On average, 29.8% of cars will fail their MoT test in Swindon, which puts the region above the national average of 29.7%. The most common failure causes are Suspension, Lamps, reflectors and electrical equipment and Brakes.

Cars registered in 1994 have the worst overall MoT pass rate, at 49.6%. The manufacturers with the highest fail rate in this region are Rover, Chevrolet and Chrysler. At the opposite end of the scale with the best pass rates are Porsche, Ferrari and Aston Martin.

Most common reasons for MoT failure

Test Item Failure Rate National Failure Rate Relative Rate
Suspension 8.9% 9.6% −7%
Lamps, reflectors and electrical equipment 8.7% 11.9% −27%
Brakes 6.2% 7.7% −19%
Tyres 5.5% 5.8% −4%
Visibility 5.0% 5.3% −7%
Noise, emissions and leaks 3.3% 3.6% −7%
Body, chassis, structure 3.3% 4.1% −21%
Steering 1.7% 1.9% −10%
Seat belts and supplementary restraint systems 1.2% 1.3% −6%

MoT failure rates by year of registration

Year of Registration Tests Failure Rate National Failure Rate Relative Rate
2020 81 23.5% 16.7% +40%
2019 682 9.7% 10.3% −6%
2018 17,428 11.3% 11.7% −3%
2017 18,575 12.7% 13.2% −4%
2016 19,779 16.1% 16.5% −3%
2015 20,278 18.0% 19.5% −8%
2014 19,331 21.2% 23.0% −8%
2013 17,325 26.2% 27.2% −4%
2012 15,680 29.9% 30.5% −2%
2011 14,009 33.3% 33.4% −0%
2010 14,187 36.1% 36.8% −2%
2009 13,067 39.3% 39.1% +1%
2008 12,730 42.6% 41.5% +3%
2007 12,914 44.3% 42.6% +4%
2006 10,582 46.9% 43.9% +7%
2005 8,890 47.5% 44.9% +6%
2004 6,989 48.0% 45.7% +5%
2003 5,548 48.1% 45.6% +5%
2002 3,976 49.6% 45.2% +10%
2001 2,633 48.3% 43.9% +10%
2000 1,738 47.0% 42.5% +11%
1999 1,179 44.6% 40.8% +9%
1998 817 43.2% 38.5% +12%
1997 595 40.2% 37.5% +7%
1996 380 40.0% 36.5% +10%
1995 287 36.9% 35.3% +4%
1994 246 50.4% 34.4% +47%
1993 221 38.9% 34.7% +12%
1992 175 31.4% 32.9% −5%
1991 190 30.0% 32.3% −7%
1990 187 43.9% 30.9% +42%
1989 167 40.1% 29.6% +36%
1988 160 31.9% 30.2% +5%
1987 114 33.3% 29.5% +13%
1986 84 25.0% 28.9% −13%
1985 81 28.4% 28.3% +0%
1984 71 31.0% 28.1% +10%
1983 51 35.3% 27.5% +28%

MoT failure rates by make

Make Tests Failure Rate National Failure Rate Relative Rate
Aston Martin 123 11.4% 10.3% +11%
Ferrari 403 12.9% 6.9% +88%
Porsche 2,015 14.3% 14.9% −4%
Abarth 320 20.3% 20.8% −2%
Lexus 1,169 21.5% 18.7% +15%
smart 172 21.5% 31.9% −33%
Skoda 6,583 23.1% 23.5% −1%
Jaguar 3,331 23.3% 23.9% −3%
BMW 14,680 24.5% 22.9% +7%
Dacia 997 24.8% 24.7% +0%
Audi 13,210 25.0% 22.3% +12%
Hyundai 7,023 25.5% 26.1% −2%
Kia 6,532 25.9% 26.5% −2%
Mercedes-Benz 8,300 25.9% 22.3% +16%
MINI 7,493 26.0% 25.5% +2%
SEAT 4,377 27.4% 27.1% +1%
Land Rover 9,510 27.7% 25.2% +10%
Honda 9,746 28.1% 28.2% −0%
Volvo 5,473 28.5% 28.9% −1%
Toyota 8,985 29.0% 27.1% +7%
Subaru 1,022 29.3% 27.8% +5%
Suzuki 3,792 29.7% 27.5% +8%
Mazda 4,820 30.1% 28.2% +7%
SsangYong 261 30.3% 30.6% −1%
Jeep 828 30.4% 26.1% +17%
Mitsubishi 3,652 30.6% 28.7% +7%
FIAT 7,002 31.2% 32.2% −3%
MG 626 31.3% 28.9% +8%
Isuzu 389 31.6% 40.7% −22%
Volkswagen 26,365 31.6% 29.0% +9%
Nissan 13,483 31.8% 29.5% +8%
Ford 38,912 33.5% 31.5% +7%
Daihatsu 208 34.1% 36.3% −6%
Peugeot 14,900 34.3% 34.0% +1%
Vauxhall 25,942 35.6% 34.2% +4%
Alfa Romeo 742 35.7% 33.7% +6%
DS 883 35.9% 36.3% −1%
Citroen 8,043 36.8% 34.2% +8%
Renault 9,792 41.5% 38.6% +8%
SAAB 718 43.9% 39.5% +11%
Rover 306 45.1% 42.5% +6%
Chevrolet 789 46.0% 45.1% +2%
Chrysler 228 47.4% 41.2% +15%
 

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