91.3%
Mazda CX-30 pass rate
Used Mazda CX-30 buying guide
In 2025, Mazda CX-30 cars passed 91.3% of 20,897 initial MOT tests, 19 points above the 72.3% UK average. Here is where it fails and what to check before you buy.
Looking at a specific CX-30? Check its finance, write-off, stolen, mileage and keeper history. £15, no account needed.
Mazda CX-30 MOT record in brief
Initial MOT tests in 2025, retests excluded.
72.3%
UK average, all cars
+19
percentage points above average
Ranked on pass rate the CX-30 sits 21st of 575 models in the data. Mazda as a brand averaged 72.7%, so this model runs 18.6 points ahead of its own brand.
A pass rate is not a reliability score. The full Mazda CX-30 MOT record has the pass rate by age, every common failure and how the CX-30 compares with similar cars.
CX-30 fuel types
Petrol was the most common fuel among Mazda CX-30 cars tested in 2025. None of the tested examples were diesel.
Where the CX-30 fails its MOT
Where Mazda CX-30 cars that failed their 2025 MOT were marked down, as a share of all recorded failure items.
The specific items testers recorded most often were wipers does not clear the windscreen effectively (16.1%), condition has a cut in excess of the requirements deep enough to reach the ply or cords (11.6%) and tread depth below requirements of 1.6mm (11.3%). See every common CX-30 MOT failure.
These are DVSA failure records across every Mazda CX-30 that failed, not a claim that every CX-30 has these problems.
What should you check when buying a used CX-30?
The areas above, most common first, and what an MOT tester looks at in each.
1
Tyres
Check tread depth across the full width of every tyre (the legal minimum is 1.6mm), and look for cuts, bulges and uneven wear. 29.4% of CX-30 failure items.
2
Visibility
Check the windscreen for chips or cracks in the driver's view, and that the wipers and washers clear it properly. 23.9% of CX-30 failure items.
3
Brakes
Make sure the pedal feels firm, the car stops in a straight line, the handbrake holds on a slope and no brake warning light is showing. 18.7% of CX-30 failure items.
4
Lamps, reflectors and electrical equipment
Walk round with every light on: headlights, brake lights, indicators, fog lights and the number plate lamp. Check no warning lights stay on after starting. 13% of CX-30 failure items.
5
Suspension
Listen for knocks over bumps, check the car sits level, and look for leaking shock absorbers and split rubber gaiters. 7.9% of CX-30 failure items.
None of this replaces the car's own record. Run a free MOT history check on the registration to see every test, advisory and recorded mileage for that car.
What the MOT record doesn't tell you
Knowing Mazda CX-30 failures cluster around tyres and visibility tells you what to inspect. It tells you nothing about whether the car is safe to buy. An MOT does not show money still owed on the car, a write-off, a theft record or a clocked odometer.
Check the exact CX-30 you are looking at. One £15 report, instant results, backed by a £30,000 data guarantee. More on the Mazda history check.
- Outstanding finance
- Write-off records
- Stolen markers
- Mileage history
- Previous keepers
Other used Mazda models
The most-tested Mazda models in 2025, with how their MOT pass rate compares with the CX-30.
Used Mazda CX-30 FAQs
Is the Mazda CX-30 reliable?
MOT data does not measure reliability. It records whether a car met the roadworthiness standard on the day of its test. What it does show is a 91.3% first-time pass rate for the Mazda CX-30 across 20,897 tests in 2025, above the 72.3% average for all cars.
What should I check before buying a used Mazda CX-30?
On the car itself, start with the areas it most often fails on: tyres, visibility and brakes. Then check the individual car's history: outstanding finance, insurance write-off records, stolen markers, mileage and previous keepers. None of these appear in the MOT record or on the V5C.
How do I check a Mazda CX-30's history?
Enter the registration of the specific car. A Carpeep car history check reports outstanding finance, write-off category, stolen markers, mileage history, previous keepers, MOT and tax status, import and export markers and scrapped status in one £15 report.
MOT figures are aggregated from the DVSA MOT Anonymised data set for 2025 (class 4 initial tests, retests excluded), licensed under the Open Government Licence v3.0. MOT results describe roadworthiness at test, not mechanical reliability.