2006 Mazda MX-5 Miata Mazda MX-5 Miata 2006

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2006 Mazda MX-5 Miata repairs by problem area

Engine (41%)

Transmission and Drivetrain (4%)

Brakes and Traction Control (10%)

Suspension and Steering (10%)

Electrical and Air Conditioning (14%)

Paint, Rust, Leaks, Rattles, and Trim (18%)

Other (3%)

Chart based on 71 repairs.
See TSBs and recalls for the 2006 Mazda MX-5 Miata.

2006 Mazda MX-5 Miata engine repair cost distribution

$2500+ (12%)

$1000 - $2499 (4%)

$500 - $999 (16%)

$100 - $499 (32%)

< $100 (36%)

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

Chart based on 25 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2006 Mazda MX-5 Miata 2dr Convertible

170-horsepower 2.0L I4 6-speed manual RWD

139000 mi

US $2500
Valve train replaced -- still serious valve related noise -- repair unsuccessful Vehicle inoperative 
28000 mi

US $75
Misfire in a cylinder causing very poor performance. We replaced the spark plug and fed the car a fuel injector cleaner (Techron). We bought a replacement injector but have not installed it because the car is running very well. 
34000 mi

US $100
evap leak code, unable to pass emissions test. replaced gas cap and evap solenoid 
46850 mi

US $500
Replaced hissing pressurized plastic coolant tank. 
64000 mi

US $91
Check Engine Light for Code P0126 (Engine Coolant Below Temp) Apparently there was a design flaw that is addressed by a Mazda Service Bulletin. Never had a problem with mine until now. Clear the CEL and the P0126 code will come back on within a 30 minute trip. 
13900 mi

US $180
Emission system gross leak PO455 code Likely a valve near the fuel tank. Not completed yet. Still diagnosing and researching. 
14000 mi They smoked the emission system and found an air pump in the rear that needed replacing. Expensive little thing. 
118000 mi

US $250
Coolant reservoir cracked and cooling system was not pressurized. Also replaced thermostat while the coolant was drained as a preventative measure. 
32000 mi

US $60
chirping from engine area. believed to be vibration noise. mechanic harnessed some wires thought to be the problem, but did not work. dealer unable to resolve. belt tensioner coming apart. 
50000 mi

US $132
Cooling system sensor had to be replaced. Check engine light had come on to let me know there was a problem. 
51000 mi

US $214
Thermostat stuck open. Had to be replaced. 
46000 mi

US $57
Got CEL (p0126) read at auto parts. Googling landed me http://forum.miata.net/vb/showthread.php?t=335589 with all info needed for diy. Did work myself. 
45000 mi

US $500
Was getting CEL for cooling system, had to replace the overflow reservoir and had thermostat done at the same time. Heard that others have had thermostat failures too. 
43000 mi

US $130
a new thermostat was installed 
76100 mi

US $300
thermostat 
62600 mi Burning smell. Loose fitting allowed oil to fall onto exhaust. Problem diagnosed and sorted by mechanic who deemed he was responsible at servicing 6 months earlier so no charge and oil top up gratis. 
30000 mi

US $560
Check engine light - low coolant temperature. Replaced thermostat. Problem fixed. 

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2006 Mazda MX-5 Miata 2dr Convertible

170-horsepower 2.0L I4 5-speed manual RWD

45000 mi

US $250
Accessory belt tensioner rattling intermittently, had a small amount of play in the pulley. Repair was simple, problem has not returned. Repair was at Approx. 45,000 miles in mid-2014. Quick repair, < 1 Hr. $250 part replaced. 
150000 mi Coolant temperature sensor 
66000 mi

US $40
Vacuum leak 
92000 mi

US $5800
The rod blew out when I was passing a car on a 2-lane road. I had to replace the engine. I replaced the clutch while it was easy 
96000 mi

US $1100
Massive oil leak due to one of the timing cover bolt came off while driving. No sign cam cover has been taken off before (looks like oem sealant when cover removed). Oil sprayed all over engine bay and cooling system (radiator and fan). 
97000 mi

US $90
Misfire cylinder 1. Bad ignition coil. 

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2006 Mazda MX-5 Miata 2dr Convertible

166-horsepower 2.0L I4 6-speed shiftable automatic RWD

25000 mi the computer in car has to be updated due to it sitting all winter under a car cover and couldn't get service light to turn off without the update to the on-board computer.  
76700 mi

US $295
Check Engine Light on; code indicated failed thermostat. Replaced thermostat and performed 60k mile cooling system maintenance, as well as an oil change. 
6 mi

US $23500
gas cap leak, caused check engine light to come on 

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2006 Mazda MX-5 Miata 2-door

4-cylinder automatic 2WD

130000 mi

US $600
Top engine rebuild,  coolant system repair, engine relearn 

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See TrueDelta's information for all Convertibles and Coupes.
See TrueDelta's information for all Mazda models.

2006 Mazda MX-5 Miata 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 MX-5 Miata problems occur, check out our car reliability stats.