Mazda Cx-30 MOT pass rate: 93.6% (4,440 tests, 2025)

The Mazda Cx-30 passed 93.6% of its 4,440 MOT tests in 2025 — 16.1 points above the UK average of 77.5%. The median tested example was 4 years old with 27,514 miles on the clock.

93.6%Pass rate (2025)

4,440MOT tests analysed

27,514 miMedian mileage at test

4 yrsMedian age at test

How the Cx-30 compares

Mazda Cx-30

93.6%

UK average (all Class 4 vehicles)

77.5% across 33.1 million tests

Mazda average (all models)

77.3%

What fails most on the Mazda Cx-30

Across failed and rectified tests in 2025, these vehicle systems produced the most defects on the Cx-30:

#	System	Defects recorded	Share
1	Tyres	141	43.0%
2	Brakes	128	39.0%
3	Visibility	59	18.0%

Pre-MOT checklist for Cx-30 owners

Based on the failure profile above, ten minutes with a torch before your test removes the most likely fail items:

Check tread with the 20p test and inspect sidewalls for cracking — tyres close to the limit are the country’s most common advisory
Feel for a spongy pedal or pulling to one side; check pad wear through the wheel spokes if visible
Replace smeared wiper blades and top up washer fluid — both are test items

Check the engine before the tester does

A stored fault code with the engine light on is an automatic Major defect. Scan and clear resolved faults before booking.

Topdon OBD2 scannersTopdon diagnostic scanners with full-system readouts
XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
Autel UK testersAutel professional-grade diagnostic testers

Cx-30 pass rate by registration year

Registration year	Tests	Pass rate	Vs same-age	Median mileage
2020	3,469	93.0%	+3.1 pts	25,198
2021	3,647	94.3%	+3.9 pts	25,150

Check a specific Cx-30 before you buy

Pass rates describe the model; they can’t tell you about the one car you’re looking at. Run its plate through our free MOT history check to see its personal record of failures, advisories and mileage readings.

Other Mazda models

273.1% pass rate · 113,741 tests 373.9% pass rate · 103,889 tests Mx-578.2% pass rate · 87,222 tests Cx-581.1% pass rate · 57,112 tests 673.6% pass rate · 55,083 tests Cx-386.5% pass rate · 24,672 tests 560.4% pass rate · 8,754 tests Bongo59.5% pass rate · 8,682 tests

FAQs

What is the MOT pass rate for a Mazda Cx-30?

In 2025, 93.6% of 4,440 first MOT tests on the Mazda Cx-30 were passes (UK average: 77.5%). Data: DVSA anonymised MOT results.

What does the Cx-30 fail its MOT on most?

The biggest defect group is tyres (43.0% of its recorded defects), followed by brakes.

Is the Mazda Cx-30 reliable?

MOT pass rate is one lens on durability: at 93.6% it performs above the national average at a median age of 4 years and 27,514 miles. Always check the individual car's history too.

Source: DVSA Anonymised MOT tests and results, 2025 extract (Class 4 initial tests only; retests excluded). Contains public sector information licensed under the Open Government Licence v3.0. Figures rounded to one decimal place.