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really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
1,500 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Mazda RX-8 AC / heater problems

AC / heater problem

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2004 Mazda RX-8 Owner Comments

problem #2

Jun 052004

RX-8 2-cyl

  • Manual transmission
  • 3,000 miles


Ac and general cabin temperature problems. I am having a combination of problems with the heating and cooling of the car. In the summer when it is very hot there is a noticeable "pulsing" or on/off symptom of the cold air generated by the ac. I timed it and very cold air comes out of the vent for about 30 - 45 seconds. Then it is followed by about the same duration of regular air (the ac seems to shut off) so on hot days you get a pulse of cold followed up by a pulse of warm air. The effect is that the cabin heats up and the ac cannot keep up with it. It the winter when it is cold out there is a different issue. It seems that the vents are allowing outside air to get into the mixture. In the winter ice cold air is being mixed in with the heat which has the same effect where the heater cannot keep up with heating the cabin of the car. There is also an annoying feature on the defroster. You cannot defrost the window with inside air as soon as you turn on the defroster it flips the outside air vent open. So when it is very cold you have to chose between seeing out the wind shield and freezing or heat the cabin and the wind shield fogs up. I have taken the car in three times and have since gave up. The tech's obviously cannot or will not fix it. The tech actually had a thermometer in the vent of the car and of course the car is inside the garage in the shade. So he pops in the thermometer and comes back and checks it a - ok. I gave them a detailed description, do you think they took the car out and drove it when it is above 85 degrees outside? nope

- Broomfield, CO, USA

problem #1

Jun 132004


  • miles
I have gone into my dealership on more than 6 times due to my 2004 Rx-8 air conditioning not working properly. I have a child in the back seat of the car, and in the summer time temperatures can reach 105 outside, and much hotter inside my car. My air conditioner fails to work. Each and every time I've taken it in, it has been on a day when it's not that hot outside, and the tech. Says the out put of the A/C is up to par. It's not true considering I'm driving, and sweat is pouring down my face, and my back sticks to my leather seats. The dealership even stated that by putting in a new A/C it would do no good...that Mazda was having problems with all of the A/C and a new one would have the same problems. The is incredibly frustrating considering this is a new car. This is a big enough problem that I will never purchase this vehicle again, and I tell anyone who asks not to purchase one as well. What good is a car if it won't cool down??

- Valencia, CA, USA

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