Mazda MX-5 Miata Mazda Miata MX-5

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Mazda MX-5 Miata repairs by problem area

Engine (32%)

Transmission and Drivetrain (10%)

Brakes and Traction Control (5%)

Suspension and Steering (7%)

Electrical and Air Conditioning (25%)

Paint, Rust, Leaks, Rattles, and Trim (14%)

Other (6%)

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Chart based on 482 repairs.
See TSBs and recalls for the Mazda MX-5 Miata.

Mazda MX-5 Miata electrical repair cost distribution

$2500+ (0%)

$1000 - $2499 (6%)

$500 - $999 (10%)

$100 - $499 (33%)

< $100 (51%)

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Chart based on 107 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2023 Mazda MX-5 Miata 2dr Convertible

181-horsepower 2.0L I4 6-speed manual RWD

5000 mi Integrated infotainment (radio and navigation interface) failed. Replaced unit under warranty Integrated Infotainment system developed a hard fault; would not switch between radio and navigation functions. 

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2020 Mazda MX-5 Miata 2dr Convertible

181-horsepower 2.0L I4 6-speed manual RWD

11000 mi Key fob lock in car while running. roadside came out opened car. No back up key went to dealer 

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2018 Mazda MX-5 Miata 2dr Convertible

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

80000 mi

US $845
Needed New compressor and seals. 

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2017 Mazda MX-5 Miata

Engine not specified

3000 mi Nav system was intermittently non-functional 

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2017 Mazda MX-5 Miata 2dr Coupe

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

12000 mi Battery would drain/go dead because the cruise control switch was in the "on" position even though the car was turned off. Manufacturer issued two recalls to fix it. 
12000 mi Blind spot sensors did not FULLY pick up vehicles in blind spot. ALSO did not (sort of) work when first starting car, only after a re-start. 

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2017 Mazda MX-5 Miata 2dr Coupe

155-horsepower 2.0L I4 6-speed manual RWD

5400 mi Firmware was updated to fix a software issue which caused the battery to discharge when the cruise control was left on after shutting off the car. 

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2017 Mazda MX-5 Miata 2dr Convertible

155-horsepower 2.0L I4 6-speed manual RWD

11000 mi Dead battery. Ultimately found out was caused by bad software for cruise control 
1000 mi

US $65
Repaced battery - it wouldn't hold charge properly. (I think the dealer let it go dead on the lot.) 

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2016 Mazda MX-5 Miata 2dr Convertible

155-horsepower 2.0L I4 6-speed manual RWD

39000 mi

US $200
Metal tube/pipe was cracked do to stress. New revised pipe was installed. 
17000 mi

US $760
Fuel pump failure. The tolerances in the fuel tank are incredibly tight, only a couple millimeters of room. The float attached to the sending unit (fuel gauge) keeps sticking at 3/4-full tank. Reads accurately below 3/4-full. Mazda has attempted to place the pump several times, including utilizing Mazda tech team. Float still won't show a full tank. I believe another attempt is going to be made after summer driving season is over. 
11000 mi Excessive heat entering cabin from heater core. TSB was issued for this condition and an insulator from later production cars was installed. 
10000 mi Leaking evaporator 
20000 mi Overhead dome light wiring came loose - windshield surround was removed to repair. 
6000 mi The infotainment screen began to delaminate in the top right corner. The dealer replaced the part under warranty 
21000 mi

US $50
Wires on heating fan broken. Poor install at the factory. 
4000 mi Replaced Blind Spot Monitoring Sensors under a TSB. I noticed that they were randomly turning off. Car had to be stopped to turn them back on. 
15000 mi Tire pressure monitor error. Dealer reset system for no charge. Multiple leaks in refrigerant lines including a section of aluminum tubing and the compressor. Note: This repair was done in August of 2019, not May of 2017. Wasn't able to delete and re-enter with correct date. 
12000 mi Blind spot monitors would shut down in heavy rain or traffic. Known issue. Mazda replaced sensors. 

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2016 Mazda MX-5 Miata 2dr Convertible

129-horsepower 1.5L I4 6-speed manual RWD

10700 mi Diagnosed by mechanic as windscreen washer motor failure needing replacement. Was going on trip to Europe so decided to live with it temporarily. Intention to replace it on return in may 2018. Also the multimedia button for home and music system has lost its click spring and is stuck. Tyre pressure monitor on dash board keeps showing up as failed needing to be reset, especially if sometimes go across potholes . tyres and pressure in good condition. Unsure if previous owner did not replace monitors when changed tyres. Will try and resolve it in next few months. 

