MOT cost .

Proton

Gen 2

911 MOT tests analysed. runs below the UK fleet average — here's where Gen 2s pass, fail, and end up on the retest sheet.

That's 12.7 points below the UK fleet average across our 1,988 tracked models — buyers should expect more first-time fails than the typical UK car.

Pass

63.0%

Pass-after-fix

5.0%

Fail

31.1%

Avg miles

69,701

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

The picture

Gen-2: a below-average pass rate worth digging into

Across 911 MOT tests, the Gen-2 returns 63.0% first-time pass — well below the UK fleet average. The single most-logged Major fail is a weak handbrake. A number-plate lamp out and the strength or continuity of the load bearing round out the top three. Average tested mileage sits at 69,701, 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

    Parking brake efficiency below minimum requirement

    64 occurrences · 7.0% of tests

  2. 02

    A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources

    54 occurrences · 5.9% of tests

  3. 03

    The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired

    44 occurrences · 4.8% of tests

  4. 04

    Wiper blade missing or obviously not clearing the windscreen

    41 occurrences · 4.5% of tests

  5. 05

    A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning

    38 occurrences · 4.2% of tests

  6. 06

    Parking brake inoperative on one side

    37 occurrences · 4.1% of tests

  7. 07

    A suspension joint dust cover severely deteriorated

    37 occurrences · 4.1% of tests

  8. 08

    Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning

    35 occurrences · 3.8% of tests

  9. 09

    A suspension joint dust cover missing or no longer prevents the ingress of dirt etc

    35 occurrences · 3.8% of tests

  10. 10

    A battery insecure but not likely to fall from carrier

    34 occurrences · 3.7% 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 2 failures

£28–£80

If every one of this Gen 2'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

H7 / W21W bulb pack

A spare-bulb kit lives in the boot. Test morning is not the time to find your stop-lamp's gone.

Search Amazon UK

Item 02 · 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 Gen 2?

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 Gen 2 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.