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.