2014 Mazda MX-5 Miata Problems: 5 Known Issues
2014 model year · 8,800+ owner reports · Updated October 2026
According to Au7o's analysis of 8,800+ owner reports, the 2014 Mazda MX-5 Miata has 5 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. The most commonly reported issue is Soft Top Wear and Rear Window Delamination with 5,000 owner reports. Across all issues with published estimates, repair costs range from $80 to $2,500. DIY maintenance guides at au7o.io.
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Frequently Asked Questions
What are the most common Mazda MX-5 Miata problems?
According to Au7o's analysis of 8,800+ owner reports, the 2014 Mazda MX-5 Miata has 5 documented issues. The most frequently reported are: Soft Top Wear and Rear Window Delamination, Rear Main Seal Oil Leak, Electric Power Steering (EPS) Failure and Warning Light (NC). None are rated critical, but regular maintenance is recommended.
Is the Mazda MX-5 Miata reliable?
The 2014 Mazda MX-5 Miata has 5 known issues documented across 8,800+ owner reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Mazda MX-5 Miata problems?
Repair costs for known Mazda MX-5 Miata issues range from $0 to $2,500, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 1990-2025 Mazda MX-5 Miata Soft Top Wear and Rear Window Delamination?
Miata soft tops deteriorate over time from UV exposure, flexing during operation, and age. Vinyl tops develop cracks and tears, cloth tops fade and shrink. The rear plastic window (NA) or glass window (NB/NC/ND) can delaminate from the top material, causing water leaks and reduce… Repairs typically run $300-$1,500. Severity: medium.
What is the 1990-2015 Mazda MX-5 Miata Rear Main Seal Oil Leak?
All generations of Miata (NA through NC) are prone to rear main seal leaks as the engine ages. Oil seeps from the crankshaft rear seal, dripping onto the clutch housing and eventually contaminating the clutch disc. High mileage engines and infrequent oil changes accelerate seal d… Repairs typically run $400-$1,200. Severity: medium.
What is the 2006-2015 Mazda MX-5 Miata Electric Power Steering (EPS) Failure and Warning Light (NC)?
The NC Miata uses an electric power steering system that can fail due to a faulty steering angle sensor, EPS control module, or motor. When the system fails, the EPS warning light illuminates and power assist is lost, making the steering very heavy at low speeds. While the car re… Repairs typically run $200-$1,200. Severity: medium.
What is the 2006-2015 Mazda MX-5 Miata NC 6-Speed Cold 1-2 Shift Grind and Second Gear Synchro Wear?
The NC six-speed manual is widely reported to baulk and crunch on the 1-2 upshift when cold, and on many cars the second-gear synchro degrades until the grind persists warm. Contributing factors documented by owners are the factory gear oil's poor cold flow, a clutch release poin… Repairs typically run $80-$2,500. Severity: medium.
What is the 2006-2015 Mazda MX-5 Miata NC Convertible Top Rain-Rail Drain Blockage Flooding Footwells and Trunk?
The NC soft top channels water from the rain rail into two drains behind the seats that route down through the body and exit under the car. Pollen, leaves and acorns pack the drain screens, and the flexible exit tube frequently pops off its spigot inside the quarter panel. Once b… Repairs typically run $0-$400. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.