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2011 Mazda MX-5 Miata 2dr Convertible

167-horsepower 2.0L I4 6-speed manual RWD

31000 mi Replaced collision sensor 

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2010 Mazda MX-5 Miata 2dr Convertible

167-horsepower 2.0L I4 6-speed manual RWD

46000 mi Bad connection at battery terminals. Wire-brushed terminals and coated with petroleum jelly. 
87 mi The battery died a few days after purchase. It had sat on the lot for a few months in the winter and no one had driven it. The dealer replaced it within hours and we were on our way. 
16000 mi

US $155
Battery died over the winter despite a battery minder system. It wouldn't hold a charge. The battery was replaced and all seems well. 
11000 mi A/C not cooling. It had to be evacuated and recharged. Also the Gas Cap broke. 
40900 mi Unsuccessful courtesy A/C repair, Freon leaked out again over the weekend. Courtesy repair of A/C. A rubber grommet on the high-line side apparently had a crack in it from the factory. They replaced the grommet and thought it would fix the problem. 
45000 mi Still in the Dealership Repair Shop for a continuing saga of air conditioning problems. It will not hold a Freon charge. They've replaced a couple more grommets. I suspect it is the Evaporator. Friday,04-11-15, Picked up the car from Sport Durst Mazda. Mileage is 45931. Replaced 2 "o" rings going into Evaporator Unit. Dealership says the problem has been corrected this time. Did not charge me for repairs. 

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2010 Mazda MX-5 Miata 2dr Convertible

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

44000 mi

US $150
Radio has satellite but when selected an error message is displayed "antenna failed" had diagnosed at Mazda and they claimed it needs an antenna - had replaced by dealer we bought the car from (Chevrolet dealer)because we bought car used. Not fixed. 

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2009 Mazda MX-5 Miata 2dr Convertible

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

76000 mi

US $500
compressor burned out , needed to replace the compressor and changed the drive belt 

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2008 Mazda MX-5 Miata 2dr Convertible

166-horsepower 2.0L I4 6-speed manual RWD

19000 mi

US $50
Radio Faceplate Replaced 
55300 mi

US $900
Ac condenser needed replacement. 
33000 mi

US $740
REPLACED LEAKING CONDENSER COIL 
101800 mi

US $400
Heater fan motor stopped working and was replaced. 
71000 mi

US $150
Radio controls stopped working. Replaced with a working used radio. 
87000 mi

US $135
HVAC blower not functioning. Replaced blower and system resistor. Radio replaced before not working (cd player not accepting discs). Replaced entire unit with fully functioning used part. 
78000 mi

US $20
Map light switch failed. Map light assembly replaced. 
20000 mi

US $60
Both key remotes failed to open or lock doors or the trunk. New batteries made no difference. Needed reprogramming. Wow. Wrong. Battery in the key was upside down. I found it, fixed and it work. 
27900 mi Car would not start due to faulty relay in fuse box. Second time this has happened. Last time was about two years ago. Relay replaced, but dealer took a week to figure out the problem. 

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2008 Mazda MX-5 Miata 2dr Convertible

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

10200 mi Poor radio reception 
13000 mi Cd changer would not unload cds, they ordered the unit and it was replaced 
113000 mi

US $200
Trunk door lock button was occasionally not triggering an unlock. Whole button was replaced and fixed the problem. 
49000 mi

US $1000
Air bag sensor located under passenger seat faulty. Shop found a code when running a diagnosis for the check engine light caused by the oxygen sensor. 
121000 mi I replaced broken factory CD changer-stereo for an additional repair cost of $500 in parts. About 2 hours changing the HID lights, fog lights, licence plate lights, & side marker lights. I replaced broken key FOB which will require a locksmith to program and will end up costing $400 total. 
126000 mi

US $120
The starter fuse blew. Worked OK when replaced. But blew again. I replaced the starter myself. Very hard job due to location and limited space. Required draining coolant and removing the factory oil cooler to access. 
43800 mi HVAC blower motor very noisy 

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2007 Mazda MX-5 Miata 2dr Convertible

