MOT cost .

MG

Rv8

586 MOT tests analysed. sits above the UK fleet average — here's where Rv8s pass, fail, and end up on the retest sheet.

That's 12.0 points above the UK fleet average across our 1,988 tracked models — a confident result.

Pass

87.7%

Pass-after-fix

3.6%

Fail

8.4%

Avg miles

31,315

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

The picture

Rv8: a strong MOT record by UK norms

Across 586 MOT tests, the Rv8 returns 87.7% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is wipers that don't clear the screen. Brakes imbalance across an axle such and a number-plate lamp out round out the top three. Average tested mileage sits at 31,315, 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

    Wiper blade missing or obviously not clearing the windscreen

    12 occurrences · 2.0% of tests

  2. 02

    Brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle.

    8 occurrences · 1.4% of tests

  3. 03

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

    7 occurrences · 1.2% of tests

  4. 04

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

    5 occurrences · 0.9% of tests

  5. 05

    Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc

    4 occurrences · 0.7% of tests

  6. 06

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

    4 occurrences · 0.7% of tests

  7. 07

    Stop lamps all missing or inoperative

    4 occurrences · 0.7% of tests

  8. 08

    A tyre seriously damaged

    4 occurrences · 0.7% of tests

  9. 09

    Abnormal lag in brake operation on a wheel

    3 occurrences · 0.5% of tests

  10. 10

    Significant brake effort recorded with no brake applied indicating a binding brake

    3 occurrences · 0.5% 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

£108–£320

If every one of this Rv8'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

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

Item 02 · 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

Buying or keeping a Rv8?

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 Rv8 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.