MOT cost .

Ford

Fiesta ST Line Edition T Mhev

3,945 MOT tests analysed. sits above the UK fleet average — here's where Fiesta ST Line Edition T Mhevs pass, fail, and end up on the retest sheet.

That's 12.2 points above the UK fleet average across our 1,988 tracked models — a confident result.

Pass

87.9%

Pass-after-fix

5.2%

Fail

6.5%

Avg miles

21,008

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

The picture

Fiesta St-Line Edition T Mhev: a strong MOT record by UK norms

Across 3,945 MOT tests, the Fiesta St-Line Edition T Mhev returns 87.9% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is tyre tread under the limit. A seriously damaged tyre and headlamp aim out of spec round out the top three. Average tested mileage sits at 21,008, 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

    128 occurrences · 3.2% of tests

  2. 02

    A tyre seriously damaged

    39 occurrences · 1.0% of tests

  3. 03

    The aim of a headlamp is not within limits laid down in the requirements

    30 occurrences · 0.8% of tests

  4. 04

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

    29 occurrences · 0.7% of tests

  5. 05

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

    29 occurrences · 0.7% of tests

  6. 06

    Wiper blade defective

    16 occurrences · 0.4% of tests

  7. 07

    a brake lining or pad worn below 1.5mm

    15 occurrences · 0.4% of tests

  8. 08

    Windscreen washers not working or not providing sufficient fluid to clear the windscreen

    15 occurrences · 0.4% of tests

  9. 09

    A tyre cords visible or damaged

    12 occurrences · 0.3% of tests

  10. 10

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

    11 occurrences · 0.3% 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

£70–£175

If every one of this Fiesta ST Line Edition T 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 →

Try the calculator

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

Headlight restoration kit

Yellowed lenses fail the light-output test. A restoration kit lifts the haze in an afternoon for £20.

Search Amazon UK

Buying or keeping a Fiesta ST Line Edition T 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 Fiesta ST Line Edition T 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.