Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2005 Mazda RX-8 Reliability ReportKeepScore 35/100 · top failure points · buy or avoid

35/ 100

KeepScore

HIGH RISK

Grade: F

A driver's car with an unavoidable ticking time bomb under the hood, demanding deep pockets and mechanical devotion.

Full system breakdown + what I would do

Quick Facts · 2005 Mazda RX-8

  • Scores 7 points below the strongest nearby year — the 2004 Mazda RX-8 earns a 42.
  • The system most likely to surface first: rotary engine (critical severity).
  • Has 6 NHTSA recalls on record — the most notable involves the air bags:frontal:passenger side:inflator module.

2005 Mazda RX-8: Buy or Avoid?

The 2005 Mazda RX-8 is a beautiful, exhilarating sports car with a truly unique driving experience, but its reliability is severely compromised by the Renesis rotary engine's inherent weaknesses. This vehicle is a passionate enthusiast's project, almost certainly requiring significant engine work, making it a high-risk proposition for most buyers.

Biggest Strengths

  • Exceptional handling and chassis balance
  • Smooth, high-revving rotary engine (when healthy)
  • Distinctive styling and engaging driving dynamics

2005 Mazda RX-8 — Known Trouble Spots

The systems that break first on the 2005 Mazda RX-8. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

1
Rotary Enginecritical
2
Ignition Systemmoderate
3
Catalytic Convertermajor
Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

Safety Recalls on the 2005 Mazda RX-8

6 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Mazda North America Operations (Mazda) is recalling certain 2003-2008 Mazda6, 2006-2007 Mazdaspeed6 and 2004 MPV vehicles nationwide. Mazda is also recalling 2005-2006 MPV vehicles in Alabama, Arizona, Arkansas, California, Delaware, the District of Columbia, Florida, Georgia, Hawaii, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maryland, Mississippi, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands. On July 9, 2019 this recall was expanded to include certain 2004-2011 RX-8 vehicles that were previously recalled under 16V-354 but have not yet been repaired. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these passenger air bag inflators may explode due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Mazda North America Operations (Mazda) is recalling certain 2005-2006 Mazda MPV vehicles sold, or ever registered, in the states of Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. On July 9, 2019 this recall was expanded to include certain 2005-2009 RX-8 vehicles that were previously recalled under 17V-011 but have not yet been repaired. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these inflators may explode due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.

What breaks on the 2005 Mazda RX-8?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Mazda RX-8 — Year-by-Year Comparison

Compare KeepScores across nearby years of the Mazda RX-8. Click any year for its full report.

Competing 2005s Worth a Look

Similar class, similar year range — ranked by KeepScore.

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Frequently Asked Questions

Full Report

2005 Mazda RX-8

7-system breakdown, mileage danger zones, repair cost projections, buyer checklist, and expert verdict.

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