38000 mi

Engine replaced due to internal coolant leak

51000 mi US $6000

Feels unfair to post this, since aside from the 51k miles I have done 23 track days. Eccentric shaft cracked on track. Suspect it was caused due to poor balance of the rotating assembly from the factory.I removed/reinstalled,shop rebuilt

88660 mi

Mazda stood by the car and at 155000 Km honoured the engine warranty. It would randomly lose power. Awesome rotary tech at dealer ran a bunch of diagnostics.

40973 mi	Coolant tank sensor failed. This is known failure item.
41447 mi	Catalytic converter failed and was replaced under GA law.

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

17000 mi

Engine replaced due to low compression.

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.

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.

20000 mi US $400	excessive fuel consumption
21000 mi US $375	excessive fuel consumption--8 with regular driving

54000 mi US $1200

Needed new Ignition Coils / Plugs and Wires Catalytic Converted failed and needed replaced

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.

39000 mi US $100	Coolant overflow bottle replaced to fix defective coolant level sensor.
42000 mi	Catalytic converter replaced
75200 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.

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.

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.

27900 mi

The infamous RX8 flooding problem, which required a tow, priming, and plugs replacement to restart.

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.

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.)

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.

83000 mi

Replaced the cat, non-OEM with melted internals, with a catless mid pipe.

40000 mi US $500

Needed to clean throttle body and other intake parts Bad coil packs and spark plugs

47000 mi US $900

Loss of power at low RPM. Solved by new plugs, coils, wires, and throttle body cleaning.

80000 mi	repair and replace wiring harness to fuel pump, replace fuel pump due to hole burned into pump by faulty wiring harness
80000 mi US $210	engine would not start, ran rough. Installed second set of plugs and wires since new. Issue was resolved

31000 mi US $600	CEL indicating engine misfire.Lucky guess diagnosed it as a weak ignition coil.Replaced all 4. At $75 per coil, this should NOT be a maintenance item every 30k miles, but it is with this car.Replaced again at 55k miles (cost of both shown)
50000 mi US $200	Low coolant light on dash (coolant level fine). Sensor in overflow reservoir bad, but it is integrated with the reservoir and can't be replaced. Had to buy and install new reservoir.
52000 mi US $125	Replaces SSV solenoid. Was an 8 hour job due to the location of the solenoid which required removing the upper intake manifold and everything preceding it.
66000 mi US $150	Rear O2 sensor failed

106020 mi C $1300	Coils, spark plugs, and wires.
106020 mi C $400	Rotary seal was gone. Engine required a rebuild.

70000 mi

The car flooded causing the engine to to start. Dealership did a de-flood and de-carbon on the engine under warranty

57000 mi	loss of torque, failed compression test, dealer replacing engine under warranty
57000 mi US $110	Engine was failing vacuum test. Dealer replaced engine.

60000 mi US $2500	Broken mount
69000 mi US $1700	Replace radiator, water level sensor
72000 mi US $1500	Emissions sensor
87900 mi US $300	Gas tank fuel ring broken.
90000 mi US $70	Engine not starting when hot. Loss of compression on front rotor and rear rotor is marginal. Fix is replacement engine at cost $5,000. No repair. We plan to trade off car.

34200 mi	At 34K, car's original coils were replaced as a precaution. Replaced plugs and wires, too.  On way home from having coils and plugs replaced, engine stalled while idling in traffic. Happened repeatedly. Problem turned out to be computer glitch due to coil replacement.
37300 mi US $264	CHECK ENGINE LIGHT (non-flashing): • P0442: Small EVAP leak • P0456: Very small EVAP leak PARTS ORDERED: • Purge Valve • Gas Cap PARTS: $140 LABOR: $124 New purge valve and gas cap installed.

133200 mi US $157

I noticed a drastic decrease in fuel economy, so I decided to change the ignition system with OEM parts. Fuel economy has increased by 7 MPG.

22000 mi US $400	Engine flooded rotary engine, weak battery, new battery replaced twice.
23000 mi	would not start. engine flooded. Also weak battery which was replaced with new upgraded one.