166-horsepower 2.0L I4 6-speed manual RWD

50000 mi

US $10
copper battery cable corroded. needed a jumper start. removed damaged terminal. replaced with a new heavy duty leaded steel terminal. 
99000 mi

US $124
replaced all lights in front end of car 
103000 mi HVAC blower motor was buzzing and vibrating. Opened housing to clear out insulation fibers and leaves that filled the blower. 
99000 mi

US $91
refrigerant leak. Replaced fill valves and recharged system. 
101000 mi

US $17
Windshield washer pump failed. 
106700 mi

US $1500
A/C no longer blowing cold air. Leak in compressor. Replaced compressor and condenser (only available as a kit). 
107300 mi

US $280
Radiator fan failed. Replaced the fan. 
109000 mi

US $50
Blower motor failed. Replaced with new. 
47120 mi

C $15
Motorized antenna stuck in the up position. Replaced it with a fixed antenna myself. 
2918 mi Replace Right-Hand Window Motor and Window Regulator under Warranty 

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2007 Mazda MX-5 Miata 2dr Convertible

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

42500 mi

US $350
Switch for temp sensor was broken. Had to replace. 
60300 mi

US $500
Required a few jump starts. Test showed bad alt and battery. When i took battery to mazda for warranty replacement it didnt test in their failure mode but on same machine at repair shop it failed. 2 mo later battery did fail 
62000 mi Warranty battery just less than 2 yrs old. WORST BATTERIES EVER 
79300 mi

US $120
not cooling. no leak found. dye and freon added. 
91300 mi Not cooling well. Low on freon. 
120000 mi

US $1000
Fan was out. It was built into the compressor and the part was crazy expensive from dealer & 2nd hand was not to be found, so bought used part and had it replaced. 

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2006 Mazda MX-5 Miata 2dr Convertible

170-horsepower 2.0L I4 6-speed manual RWD

58000 mi Cd would not eject. did hone fix which i read up on miata.net 
61680 mi

C $165
Replaced Battery 
44000 mi

US $290
All lights in front headlight binnacles replaced. One of the main bulbs burned out. Miata headlight bulbs are notoriously hard to replace so had it done at a local service station. 

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2006 Mazda MX-5 Miata 2dr Convertible

170-horsepower 2.0L I4 5-speed manual RWD

66000 mi

US $65
Left front headlight low beam bulb blown. Terrible to access. Took 3 hours to repair as it required removal of inner fender liner. 
86000 mi

US $200
AC had no refrigerant in system. Shop performed leak test, replaced two o-rings. 
25300 mi

US $400
Trip meter not working. Some dash lights not working. Replaced instrument cluster as there was a short/burn on the circuit board. I bought part on ebay. Dealer had to install/program. Not sure of cause. Previous owner error maybe? 

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2006 Mazda MX-5 Miata 2dr Convertible

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

22000 mi

US $159
Power window switches failed. Purchased replacement switch from local dealer and Haynes Manual on-line. Performed work myself which was quite straightforward. 

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2006 Mazda MX-5 Miata 2-door

4-cylinder automatic 2WD

67000 mi Air conditioner would get warm sitting at a light or stop sign, but cool while driving. CD player stopped working - was eating CD's and not spitting them out 
67200 mi AC lines were clogged, replaced them. 

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2005 Mazda Miata MX-5 2dr Convertible

turbocharged 178hp 1.8L I4 6-speed manual RWD

79000 mi

US $170
ac recharge 

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2004 Mazda Miata MX-5 2dr Convertible

turbocharged 178hp 1.8L I4 6-speed manual RWD

99600 mi

US $80
Failed starter, replaced with new 
28600 mi

US $70
Actually went to two shops - 1st (Anderson SC) told us the condenser needed replacement - 2nd (Tampa FL - Mazda specific shop) simply refilled the freon, verified there were no leaks and called it good. 
136000 mi

US $500
Alternator threw belt. 

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2004 Mazda Miata MX-5 2dr Convertible

142-horsepower 1.8L I4 6-speed manual RWD

51300 mi

US $1054
Bad bearing in the clutch assembly. Replaced compressor and clutch assembly. 
37000 mi

US $150
Air bag warning light diagnosed by dealer as bad clockspring. Was quoted nearly $600 to repair. I ordered parts online for <$90 and repaired in <2 hours 

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2004 Mazda Miata MX-5 2dr Convertible

142-horsepower 1.8L I4 5-speed manual RWD

136000 mi

US $374
Alternator replacement 
151000 mi

US $850
AC relay harnesses and relay replaced. 

