MOT cost .

Mazda

CX 30 SE L Lux Mhev

886 MOT tests analysed. sits above the UK fleet average — here's where CX 30 SE L Lux Mhevs pass, fail, and end up on the retest sheet.

That's 16.8 points above the UK fleet average across our 1,988 tracked models — a confident result.

Pass

92.5%

Pass-after-fix

1.7%

Fail

5.4%

Avg miles

21,586

Pass + Pass-after-fix + Fail = 100%

The picture

Cx-30 Se-L Lux Mhev: a strong MOT record by UK norms

Across 886 MOT tests, the Cx-30 Se-L Lux Mhev returns 92.5% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is tyre tread under the limit. Brake pads worn below 1.5 mm and windscreen damage round out the top three. Average tested mileage sits at 21,586, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.

Top ten reasons for rejection.

  1. 01

    Tyre tread depth not in accordance with the requirements

    21 occurrences · 2.4% of tests

  2. 02

    a brake lining or pad worn below 1.5mm

    10 occurrences · 1.1% of tests

  3. 03

    Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view

    10 occurrences · 1.1% of tests

  4. 04

    A shock absorber damaged to the extent that it does not function or showing signs of severe leakage

    9 occurrences · 1.0% of tests

  5. 05

    Wiper blade defective

    5 occurrences · 0.6% of tests

  6. 06

    A tyre seriously damaged

    5 occurrences · 0.6% of tests

  7. 07

    Wiper blade missing or obviously not clearing the windscreen

    4 occurrences · 0.5% of tests

  8. 08

    Engine MIL illuminated indicating a malfunction

    3 occurrences · 0.3% of tests

  9. 09

    Brake disc or drum significantly and obviously worn

    2 occurrences · 0.2% of tests

  10. 10

    Lambda coefficient outside the default limits or the range specified by the manufacturer

    2 occurrences · 0.2% of tests

Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.

Worst-case fix budget · top 3 failures

£160–£300

If every one of this CX 30 SE L Lux Mhev's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →

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Build your own retest budget.

Tools that pre-empt a retest.

Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.

Item 01 · Amazon UK

Digital tyre-tread depth gauge

Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.

Search Amazon UK

Item 02 · Amazon UK

Brake pad measurement gauge

Testers fail pads under 1.5mm. A wear gauge tells you if you've got two months left or two weeks.

Search Amazon UK

Item 03 · Amazon UK

Bosch Aerotwin wiper blades

Cheap wipers fail the test on smear streaks. Bosch Aerotwins last a winter and clear a screen properly.

Search Amazon UK

Buying or keeping a CX 30 SE L Lux Mhev?

Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.

If you own a CX 30 SE L Lux Mhev and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.