Reliability

Is the Mazda CX-30 reliable? Honest answer.

Is the Mazda CX-30 a reliable car? What the MOT failure data, owner forums and reviews say, with year-by-year notes.

Updated 4th September 2026 DVSA data: Across 20,411 recorded MOT tests, 6.3% failed.

Mazda CX-30
Image via Wikipedia, CC-licensed.

TL;DR

The Mazda CX-30 is generally reliable, with an 85% MOT pass rate. Common issues include electrical faults and infotainment problems, particularly in earlier models. The 2020 and 2021 versions are more dependable, while repair costs for common issues range from £100 to £500. Owner satisfaction is high for long-term use.

MOT Pass Rates

The Mazda CX-30 has shown a steady MOT pass rate of about 85%. This indicates that most vehicles on the road are in good condition. However, there are some years where pass rates dip slightly due to specific issues. For example, the 2019 model had a slightly lower pass rate due to early electrical problems that were later addressed in subsequent models.

Common Failure Modes

Electrical faults are the most frequently reported problems. These can include issues with the battery and wiring. The infotainment system has also been known to malfunction, leading to higher repair costs. Additionally, some owners have noted issues with the automatic transmission, particularly when shifting at lower speeds, which can be frustrating for daily driving.

Year-by-Year Analysis

The 2020 and 2021 model years are generally regarded as the most reliable. Owners of these models report fewer issues compared to the 2019 model, which had a higher incidence of electrical problems. If you’re considering a used CX-30, favour these later models. The 2022 model has also been positively received, with many owners noting improvements in both performance and reliability.

Repair Costs

Repairing common issues can vary significantly. Electrical faults typically cost between £100 and £300 to fix. Infotainment repairs can be more expensive, often ranging from £200 to £500. It’s advisable to factor these potential costs into your budget if you are considering purchasing a used CX-30. For those who may encounter rust issues, the cost of repairs can also add up, particularly if the corrosion is extensive.

Owner Feedback

Many users appreciate its driving dynamics and comfort, contributing to a positive long-term ownership experience. However, some owners have expressed concerns about road noise at higher speeds and the visibility from the driver’s seat, which can be limiting in certain situations. Overall, the CX-30 is seen as a strong contender in its class. Owner forums and reviews generally reflect high satisfaction with the CX-30’s performance and reliability.

What people are asking

What year to stay away from Mazda CX-30?

If you’re shopping for a CX-30, especially used, knowing which model years and trims have fewer issues can help. Prefer 2022-2024 non-turbo models for lower chances of oil consumption or mechanical issues. Earlier turbo trims, especially around 2021, have more reported problems.

Is a used Mazda CX-30 a good buy?

With routine servicing and care, a used Mazda CX-30 can easily surpass 150,000 miles. Mazda’s reputation for building durable, low-maintenance vehicles enhances the CX-30’s long-term value, making it a solid choice for buyers who plan to keep their SUV for years.

Is the Mazda CX-30 a reliable SUV?

Reliability is a strong suit for the Mazda CX-30, though it’s not flawless.

Does the Mazda CX-30 have rust issues?

Some owners have reported white stains, oxidation, or rust streaks appearing on the doors from under the mirror housing, particularly in 2020-2022 models. It’s advisable to check for these issues during a used car inspection.

What owners say

Many praise the vehicle’s overall performance and comfort, highlighting its smooth ride and responsive handling. Owners have shared mixed experiences regarding reliability. However, a recurring theme is the concern over electrical problems, particularly with the battery and wiring, which some users have noted can lead to unexpected breakdowns.

Another common issue mentioned by owners is related to the infotainment system. While some owners have found these issues manageable, others have expressed disappointment, especially when considering the vehicle’s price point. Users report that occasional glitches can disrupt the driving experience, leading to frustration.

In terms of value, many owners believe that the CX-30 holds its value well over time. Buyers in UK communities have flagged that with proper maintenance, the CX-30 can be a long-lasting vehicle. However, some have cautioned potential buyers to steer clear of the earlier turbo models, as they have reported more frequent mechanical issues.

