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MOT performance

BMW X6 vs Jeep Grand Cherokee: MOT pass rates compared

In 2023–2024, 82.8% of 30,776 BMW X6 MOT tests and 75.5% of 20,755 Jeep Grand Cherokee tests passed first time — 7.3 points in favour of the BMW X6. Once age, mileage and fuel are allowed for, the BMW X6 fails less often than the Jeep Grand Cherokee: 0.64× against 0.78× the national rate for comparable cars.

30,776 BMW X6 and 20,755 Jeep Grand Cherokee MOT tests, 2023–2024

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At a glance

BMW X6 vs Jeep Grand Cherokee MOT results
FigureValueBasis
BMW X6: first-time pass rate82.8%±0.4 pts (95%), n = 30,776
Jeep Grand Cherokee: first-time pass rate75.5%±0.6 pts (95%), n = 20,755
BMW X6: failures vs similar cars-36%same age, mileage and fuel = 1.00
Jeep Grand Cherokee: failures vs similar cars-22%same age, mileage and fuel = 1.00
BMW X6: dangerous defect5.9%n = 30,776
Jeep Grand Cherokee: dangerous defect6.3%n = 20,755
Average age at test8 vs 11.2 yearsBMW X6 vs Jeep Grand Cherokee

Why the raw pass rates can mislead

The Jeep Grand Cherokee was tested at an older average age (11.2 years against 8), 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 Jeep Grand Cherokee fails 12.5 times as often on an adjusted basis.

BMW X6 vs Jeep Grand Cherokee MOT failures by area
AreaBMW X6Jeep Grand Cherokee
Brakes2.2% (-65%)8.7% (+5%)
Steering0.1% (-92%)2.4% (+1%)
Suspension4.0% (-50%)5.2% (-50%)
Tyres7.0% (+2%)3.6% (-47%)
Road wheels0.8% (+96%)0.5% (+7%)
Lights, reflectors and electrical3.9% (-58%)9.9% (-19%)
Body, chassis and structure0.8% (-72%)2.9% (-35%)
Driver's view of the road2.6% (-36%)3.9% (-19%)
Noise, emissions and leaks1.4% (-44%)2.8% (-21%)
Seat belts and airbags0.3% (-62%)1.2% (-14%)
Registration plates and VIN0.9% (+170%)0.4% (-9%)
Speedometer and driving controls0.0% (+150%)0.0% (+152%)

Pass rate at the same age

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

BMW X6 vs Jeep Grand Cherokee MOT pass rate by age at test
Age at testBMW X6Jeep Grand Cherokee
3-4 years87.1% (n = 4,086)88.3% (n = 762)
5-6 years87.4% (n = 6,443)85.6% (n = 2,607)
7-8 years86.8% (n = 5,926)82.3% (n = 4,977)
9-10 years80.0% (n = 5,142)78.1% (n = 4,603)
11-12 years76.4% (n = 3,640)73.0% (n = 1,509)
13-15 years75.3% (n = 4,015)63.5% (n = 641)

Most common failure item

  • BMW X6 · condition: has ply or cords exposed (2.60% of tests)
  • Jeep Grand Cherokee · position lamp: not working (1.80% 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.