Urchin

The air conditioning on mine does seem weak. Just when it starts getting cold it cycles off. When the fan is on 3 or 4, it blows luke warm air. This is even in the evening when the temp is under 100. Not sure if it is freon related or what. How is the air on others?

rxeightr

Mine is the same way. It is not as potent as other vehicles I have owned.

Still keeps us cool, but it does cycle regulary.

Spin9k

I noticed something like this as well. It's either cold, cold, or seems like it's not on and blowing warmish air. I'm used to climate control in my Acura, which of course auto controls temp, blower speed, etc. Now THAT is the way they should all be!

In MHO I think maybe Mazda cut a corner a little too close here in perhaps capacity (to keep from affecting power too much??) and comfort with no climate control (to keep price down??).

I found that by putting fan on Hi, pointing ducts away from me so I don't get freezing, it's just about right when it's hot and muggy. Seems to mix the air and equalize out.

***Maybe too there is an ecocomy seeting we're in or permanently designed in to the system, cause this is how my other car (old Eagle Summit w/manual air) works when in econo mode air conditioning setting??

PERHAPS MAZDA CAN TELL US WHAT'S UP HERE?

Boozehound

Same problem here too... I've been taking my car through S. Texas for a little break in and the AC seems to blow freezing cold air and about 30 seconds later, there's a 5 second burst of warm air. Maybe there's a valve that's circulating hot water through a heat exchanger when it's not supposed to (essentially turning the heater on periodically). I dont know why it is so noticable, it doesn't act like the compressor shut off for a second and you're just getting recirc, its like its bringing in outside air (even with recirc on) or heating the charge and hitting you with it.

I'd be really interested to know from Mazda whether this is a real problem, or just how the system was designed. And on that same note - how to best utilize the current system...

RobDickinson

lol suspicious 5 seconds.

The RX-8 switches off the A/C compressor for 5 seconds when throttle hits 65%

Maybee if you all wernt driving like nutters it'd be cooler...

StealthTL

iTrader: (1)

That must be it.......a/c cut at 65% throttle.......I should slow down for a while, see if it cuts back in...........naaaah!

Rob isn't it time to rewrite your sig?

Maybe 'medium' power would be more appropriate?

Kidding! KIDDING!

S

RobDickinson

4 that you die riiiight after Mazda UK...

Anyhow, soon be back to 250ps

Urchin

It is not thh cut off at 65% throttle since I drove like a grandma for thh first 100 miles. This happens at steady cruising at 50-55 mph. I will ask the dealer on Monday (gotta finish paying for the car) and post if I learn anything interesting.

RX-Nut

Yup, I've noticed it too, and thought it was just me. The air does seem to go cold and warm, cold and warm regardless of throttle..

Hmm.. Mazda can you help answer our question?

Gamera

Aha, so that's it. Yesterday my wife said she kept seeing a white puff of air (probably just moisture-ladened) coming out of the vent every now and then. I never caught it, but it sounds like what you guys are describing.

It's been about 85-90 F these past few days, and bit more humid than normal for SoCal (side effect of the hurricane in the Gulf), I thought the AC was plenty cool with the air recycled, but just okay when pulling outside air. Blowing air without the AC compressor running seems to always result in warm air, mabye a result of the vent intakes being so close to the engine (actually, I haven't yet checked whether they are located at the base of the windshield like most cars).

Boozehound

Definitely not the throttle cut out. Cruising in 6th gear at 70mph isn't going to cut the throttle. As for the puff of white air, a switch to recirc should cure the problem. But the cycling... that's a good one for Mazda.

miata2rx8

the a/c is weak- keeps cool but not cold- even my miata or a friends 10 year old truck is colder.

its been around 100 around here

Good Duck

Older vehicles with R-12 refridgerant are always much colder than the current R-134A.

tribal azn2

my a/c is prefectly fine.

i live in southern ca AND i have to park outside. when u get in ur car, roll the windows turn, turn a/c to full, start driving, after few seconds close windows, make sure its on recycle mode.

eccles

I didn't notice a problem during the couple of days I had one on loan from Mazda South. The only times I noticed it cycling on and off as some folks have described, was (a) when I was heavily on the gas, and (b) if I I didn't have the temp **** cranked all the way to max cold.

Unlike the Miata, which runs the AC continuously if the button is pressed and blends in hot air from the heater if the control is turned towards hot, it appears that the RX-8 will cycle the AC on and off if the temp control is anywhere other than max cold, and only appears to start mixing in heat once you get past about half-scale on the temp ****. This seems like a more fuel-efficient method to me.

Wolfer

If notice if the floor and dash vents are both on not much air comes out. But if just the dash vents are on it seems fine.

Now if I just have the floor vents on I don't feel any air from below.

Not sure if floor vents are working. Doesn't seem like it.

P00Man

yeah, i noticed that too, if thats the case (make sure of it when my car comes) im just not gunna get it, i can pay a lot less if i want something that doesnt work
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BUBBLER PIPE

Urchin

It not the amount of air coming from the vent, but the temperature. Got a vent thermometer, and the air coming out goes down to 45-47 degrees, but then the compressor cycles off and the temp goes up to 50-53 degress before the compressor comes back on. The temp control is all the way left (cold). Does anyone know if there is a way to control the temp where the compressor cycles off? It gets down to 45 easily, just does not stay there.

P00Man

eyah, but it seems like its hardly blowing...this issue is really starting to get to me....
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TJRX8

In the 90's all weekend here and I didn't notice any problems with the A/C. It spent most of it's time in fan speed 1 or 2. I also didn't notice any cut-off of the cool air either. I'll have to watch for it.

8_wannabe

I concur with Wolfer. Dash vents blow fine, then I shift to floor + vent and I cannot feel anything coming out of the vent. Though I do then feel it on my feet. If I crank up the fan a bit more (3 or higher) I can barely feel something out the vents. Since many of you apparently aren't experiencing this problem I just may make a note of it in my first service check. I keep a/c constantly at the coolest setting, with outside air coming in. I'll try recirc tommorow to see if that's any better.

akrx8

just a observasion but my current cars ac only blows ac air thru dash vents only,the way its made i guess.turn on heat and floor vents rock.if you think your floor vents are not working id first try heat and see if it blows hot air.

8_wannabe

No, actually the floor vents work fine. The problem is, when you have a/c on and try to use floor plus dash vents, all the air comes out the floor vents. Bummer. I'm sure they also work fine for heat, but it's too damn hot now for me to try.

Wolfer

I guess its fine the way it is. I just hope the heat will blow from the bottem. I hate the heat coming out the dash during winter.

Seems to be cool enough if just the dash vents are on.

DisneyDestroyer

I drove over 400 miles this weekend through 90+ heat (midday LA and north-of-LA-desert).

Over that time the AC got better and better. I sincerely think that there is a calibration time needed for the ECU for the AC operation / shutoff. On the way up I would keep it at about 3, all the way cold, and still be on the warm side. Heading back yesterday afternoon, I had it on 1 and was comfortable.

Give it some time, I think the situation will improve.