The picture
Zr 900 Bhf: a strong MOT record by UK norms
Across 537 MOT tests, the Zr 900 Bhf returns 91.6% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is a missing rear reflector. Tyre tread under the limit and uneven braking force round out the top three. Average tested mileage sits at 9,883, 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
Reflector missing or reflecting white to the rear
4 occurrences · 0.7% of tests
- 02
Tyre tread depth not in accordance with the requirements
4 occurrences · 0.7% of tests
- 03
Excessive fluctuation in brake effort through each wheel revolution
3 occurrences · 0.6% of tests
- 04
Number plate does not conform to the specified requirements
2 occurrences · 0.4% of tests
- 05
An exhaust silencer marked ‘NOT FOR ROAD USE’, ‘TRACK USE ONLY’ or similar words
2 occurrences · 0.4% of tests
- 06
A stop lamp(s) does not illuminate by the operation of both brake controls or remains on when the brakes are released
2 occurrences · 0.4% of tests
- 07
Audible warning not working
2 occurrences · 0.4% of tests
- 08
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
1 occurrences · 0.2% of tests
- 09
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
1 occurrences · 0.2% of tests
- 10
A stop lamp switch with a delay in operation
1 occurrences · 0.2% 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 3 failures
£195–£410
If every one of this ZR 900 Bhf'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
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
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 ZR 900 Bhf?
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 ZR 900 Bhf 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.