On average, 36.9% of cars will fail their MoT test in Swansea, which puts the region above the national average of 35.0%. The most common failure causes are Lamps, Reflectors and Electrical Equipment, Suspension and Brakes, while 3.8% will fail on exhaust, fuel and emissions.

Cars registered in 2001 have the worst overall MoT pass rate, at 45.9%. The manufacturers with the highest fail rate in this region are Renault, Talbot and Daewoo. At the opposite end of the scale with the best pass rates are Triumph, Porsche and MINI.

Most common reasons for MoT failure

Test Item Failure Rate National Failure Rate Relative Rate
Lamps, Reflectors and Electrical Equipment 18.0% 16.7% +8%
Suspension 13.7% 12.1% +14%
Brakes 10.6% 9.0% +18%
Tyres 8.4% 7.2% +18%
Driver's view of the road 6.5% 6.2% +5%
Exhaust, Fuel and Emissions 3.8% 3.6% +6%
Steering 2.9% 2.3% +27%
Seat Belts and Supplementary Restraint Systems 2.1% 1.6% +28%
Body, Structure and General Items 1.4% 1.1% +26%

MoT failure rates by year of registration

Year of Registration Tests Failure Rate National Failure Rate Relative Rate
2015 783 15.6% 13.2% +18%
2014 24,828 16.6% 14.3% +16%
2013 22,440 18.7% 16.9% +11%
2012 19,773 22.4% 20.9% +7%
2011 18,346 26.4% 24.6% +7%
2010 19,725 31.3% 29.2% +7%
2009 18,322 36.2% 32.8% +10%
2008 19,396 41.0% 37.0% +11%
2007 20,236 43.7% 39.6% +10%
2006 18,460 46.3% 42.2% +10%
2005 16,924 49.7% 45.0% +10%
2004 15,632 51.9% 47.4% +10%
2003 13,436 52.8% 48.6% +9%
2002 10,967 53.4% 49.6% +8%
2001 7,290 54.1% 49.6% +9%
2000 4,478 52.6% 49.2% +7%
1999 3,106 52.3% 48.8% +7%
1998 2,087 49.0% 46.8% +5%
1997 1,330 49.5% 45.5% +9%
1996 910 48.1% 44.2% +9%
1995 706 42.4% 42.3% +0%
1994 505 45.7% 41.0% +12%
1993 405 42.2% 40.5% +4%
1992 341 44.6% 39.1% +14%
1991 346 42.2% 38.9% +9%
1990 311 41.2% 37.1% +11%
1989 248 33.5% 35.2% −5%
1988 170 40.6% 35.0% +16%
1987 130 27.7% 34.4% −19%
1986 95 35.8% 34.0% +5%
1985 94 30.9% 33.9% −9%
1984 85 29.4% 32.7% −10%
1983 67 29.9% 32.7% −9%
1982 61 24.6% 32.6% −25%
1980 73 24.7% 29.2% −15%
1979 63 25.4% 28.7% −12%
1978 71 18.3% 29.0% −37%
1977 59 20.3% 28.8% −29%
1975 51 25.5% 27.5% −7%
1973 50 22.0% 25.8% −15%
1971 295 23.4% 24.9% −6%
1970 106 19.8% 23.8% −17%
1969 74 13.5% 24.8% −46%
1968 78 23.1% 23.4% −1%
1967 60 16.7% 23.4% −29%
1966 51 21.6% 22.4% −4%

MoT failure rates by make

Make Tests Failure Rate National Failure Rate Relative Rate
MINI 958 17.7% 29.3% −39%
Porsche 519 19.7% 19.3% +2%
Triumph 174 21.8% 29.9% −27%
Lexus 456 26.1% 23.4% +11%
BMW 9,114 27.5% 26.9% +2%
smart 127 27.6% 30.4% −9%
Dacia 1,157 28.4% 20.3% +40%
Audi 10,397 28.4% 25.5% +11%
Toyota 13,678 29.1% 30.1% −3%
Hyundai 6,500 29.2% 29.4% −1%
Skoda 5,320 30.6% 28.3% +8%
Kia 7,382 31.0% 30.7% +1%
Honda 6,996 33.5% 31.1% +8%
Mazda 5,467 33.8% 32.2% +5%
Suzuki 5,736 34.1% 32.4% +5%
SEAT 5,476 34.1% 32.6% +5%
Volvo 5,217 34.7% 35.1% −1%
Nissan 10,866 34.9% 33.3% +5%
Subaru 598 34.9% 32.8% +7%
Mitsubishi 4,738 35.9% 36.4% −1%
Isuzu 945 36.4% 43.9% −17%
SsangYong 297 37.0% 40.4% −8%
Land Rover 7,339 37.1% 31.0% +20%
Mercedes-Benz 6,226 37.1% 30.4% +22%
Volkswagen 28,280 37.2% 33.1% +12%
MG 895 37.3% 41.7% −10%
Jaguar 2,559 38.5% 31.3% +23%
Jeep 444 38.7% 36.0% +8%
Daihatsu 730 39.3% 36.1% +9%
Ford 50,982 39.4% 35.2% +12%
SAAB 1,143 39.6% 40.6% −2%
FIAT 10,149 39.6% 36.8% +8%
Alfa Romeo 643 39.7% 36.8% +8%
Citroen 15,445 41.4% 40.6% +2%
Peugeot 17,662 41.7% 40.4% +3%
Vauxhall 34,568 42.2% 39.0% +8%
Chrysler 325 42.8% 41.8% +2%
Chevrolet 1,566 43.7% 40.5% +8%
Proton 148 44.6% 45.0% −1%
Rover 1,213 48.4% 47.0% +3%
Renault 20,892 49.3% 47.4% +4%
Talbot 164 50.0% 46.8% +7%
Daewoo 258 64.0% 55.6% +15%
 

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