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MOT performance

Ford Focus vs Audi A3: MOT pass rates compared

In 2023–2024, 68.0% of 1,956,630 Ford Focus MOT tests and 75.0% of 855,563 Audi A3 tests passed first time — 7.0 points in favour of the Audi A3. Once age, mileage and fuel are allowed for, the Audi A3 fails less often than the Ford Focus: 0.81× against 0.99× the national rate for comparable cars.

1,956,630 Ford Focus and 855,563 Audi A3 MOT tests, 2023–2024

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At a glance

Ford Focus vs Audi A3 MOT results
FigureValueBasis
Ford Focus: first-time pass rate68.0%±0.1 pts (95%), n = 1,956,630
Audi A3: first-time pass rate75.0%±0.1 pts (95%), n = 855,563
Ford Focus: failures vs similar cars-1%same age, mileage and fuel = 1.00
Audi A3: failures vs similar cars-19%same age, mileage and fuel = 1.00
Ford Focus: dangerous defect9.4%n = 1,956,630
Audi A3: dangerous defect8.2%n = 855,563
Average age at test10.5 vs 9.6 yearsFord Focus vs Audi A3

Why the raw pass rates can mislead

The Ford Focus was tested at an older average age (10.5 years against 9.6), and older cars fail more often whatever they are. That is why the table above also shows failures against cars of the same age, mileage and fuel: it compares the models, not their fleets.

Failure areas side by side

Share of MOT tests that failed on each area, and in brackets how that compares with cars of the same age, mileage and fuel (1.00 = national average). The clearest difference is steering, where the Ford Focus fails 3.2 times as often on an adjusted basis.

Ford Focus vs Audi A3 MOT failures by area
AreaFord FocusAudi A3
Brakes5.5% (-30%)5.6% (-26%)
Steering1.3% (-41%)0.4% (-81%)
Suspension10.7% (-1%)8.3% (-18%)
Tyres7.8% (+13%)7.6% (+8%)
Road wheels0.5% (+9%)0.3% (-28%)
Lights, reflectors and electrical15.3% (+14%)8.0% (-35%)
Body, chassis and structure3.3% (-20%)2.9% (-25%)
Driver's view of the road4.5% (-15%)3.0% (-38%)
Noise, emissions and leaks3.6% (-12%)3.1% (-10%)
Seat belts and airbags0.7% (-39%)1.0% (-10%)
Registration plates and VIN0.4% (+4%)0.4% (+2%)
Speedometer and driving controls0.0% (+28%)0.0% (-37%)

Pass rate at the same age

Comparing cars of the same age removes most of the fleet-age effect from the raw rates.

Ford Focus vs Audi A3 MOT pass rate by age at test
Age at testFord FocusAudi A3
3-4 years86.2% (n = 181,055)88.8% (n = 79,035)
5-6 years83.4% (n = 220,469)86.6% (n = 120,896)
7-8 years77.7% (n = 278,974)82.8% (n = 157,176)
9-10 years66.5% (n = 293,597)76.3% (n = 133,447)
11-12 years61.5% (n = 263,500)67.0% (n = 99,456)
13-15 years57.0% (n = 337,502)61.9% (n = 136,168)
16+ years54.4% (n = 334,678)56.9% (n = 98,315)

Most common failure item

  • Ford Focus · position lamp: not working (3.75% of tests)
  • Audi A3 · coil spring: fractured or broken (3.13% of tests)

MOT results reflect how cars are maintained as well as how they are built, so a gap between two models is a difference in test performance, not proof that one is more reliable. For one car, its own MOT history says more than any average.

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About this data. These are MOT test results, not a measure of mechanical reliability: a car's MOT outcome reflects its condition on the day, which depends on how it has been maintained and driven as well as how it was built. Figures cover class 4 vehicles (cars and light vans), normal tests only (retests excluded), outcomes pass, fail and pass after rectification at the station; vehicles at least 2.5 years old at test. Tests from 2023-01-01 to 2024-12-30. “Compared with similar cars” means compared with the national rate for cars of the same age, mileage band and fuel. Contains public sector information licensed under the Open Government Licence v3.0. Makes and models are matched to 73 Auto's vehicle catalogue; tests that can't be matched are left out rather than guessed. See how the MOT figures are produced.