20000 mi	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 mi	Water pump leak...replaced under warranty.
58000 mi US $120	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.
69100 mi US $400	Corroded oil cooler line cracked and developed massive oil leak.

59520 mi C $900	Some emissions coil
62300 mi C $1100	Flooded car, towed to shop. While deflooding car preventively replaced plugs and wiring, water pump, thermosat, air filter, upper and lower radiator hoses.
64480 mi C $1072	Coils all replaced and battery replaced ... and maintenanace done also
68200 mi C $212	Engine - compression off and was told needed new engine ... Have been complaining to dealer for over a year about light coming on... now the engine is toast. THEN I find out Engine warranty WAS in effect until Sept 2013.Did not honor

55800 mi

Engine died, lost compression. Mazda warrenty replaced the engine for free with a new one.

72540 mi C $1200

Engine compression low, couldnt start car when warm, car stalled at idle. Engine had to be replaced.

58000 mi	Thermostat failed. Engine overheated and radiator basically blew up.
58000 mi US $7000	Low compression. Had to have a rebuilt engine installed.
64000 mi	Got a check engine light. Code indicated the fuel mixture was too lean. I couldn’t find a problem so I cleared the code and it has not come back.

54000 mi	Clogged Catalytic Converter. Replaced under warranty.
75000 mi US $240	Front O2 Sensor failed
96000 mi US $54	Low compression, engine replaced under warranty
109000 mi US $700	General cooling system failure. Slowly pushing coolant out of overflow, even at idle before thermostat opening. Not sure of specific cause. Everything replaced (rad, thermostat, coolant hoses, coolant bottle).
109000 mi US $130	rear O2 sensor replaced

44000 mi US $50	Saw smoke coming out of tailpipe when floored. Oil got into intake somehow, even though oil wasn't overfilled. Cleaned out oil, changed airfilter. Installed oil catch can to prevent reoccurrance. Believe oil recovery process was changed on later RX8s. Oil got into the intake somehow, even though my oil wasn't overfilled. Cleaned out oil and changed airfilter. Installed oil catch can to prevent future occurrance.
88200 mi US $500	Hot start problem. Replaced coils and plugs. Did not solve. Later checked compression - 90psi. Battery is only 2.5 years old and this car got the faster starter in 2006 so the problem is prob not electrical.
89000 mi	Hard start not fixed. New owner aware of low compression, will try to drive it this way.

13259 mi

Replaced both engine mounts and engine mount bracket. Adjust headlight beam height. Replace lower right and left side rocker panel moldings/deformed,again

82000 mi US $900

Compression failure. Engine to be replaced.

68200 mi

Engine Failure/low compression/engine replaced with reman. engine

34600 mi

Coolant level sensor went bad, causing the light to come on when the coolant was not low. They replaced the reservoir to fix the problem.

26660 mi

Replaced coils.

66000 mi US $100	Check engine light came on. Mechanic said it was a spark misfire, but need to bring the car back for "computer diagnostic." Might need a whole new engine. failed the vaccuum test. Replaced the whole engine with new one.
67000 mi	After getting a new engine, came back because the check engine light came back on. Said it was a cracked valved part. Now the steering light came on. Really hard to turn the steering wheel. Don't ever get this car. Been at the shop for soo many reasons.

64000 mi US $220

I was receiving CEL for a misfire in Cyl 1. Kept resetting, then finally died at high RPM randomly and finally limped home. Replaced coils, wires, plugs. The plugs looked like they were original.

56420 mi C $300

Fuel pump failure

105300 mi US $200	SSV stuck / failure
106000 mi US $200	SSV circuit low p0661
107000 mi US $850	Multiple electrical issues resolved
107000 mi US $500	pissing oil everywhere

63000 mi US $175

Replaced rear o2 sensor.

77500 mi C $500	OEM catalytic converter replaced at 95000 miles Emission air pump was replaced due to dry bearing in the electric motor
82460 mi C $4000	Engine replaced at 95000 miles due to blown seal in the rear rotor. Lost compression. OEM catalytic converter replaced at 95000 miles
122760 mi C $300	OEM latest revision Mazda coils (made in Japan, not knock-offs) requiring replacement after 25k

114000 mi US $6700

I got a engine replacement for this car in december of 2011 and just recently, the engine blew again. I took it to mazda and they would not cover it by warranty and i was stuck paying well over $6,700 for repairs on it

62000 mi US $7800

blown gaskets

49000 mi US $200

O2 sensor replaced. wasn't damaged before going in.

