Mazda RX-8 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Mazda RX-8

Mazda RX-8 Problems

New Climate Control Unit if Heat/Cold Knob Won't Adjust to Right Temp

If the climate control's heat/cold knob is not adjusting to the desired temperature, a new climate control unit may be needed.

Hesitation Caused by Sticking Secondary Shutter Valve

Hesitation and/or a lack of power can be caused by the secondary shutter valve (SSV) in the intake manifold becoming stuck open due to carbon build up around the SSV shaft. This may occur with no Check Engine light illumination but eventually the light will illuminate with code P2070 (Secondary Shutter Valve [SSV] stuck open). The cleaning procedure described under the service bulletin is a long process and it is recommended to install the updated SSV actuator and gaskets. The SSV is activated at higher RPM and the carbon accumulation can happen when it opens infrequently. The effects RX-8's built before April 18, 2007.

Radiator Light Comes On

Mazda has issued Bulletin No. 01-010/10 for the above issue:

Some vehicles may experience the coolant level warning light comes on even though the correct amount of coolant is in the coolant reserve tank and radiator. The coolant level sensor float in the coolant reserve tank (A) is deteriorated and absorbs coolant. The float gets heavy, and sinks, causing the the coolant level warning light comes on. As a mass-production change, the design of the float has been modified.

Replace the necessary parts according to this VIN range.

• For VINs JM1FE****** 100000 to 157837 (built before July 1, 2005), replace the tank with sensor.

• For VINs JM1FE****** 157838 to 403405 (built on or after July 1, 2005), replace the tank only.

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Mazda RX-8 Recalls

Passenger Frontal Air Bag Inflator Ruptures

The frontal passenger air bag inflator may rupture upon air bag deployment, spraying debris inside the passenger compartment. Dealers will replace the passenger frontal air bag free of charge to resolve the concern.

Driver's Front Air Bag Defective

In a crash that deploys the driver's front air bag, the inflator of the air bag can rupture, causing metal debris to strike vehicle occupants. Dealers will replace the front driver's air bag inflator free of charge to correct the concern.

Driver's Front Air Bag Defective

In a crash that deploys the driver's front air bag, the inflator of the air bag can rupture, causing metal debris to strike vehicle occupants. Dealers will replace the front driver's air bag inflator free of charge to correct the concern.

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Mazda RX-8 Reviews

I bought a Mazda Rx-8 2006 candy apple read. I bought in 2007 as pre-owned vehicle and had only 12,000 miles on it and thats practically brand new. The feeling I get when I drive is indescribable I was on top of the world that is until I needed parts, or gas went up, or I decided to use as a commuter car (comfort), and slowly but surely we got the big OH NO, the engine had locked up Kaput at ...
Beautiful and prestigious car but to unreliable and costly to maintain
I bought a 2004 Mazda RX8 Grand Touring this winter. The car is beautiful but...where do I begin? When we tried out the car, there was a noise coming from the rear end. We assumed that it was just the rotors since the car had been sitting for a while; rusted and just needing running. So, during this test drive, which as I mentioned was in the winter was very cold. We tried to get the heat...

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