On average, 27.0% of cars will fail their MoT test in Watford, which puts the region below the national average of 29.7%. The most common failure causes are Lamps, reflectors and electrical equipment, Suspension and Tyres.
Cars registered in 2004 have the worst overall MoT pass rate, at 54.3%. The manufacturers with the highest fail rate in this region are SAAB, Chevrolet and Chrysler. At the opposite end of the scale with the best pass rates are Porsche, Dacia and Ferrari.
| Test Item | Failure Rate | National Failure Rate | Relative Rate |
|---|---|---|---|
| Lamps, reflectors and electrical equipment | 8.7% | 11.9% | −27% |
| Suspension | 6.7% | 9.6% | −30% |
| Tyres | 5.1% | 5.8% | −12% |
| Visibility | 5.1% | 5.3% | −5% |
| Brakes | 4.8% | 7.7% | −37% |
| Noise, emissions and leaks | 2.7% | 3.6% | −24% |
| Body, chassis, structure | 2.5% | 4.1% | −40% |
| Steering | 1.0% | 1.9% | −46% |
| Year of Registration | Tests | Failure Rate | National Failure Rate | Relative Rate |
| 2020 | 55 | 16.4% | 16.7% | −2% |
| 2019 | 488 | 13.3% | 10.3% | +30% |
| 2018 | 13,358 | 12.2% | 11.7% | +5% |
| 2017 | 11,800 | 13.3% | 13.2% | +0% |
| 2016 | 11,373 | 16.4% | 16.5% | −0% |
| 2015 | 10,360 | 18.8% | 19.5% | −3% |
| 2014 | 9,263 | 22.2% | 23.0% | −4% |
| 2013 | 8,288 | 26.6% | 27.2% | −2% |
| 2012 | 7,142 | 29.1% | 30.5% | −5% |
| 2011 | 6,520 | 33.7% | 33.4% | +1% |
| 2010 | 6,546 | 35.3% | 36.8% | −4% |
| 2009 | 6,049 | 38.1% | 39.1% | −2% |
| 2008 | 5,633 | 40.0% | 41.5% | −4% |
| 2007 | 5,457 | 41.6% | 42.6% | −2% |
| 2006 | 4,356 | 41.5% | 43.9% | −6% |
| 2005 | 3,736 | 42.7% | 44.9% | −5% |
| 2004 | 3,024 | 45.7% | 45.7% | +0% |
| 2003 | 2,248 | 43.7% | 45.6% | −4% |
| 2002 | 1,645 | 40.3% | 45.2% | −11% |
| 2001 | 1,108 | 42.3% | 43.9% | −4% |
| 2000 | 705 | 43.8% | 42.5% | +3% |
| 1999 | 501 | 42.5% | 40.8% | +4% |
| 1998 | 357 | 38.7% | 38.5% | +0% |
| 1997 | 236 | 38.1% | 37.5% | +2% |
| 1996 | 127 | 39.4% | 36.5% | +8% |
| 1995 | 111 | 34.2% | 35.3% | −3% |
| 1994 | 88 | 30.7% | 34.4% | −11% |
| 1993 | 75 | 44.0% | 34.7% | +27% |
| 1992 | 67 | 26.9% | 32.9% | −18% |
| 1991 | 60 | 38.3% | 32.3% | +19% |
| 1990 | 90 | 30.0% | 30.9% | −3% |
| 1989 | 55 | 21.8% | 29.6% | −26% |
| Make | Tests | Failure Rate | National Failure Rate | Relative Rate |
|---|---|---|---|---|
| Ferrari | 130 | 2.3% | 6.9% | −66% |
| Dacia | 400 | 14.8% | 24.7% | −40% |
| Porsche | 997 | 15.1% | 14.9% | +2% |
| Tesla | 128 | 17.2% | 13.3% | +29% |
| Skoda | 3,140 | 17.4% | 23.5% | −26% |
| Mazda | 3,574 | 19.6% | 28.2% | −31% |
| Kia | 3,705 | 20.5% | 26.5% | −23% |
| Audi | 7,661 | 22.2% | 22.3% | −0% |
| Jeep | 295 | 22.4% | 26.1% | −14% |
| Jaguar | 1,606 | 22.4% | 23.9% | −6% |
| Land Rover | 3,569 | 22.9% | 25.2% | −9% |
| Abarth | 112 | 23.2% | 20.8% | +12% |
| Volvo | 2,288 | 23.6% | 28.9% | −18% |
| BMW | 9,171 | 23.9% | 22.9% | +4% |
| MINI | 3,847 | 24.5% | 25.5% | −4% |
| Hyundai | 4,000 | 24.5% | 26.1% | −6% |
| Lexus | 785 | 24.6% | 18.7% | +31% |
| SEAT | 1,432 | 26.1% | 27.1% | −4% |
| Suzuki | 1,817 | 26.6% | 27.5% | −3% |
| Subaru | 157 | 26.8% | 27.8% | −4% |
| Toyota | 8,215 | 26.9% | 27.1% | −1% |
| Volkswagen | 12,139 | 27.3% | 29.0% | −6% |
| Honda | 6,615 | 27.8% | 28.2% | −1% |
| smart | 183 | 27.9% | 31.9% | −13% |
| MG | 154 | 27.9% | 28.9% | −3% |
| Mercedes-Benz | 4,912 | 28.0% | 22.3% | +25% |
| Mitsubishi | 750 | 29.7% | 28.7% | +4% |
| Nissan | 7,210 | 30.1% | 29.5% | +2% |
| FIAT | 2,610 | 31.8% | 32.2% | −1% |
| Renault | 4,057 | 32.2% | 38.6% | −16% |
| Peugeot | 4,493 | 32.7% | 34.0% | −4% |
| Ford | 16,034 | 32.9% | 31.5% | +5% |
| DS | 280 | 33.6% | 36.3% | −8% |
| Citroen | 2,980 | 34.5% | 34.2% | +1% |
| Alfa Romeo | 274 | 34.7% | 33.7% | +3% |
| Vauxhall | 11,858 | 35.4% | 34.2% | +3% |
| SAAB | 292 | 42.8% | 39.5% | +8% |
| Chevrolet | 219 | 45.2% | 45.1% | +0% |
| Chrysler | 118 | 48.3% | 41.2% | +17% |
