MoT Data for Harrow
Harrow has an average pass rate of 62%. Failure rates for lighting and signalling are higher than they are elsewhere, but suspension and brake related problems are less common – possibly because Harrow is built up and well served by public transport, so cars aren't generally used as much.
Interestingly more modern cars have below average pass rates, whereas older models have above average pass rates. The best performing models are are Porsche, Subaru and Lexus. Rover, Daewoo and Renault are at the bottom of the table for manufacturers.
Most common reasons for MoT failure
| Test Item | Failure Rate | National Failure Rate | Relative Rate |
| Lamps, reflectors and electrical equipment | 10.9% | 11.9% | −9% |
| Visibility | 5.2% | 5.3% | −2% |
| Suspension | 4.6% | 9.6% | −52% |
| Tyres | 4.5% | 5.8% | −23% |
| Brakes | 4.2% | 7.7% | −46% |
| Noise, emissions and leaks | 2.6% | 3.6% | −27% |
| Body, chassis, structure | 2.4% | 4.1% | −43% |
MoT failure rates by year of registration
| Year of Registration | Tests | Failure Rate | National Failure Rate | Relative Rate |
| 2021 | 97 | 14.4% | 17.5% | −18% |
| 2020 | 242 | 8.7% | 16.7% | −48% |
| 2019 | 1,658 | 11.0% | 10.3% | +7% |
| 2018 | 9,600 | 11.2% | 11.7% | −4% |
| 2017 | 11,480 | 11.7% | 13.2% | −11% |
| 2016 | 13,130 | 15.2% | 16.5% | −8% |
| 2015 | 12,526 | 18.0% | 19.5% | −7% |
| 2014 | 11,386 | 19.8% | 23.0% | −14% |
| 2013 | 11,291 | 22.0% | 27.2% | −19% |
| 2012 | 10,751 | 24.5% | 30.5% | −20% |
| 2011 | 10,103 | 28.8% | 33.4% | −14% |
| 2010 | 10,206 | 30.3% | 36.8% | −18% |
| 2009 | 9,923 | 32.4% | 39.1% | −17% |
| 2008 | 9,680 | 34.6% | 41.5% | −17% |
| 2007 | 10,091 | 35.7% | 42.6% | −16% |
| 2006 | 8,161 | 37.0% | 43.9% | −16% |
| 2005 | 6,721 | 38.9% | 44.9% | −13% |
| 2004 | 5,441 | 38.9% | 45.7% | −15% |
| 2003 | 4,111 | 40.0% | 45.6% | −12% |
| 2002 | 3,071 | 38.9% | 45.2% | −14% |
| 2001 | 2,130 | 38.6% | 43.9% | −12% |
| 2000 | 1,293 | 37.2% | 42.5% | −12% |
| 1999 | 792 | 39.0% | 40.8% | −4% |
| 1998 | 555 | 36.0% | 38.5% | −6% |
| 1997 | 361 | 36.0% | 37.5% | −4% |
| 1996 | 225 | 34.7% | 36.5% | −5% |
| 1995 | 151 | 31.8% | 35.3% | −10% |
| 1994 | 105 | 34.3% | 34.4% | −0% |
| 1993 | 83 | 27.7% | 34.7% | −20% |
| 1992 | 69 | 11.6% | 32.9% | −65% |
| 1991 | 115 | 27.8% | 32.3% | −14% |
| 1990 | 113 | 15.9% | 30.9% | −48% |
| 1989 | 95 | 26.3% | 29.6% | −11% |
| 1988 | 54 | 35.2% | 30.2% | +16% |
| 1987 | 53 | 26.4% | 29.5% | −11% |
MoT failure rates by make
| Make | Tests | Failure Rate | National Failure Rate | Relative Rate |
| Bentley | 132 | 8.3% | 10.3% | −19% |
| Tesla | 173 | 8.7% | 13.3% | −35% |
| Porsche | 815 | 15.2% | 14.9% | +2% |
| Skoda | 3,054 | 16.2% | 23.5% | −31% |
| Lexus | 2,385 | 18.7% | 18.7% | +0% |
| Land Rover | 2,909 | 18.8% | 25.2% | −25% |
| LTI | 240 | 19.6% | 38.2% | −49% |
| Kia | 3,804 | 21.0% | 26.5% | −21% |
| Audi | 9,314 | 21.1% | 22.3% | −5% |
| BMW | 14,394 | 22.0% | 22.9% | −4% |
| Toyota | 20,679 | 22.9% | 27.1% | −16% |
| Jaguar | 1,831 | 23.0% | 23.9% | −4% |
| Mitsubishi | 1,380 | 23.5% | 28.7% | −18% |
| MINI | 3,635 | 24.7% | 25.5% | −3% |
| Mercedes-Benz | 9,233 | 24.8% | 22.3% | +11% |
| SEAT | 1,612 | 24.8% | 27.1% | −9% |
| Jeep | 303 | 25.4% | 26.1% | −2% |
| Dacia | 176 | 25.6% | 24.7% | +4% |
| smart | 209 | 26.3% | 31.9% | −18% |
| Subaru | 120 | 26.7% | 27.8% | −4% |
| Volkswagen | 19,732 | 27.0% | 29.0% | −7% |
| DS | 244 | 27.0% | 36.3% | −26% |
| Suzuki | 1,491 | 27.4% | 27.5% | −0% |
| Honda | 11,212 | 27.9% | 28.2% | −1% |
| Mazda | 1,758 | 28.0% | 28.2% | −1% |
| Hyundai | 3,441 | 28.5% | 26.1% | +9% |
| Volvo | 1,624 | 28.6% | 28.9% | −1% |
| Nissan | 11,088 | 29.3% | 29.5% | −1% |
| Ford | 20,336 | 29.5% | 31.5% | −6% |
| Chrysler | 216 | 29.6% | 41.2% | −28% |
| FIAT | 2,533 | 30.4% | 32.2% | −5% |
| Peugeot | 5,790 | 30.5% | 34.0% | −10% |
| SAAB | 366 | 30.9% | 39.5% | −22% |
| Citroen | 3,105 | 31.2% | 34.2% | −9% |
| MG | 130 | 32.3% | 28.9% | +12% |
| Alfa Romeo | 369 | 33.6% | 33.7% | −0% |
| Vauxhall | 15,455 | 33.7% | 34.2% | −1% |
| Rover | 139 | 33.8% | 42.5% | −20% |
| Renault | 3,884 | 35.1% | 38.6% | −9% |
| Chevrolet | 460 | 40.0% | 45.1% | −11% |
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