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2021 Mazda CX-3

The 2021 Mazda CX-3 is a subcompact SUV known for its sporty handling, upscale interior, and attractive styling. It comes standard with a 2.0-liter four-cylinder engine producing 148 horsepower and 146 lb-ft of torque, paired with a six-speed automatic transmission. While praised for its driving dynamics and premium feel, some common criticisms include its small rear seats and limited cargo space compared to competitors. Let’s delve into some of the reported issues owners have experienced:

Engine

2.0L Skyactiv-G Inline-4

  • Engine Knocking/Pinging
    • Description/Symptoms: Some owners have reported hearing knocking or pinging noises from the engine, particularly during acceleration or under load. This may be more noticeable when using lower octane fuel.
    • Solution: Using premium fuel (higher octane) may alleviate the issue. In some cases, a software update from Mazda may be available to address the engine management system.
    • Estimated Cost to Fix: $0 (software update if covered by warranty) - $100+ (for premium fuel consistently)
    • Recalls: None Found
  • Oil Leaks
    • Description/Symptoms: Some owners have reported oil leaks, particularly around the valve cover gasket or the front crankshaft seal. Symptoms include visible oil leaks, a burning oil smell, or low oil levels.
    • Solution: Replacing the affected gaskets or seals.
    • Estimated Cost to Fix: $150 - $500+
    • Recalls: None Found

Transmission

6-Speed Automatic

  • Harsh Shifting
    • Description/Symptoms: Some owners have noted occasional harsh or jerky shifting, especially during downshifts or at lower speeds.
    • Solution: A software update for the transmission control module (TCM) might resolve the issue. In some cases, a transmission fluid flush or replacement might be recommended.
    • Estimated Cost to Fix: $0 (software update if covered by warranty) - $200+ (transmission fluid flush/replacement)
    • Recalls: None Found
  • Delayed Engagement
    • Description/Symptoms: Some owners have reported a slight delay in engagement when shifting from Park to Drive or Reverse.
    • Solution: In some cases, a software update for the transmission control module (TCM) might resolve the issue.
    • Estimated Cost to Fix: $0 (software update if covered by warranty)
    • Recalls: None Found

Suspension

  • No Issues Found

Electrical

  • Infotainment System Freezing/Crashing
    • Description/Symptoms: The Mazda Connect infotainment system can occasionally freeze, become unresponsive, or crash. This may require a system reboot.
    • Solution: Software updates from Mazda can address these issues. A hard reset of the system might also provide a temporary fix.
    • Estimated Cost to Fix: $0 (software update if covered by warranty)
    • Recalls: None Found
  • Backup Camera Failure
    • Description/Symptoms: Some owners have reported intermittent or complete failure of the backup camera.
    • Solution: Check camera connection, repair/replace camera.
    • Estimated Cost to Fix: $100 - $400+
    • Recalls: None Found

Exterior

  • No Issues Found

Interior

  • Rattling Noises
    • Description/Symptoms: Some owners have reported rattling noises emanating from the dashboard or door panels, particularly when driving on rough roads.
    • Solution: Locating and securing the source of the rattle (loose trim pieces, wiring harnesses, etc.).
    • Estimated Cost to Fix: Varies, can be DIY or $100+ at a shop.
    • Recalls: None Found

Summary

The 2021 Mazda CX-3 is generally a reliable vehicle, but some owners have reported issues with the engine, transmission, electrical system, and interior. The most common complaints seem to revolve around the infotainment system and occasional engine/transmission quirks. The cost of repairs can vary depending on the severity of the problem, but software updates and minor fixes can often be done at little to no cost. Overall, the issues reported do not seem to be major or widespread, but potential buyers should be aware of them and check for any symptoms during a pre-purchase inspection.

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