The picture
Rd350: a strong MOT record by UK norms
Across 773 MOT tests, the Rd350 returns 91.3% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is a stop-lamp out. Lamp emitted colour, position and brake efficiency below minimum requirement round out the top three. Average tested mileage sits at 21,465, 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
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
5 occurrences · 0.6% of tests
- 02
Lamp emitted colour, position or intensity not in accordance with the requirements
3 occurrences · 0.4% of tests
- 03
Brake efficiency below minimum requirement
2 occurrences · 0.3% of tests
- 04
Contaminated with oil, grease etc
2 occurrences · 0.3% of tests
- 05
Significant brake effort recorded with no brake applied indicating a binding brake
2 occurrences · 0.3% of tests
- 06
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
2 occurrences · 0.3% of tests
- 07
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
2 occurrences · 0.3% of tests
- 08
Headlamp not securely attached
2 occurrences · 0.3% of tests
- 09
A lamp missing or inoperative
2 occurrences · 0.3% of tests
- 10
A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
2 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.
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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 Rd350?
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 Rd350 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.