt this kind of filter traps, it looks more like a dryers lint trap.

One more thing to do come spring time.