On average, 33.3% of cars will fail their MoT test in Harrow, which puts the region below the national average of 35.0%. The most common failure causes are Lamps, Reflectors and Electrical Equipment, Suspension and Tyres, while 2.3% will fail on exhaust, fuel and emissions.

Cars registered in 1999 have the worst overall MoT pass rate, at 55.4%. The manufacturers with the highest fail rate in this region are Rover, Chevrolet and Renault. At the opposite end of the scale with the best pass rates are MINI, Lexus and Porsche.

Most common reasons for MoT failure

Test Item Failure Rate National Failure Rate Relative Rate
Lamps, Reflectors and Electrical Equipment 20.4% 16.7% +22%
Suspension 7.1% 12.1% −41%
Tyres 6.6% 7.2% −8%
Driver's view of the road 6.4% 6.2% +3%
Brakes 5.4% 9.0% −40%
Exhaust, Fuel and Emissions 2.3% 3.6% −36%
Seat Belts and Supplementary Restraint Systems 1.3% 1.6% −22%
Steering 1.2% 2.3% −48%

MoT failure rates by year of registration

Year of Registration Tests Failure Rate National Failure Rate Relative Rate
2016 408 16.4% 11.6% +42%
2015 1,083 22.3% 13.2% +69%
2014 8,236 17.1% 14.3% +20%
2013 9,830 20.3% 16.9% +20%
2012 10,267 23.5% 20.9% +12%
2011 9,596 27.2% 24.6% +10%
2010 10,131 29.2% 29.2% +0%
2009 9,750 30.7% 32.8% −6%
2008 10,298 34.1% 37.0% −8%
2007 11,292 35.9% 39.6% −9%
2006 10,360 38.2% 42.2% −9%
2005 10,234 39.4% 45.0% −13%
2004 9,366 41.3% 47.4% −13%
2003 8,012 43.0% 48.6% −12%
2002 6,641 43.4% 49.6% −13%
2001 4,970 42.9% 49.6% −14%
2000 3,357 43.3% 49.2% −12%
1999 2,173 44.6% 48.8% −9%
1998 1,475 41.9% 46.8% −11%
1997 961 40.3% 45.5% −11%
1996 646 44.1% 44.2% −0%
1995 428 37.6% 42.3% −11%
1994 317 40.4% 41.0% −1%
1993 220 35.9% 40.5% −11%
1992 158 24.7% 39.1% −37%
1991 172 28.5% 38.9% −27%
1990 155 28.4% 37.1% −24%
1989 118 28.8% 35.2% −18%
1988 76 28.9% 35.0% −17%
1986 57 31.6% 34.0% −7%
1971 79 17.7% 24.9% −29%

MoT failure rates by make

Make Tests Failure Rate National Failure Rate Relative Rate
Porsche 587 18.7% 19.3% −3%
Lexus 1,474 23.4% 23.4% −0%
MINI 494 24.1% 29.3% −18%
Skoda 2,319 24.4% 28.3% −14%
Kia 2,257 25.6% 30.7% −17%
Land Rover 2,051 25.8% 31.0% −17%
Jeep 185 25.9% 36.0% −28%
Jaguar 1,548 26.8% 31.3% −14%
smart 204 27.0% 30.4% −11%
Audi 6,980 27.0% 25.5% +6%
BMW 10,128 27.2% 26.9% +1%
MG 158 30.4% 41.7% −27%
Mercedes-Benz 9,119 31.8% 30.4% +4%
Honda 10,382 31.8% 31.1% +2%
SEAT 1,173 32.4% 32.6% −1%
Suzuki 1,084 32.6% 32.4% +0%
Toyota 14,396 33.3% 30.1% +11%
Volkswagen 18,325 33.7% 33.1% +2%
Hyundai 2,141 34.1% 29.4% +16%
SAAB 645 34.3% 40.6% −16%
FIAT 1,956 34.3% 36.8% −7%
Mazda 1,590 34.7% 32.2% +7%
Volvo 1,581 35.3% 35.1% +1%
Subaru 113 35.4% 32.8% +8%
Nissan 8,682 35.6% 33.3% +7%
Daihatsu 120 35.8% 36.1% −1%
Ford 20,827 36.4% 35.2% +4%
Mitsubishi 809 37.0% 36.4% +2%
Peugeot 6,445 37.9% 40.4% −6%
Vauxhall 16,577 38.9% 39.0% −0%
Chrysler 363 39.1% 41.8% −6%
Alfa Romeo 363 39.4% 36.8% +7%
LTI 299 40.5% 37.1% +9%
Citroen 2,889 40.8% 40.6% +0%
Rover 351 41.9% 47.0% −11%
Chevrolet 511 42.7% 40.5% +5%
Renault 4,166 43.9% 47.4% −7%
 

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