MOT cost .

Sinnis

ZS 125 86 Terrain

646 MOT tests analysed. lands in the middle of the pack — here's where ZS 125 86 Terrains pass, fail, and end up on the retest sheet.

That's 2.0 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

73.7%

Pass-after-fix

5.9%

Fail

19.2%

Avg miles

10,110

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

The picture

Zs 125-86 Terrain: middle-of-the-pack on first-time pass

Across 646 MOT tests, the Zs 125-86 Terrain returns 73.7% first-time pass — below the UK fleet average. The single most-logged Major fail is brake pads worn below 1.0 mm. A binding brake and tyre tread under the limit round out the top three. Average tested mileage sits at 10,110, 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

    Brake lining or pad worn below 1.0mm

    31 occurrences · 4.8% of tests

  2. 02

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

    20 occurrences · 3.1% of tests

  3. 03

    Tyre tread depth not in accordance with the requirements

    19 occurrences · 2.9% of tests

  4. 04

    A transmission belt, chain, sprocket or pulley excessively loose or worn

    16 occurrences · 2.5% of tests

  5. 05

    A transmission belt, chain, sprocket or pulley excessively loose or worn

    16 occurrences · 2.5% of tests

  6. 06

    A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps

    14 occurrences · 2.2% of tests

  7. 07

    A shock absorber not functioning or leaking severely

    13 occurrences · 2.0% of tests

  8. 08

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

    11 occurrences · 1.7% of tests

  9. 09

    Rear registration plate lamp does not illuminate simultaneously with the position lamps

    9 occurrences · 1.4% of tests

  10. 10

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

    8 occurrences · 1.2% 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 2 failures

£140–£255

If every one of this ZS 125 86 Terrain'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

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 02 · 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

Buying or keeping a ZS 125 86 Terrain?

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 ZS 125 86 Terrain 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.