2005 Mazda RX-8: common problems and reliability

The 2005 Mazda RX-8 has 168 owner-filed NHTSA complaints and 6 recalls on record. The most-reported areas are power train and engine and engine cooling. Owners most often flag engine apex seal failure / low compression — leading to loss of power, hard hot starting, and requiring a full engine rebuild. cited as the primary, inevitable failure point. frequency: very frequent.

Safety record for the 2005 model year

168
Owner complaints
6
Recalls
6
Crash reports
1
Fire reports

Source: NHTSA complaints and recalls filed for 2005 Mazda RX-8 vehicles (US, public record).

Where owners report problems

power train
55
engine and engine cooling
28
air bags
22
steering
17
vehicle speed control
13

Recalls affecting the 2005 RX-8

air bags:frontal:passenger side:inflator module

Campaign 18V402000

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, Californ…

air bags:frontal:passenger side:inflator module

Campaign 18V404000

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, M…

air bags:frontal:driver side:inflator module

Campaign 17V474000

Mazda North American Operations (Mazda) is recalling certain model year 2003-2008 Mazda6, 2004-2008 RX-8, and 2006-2007 Mazdaspeed6 vehicles. The affected vehicles are equipped with a dual-stage driver frontal air bag th…

fuel system, gasoline:delivery:fuel pump

Campaign 17V354000

Mazda North America Operations (Mazda) is recalling certain model year 2004-2008 RX-8 vehicles. Heat from the engine and the exhaust may cause the main fuel pump pipe to crack.

What owners say across generations

Sentiment is deeply polarized and highly dependent on owner expectations and mechanical aptitude. The vehicle is universally praised by its enthusiasts for its unique driving character, described as a joy to drive with fantastic handling, a high-revving nature

  • Engine apex seal failure / low compression — leading to loss of power, hard hot starting, and requiring a full engine rebuild. Cited as the primary, inevitable failure point. Frequency: very frequent.
  • High fuel and oil consumption — described as having "borderline carbureted V8 fuel economy," achieving under 20 MPG (less than 12 L/100km), and consuming oil by design. Frequency: very frequent.
  • Engine flooding — can occur if started and shut off without sufficient warm-up, requiring a clearing procedure. Frequency: recurrent.
  • Ignition system failures — stock coils are a known weak point, causing hard starting and misfires. Frequency: recurrent.
  • Cooling system concerns — engines are sensitive to overheating; stock radiators may be inadequate, especially for spirited driving. Frequency: recurrent.

Owner insights cover all generations of the RX-8.

Typical used price

Used RX-8 listings typically run $8,495–$12,995 across 2004 to 2010 model years.

Full Mazda RX-8 owner reportCompare against another car