On average, 28.8% of cars will fail their MoT test in Outer Hebrides, which puts the region below the national average of 29.7%. The most common failure causes are Suspension, Brakes and Lamps, reflectors and electrical equipment.
Cars registered in 2006 have the worst overall MoT pass rate, at 56.2%. The manufacturers with the highest fail rate in this region are Toyota, Vauxhall and Renault. At the opposite end of the scale with the best pass rates are Audi, Mercedes-Benz and BMW.
| Test Item | Failure Rate | National Failure Rate | Relative Rate |
|---|---|---|---|
| Suspension | 11.9% | 9.6% | +25% |
| Brakes | 11.0% | 7.7% | +43% |
| Lamps, reflectors and electrical equipment | 6.8% | 11.9% | −43% |
| Tyres | 4.7% | 5.8% | −18% |
| Body, chassis, structure | 4.2% | 4.1% | +1% |
| Visibility | 3.8% | 5.3% | −28% |
| Noise, emissions and leaks | 3.2% | 3.6% | −9% |
| Steering | 2.2% | 1.9% | +14% |
| Seat belts and supplementary restraint systems | 1.1% | 1.3% | −14% |
| Year of Registration | Tests | Failure Rate | National Failure Rate | Relative Rate |
| 2018 | 730 | 10.0% | 11.7% | −14% |
| 2017 | 880 | 9.3% | 13.2% | −30% |
| 2016 | 1,030 | 15.7% | 16.5% | −5% |
| 2015 | 1,076 | 20.3% | 19.5% | +4% |
| 2014 | 1,029 | 26.9% | 23.0% | +17% |
| 2013 | 883 | 30.0% | 27.2% | +10% |
| 2012 | 700 | 33.1% | 30.5% | +9% |
| 2011 | 701 | 39.2% | 33.4% | +18% |
| 2010 | 732 | 39.6% | 36.8% | +8% |
| 2009 | 616 | 38.6% | 39.1% | −1% |
| 2008 | 541 | 39.2% | 41.5% | −6% |
| 2007 | 533 | 41.7% | 42.6% | −2% |
| 2006 | 418 | 43.8% | 43.9% | −0% |
| 2005 | 327 | 43.7% | 44.9% | −3% |
| 2004 | 237 | 38.4% | 45.7% | −16% |
| 2003 | 161 | 39.1% | 45.6% | −14% |
| 2002 | 128 | 43.0% | 45.2% | −5% |
| 2001 | 65 | 43.1% | 43.9% | −2% |
| Make | Tests | Failure Rate | National Failure Rate | Relative Rate |
|---|---|---|---|---|
| BMW | 336 | 20.5% | 22.9% | −10% |
| Mercedes-Benz | 205 | 22.0% | 22.3% | −2% |
| Audi | 636 | 22.3% | 22.3% | +0% |
| Kia | 257 | 22.6% | 26.5% | −15% |
| Hyundai | 232 | 22.8% | 26.1% | −12% |
| Skoda | 303 | 23.1% | 23.5% | −2% |
| Dacia | 323 | 23.8% | 24.7% | −3% |
| Volkswagen | 1,156 | 25.4% | 29.0% | −12% |
| Honda | 324 | 25.9% | 28.2% | −8% |
| Nissan | 623 | 26.6% | 29.5% | −10% |
| Mazda | 205 | 27.3% | 28.2% | −3% |
| MINI | 138 | 28.3% | 25.5% | +11% |
| Land Rover | 366 | 29.0% | 25.2% | +15% |
| Suzuki | 168 | 29.2% | 27.5% | +6% |
| SEAT | 164 | 29.3% | 27.1% | +8% |
| Peugeot | 712 | 29.4% | 34.0% | −14% |
| Volvo | 296 | 29.4% | 28.9% | +2% |
| Ford | 2,374 | 29.6% | 31.5% | −6% |
| Mitsubishi | 344 | 29.9% | 28.7% | +4% |
| FIAT | 239 | 31.0% | 32.2% | −4% |
| Citroen | 795 | 32.5% | 34.2% | −5% |
| Toyota | 522 | 33.7% | 27.1% | +24% |
| Vauxhall | 1,855 | 35.8% | 34.2% | +5% |
| Renault | 1,446 | 36.6% | 38.6% | −5% |
