2018 Mazda MX-5

The 2018 Mazda MX-5 Miata is a popular roadster known for its engaging driving dynamics and classic sports car feel. It comes equipped with a 2.0-liter inline-4 engine producing 155 horsepower and 148 lb-ft of torque. Transmission options include a 6-speed manual and a 6-speed automatic. Owners often praise the Miata for its handling, affordability, and fuel efficiency. Common dislikes include the limited cargo space, tight interior, and road noise.

Engine

2.0L Inline-4

• Excessive Oil Consumption
  • Description/Symptoms: Some owners have reported higher than expected oil consumption, requiring them to add oil between scheduled oil changes. This can manifest as the oil light illuminating or noticing a drop in oil level on the dipstick.
  • Solution: While there isn’t a single definitive fix, some owners have had success with using a heavier weight oil or trying different brands. In more severe cases, engine repair or replacement may be necessary.
  • Estimated Cost to Fix: $100 - $7,000+ (depending on the severity, fix and if a new engine replacement is needed)
  • Recalls: None Found

Transmission

6-Speed Manual

• Grinding when shifting into 2nd gear.
  • Description/Symptoms: Some owners have reported experiencing a grinding noise when shifting into 2nd gear, particularly when the transmission is cold. This can be caused by worn synchronizers.
  • Solution: Replacing the synchronizers or rebuilding the transmission. Some owners have also had success with changing the transmission fluid to a higher quality synthetic fluid.
  • Estimated Cost to Fix: $200 - $2,000+
  • Recalls: None Found

6-Speed Automatic

• No Issues Found

Suspension

• Rear shock absorbers leaking
  • Description/Symptoms: Leaking shock absorbers are sometimes found with higher mileage.
  • Solution: Replace shock absorbers
  • Estimated Cost to Fix: $300 - $1,000+
  • Recalls: None Found

Electrical

• Infotainment System Freezing/Crashing
  • Description/Symptoms: The Mazda Connect infotainment system can occasionally freeze, crash, or become unresponsive. This can affect access to navigation, audio, and other vehicle functions.
  • Solution: Performing a system reset is often the first step. Software updates from Mazda may also address these issues. In some cases, the unit may need to be replaced.
  • Estimated Cost to Fix: $0 - $1,200+ (depending on if a reset fixes the problem or if a new unit is needed)
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Some owners have reported issues with the car’s battery draining prematurely, particularly if the car is not driven frequently. This can lead to difficulty starting the car or requiring a jump start.
  • Solution: Ensuring all accessories are turned off when the car is not in use, replacing the battery, or investigating potential parasitic draws in the electrical system.
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found

Exterior

• Convertible Top Leaks
  • Description/Symptoms: Some owners have experienced water leaks around the convertible top, particularly near the windows or seals. This can be more pronounced in heavy rain.
  • Solution: Adjusting the top’s latching mechanism, replacing the seals, or applying a waterproof sealant.
  • Estimated Cost to Fix: $50 - $500+ (depending on the fix needed)
  • Recalls: None Found

Interior

• Seat Height Adjustment Failure (Driver’s Seat)
  • Description/Symptoms: The driver’s seat height adjustment mechanism may fail, preventing the seat from being raised or lowered properly.
  • Solution: Replacing the seat height adjustment mechanism or the entire seat frame.
  • Estimated Cost to Fix: $200 - $800+
  • Recalls: None Found

Summary

The 2018 Mazda MX-5 Miata is generally a reliable vehicle, but owners have reported some common issues. Engine issues, such as excessive oil consumption, can be costly if repairs are needed. Electrical issues with the infotainment system and battery drain are also fairly common annoyances. Convertible top leaks and seat adjustment failures round out the list of common issues. While most problems are not safety-critical, they can affect the overall ownership experience and potentially lead to moderate repair costs. Potential buyers should be aware of these potential issues and inspect used vehicles carefully.