MOT cost .

Peugeot

306

6,421 MOT tests analysed. runs below the UK fleet average — here's where 306s pass, fail, and end up on the retest sheet.

That's 9.0 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

66.7%

Pass-after-fix

5.2%

Fail

27.3%

Avg miles

108,786

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

The picture

306: a below-average pass rate worth digging into

Across 6,421 MOT tests, the 306 returns 66.7% first-time pass — well below the UK fleet average. The single most-logged Major fail is a weak handbrake. A split CV-joint boot and windscreen damage round out the top three. Average tested mileage sits at 108,786, 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

    302 occurrences · 4.7% of tests

  2. 02

    A transmission shaft constant velocity joint boot severely deteriorated

    269 occurrences · 4.2% of tests

  3. 03

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

    260 occurrences · 4.0% of tests

  4. 04

    Wiper blade missing or obviously not clearing the windscreen

    187 occurrences · 2.9% of tests

  5. 05

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

    178 occurrences · 2.8% of tests

  6. 06

    Exhaust system leaking or insecure

    174 occurrences · 2.7% of tests

  7. 07

    A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc

    168 occurrences · 2.6% of tests

  8. 08

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

    157 occurrences · 2.4% of tests

  9. 09

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

    151 occurrences · 2.4% of tests

  10. 10

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

    147 occurrences · 2.3% 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 306'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 306?

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 306 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.