| cycler15 |
| I've noticed that when using the heater, hot air only blows out of the side vents, not the middle ones. Is this normal? |
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| quintin |
| I think heat will only come out of the side vents, floor vents and defroster vents. |
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| jatharp |
| ON my 02 mdx that is the way mine works |
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| Fabvsix |
Whn you chose defroster, then only hot air blows out the side vents, floor and defroster vents located on the dash board. When you chose "auto" then it will blow in your FACE. Do you really want hot air in your face ? If you leave it in that mode, expect your windows to start fogging up !
Hope this helps ! |
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| DaleB |
quote:
Originally posted by Fabvsix
Whn you chose defroster, then only hot air blows out the side vents, floor and defroster vents located on the dash board. When you chose "auto" then it will blow in your FACE. Do you really want hot air in your face ? If you leave it in that mode, expect your windows to start fogging up !
Hope this helps !
I have mine on Auto all the time. Never get any air from the center vents unless it goes into a cooling mode. Warm air from bottom and sides only. And I guess the windshield. Never reached over to check that. Will do it today. |
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| BaldEagle |
quote:
Originally posted by DaleB
I have mine on Auto all the time. Never get any air from the center vents unless it goes into a cooling mode. Warm air from bottom and sides only. And I guess the windshield. Never reached over to check that. Will do it today.
Yep. That's the way mine and my son-in-laws 2003 works.
Last year I did some minor wiring work in the MDX (installed 12 volt always on socket) and then noticed that hot air was not coming out of the center vents. Thought I screwed something up till I rode in another X and found out that is normal. |
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| diverman |
| Mine is the same way! And I thought my X was defective until I read this thread. Good thing I didn't take it back and yell at them!:D |
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| cycler15 |
| Does anyone know the reasoning why hot air doesn't blow out of the middle vents? I don't buy the "people don't want hot air in their face" reason. The middle vents are just are close to your face as the side vents... you can always adjust the slats to have the air flow a different direction. |
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| shootist |
Cycler,
Hot air will blow out of the middle vents if you set the fan control to Dashboard, or Dashboard and Floor. If you leave the climate control on Auto, the Auto will only use the dashboard in some A/C super cooling modes (IIRC)
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In most heating situations, most hot air is directed at the floor (hot air rises, remember). A little hot air is bled off to the side dashboard vents to give a little fogging control on the side windows. If the Auto control detects excess interior moisture, and a few other factors, it switches to windshield Defrost, which directs heated air through the A/C and out the windshield and side window defrosters.
You and I are not smart enough to figure out all the logic in the Auto setting of climate control. Here's a hint- the light sensor you see in the middle of the dashboard is used both to turn on the Auto Headlights, and to sense that a really hot sun requires more A/C.
My wife complains that the Auto heat setting blows too much heat on her feet, so I use Defrost fan setting, with the A/C turned off manually. |
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| DaleB |
quote:
Originally posted by cycler15
Does anyone know the reasoning why hot air doesn't blow out of the middle vents? I don't buy the "people don't want hot air in their face" reason. The middle vents are just are close to your face as the side vents... you can always adjust the slats to have the air flow a different direction.
You don't have to 'buy' it... :) but that's how it works. Not all cars work the same. Most only direct air to the floor when in the heating mode. Of course they may other settings also. Any deviations on the MDX have to be done manually.
I rarely encounter an uncomfortable situation by just leaving it in the auto mode all the time. Front windows will fog up upon entering the car in cold high moisture period, but seem to clear rapidly even without going to the manual mode to initiate defrost. |
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| raddray |
| cold air sinks, hot air rises... that's why most heating systems blow heat at the lower vents and cold air on the upper vents.... |
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| BaldEagle |
quote:
Originally posted by DaleB
.............I rarely encounter an uncomfortable situation by just leaving it in the auto mode all the time. Front windows will fog up upon entering the car in cold high moisture period, but seem to clear rapidly even without going to the manual mode to initiate defrost.
That works for me also. We Just leave it set on 72 Auto all year.
The only times I have to use manual mode is when going skiing and have 4 in the MDX. Next time I'll just tell the riders not to breath and that will stop the foggy windows. |
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| phild_mason |
Honda/Acuras always have some air coming out the side vents. The climate control will direct the floor vents, middle dash and defrost.
What I have always done is when winter comes I close off my side vents so as not to have the warm air blowing out there.
I then reopen when AC season starts up. |
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| cycler15 |
| Thanks for the responses guys... I didn't really care. I was just curious. What you guys said makes sense though... I usually leave everything on Auto and never even thought about turning Auto off and setting the air to dashboard. |
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| diverman |
| When you guys are talking about leaving it in the "auto" mode, do you mean "auto" or "full auto" mode? What is really the difference? |
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| DaleB |
| If you take it out of AUTO..the first time you press it is displays FULL AUTO...after that it only displays AUTO. |
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| phild_mason |
In Full Auto where the air is aimed will change depending on the temp. ie a cold morning pulling from the garage it will be down but if the sun warms the car it will switch to the dash.
In Auto only the function is to hold the temp. The air flow will stay the same as the location set with button on the dash, name escapes me now, |
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| cycler15 |
Is it just me or do other people feel that the X's AC system, while very nice and sophisticated, is also confusing as hell.
Take for example just turning on the vent and having cool air from the outside come into the car. Why do I have to change the temp to 60 to get outside air to come in?
This may sound stupid, but my girlfriend loves the smell of the local brewery when we drive by it on the freeway. I can never figure out how to change the AC system so that the outside air comes in unregulated. She just wants to smell the brewery scents (smells like honey). I can never figure out how to get that done without just rolling down the stupid window.... LOL. |
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| pisay87 |
quote:
Originally posted by cycler15
This may sound stupid, but my girlfriend loves the smell of the local brewery when we drive by it on the freeway. I can never figure out how to change the AC system so that the outside air comes in unregulated. She just wants to smell the brewery scents (smells like honey). I can never figure out how to get that done without just rolling down the stupid window.... LOL.
Not sure if it is the same with the '04, but in the '05 I think you can do a voice command "climate control fresh air" to take care of this. |
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| Lacostacal |
I agree the AC system is confusing. My beef is that if I set the AC at 72 and then need to defrost the windshield I have to increase the temp to around 80 to get the needed hot air to defrost the windshield.
It seems to me that if I hit the defrost button, hot air should come out. Instead, I get cool air because I have it set to 72. Does this happen to anyone else? |
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| phins2rt |
quote:
Originally posted by Lacostacal
I agree the AC system is confusing. My beef is that if I set the AC at 72 and then need to defrost the windshield I have to increase the temp to around 80 to get the needed hot air to defrost the windshield.
It seems to me that if I hit the defrost button, hot air should come out. Instead, I get cool air because I have it set to 72. Does this happen to anyone else?
Does this only happen when you first turn on the AC? I would think that with the AC already on there should not be enough humidity in the air to cause condensation on the windshield?:confused: |
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