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Mazda RX-8 Problems and Repair Histories

351 TrueDelta members own a 2000 or newer Mazda RX-8. 125 of these members (35.6%) have reported repairs for their car. A total of 243 repairs to Mazda RX-8s--an average of 0.7 per vehicle--have been reported.

See our lemon odds and nada odds page for more details. To see how frequently Mazda RX-8 problems occur, check out our car reliability stats.

Want to read about specific problems behind these stats? Jump to the Mazda RX-8 problem descriptions below.

Don't infer Mazda RX-8 problem frequency from what you see on this page. Many lucky owners have had no repairs, and their cars are not shown.

Percentage of Mazda RX-8 repairs by problem area

54% of the Mazda RX-8 repairs were to the engine, 14% to the transmission, 2% to the brakes, 2% to the suspension, 17% to the electrical or air-conditioning systems, 9% to the body and trim, and 2% to other areas of the vehicle.

Chart based on 243 repairs.

Mazda RX-8 repair cost distribution

Of the Mazda RX-8 repairs that were not covered by warranty and were not do-it-yourself repairs, 8% cost less than $100, 44% between $100 and $499, 31% between $500 and $999, 14% between $1000 and $2499, and 3% more than $2500.

Chart based on 64 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Non-members can see only ten Mazda RX-8 problems and repair histories. Log in or join us to see them all.
Repair costs are in local units.

2005 Mazda RX-8 4dr Coupe

238-horsepower 1.3L R2 6-speed manual RWD

Mazda RX-8 in Ohio, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Oct 2007 19000    
20000 0 Transmission whine in 6th gear. Noise stopped when clutch depressed or foot off gas. Interior trim breakage. Center console lid broken (glider for sliding cover broken off) and dust shield for e-brake lever broke off in cold weather. Dust cover has known TSB. Engine making a rattling sound when accelerating. Commonly known on the RX8 forums as "marbles in a can". Not diagnosed by dealership (unable to reproduce), however I've read this is detonation or knock. Noise is obvious, but dealer couldn't hear. 
43000 0 Water pump leak...replaced under warranty. Rust formation at contact point between rear freestyle doors and kick panel. Known issue with TSB. Repaired under warranty, though took some wrangling with Mazda. 
57000 0 Headlight leveling sensor failure. Headlights aiming too low. Removed sensor, disassembled. Lot of corrosion inside, cleaned as well as posssible, reassembled. Front sensor cleaned only, will do rear sensor soon. 
58000 120 Condensation in tail light, results in fogging. Removed taillight, cleaned gasket and clogged water drainage channel (was full of dirt, prevents proper drainage, which then leaks into taillight). Fix was not succesful, moisture persists. Headlight leveling sensor failed after prior repair (warning light). Lights aimed too high, blinding other drivers. Sensor removed again, re-cleaned. Sealed wire harness with silicone, reinstalled. After re-aiming headlights, repair OK. Sputtering at low RPM & rough idle. Ignition coils required replacement (coils are "weak" in this vehicle and fail prematurely). Coils purchased and replaced. Also replaced plugs & wires. Total cost for all parts roughly $350. HVAC temp control dial failure. Known issue with these vehicles. Found fix on RX8club.com. Removed stereo/HVAC unit, disassembled. Soldered connections on control board for heater control. Reinstalled. Repair was successful (& easy). 
68700 400 Corroded oil cooler line cracked and developed massive oil leak. 
 
Mazda RX-8 in Ontario, Canada
Date Odometer
(in miles)
Cost Problem/Repair Description
Nov 2007 37200    
39680 56 Rear tail light water condensation and build up. Manufacturers defect. Well documented with Mazda Canada. 
 

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2005 Mazda RX-8 4-door

2-cylinder manual 2WD

Mazda RX-8 in Victoria, Australia
Date Odometer
(in miles)
Cost Problem/Repair Description
Oct 2007 21080    
22320 0 Coils burnt out 
26660 0 Replaced coils. 
 

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2004 Mazda RX-8 4dr Coupe

238-horsepower 1.3L R2 6-speed manual RWD

Mazda RX-8 in New York, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Feb 2007 40000    
43000 0 passenger side visor broke (split in 2) and had to be replaced. While i was there i had them replace the clutch master cylinder because while in heavy traffic on a hot day the clutch pedal becomes spongy. Also i had them add a breather as my dipstick woul 
 
Mazda RX-8 in California, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Dec 2006 30000    
33000 125 Malfunctioning ignition coils. dealer said 'it wasn't a problem'. Malfunctioning ignition coils. dealer said 'it wasn't a problem'. replaced coils myself, issues went away. 
 
Mazda RX-8 in Pennsylvania, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
0 Second Third and Fifth gear were near impossible to shift into, dealer rebuilt damaged components. 
0 Warranty replacement of entire transmission. (Transmission was rebuilt earlier and problem shifting did not go away) 
39000 0 Rear windshield was leaking into the back seat. Left rear back seat and windshield replaced (price is approximate since it was not disclosed) 
 

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2004 Mazda RX-8 4-door

4-cylinder manual 2WD

Mazda RX-8 in California, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Apr 2007 25000    
29000 298 The power lumbar support had a broken switch. Dealer noticed it during an inspection and took care of it under warranty. 
 

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2004 Mazda RX-8 4-door

2-cylinder manual 2WD

Mazda RX-8 in Ontario, Canada
Date Odometer
(in miles)
Cost Problem/Repair Description
Dec 2006 22940    
22940 0 The heat in the cabi would fluctuate from hot to cold (like the air conditioner had come on). Twisting the heat control knob from current setting of hot to cold and back again (repeat as necessary) would usually bring the heat back to the cabin.  Replaced heater, details in email 050207 
 

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