At a Glance
The Mazda Cx-30 has 4 identified common problems across 1 generation, with the Mk1 (2019-2025) being the most affected generation and tyres & wheels the most common problem category. Based on 22K MOT tests from DVSA data.
Problems are patterns in the DVSA data that occur significantly more often on a specific model than the UK average — confirmed at 99% statistical confidence. Read our DVSA MOT data methodology →
Below: generation-by-generation comparison of Mazda Cx-30 common problems, MOT failure types, and pass-rate data drawn from DVSA records. Click any generation to see fuel- and engine-specific fault patterns, mileage-banded repair guidance, and the most common MOT failures testers record.
MOT Tests & Failures by Generation
Mazda Cx-30 generations by MOT tests, failures, and identified problems from DVSA data
Hover over each bar for a full breakdown. Tap any bar to view that generation's problems.
Showing total MOT tests, failures, and known problems per make. Hover over each bar for a full breakdown.
Tell Us About Your Problem
Help other Mazda Cx-30 owners — report a problem and we'll add it to the database
Tell Us About Your Problem
Help other Mazda Cx-30 owners — report a problem and we'll add it to the database
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Browse Mazda Cx-30 Generations
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Most Common Mazda Cx-30 MOT Failures
Every reason Mazda Cx-30 vehicles fail their MOT, ranked by frequency. Select an individual year to see only that year’s failures, or stay on ‘All time’ for the combined picture across our 20 years of DVSA data. Scroll inside the table for the full list.
| # | Failure | % of failures |
|---|---|---|
| 1 | Wiper blades deteriorated | 24.00% |
| 2 | Tyre tread depth below limit | 20.29% |
| 3 | Brake pads or linings worn | 15.14% |
| 4 | Tyre condition | 8.14% |
| 5 | Shock absorber worn or leaking | 7.07% |
| 6 | Brake disc or drum worn | 4.57% |
| 7 | Brake performance below minimum | 3.29% |
| 8 | Windscreen damage affecting view | 3.14% |
| 9 | Spark ignition emissions above threshold | 1.21% |
| 10 | Indicator fault | 1.00% |
| 11 | Mirror damaged or missing | 1.00% |
| 12 | Position lamp not working | 0.86% |
| 13 | Suspension joint or bush worn | 0.86% |
| 14 | Parking brake performance below minimum | 0.71% |
| 15 | Seat belt condition | 0.71% |
| 16 | Flexible brake hose damaged | 0.64% |
| 17 | Rear fog lamp not working | 0.64% |
| 18 | Electronic stability control fault | 0.57% |
| 19 | Battery loose or leaking | 0.43% |
| 20 | Brake fluid level low or contaminated | 0.43% |
| 21 | Brake fluid reservoir fault | 0.43% |
| 22 | Headlamp fault | 0.43% |
| 23 | Track rod end worn | 0.43% |
| 24 | ABS fault | 0.36% |
| 25 | Driveshaft fault | 0.36% |
| 26 | Ball joint dust cover split | 0.36% |
| 27 | Bumper damaged or insecure | 0.29% |
| 28 | Compression ignition emissions above threshold | 0.29% |
| 29 | Daytime running lamp not working | 0.29% |
| 30 | Suspension linkage fault | 0.29% |
| 31 | Steering rack fault | 0.14% |
| 32 | Stop lamp not working | 0.14% |
| 33 | Tyre size or type not matched | 0.14% |
| 34 | Wheel bearing worn | 0.14% |
| 35 | Airbag warning light on | 0.07% |
| 36 | Bonnet catch or hinge fault | 0.07% |
| 37 | Brake fluid leak | 0.07% |
| 38 | Brake master cylinder fault | 0.07% |
| 39 | Coil spring broken or corroded | 0.07% |
| 40 | Electronic parking brake fault | 0.07% |
| 41 | Engine oil leak | 0.07% |
| 42 | Exhaust system fault | 0.07% |
| 43 | Fuel tank corroded or leaking | 0.07% |
| 44 | Number plate lamp not working | 0.07% |
| 45 | Propshaft fault | 0.07% |
| 46 | Reversing lamp not working | 0.07% |
| 47 | Suspension arm worn or corroded | 0.07% |
| 48 | Suspension linkage attachment bracket or mounting corroded | 0.07% |
| 49 | Suspension rod worn or corroded | 0.07% |
| 50 | Transmission drive belt fault | 0.07% |
| 51 | Suspension mounting corroded | 0.07% |
Showing all 51 reasons — scroll inside the table for the full list.
Mazda Cx-30 MOT Failures by Category
Total MOT failure occurrences for the Mazda Cx-30, grouped by category. Same data as the failures table above — just sliced by category instead of fault title. Hover a slice for the top failures in each category.
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Frequently Asked Questions
What are the most common Mazda Cx-30 problems?
Based on analysis of 22K Mazda Cx-30 MOT tests from DVSA data, we have 4 identified common problems across 1 generation. The most frequently flagged issue is "Tyre condition". Tyres & Wheels is the most common problem category.
Which Mazda Cx-30 generation has the most problems?
The Mazda Cx-30 Mk1 (2019-2025) (2019–2025) has the highest number of identified common problems (4). Click the generation card above for the full breakdown.
How is this data calculated?
We analyse anonymised DVSA MOT test records under the Open Government Licence. An issue is classified as a "Common Problem" when it occurs significantly more often on a specific model than the UK average, confirmed at 99% statistical confidence. Read the full methodology page for details.
Can I report a problem with my Mazda Cx-30?
Yes — use the "Tell Us About Your Problem" form on this page. Your report helps other Mazda Cx-30 owners spot problems early. All submissions are reviewed before being added to the public database.
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