2025 Mazda 3: known problems and what to check

Known faults on the 2025 Mazda 3

Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.

• DPF and emissions faults (diesel)

  Diesel

  Diesels have had particulate filter warnings and emissions system problems.

  At the viewing: Watch for warning lights.

  Source: What Car?: used Mazda 3 (2019 on) reliability

• Minor electrical faults

  Petrol

  Petrol cars have occasional minor faults with the infotainment screen and sensor warnings. Make sure the latest infotainment update is fitted.

  At the viewing: Use the screen and check for warnings.

  Source: What Car?: used Mazda 3 (2019 on) reliability

What to check on a 2025 car

• Warranty left

  Ask for the date it was first registered and check how much of the maker’s warranty is left, and that it transfers to you. Electric and hybrid batteries usually have a longer, separate warranty.

• Servicing

  Servicing on time with the maker’s schedule keeps the warranty valid. Ask for the service book or the dealer’s digital record.

• Finance

  Nearly new cars are often still on finance. A history check shows outstanding finance, and whether it has been written off or stolen.

• Recalls

  Ask whether any recall work has been done, and check the reg on GOV.UK’s free recall checker.

• Logbook (V5C)

  The name and address should match the seller, and the VIN on the V5C should match the car.

Check for recalls on GOV.UK