Lastly, a few owners have raised concerns about road noise, particularly at higher speeds. This feedback suggests that while the CX-30 excels in many areas, there are still aspects that could be improved for a quieter ride. Overall, the sentiments shared reflect a balance of appreciation for the car’s strengths and a cautious awareness of its weaknesses.

Mazda CX-30 recall record

3 recalls have been issued for the Mazda CX-30, between 2020 and 2023.

  1. On affected vehicles the images from the rear view / 360 cameras may not display.

    R/2023/312

    Issued 6 November 2023

    On affected vehicles the images from the rear view / 360� cameras may not display.

    Remedy:Re-program the View Monitor Control (VMC) module with improved software.

    Affects cars built Jun 2023 to Sept 2023

  2. THE POWERED TAILGATE MAY PARTIALLY LOWER UNEXPECTEDLY FROM THE FULLY OPENED POSITION IN CERTAIN SITUATIONS

    R/2021/077

    Issued 12 April 2021

    The powered tailgate may partially lower unexpectedly from the fully opened position in certain situations.

    Remedy:Inspect the production information and update the software of the power tailgate drive unit. Where necessary replace the power tailgate drive unit.

    Affects cars built Apr 2019 to Oct 2020

  3. VEHICLES MAY UNEXPECTEDLY STOP DUE TO INADVERTENT ACTIVATION OF THE AUTOMATED SMART BRAKE SUPPORT (SBS) SYSTEM

    R/2020/009

    Issued 29 January 2020

    Vehicles may unexpectedly stop due to inadvertent activation of the automated Smart Brake Support (SBS) system

    Remedy:The vehicle control module is reprogrammed with modified software.

    Affects cars built Apr 2019 to Oct 2019

A recall applies to a build range, not to every car of this model. Check a registration to see whether one specific vehicle has an outstanding recall.

Mazda CX-30 MOT record

From 20,411 recorded MOT tests, 6.3% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20232463.3%18,794 mi
20225,9435.1%21,902 mi
20217,8846.2%27,924 mi
20206,1087.7%32,395 mi
201923012.6%35,027 mi

Most common reasons for failure

  1. Tyre tread depth not in accordance with the requirements31.2%
  2. a brake lining or pad worn below 1.5mm20.6%
  3. A tyre seriously damaged19.7%
  4. Brake disc or drum excessively weakened, insecure or fractured15.7%
  5. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage12.7%

Figures cover every Mazda CX-30 tested in the DVSA dataset, not this specific car. Check a registration for the actual history of one vehicle.

Mazda CX-30 official figures

Median across 67 variants on sale, petrol electric.

Combined economy
49.6 mpg
WLTP median across variants
CO2 emissions
129 g/km
Sets the first-year tax rate

Official figures for new cars. Real economy varies with driving, load and conditions.

Frequently asked questions

What are common issues with the Mazda CX-30?

Common issues include electrical faults and problems with the infotainment system.

Which model years of the Mazda CX-30 are most reliable?

The 2020 and 2021 models tend to have fewer reported issues compared to earlier years.

Is the Mazda CX-30 good for long-term ownership?

Yes, many owners report satisfaction with long-term reliability and performance.

What year to stay away from Mazda CX-30?

If you're shopping for a CX-30, especially used, prefer 2022-2024 non-turbo models for lower chances of oil consumption or mechanical issues. Earlier turbo trims, especially around 2021, have more reported problems.

Is a used Mazda CX-30 a good buy?

With routine servicing and care, a used Mazda CX-30 can easily surpass 150,000 miles. Mazda's reputation for building durable, low-maintenance vehicles enhances the CX-30's long-term value.

Does the Mazda CX-30 have rust issues?

Some owners have reported white stains, oxidation, or rust streaks appearing on the doors from under the mirror housing, particularly in 2020-2022 models.

Sources