The picture
Master Ll35 Business Dci: middle-of-the-pack on first-time pass
Across 593 MOT tests, the Master Ll35 Business Dci returns 75.2% first-time pass — roughly in line with the UK fleet average. The single most-logged Major fail is windscreen damage. A lamp out and a lamp out round out the top three. Average tested mileage sits at 76,739, 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
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
40 occurrences · 6.7% of tests
- 02
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
21 occurrences · 3.5% of tests
- 03
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
20 occurrences · 3.4% of tests
- 04
A lens defective which has no effect on emitted light
19 occurrences · 3.2% of tests
- 05
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
18 occurrences · 3.0% of tests
- 06
Engine MIL illuminated indicating a malfunction
15 occurrences · 2.5% of tests
- 07
a brake lining or pad worn below 1.5mm
14 occurrences · 2.4% of tests
- 08
A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps
14 occurrences · 2.4% of tests
- 09
Wiper blade missing or obviously not clearing the windscreen
13 occurrences · 2.2% of tests
- 10
Parking brake efficiency below minimum requirement
11 occurrences · 1.9% 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 Master Ll35 Business Dci?
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 Master Ll35 Business Dci 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.