The picture
Rr: above-average pass rates, with caveats
Across 579 MOT tests, the Rr returns 83.4% first-time pass — above the UK fleet average. The single most-logged Major fail is a missing rear reflector. Wheel bearing with excessive play and audible warning not working round out the top three. Average tested mileage sits at 1,987, 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
12 occurrences · 2.1% of tests
- 02
A wheel bearing with excessive play
12 occurrences · 2.1% of tests
- 03
Audible warning not working
11 occurrences · 1.9% of tests
- 04
Number plate does not conform to the specified requirements
10 occurrences · 1.7% of tests
- 05
A wheel bearing excessively rough
10 occurrences · 1.7% of tests
- 06
A shock absorber not functioning or leaking severely
7 occurrences · 1.2% of tests
- 07
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
6 occurrences · 1.0% of tests
- 08
Brake lining or pad worn below 1.0mm
5 occurrences · 0.9% of tests
- 09
A lamp missing or inoperative
5 occurrences · 0.9% of tests
- 10
An unsuitable tyre fitted
5 occurrences · 0.9% 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 RR?
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 RR 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.