59000 mi US $545	Replaced ignition coils along with maintanence replacement of plugs and wires
76000 mi US $300	Light on for coolant level, replace coolant tank and sensor, when replacing tank a tube broke off radiator, install new radiator

95000 mi US $1000

Complete clutch replacement. Friction plate worn out, throw-out bearing hanging on by a thread. Very impressed that after countless track days and runs through the twisties the clutch finally gave out. Took 95,000 miles to do which isn't bad.

31000 mi A $380

Sensor in the bottom of the Coolant Reservoir was required to be replaced. Check Engine Light would appear at nearly all times while driving.

70700 mi US $650

Loss of power, smell of burning plastic, smoke from hood and in trunk compartment. Ignition of non-combusted fuel by catalytic converter in exhaust system melted oxygen sensor, trunk carpet & jack holder. Catalytic converter may be damaged.

65000 mi US $560

Car was running very rough with difficulty starting. Had 3 ignition coils replaced.

137200 mi US $1000

Water pump and coolant hose leaking. Water pump and cooling hose replaced Oxygen sensor failed

76000 mi US $2000

Lost compression on the front engine rotor, the car could not be driven. The engine had to be replaced. I sourced an engine, purchased it, and installed it myself.

26040 mi $600	Stuck secondary shutter valve. Cel: P2070
32240 mi $300	Replaced PCM / Main control module

65000 mi US $360	Engine failure, replaced catalytic converter, ignition coils, and sparkplugs.
108600 mi US $700	Radiator replacement
110000 mi US $1500	New Clutch Heater Core Died Blown water seals

73275 mi US $2050

Replace motor, spark plugs, coils, spark plug wires.

55000 mi US $500

No start, replaced coils, plugs, re-flashed computer. Reflashed computer to reset after problem #1 to insure no additional, unknown problems.

67200 mi US $150	Replaced all 4 coil packs and wires. Appeared to be original. Just starting to fail.
68000 mi US $500	Gas Tank overflow badly leaking upon every fill up. Had to replace seals and two parts. Dealer only items. Fire hazard if left unrepaired.
73500 mi US $1300	Fuel pump failing replaced, solenoid for throttle positioner failed replaced, fuel vacuum sensor failed replaced.
74000 mi US $125	Recurring idiot light code for "Lean on Rotor 2". Dealer had replaced several items previously with this code. Replaced Mass Air Sensor in intake. Permanently corrected idiot light for lean condition.
76000 mi US $400	Motor mount was leaking. Had them install new set while there for normal maintenance items.
85000 mi US $200	Replaced SSV Solenoid due to CEL P0661 and mechanic physical tests of 3 solenoids controlling AIR, SSV and VDI behind intake manifold. I purchased the part thru Mazdaspeed at discount and Mechanic installed it. Cost $200 total.
86300 mi	At 85,500 miles clutch was worn out and slipping in higher gears under acceleration. I autocross this car year round so it held up well. Replaced everything as the factory flywheel is unable to be resurfaced. Got Fidanza improved steel one which needed counter weight from automatic to balance it. Also got Stage 1 exedy clutch. Most people wouldn't like it as much stronger springs tends to stall car:) Once apart discovered that my throwout bearing was nearly toast but was still working and not making noise. Every 25,000 miles I replace the plugs and wires. The big tipoff for me that a coil or coils are dying is out of nowhere the car won't fire off like normal. Will take twice as long or more to start over 5 seconds. At 30,000 I replaced the Auto Zone coils. Performance improved. Running car at high revs in 2nd gear and them firing 3x every rotation would be about 3000 x 3 = 9000 firings/minute at 9000rpm due to the +3x ratio of flywheel gear to output shaft. That's a lot of stress on the 4 coils. If I drove the car on the hwy in OD the coils would last a very long time. At least twice as long.

