The picture
Horizon: middle-of-the-pack on first-time pass
Across 10,354 MOT tests, the Horizon returns 75.0% first-time pass — roughly in line with the UK fleet average. The single most-logged Major fail is a missing CV-joint boot. A broken or weak spring and a number-plate lamp out round out the top three. Average tested mileage sits at 47,136, 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.
- 01
A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc
599 occurrences · 5.8% of tests
- 02
A spring or spring component fractured or seriously weakened
316 occurrences · 3.1% of tests
- 03
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
299 occurrences · 2.9% of tests
- 04
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
212 occurrences · 2.0% of tests
- 05
A transmission shaft constant velocity joint boot severely deteriorated
207 occurrences · 2.0% of tests
- 06
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
199 occurrences · 1.9% of tests
- 07
a brake lining or pad worn below 1.5mm
152 occurrences · 1.5% of tests
- 08
Tyre tread depth not in accordance with the requirements
145 occurrences · 1.4% of tests
- 09
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
125 occurrences · 1.2% of tests
- 10
Wiper blade missing or obviously not clearing the windscreen
117 occurrences · 1.1% 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
£88–£275
If every one of this Horizon'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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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.
Buying or keeping a Horizon?
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 Horizon 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.