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Common problems by part

Ford B-Max body and structure problems

DVSA MOT tests 2022–2025 · 45,544 MOT tests · Updated

At 9 years, 0.9 in 100 MOT tests of the Ford B-Max failed on body and structure, against 2.3 for all class 4 vehicles the same age (all test years; 45,544 MOT tests) [1].

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  • Against all class 4 vehicles the same age: fails less often than all class 4 vehicles the same age (0.4× (0.37–0.44×)) (all test years), 421 MOT tests with a fail
  • By age: seen at 9 ages from 5 to 13 years, 218,327 MOT tests
  • Most common fail: Exhaust system: has a major leak of exhaust gases, 0.4 per 100 MOT tests

Figures are for the model as a whole, not for one car.

What the MOT tests show

What we know

0.9 fails per 100 MOT tests at 9 years, against 2.3 for all class 4 vehicles tested at 9 (all test years). The Ford B-Max fails less often here.

Why it matters

A body and structure fail stops the car passing until it is fixed; the most common one is rated major by DVSA.

What to check

Look under the sills, jacking points and rear subframe for rot, bubbling or fresh underseal over a repair, and check every door, bonnet and boot shuts properly.

Ford B-Max body and structure fails by age

Ford B-Max body and structure fails per 100 MOT tests by ageSolid line: the Ford B-Max. Dashed line: all cars the same age. The table below lists every value.0245 years: 0.4 per 100 (all cars 0.5), 6,570 MOT tests56 years: 0.4 per 100 (all cars 0.8), 13,855 MOT tests67 years: 0.5 per 100 (all cars 1.3), 23,808 MOT tests78 years: 0.7 per 100 (all cars 1.8), 36,242 MOT tests89 years: 0.9 per 100 (all cars 2.3), 45,544 MOT tests910 years: 1.3 per 100 (all cars 2.9), 41,085 MOT tests1011 years: 1.7 per 100 (all cars 3.5), 30,763 MOT tests1112 years: 1.7 per 100 (all cars 4.3), 17,576 MOT tests1213 years: 2.3 per 100 (all cars 5.0), 2,884 MOT tests13
Fails per 100 MOT tests by age, all first-use years pooled. Ford B-Max All class 4 vehicles the same age
AgeMOT testsFails per 100All class 4 vehicles the same age
56,5700.40.5
613,8550.40.8
723,8080.51.3
836,2420.71.8
945,5440.92.3
1041,0851.32.9
1130,7631.73.5
1217,5761.74.3
132,8842.35.0

All first-use years of the Ford B-Max pooled at each age, against all class 4 vehicles at that age over all 2022–2025 test years.

What fails in the body and structure at 9 years

Fails

Advisories (not fails)

Replace leaking exhaust section cost

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By engine and fuel

  • 1.6 petrol: 0.5 per 100 at 9 years, about average for petrol class 4 vehicles the same age (all test years; 16,770 MOT tests)
  • 1.0 petrol: 1.6 per 100 at 9 years, about average for petrol class 4 vehicles the same age (all test years; 14,380 MOT tests)

How to check on a test drive

Look under the sills, jacking points and rear subframe for rot, bubbling or fresh underseal over a repair, and check every door, bonnet and boot shuts properly.

The most common advisory here in MOT records: Exhaust system: has a minor leak of exhaust gases.

Check one Ford B-Max, not the average

The figures here describe Ford B-Max cars as a group. These free tools answer for one car. Each line says what the tool reads.

Other Ford B-Max problems

Body and structure on rival models

Questions people ask

Does the Ford B-Max have more body and structure problems than other cars?

0.37 to 0.44 times the body and structure fail rate of all class 4 vehicles the same age at 9 years (all test years), from 45,544 MOT tests. The interval is clear of 0.8 in the same direction at 6 of the 9 ages seen (ages up to 18 with at least 100 MOT tests with a fail).

How common are Ford B-Max body and structure problems?

0.9 in 100 MOT tests at 9 years failed on body and structure, against 2.3 for all class 4 vehicles the same age (all test years; 45,544 MOT tests).

What is the most common Ford B-Max body and structure fail?

0.4 in 100 MOT tests at 9 years: Exhaust system: has a major leak of exhaust gases (181 MOT tests with it).

Sources

  1. Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 218,327 MOT tests. Accessed 7 Oct 2026.

Parts: against all class 4 vehicles at the same age, all 2022–2025 test years pooled, not adjusted for mileage. Breakdowns and non-MOT faults are not in this data. How we compare