177700 mi

Replace radiator

21800 mi

Replaced ignition coils. Motor mount has been replaced with Mazsport (now defunct) solid engine mounts. Bounce totally gone. It did however break the stud securing the mount on the subframe but that was a result of a clutch kick around a round about. Fixed it with grade 10 bolt.

51000 mi

Bad PCM - Replaced under emmisions warranty

98000 mi US $200	A new fuel pump was installed to replace the gradually failing original. The symptoms were hard starts, lack of acceleration when less than 1/2 a tank, and increasing long term fuel trims (trying to compensate for reduced fuel pressure).
102500 mi	Catalytic Converter Failure
105000 mi US $300	Installed an OEM quality MagnaFlow catalytic converter and silencer mid-pipe to replace the previously failed unit (failed one was aftermarket not OEM).

110000 mi US $1500	Spark plugs replaced
112000 mi US $300	Antifreeze reservoir and hose leaking.
114000 mi	Apex seals failed.

38150 mi	CELs - Replaced intake manifold that was cracked; replaced fuel tank cap; All under warranty
69000 mi US $45	PCM Computer reflash/update.
81000 mi US $210	Heat shield fell out of exhaust system. It took out an Oxygen sensor when it did that. Needed a new 02 sensor.
97300 mi US $300	Replaced broken motor mount

2013 mi	Dealer reflashed PCM to version "M". Oil/Filter change and tire rotation.
30097 mi	Dealer 4206F recall, replaced plugs and reflashed. Replaced trans and diff fluid.

118000 mi	Original thermostat stuck closed thus causing overheating. Replaced with new OEM part. Working waterpump replaced as a preventative step.
123000 mi US $120	Fuel pump started leaking at outlet after removal for cleaning. The plastic outlet is a known weakness on RX-8, which tends to develop hairline crack. Replaced 120k-mile Mazda OEM unit with Delphi FG1250, which was an OEM supplier.

54000 mi US $103	Engine compression tested below minimum levels.
56000 mi	Engine tested for low compression.

33000 mi US $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.

35000 mi

Both O2 sensors failed within 1 week of each other. Replaced under warranty

68000 mi	Hard starting when warm. Low power. Dealer ran decarb procedure but problem still exists. Dealer now claims they cannot replicate problem and it remains.
68300 mi	Car still hard starting when warm. Dealer stated. "We cannot do any more under warranty." The engine is considered normal by Mazda even though we understand this is not typical behavior.

51800 mi	Engine mounts needed to be replaced - were replaced under my extended factory powertrain warranty
58600 mi	Ignition coils failed, spark plugs fouled, very low on power and poor fuel economy

38000 mi

clogged catalytic converter

66000 mi US $170	igniton coils and spark plugs needed to be replaced
70000 mi	rear heated O2 sensor wiring harness melted so getting bad readings

36580 mi C $120

Misfire at high RPMs - One coil was bad, replaced all 4 coils.

45000 mi	Flash update to ECU
76000 mi US $120	Flooded after moving car when it was cold, improper warm up procedure.
145000 mi US $3000	complete long-block engine replacement
146000 mi	Fuel tank leak risk remediation

65000 mi	Evaluation of Check Engine light led to an engine replacement. After the Check Engine Light came on, the dealer tested the compression and determined a new engine is needed.
69000 mi US $600	Check Engine Light came on. Dealer replaced an intake solenoid. Front brake pads replaced.
80000 mi US $900	The coolant overflow tank & radiator were replaced.
80000 mi US $800	Replaced fuel pump - leaking at fitting to the fuel line.

80600 mi C $50

Replace SSV vacuum actuator

192000 mi US $2100	Apex seal failure. Engine replaced.
222000 mi US $75	SSV solenoid replaced after failure.
235000 mi US $15	evaporator solenoid failed
259000 mi US $2200	Radiator fans replaced

119660 mi C $60	Vacuum control valve for the SSV intake valve failed/malfunctioned, producing code P0661 - solenoid valve circuit low voltage. Replaced the control valve solenoid (Part #K5T49091) and cleaned the connectors. Runs great now!
122140 mi C $25	OBDII scan revealed P0076 (non-displayed MIL) VDI control valve circuit voltage low. Ordered a new vacuum control solenoid online (25$ total) and replaced the part/cleaned electrical connection. Whole job took about 2hrs to complete. After the repair, fuel economy and power were restored to normal.

