2021 Mazda 3 Sport

Introduction: The 2021 Mazda 3 Sport is a compact hatchback that offers a sporty driving experience and a well-equipped interior. It comes with a variety of engine and transmission options, including a 186-horsepower 2.5-liter four-cylinder engine mated to a six-speed automatic transmission, a 250-horsepower 2.5-liter turbocharged four-cylinder engine mated to a six-speed automatic transmission, and a 155-horsepower 2.0-liter four-cylinder engine mated to a continuously variable transmission (CVT). Drivers appreciate the Mazda 3 Sport’s responsive handling and comfortable ride, but some have reported issues with certain components.

Engine

2.5L Four-Cylinder Engine

• Excessive Oil Consumption: The engine may consume an excessive amount of oil, leading to low oil levels and potential engine damage.
• Description/Symptoms: Low oil level warning light illuminates; blue smoke from exhaust; engine knocking
• Solution: Replace piston rings; update engine software
• Estimated Cost to Fix: $2,000 - $4,000+
• Recalls: NHTSA Campaign Number 21V363000

2.5L Turbocharged Four-Cylinder Engine

• Turbocharger Failure: The turbocharger may fail prematurely, resulting in reduced engine power and turbocharger noise.
• Description/Symptoms: Loss of power; turbocharger whine; check engine light
• Solution: Replace turbocharger
• Estimated Cost to Fix: $1,500 - $2,500+
• Recalls: None Found

Transmission

Six-Speed Automatic Transmission

• Shifting Issues: The transmission may experience rough shifting, slipping, or delayed engagement.
• Description/Symptoms: Jerking or shuddering during shifts; transmission slipping out of gear; difficulty engaging gears
• Solution: Replace transmission fluid and filter; reprogram transmission control module; replace torque converter
• Estimated Cost to Fix: $500 - $3,000+
• Recalls: None Found

Continuously Variable Transmission (CVT)

• Hesitation and Stalling: The CVT may hesitate or stall during acceleration or when coming to a stop.
• Description/Symptoms: Hesitation or jerky acceleration; stalling at low speeds; check engine light
• Solution: Update transmission software; replace transmission control module
• Estimated Cost to Fix: $500 - $2,000+
• Recalls: None Found

Suspension

No Issues Found

Electrical

Battery Discharge: The battery may discharge prematurely, leaving the vehicle unable to start.

• Description/Symptoms: Difficulty starting; dead battery; electrical system malfunctions
• Solution: Replace battery; inspect electrical system for parasitic drain; update software
• Estimated Cost to Fix: $100 - $500+
• Recalls: None Found

Exterior

Tail Light Condensation: Moisture may accumulate inside the tail lights, causing condensation and impaired visibility.

• Description/Symptoms: Water droplets or condensation visible inside tail lights
• Solution: Replace tail light assembly
• Estimated Cost to Fix: $200 - $500+
• Recalls: None Found

Interior

Infotainment System Lag: The infotainment system may experience lag or freezing, making it difficult to use.

• Description/Symptoms: Slow response to inputs; freezing or crashing of system; blank screen
• Solution: Update software; replace infotainment module
• Estimated Cost to Fix: $500 - $1,500+
• Recalls: None Found

Summary: The 2021 Mazda 3 Sport is a reliable vehicle overall, but it has experienced some issues that range in severity and cost. The engine issues, in particular, can be costly to repair. However, many owners are satisfied with the vehicle’s overall performance and features.