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MOT reliability

Bentley S1

147 vehicles · 1,043 completed MOT tests analysed
89%
MOT pass rate

Based on 147 Bentley S1 vehicles and 1,043 completed MOT tests, the Bentley S1 has an overall 89% pass rate, with an average recorded mileage of 64,419 miles.

147
Vehicles
1,043
MOT tests
1,393
Avg miles / year
0.8
Faults per test
1%
Dangerous-fault share

Bentley S1 problem areas

Where faults occur most across all Bentley S1 MOT tests:

  • Other110%
  • Seatbelts & equipment6%
  • Emissions & nuisance5%
  • Steering4%
  • Tyres, wheels & suspension3%
  • Brakes2%
  • Body & structure1%
  • Lamps & electrical0%

Bentley S1 pass rate by age

Age (years)TestsPass rate
13100%
2250%
32100%
4367%
53100%
64100%
74100%
82100%
92100%
101100%
113100%
123100%
132100%
145100%
154100%
161090%
1710100%
181385%
191681%
2010100%

Fuel types: Petrol (146), Other (1)

Most common Bentley S1 MOT faults

These are the faults and advisories recorded most often across Bentley S1 MOT tests:

  1. Oil leak (30 times)
  2. Windscreen washer provides insufficient washer liquid (8.2.3) (20 times)
  3. Offside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a) (18 times)
  4. Nearside Front wheel bearing has slight play (2.5.A.3c) (17 times)
  5. Steering system has slight free play detected at steering wheel (2.2.A.1a) (15 times)
  6. Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.C.1b) (14 times)
  7. Parking brake: efficiency below requirements (3.7.C.1b) (14 times)
  8. Centre Exhaust has a minor leak of exhaust gases (7.1.2) (14 times)
  9. Offside Front wheel bearing has slight play (2.5.A.3c) (13 times)
  10. Nearside Axle king pin has slight play in pin and/or bush (2.5.A.3a) (12 times)
  11. Nearside Front Body has slight corrosion (6.1.B.2) (11 times)
  12. Offside Steering pivot point has slight play (2.2.B.1g) (10 times)
  13. Nearside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a) (10 times)
  14. Offside Front Body has slight corrosion (6.1.B.2) (9 times)
  15. Brake pipe slightly corroded (3.6.B.2c) (8 times)

Bentley S1 pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
2018 1 1 100% 75,988
2016 1 2 100% 13,595
2015 1 2 100% 71,692
2013 2 2 100% 75,842
2012 2 2 100% 65,391
2009 1 1 100% 4,406
2008 3 16 81% 61,116
2006 1 1 100% 24,404
2003 1 19 100% 38,860
2002 1 10 100% 51,719
1995 1 13 92% 63,645
1992 2 23 96% 64,879
1991 1 6 83% —
1990 5 43 86% 55,752
1989 2 15 87% 79,256
1988 1 8 100% 36,426
1986 1 1 100% 58,191
1985 3 34 91% 75,293
1981 2 12 92% 56,318
1978 2 9 78% 64,039
1971 1 8 88% 61,654
1961 1 15 100% 61,614
1960 2 17 88% 65,058
1959 20 147 91% 61,932
1958 20 162 87% 47,656
1957 29 220 90% 50,749
1956 31 199 84% 87,497
1955 7 49 94% 94,780
1952 1 2 100% 92,087

Bentley S1 reliability FAQ

Across 147 Bentley S1 vehicles in our MOT data, 89% pass the MOT (a 11% failure rate), with about 0.8 faults or advisories recorded per test.

The most frequently recorded Bentley S1 MOT issues are: Oil leak; Windscreen washer provides insufficient washer liquid (8.2.3); Offside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a).

The typical Bentley S1 in our data has covered around 64,419 miles.

Compare the Bentley S1

See how the Bentley S1 stacks up against other Bentley models on MOT reliability:

S1 vs Continental S1 vs Unknown S1 vs Bentayga S1 vs Continental gt

Check a specific Bentley S1

Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.

See all Bentley models · Learn about common MOT failures · what an MOT checks