107300 mi US $40	Fuel pump replaced.
125200 mi US $4500	Replaced Engine.
134000 mi US $180	Coil failed. Replaced all with new.

22000 mi US $8

Check engine light for vacuum leak - possible gas cap leak

72400 mi	Car overheated. Thermostat and waterpump replaced. Fan relay replaced. The work was performed under extended warranty.  Catalytic converter was found to have failed. Owner paid for catalytic converter Engine seals were found to leak.
76000 mi	Coolant hose was slowly leaking coolant on electric steering. Electric steering stopped functioning. Upon inspection, Mazda tech discovered that the coolant was shorting out the steering. Hose was replaced.

71920 mi

Mazda recall for potential leak around the fuel pump.

90000 mi US $100

Service engine light and misfire- Failed leading, rear rotor ignition coil

116300 mi US $100

MIL P2096, Cleaned MAF, Replaced the downstream o2 sensor, Added Fuel injector cleaner to the gas tank. Replaced gasket between the Cat & exhaust manifold

22000 mi	Engine running rough, harder to start than normal. Diagnosed as faulty coil pack, parts ordered waiting for repair.
23000 mi	One of two coil packs replaced, engine running normally.
30000 mi	Vehicle w/ a subsequent no start condition after being moved on home driveway. Towed to Dealer, half day in shop. Per dealer, carbon buildup, need to drive car at high speed or revs occasionally. I suspect flooding as this is a known RX8 problem.
32000 mi US $50	All four coil packs needed to be replaced, vehicle was drivable but advised to not drive too much while waiting for parts. Per tech could result in damage to catalytic converter. Overheat light intermittently illuminating. Per dealer coolant reservoir and sensor defective. Parts replaced on same visit as repair for coil packs.
33000 mi US $50	Noticed intermittent vibration at idle when A/C cycling on and off. Dx by dealer as two broken motor mounts, ordered under extended warranty. Deductible of fifty dollars. Motor mounts replaced, problem resolved.
38000 mi US $523	No start condition, dealer recommended decarbonization per TSB 01-015/08. Plugs changed and Zoom engine cleaner used. Car now starts but engine compression not in spec. Tech line notified per dealer. Waiting on results.
39800 mi	Previous engine showing low compression after no-start problem, engine replaced with factory rebuilt one.

36900 mi	Replaced spark plugs and ignition coils (all). This was done by the dealer, I was not charged for it. This is also considered regular maintenance.
42000 mi	Engine failed compression test, was lacking power down low so under the Mazda 8y/100,000mi engine warranty was replaced.

34000 mi US $300	Poor engine response, especially at low rpm, followed by check engine light after a week or so.
35000 mi US $248	There were 2 bulletins for weak engine, reflash and diagnostics. The diagnostics turned up shorted coil (so, driving with 1 rotor). Coil replaced on out of warranty assistance, labor paid by owner.
46000 mi US $780	Fuel cap seal weak; engine light on, but car worked. After few days, car didn't start. Diagnostic showed P2070 and P0456. Replaced 2 intake manifold tuning valves. Replaced fuel cap on extended warranty.
53000 mi US $400	Weak and slight knocking at mid revs under load. Stuck valve on secondary air intake freed up, engine decarbonized with Mazda kit, slightly corroded ignition wires replaced, coils replaced, air filter replaced.

53000 mi US $300

Engine lost compression; engine + fuel pump replaced under warranty. Plugs and wires replaced at owner's cost. No engine problems since.

23000 mi US $1279	Ignition coil failure Decarbonized engine apex seals
38000 mi US $250	Check engine light on. Reset, no further problem.

35000 mi

Mazda replaced engine under warranty due to carbon build up which greatly reduced horsepower.

38440 mi C $350

Flooded engine in cold weather.

39680 mi A $30

2nd set of failed IGN coils. Replaced(owner) myself for