The picture
Z750: above-average pass rates, with caveats
Across 540 MOT tests, the Z750 returns 82.2% first-time pass — above the UK fleet average. The single most-logged Major fail is brake pads worn below 1.0 mm. Tyre tread under the limit and direction indicator lamp missing round out the top three. Average tested mileage sits at 23,450, 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
Brake lining or pad worn below 1.0mm
9 occurrences · 1.7% of tests
- 02
Tyre tread depth not in accordance with the requirements
9 occurrences · 1.7% of tests
- 03
A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
8 occurrences · 1.5% of tests
- 04
Number plate does not conform to the specified requirements
5 occurrences · 0.9% of tests
- 05
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
5 occurrences · 0.9% of tests
- 06
Rear registration plate lamp does not illuminate simultaneously with the position lamps
4 occurrences · 0.7% of tests
- 07
Reflector missing or reflecting white to the rear
4 occurrences · 0.7% of tests
- 08
A shock absorber not functioning or leaking severely
4 occurrences · 0.7% of tests
- 09
Audible warning not working
4 occurrences · 0.7% of tests
- 10
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
3 occurrences · 0.6% 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 4 failures
£163–£325
If every one of this Z750'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
Item 03 · Amazon UK
MOT-spec replacement number plate
Faded or non-standard plates fail outright. Replacements take ten minutes online with V5C details.
Search Amazon UK
Buying or keeping a Z750?
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 Z750 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.