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2003 Mazda Miata MX-5 2dr Convertible

142-horsepower 1.8L I4 5-speed manual RWD

23250 mi Replace left door lock because of squeaking 
23734 mi Droopy heating vents 

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2002 Mazda Miata MX-5 2dr Convertible

142-horsepower 1.8L I4 6-speed manual RWD

45000 mi

US $100
Driver's side remote door lock failed 
89000 mi

US $100
Right fog light failed (the fixture itself, not just the bulb). Replaced fog light assembly. 
8000 mi Battrey died after 13+ years. Replaced with factory type AGM unit. 

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2002 Mazda Miata MX-5 2dr Convertible

142-horsepower 1.8L I4 5-speed manual RWD

217000 mi

US $210
starter replaced 
219072 mi

US $292
replaced battery 
59100 mi

US $2200
Right headlight dim after engine replaced. 

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2002 Mazda MX-5 Miata 2dr Convertible

129000 mi

US $600
Inmobilizer blocked; change of complete system needed. 

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2001 Mazda Miata MX-5 2dr Convertible

142-horsepower 1.8L I4 6-speed manual RWD

67000 mi

US $40
Replaced broken driver’s side fog light 
111600 mi

C $1070
RS window cables / motor / controls replaced 
113460 mi

C $260
dry plate battery expired after 55000 km and 4 yrs 
21300 mi

US $100
New battery 

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2001 Mazda Miata MX-5 2dr Convertible

142-horsepower 1.8L I4 5-speed manual RWD

108200 mi

US $100
Alternator went bad. Replaced 

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2001 Mazda MX-5 Miata

Engine not specified

160000 mi

US $400
Replace A/C system - compressor, expansion valve, dryer 

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1999 Mazda Miata MX-5

Engine not specified

58000 mi

US $90
Battery dead - replaced 

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1999 Mazda Miata MX-5 2-door

4-cylinder manual 2WD

88000 mi

US $700
Automatic window would only go down half way, slowly. Shop replaced regulator and motor. Seemed like an expensive repair--but works smoothly and quickly now. 
137600 mi

US $80
Replaced a broken radiator fan that turns on when the AC is activated. 
108000 mi

US $225
Oem alternator 108k miles and 19 years old..battery light was intermittently on..not dependent on rpms..drove 3 times 20 mile or less trips until I got alternator in hand. Easy fix 

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1999 Mazda MX-5 Miata

Engine not specified

213000 mi

US $80
Alternator & Battery replaced. Car died driving on the highway. Cabin fuses also needed to be replaced, the stereo and OBD-II didn't read. 
213200 mi

US $60
New alternator failed fairly quickly, replaced again (this time under warranty). My previous alternator died due to a blown diode. The mechanic said that at near redline, the 99s send more voltage than normal. 

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1999 Mazda MX-5 Miata 2-door

4-cylinder manual 2WD

147000 mi

US $5
Heater bypass tube. 
150000 mi

US $247
Headlight bulbs  
210000 mi

US $27
headlight bulbs 
210300 mi

US $325
brake rotors and pads and alternator 
57000 mi

US $33
Power window switch broken. New part ordered and paid for, but not installed. Installed power window switch that had been previously ordered. 
75500 mi

US $920
Alternator broken and replaced. Accessory drive belts also replaced. Battery was run down when alternator failed, and could not start car after driving it to dealer. Car had to be pushed after arriving. Was informed that it was not holding charge well, and replacement recommended. 
57000 mi

US $175
AC didn't work. Freon was gone despite being recharged only 2 yrs ago. No obvious leaks found. Recharged with coolant + leak detector dye and asked to return after ~500 miles running with AC. Dye should then indicate any leaks. 
57000 mi Brought car back in to check on AC leak, No leakage found. Suggested bringing car in again at some point in the future to recheck. 
231000 mi

US $300
Low output. Replaced with Duralast Lifetime rebuilt alt. 

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1996 Mazda Miata MX-5 2-door

4-cylinder manual 2WD

55000 mi

US $120
replaced battery 

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1995 Mazda MX-5 Miata 2-door

4-cylinder manual 2WD

5900 mi

US $30
Replaced starter. Starter originally installed wouldn't crank when hot. 

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