2006 Mazda RX-8 Mazda RX-8 2006

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2006 Mazda RX-8 repairs by problem area

Engine (52%)

Transmission and Drivetrain (10%)

Brakes and Traction Control (0%)

Suspension and Steering (5%)

Electrical and Air Conditioning (18%)

Paint, Rust, Leaks, Rattles, and Trim (11%)

Other (4%)

Chart based on 82 repairs.
See TSBs and recalls for the 2006 Mazda RX-8.

2006 Mazda RX-8 engine repair cost distribution

$2500+ (11%)

$1000 - $2499 (11%)

$500 - $999 (0%)

$100 - $499 (19%)

< $100 (58%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 36 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2006 Mazda RX-8

Engine not specified

17000 mi Engine replaced due to low compression. 
82000 mi Engine light notifying of cat failure, loss of power. Catalytic converter replaced under warranty. A year earlier (4/10) the engine an intake manifold were replaced. 
98000 mi Motor Mounts went bad - severe vibration and idle roughness 

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2006 Mazda RX-8 4dr Coupe

238-horsepower 1.3L R2 6-speed manual RWD

104000 mi Corrosion on battery terminals caused engine to crank too slowly, would not start and flooded. Cleaned terminals then went through deflooding procedure for probably the fifth time since I got the car. (Crank for ten seconds with foot to floor, wait ten seconds, crank normally for ten seconds, wait ten seconds, repeat; usually requires about ten minutes of this, near the end of which I'm usually ready to give up.) 
45880 mi

C $191
low coolant level warning light came on when the coolant level was fine; known problem with RX-8s (Bulletin No: 01-040/10 
58280 mi

C $370
Replaced the Secondary Shutter Valve as per service bulletin 01-019/08 (MIL ON - P2070 SET). Original SSV is prone to sticking due to carbon deposits; part replaced with new design from Mazda. Replaced ignition coils, spark plugs, and wires with aftermarket units from BHR. Car was hesitating around 5-7000 RPM ~$700 CAD for all parts 
66340 mi Flooded engine 
75681 mi

C $6100
Engine lost compression and was undriveable. Work done to engine: replaced rotar housings, surfaced irons, replaced all seals, oil passage upgrade (this work done by RX-7 Specialties https://www.rotaryengine.com/). Other components that were replaced: Oil Injectors, Thermostate, Waterpump, Spark Plugs. Installed OMP adapter (https://www.rotaryaviation.com/store/p6/Oil_Metering_Pump_Adapters.html). Replaced clutch/pilot bearing/throwout bearing. Replaced catalytic converter with cat-less mid-pipe. 
54000 mi

US $1200
Needed new Ignition Coils / Plugs and Wires Catalytic Converted failed and needed replaced 
34000 mi

US $110
Bought a new radiator fluid reservoir on ebay for about $110. A friend installed for a couple of beers. 
36000 mi total engine failure Total engine replacement. After first engine replacement failed it took 8 more work days to install a 3rd engine. After engine was replaced..... I needed a new catalytic converter. Catalytic converter failed. 
39000 mi

US $100
Coolant overflow bottle replaced to fix defective coolant level sensor. 
42000 mi Catalytic converter replaced 
49000 mi Sticking secondary shutter valve in intake system at low ambient temperatures. Problem went away when weather got warmer. 
67000 mi

US $80
Engine flooded. 
105000 mi

US $6000
Engine replacement; clutch also replaced while engine was out. 
90000 mi

US $1000
Engine compression failure in one rotor. Engine would not turn over due to flooding (typical on this model when spark plugs and/or coils need replacing). Dealer did engine compression test. One rotor failed test. Dealer recommended replacement of engine. Replaced spark plugs and coils. 
6000 mi Cat rattling/fell apart/replaced under warranty. Took the dealer 4 attempts after 4 breakdowns to find the cause. Not impressed 
29000 mi

£2000
Another catalyst has fallen apart. Out of warranty so huge bill. $2000. Not impressed 
30000 mi

£7500
Engine running on one rotor, failed compression test. Needs a new engine, in the Uk so only 3yr warranty. $7500 to repair. Not impressed Engine running on one rotor, failed compression test. Needs a new engine, in the Uk so only 3yr warranty. $7500 to repair. Not impressed 
33000 mi

£2780
Rear rotor - rotor tip seal failed with a tiny piece breaking away - about a 1mm deep. After much arguing with mazda UK they providea new engine but i had to pay an excessive amount to the stealers to put the engine in. 
41000 mi Engine warning light. Dealer replaced ignition coils under warranty. Next day, engine broke a seal (catastrophic event) and engine needed to be replaced. Took 2 wks to get engine and another wk to install. 
44000 mi radiator reservoir. valve getting stuck closed replaced under warranty. 
43000 mi Radiator reservoir not cycling fluid. Not opening under acceleration. Needs to idle for fluid to cycle. 
27900 mi The infamous RX8 flooding problem, which required a tow, priming, and plugs replacement to restart. 
20000 mi

US $400
excessive fuel consumption 
21000 mi

US $375
excessive fuel consumption--8 with regular driving 

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2006 Mazda RX-8 4dr Coupe

212-horsepower 1.3L R2 6-speed shiftable automatic RWD

23200 mi Flooded and wouldn't start. Flooding procedure did not work for owner 
24000 mi idling rough when outside temp below 40F. Emissions pump had stuck sensor 
45500 mi Rotary motor carbon build up. Motor replaced under warranty paid by manufacturer 
68000 mi Catalytic converter replaced under warranty 
14000 mi Both engine mounts were cracked. Dealer said this is common, and they put better, upgraded mounts in. I noticed the problem because the idle was extra loud, and you could even feel in in the pedals. 
20200 mi

US $1100
First time ever, the engine flooded and car would not start. Now, I rev the engine before shutting off, but sometimes it still is hard to start. It is possible to due to car's age. 
200 mi Purchased car, CEL at 200 miles - faulty gas cap gasket 
41788 mi

C $280
Check engine light diagnostic - clear cam sensor error. Install winter tires, detailing. Check engine light diagnostic - clear cam sensor error. Install winter tires, detailing. 

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2006 Mazda RX-8 Engine Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2006 Mazda RX-8 problems occur, check out our car reliability stats.