Is the 2018 Mazda MX-5 reliable?

The 2018 Mazda MX-5 has 5 complaints filed with NHTSA (0.6x the segment average). Our reliability verdict: excellent. Most common issue: BODY/STRUCTURE problems.

What are common problems with the 2018 Mazda MX-5?

Top problems: BODY/STRUCTURE (1 complaints, avg repair $500); ELECTRICAL (1 complaints, avg repair $500); ENGINE (1 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2018 Mazda MX-5?

Yes, there are 3 recall(s): POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM), FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP, AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE:SOFTWARE. Contact any Mazda dealer to verify if recalls have been completed on your specific vehicle.

How much does it cost to fuel a 2018 Mazda MX-5?

The 2018 Mazda MX-5 gets 29 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $1655. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2018 Mazda MX-5?

Estimated US average full-coverage insurance for the 2018 Mazda MX-5 is approximately $2,377/year (coupe-sports class). Actual quotes vary heavily by state, driver age, driving record, and credit — see the interactive insurance estimator on this page for state-specific pricing.

2018 Mazda MX-5

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2018 Mazda MX-5 has 5 owner complaints filed with NHTSA — that's 0.6x the segment average of 8. The most common issue is body/structure problems (20% of all complaints), specifically: started from creak noise as car start to move, accelerate or stop. now it developed to some ticking noise every time car accelerate or decelerate. the car is only at about 9700 mi went to spreen mazda loma linda ca to inspect the car. they said it is normal and come back when it gets worse. There are 3 recalls issued for this model year.

Total Complaints

Recalls Issued

—/5

Safety Stars

0.6x

vs Segment Avg

Known Problems(top 5 of 5)

BODY/STRUCTURE

1 complaints

20%

• STARTED FROM CREAK NOISE AS CAR START TO MOVE, ACCELERATE OR STOP. NOW IT DEVELOPED TO SOME TICKING NOISE EVERY TIME CAR ACCELERATE OR DECELERATE. THE CAR IS ONLY AT ABOUT 9700 MI WENT TO SPREEN MAZDA LOMA LINDA CA TO INSPECT THE CAR. THEY SAID IT IS NORMAL AND COME BACK WHEN IT GETS WORSE

Typical onset: 50K miles Est. repair: $500

“STARTED FROM CREAK NOISE AS CAR START TO MOVE, ACCELERATE OR STOP. NOW IT DEVELOPED TO SOME TICKING NOISE EVERY TIME CAR ACCELERATE OR DECELERATE. THE CAR IS ONLY AT ABOUT 9700 MI WENT TO SPREEN MAZDA LOMA LINDA CA TO INSPECT THE CAR. THEY SAID IT IS NORMAL AND COME BACK WHEN IT GETS WORSE”

— NHTSA complaint filing

Recalls (3)

POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)01/02/2019

Mazda North American Operations (Mazda) is recalling certain 2016-2019 MX-5 (Miata) vehicles with automatic transmissions. Due to incorrect programming of the Transmission Control Module (TCM), certain conditions may cause the vehicle to unexpectedly downshift and abruptly decelerate.

Risk: If the vehicle abruptly downshifts, the driver may lose control of the vehicle, increasing the risk of a crash.

Fix: Mazda will notify owners, and dealers will reprogram the TCM with corrected software, free of charge. The recall began March 14, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda's number for this recall is 3019A.

Fuel Cost Calculator for 2018 Mazda MX-5

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$1,656

Per month

$138

Per mile

13.8¢

MPG

City driving (worst-case MPG)

$1,847/yr

Highway driving (best-case MPG)

$1,372/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today

Show:

Current

$4.00

5-year low

$2.78

5-year high

$5.01

Since 2021

+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2018 Mazda MX-5

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.

Your state (affects local premium average)

Full coverage / year

$2,377

Full coverage / month

$198

Liability only / year

$754

vs US avg

+42%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (coupe-sports)1.42x

× theft risk1.00x

× safety rating1.00x

× vehicle age1.00x

= Full coverage estimate$2377

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Mazda MX-5 Service Intervals

Oil change

8K mi / 12 mo

Tire rotation

8K mi

Brake fluid

24 months

Transmission fluid

60K mi

Engine coolant

120K mi

Spark plugs

60K mi

Cabin air filter

15K mi

Engine air filter

30K mi

Differential (AWD/4WD)

60K mi

SkyActiv-G naturally aspirated engines. AWD models need transfer case and rear differential service every 60K.

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Mazda New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)

3 yr / 36K mi

Powertrain

5 yr / 60K mi

Hybrid/EV battery

8 yr / 100K mi

Corrosion (rust perforation)

5 yr / unlimited mi

Roadside assistance

3 yr / 36K mi

These are the terms for a new Mazda. If you're buying a used 2018 MX-5, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Mazda dealer for VIN-specific remaining warranty.

Estimated Repair Costs

BODY/STRUCTURE(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

ENGINE(~50K mi)

$500

SPEED CONTROL(~50K mi)

$500

TRANSMISSION(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 5 owner complaints for this specific year, here's what to check or ask about:

☐
BODY/STRUCTURE: STARTED FROM CREAK NOISE AS CAR START TO MOVE, ACCELERATE OR STOP. NOW IT DEVELOPED TO SOME TICKING NOISE EVERY TIME CAR ACCELERATE OR DECELERATE. THE CAR IS ONLY AT ABOUT 9700 MI WENT TO SPREEN MAZDA LOMA LINDA CA TO INSPECT THE CAR. THEY SAID IT IS NORMAL AND COME BACK WHEN IT GETS WORSE
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: I'VE OWNED MY 2018 MAZDA MX-5 FOR ABOUT TWO YEARS. THE PROBLEMS SLOW STARTED ARISING. AT FIRST I HADN'T NOTICED, BUT WHEN GOING IN AND OUT OF 'DRIVE' THE VEHICLE FELT LIKE IT WAS EITHER GOING TO STALL OR ACCELERATE. I HAD INITIALLY THOUGHT WAS BECAUSE IT'S A 'SPORTS CAR.' IN AUGUST OF 2020 THE WINDO
Typically appears around 50K miles. Repair cost ~$500
☐
ENGINE: I'VE OWNED MY 2018 MAZDA MX-5 FOR ABOUT TWO YEARS. THE PROBLEMS SLOW STARTED ARISING. AT FIRST I HADN'T NOTICED, BUT WHEN GOING IN AND OUT OF 'DRIVE' THE VEHICLE FELT LIKE IT WAS EITHER GOING TO STALL OR ACCELERATE. I HAD INITIALLY THOUGHT WAS BECAUSE IT'S A 'SPORTS CAR.' IN AUGUST OF 2020 THE WINDO
Typically appears around 50K miles. Repair cost ~$500
☐
SPEED CONTROL: I'VE OWNED MY 2018 MAZDA MX-5 FOR ABOUT TWO YEARS. THE PROBLEMS SLOW STARTED ARISING. AT FIRST I HADN'T NOTICED, BUT WHEN GOING IN AND OUT OF 'DRIVE' THE VEHICLE FELT LIKE IT WAS EITHER GOING TO STALL OR ACCELERATE. I HAD INITIALLY THOUGHT WAS BECAUSE IT'S A 'SPORTS CAR.' IN AUGUST OF 2020 THE WINDO
Typically appears around 50K miles. Repair cost ~$500
☐
RECALLS: Verify all 3 recalls have been completed — free at any Mazda dealer
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)