On average, 30.5% of cars will fail their MoT test in Hemel Hempstead, which puts the region below the national average of 35.0%. The most common failure causes are Lamps, Reflectors and Electrical Equipment, Suspension and Brakes, while 2.7% will fail on exhaust, fuel and emissions.

Cars registered in 1999 have the worst overall MoT pass rate, at 52.9%. The manufacturers with the highest fail rate in this region are Daewoo, Rover and Renault. At the opposite end of the scale with the best pass rates are TVR, Aston Martin and Ferrari.

Most common reasons for MoT failure

Test Item Failure Rate National Failure Rate Relative Rate
Lamps, Reflectors and Electrical Equipment 15.7% 16.7% −6%
Suspension 8.6% 12.1% −28%
Brakes 6.1% 9.0% −33%
Tyres 6.0% 7.2% −16%
Driver's view of the road 5.5% 6.2% −11%
Exhaust, Fuel and Emissions 2.7% 3.6% −25%
Steering 1.6% 2.3% −31%
Seat Belts and Supplementary Restraint Systems 1.2% 1.6% −28%

MoT failure rates by year of registration

Year of Registration Tests Failure Rate National Failure Rate Relative Rate
2016 93 9.7% 11.6% −16%
2015 716 9.2% 13.2% −30%
2014 18,783 12.8% 14.3% −10%
2013 17,173 15.4% 16.9% −9%
2012 15,297 18.4% 20.9% −12%
2011 14,305 22.2% 24.6% −10%
2010 14,921 26.0% 29.2% −11%
2009 14,057 29.0% 32.8% −11%
2008 14,443 33.4% 37.0% −10%
2007 15,811 35.2% 39.6% −11%
2006 14,561 37.3% 42.2% −12%
2005 13,411 40.0% 45.0% −11%
2004 12,364 42.8% 47.4% −10%
2003 10,666 44.0% 48.6% −9%
2002 8,552 44.7% 49.6% −10%
2001 6,273 44.1% 49.6% −11%
2000 4,171 44.1% 49.2% −10%
1999 2,741 47.1% 48.8% −4%
1998 1,851 41.7% 46.8% −11%
1997 1,310 41.4% 45.5% −9%
1996 849 36.3% 44.2% −18%
1995 615 35.9% 42.3% −15%
1994 463 36.3% 41.0% −11%
1993 388 40.5% 40.5% −0%
1992 314 34.4% 39.1% −12%
1991 319 34.5% 38.9% −11%
1990 302 31.8% 37.1% −14%
1989 271 28.4% 35.2% −19%
1988 191 33.0% 35.0% −6%
1987 144 29.2% 34.4% −15%
1986 135 26.7% 34.0% −22%
1985 91 30.8% 33.9% −9%
1984 74 37.8% 32.7% +16%
1983 79 29.1% 32.7% −11%
1982 61 42.6% 32.6% +31%
1980 59 23.7% 29.2% −19%
1979 61 29.5% 28.7% +3%
1978 67 26.9% 29.0% −7%
1977 54 24.1% 28.8% −16%
1976 54 38.9% 29.3% +33%
1975 60 25.0% 27.5% −9%
1974 52 19.2% 25.0% −23%
1973 74 29.7% 25.8% +15%
1972 56 21.4% 24.3% −12%
1971 345 23.8% 24.9% −4%
1970 117 23.9% 23.8% +1%
1969 127 29.9% 24.8% +20%
1968 106 27.4% 23.4% +17%
1967 105 28.6% 23.4% +22%
1966 92 17.4% 22.4% −22%
1965 70 18.6% 21.6% −14%
1964 59 15.3% 20.7% −26%

MoT failure rates by make

Make Tests Failure Rate National Failure Rate Relative Rate
Ferrari 115 7.8% 11.4% −32%
Aston Martin 462 9.3% 14.2% −34%
TVR 116 10.3% 19.3% −46%
Bentley 125 16.0% 13.2% +21%
Lotus 115 16.5% 20.4% −19%
Porsche 1,735 18.2% 19.3% −6%
MINI 1,545 19.9% 29.3% −32%
Lexus 871 22.5% 23.4% −4%
Audi 11,074 22.6% 25.5% −11%
Triumph 293 23.2% 29.9% −22%
Jaguar 3,248 23.7% 31.3% −24%
Daihatsu 222 24.8% 36.1% −31%
BMW 12,256 25.6% 26.9% −5%
Land Rover 7,009 25.8% 31.0% −17%
Honda 10,470 25.9% 31.1% −17%
smart 185 26.5% 30.4% −13%
Skoda 3,854 26.8% 28.3% −5%
Dacia 193 26.9% 20.3% +33%
Toyota 11,491 27.5% 30.1% −9%
Subaru 896 28.0% 32.8% −14%
Hyundai 4,328 29.1% 29.4% −1%
Kia 3,021 29.1% 30.7% −5%
Mazda 3,873 29.4% 32.2% −9%
Suzuki 1,975 29.8% 32.4% −8%
Isuzu 214 29.9% 43.9% −32%
SEAT 3,095 30.0% 32.6% −8%
Mercedes-Benz 7,641 30.0% 30.4% −1%
Volkswagen 24,134 30.4% 33.1% −8%
Jeep 699 30.8% 36.0% −15%
Nissan 8,481 31.3% 33.3% −6%
Ford 34,142 33.9% 35.2% −4%
Mitsubishi 2,055 34.4% 36.4% −6%
MG 873 34.4% 41.7% −18%
FIAT 4,934 34.6% 36.8% −6%
Citroen 8,860 35.2% 40.6% −13%
Volvo 3,824 35.3% 35.1% +0%
Vauxhall 25,166 36.1% 39.0% −7%
SAAB 1,268 36.1% 40.6% −11%
Peugeot 10,661 36.3% 40.4% −10%
Alfa Romeo 913 36.9% 36.8% +0%
Chrysler 484 37.4% 41.8% −11%
Dodge 102 38.2% 42.4% −10%
Chevrolet 521 39.2% 40.5% −3%
Daewoo 103 39.8% 55.6% −28%
Rover 840 44.4% 47.0% −6%
Renault 7,684 44.9% 47.4% −5%
 

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