Is the Ford B-Max reliable?

On MOT evidence the Ford B-Max is well below average. It passes 63.8% of tests once age and mileage are accounted for, against a national average of 72.3%. That figure covers 61% of the national age and mileage range, which is enough to quote but not to rank. This measures how often the car meets the MOT standard, not how often it breaks down or what a repair costs.

What do testers most often warn about on a Ford B-Max?

The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 25.4% of all Ford B-Max tests. An advisory is not a failure: it flags something that will likely need attention before the next test.

What mileage does a Ford B-Max usually have at its MOT?

The average odometer reading recorded at test is 59,393 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.

Does a Ford B-Max get harder to pass as it ages?

Yes. At 6 to 8 years old, 70.1% of Ford B-Max tests pass. By 12 to 14 years, that falls to 63.5%. Nearly every model follows this pattern, which is why comparing raw pass rates between models is misleading unless age is accounted for.

Are most Ford B-Max models petrol or diesel?

Of the Ford B-Max cars tested, 84% are petrol, 16% are diesel. Fuel type affects which items tend to fail, particularly emissions and exhaust components.

Model reliability file

Ford B-Max MOT pass rate & common failures

From 53,638 recorded MOT tests of the Ford B-Max, published by DVSA.

Data updated 29 July 2026

Quick answer

The Ford B-Max passes 63.8% of MOT tests once results are adjusted for the age and mileage of the cars tested, against a national average of 72.3%. That is well below average. Based on 53,638 tests. Its most commonly recorded failure is stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, which appears in 23.0% of failed tests. Cars of this model average 59,393 miles on the odometer when tested.

At a glance

Pass rate, adjusted for age and mileage

63.8%national average72.3%unadjusted67.9%range covered61%

The B-Max is 8.5 percentage points below the national pass rate once age and mileage are accounted for, which is well below average. The unadjusted figure is 67.9%; the difference is what the age and mileage of this model’s fleet was hiding.

DVSA recorded wording

Most common failure items

Share of failed Ford B-Max tests in which each item was recorded. One failed test often lists several items, so these do not sum to 100%.

1.Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning23.0%
2,986 occurrencesStop lamp not working explained
2.A spring or spring component fractured or seriously weakened18.6%
2,424 occurrencesRoad spring broken or fractured explained
3.A suspension pin, bush or joint excessively worn17.8%
2,313 occurrencesSuspension arm bush worn explained
4.Tyre tread depth not in accordance with the requirements9.7%
1,262 occurrencesTyre worn close to the legal limit explained
5.Wiper blade missing or obviously not clearing the windscreen9.1%
1,179 occurrencesWiper or washer not working properly explained
6.A brake lining or pad worn below 1.5mm8.5%
1,108 occurrencesBrake drum or shoe worn or contaminated explained
7.A tyre pressure monitoring system malfunctioning or obviously inoperative6.8%
888 occurrencesTyre pressure monitoring system inoperative explained
8.A tyre cords visible or damaged6.4%
837 occurrencesTyre ply or cord exposed, or the casing separating explained
9.A tyre seriously damaged6.2%
801 occurrencesTyre damaged or deteriorated explained
10.A steering ball joint with excessive wear or free play5.1%
661 occurrencesBall joint worn explained

Warnings without a failure

Most common advisories

Share of all Ford B-Max tests carrying each advisory. The denominator differs from the failure list above because an advisory can be issued on a car that passed.

1.Tyre tread depth not in accordance with the requirements25.4%
13,639 testsTyre worn close to the legal limit explained
2.A tyre seriously damaged16.3%
8,746 testsTyre damaged or deteriorated explained
3.A brake lining or pad worn below 1.5mm8.8%
4,731 testsBrake drum or shoe worn or contaminated explained
4.Brake disc or drum excessively weakened, insecure or fractured8.5%
4,560 testsBrake disc worn, pitted or scored explained
5.A spring or spring component fractured or seriously weakened6.5%
3,500 testsRoad spring broken or fractured explained
6.A stub axle swivel pin and/or bush excessively worn4.4%
2,355 testsBall joint worn explained
7.Brake disc or drum significantly and obviously worn3.9%
2,078 testsBrake disc worn, pitted or scored explained
8.Number plate inscription missing or illegible3.4%
1,800 testsRegistration plate missing, insecure or illegible explained

How wear changes the picture

Pass rate by vehicle age

6–8 yrs70%

9–11 yrs70%

12–14 yrs63%

Bands holding too few tests to be meaningful are omitted rather than shown as a rate.

What gets tested

The B-Max fleet

Average mileage recorded at test: 59,393
Fuel mix of tested cars: Petrol84.3%
Diesel15.7%

Trim names grouped into this model (4)

Recorded exactly as DVSA holds them. Trim-level names are rolled up so one model is not split across a dozen thin pages.

B-MAX TDCI
B-MAX TITANIUM
B-MAX TITANIUM TDCI
B-MAX TITANIUM X

Check a specific Ford B-Max

A model average tells you the pattern. Its own MOT record tells you the car.

Compare within the range

Other Ford models

Ford Fiesta — 67.1% adjusted
Ford Focus — 71.6% adjusted
Ford Kuga — 75.3% adjusted
Ford Transit — 68.0% adjusted
Ford Transit Custom — 77.3% unadjusted
Ford Mondeo — 76.0% adjusted
All Ford models

Similar test volumes

Compare against other makes

Mercedes-Benz SLK — 69.3% adjusted, ranked 178
Nissan Leaf — 72.0% adjusted, ranked 150
Peugeot Boxer — 71.4% adjusted, ranked 157
Toyota Avensis — 75.2% adjusted, ranked 107

Common questions

Is the Ford B-Max reliable?: On MOT evidence the Ford B-Max is well below average. It passes 63.8% of tests once age and mileage are accounted for, against a national average of 72.3%. That figure covers 61% of the national age and mileage range, which is enough to quote but not to rank. This measures how often the car meets the MOT standard, not how often it breaks down or what a repair costs.
What is the most common MOT failure on a Ford B-Max?: The item recorded most often is "Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning", which appears in 23.0% of failed Ford B-Max tests. Because one failed test can list several items, these shares do not add up to 100%.
What do testers most often warn about on a Ford B-Max?: The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 25.4% of all Ford B-Max tests. An advisory is not a failure: it flags something that will likely need attention before the next test.
What mileage does a Ford B-Max usually have at its MOT?: The average odometer reading recorded at test is 59,393 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.
Does a Ford B-Max get harder to pass as it ages?: Yes. At 6 to 8 years old, 70.1% of Ford B-Max tests pass. By 12 to 14 years, that falls to 63.5%. Nearly every model follows this pattern, which is why comparing raw pass rates between models is misleading unless age is accounted for.
Are most Ford B-Max models petrol or diesel?: Of the Ford B-Max cars tested, 84% are petrol, 16% are diesel. Fuel type affects which items tend to fail, particularly emissions and exhaust components.

How this was worked out

Method and limits

Figures come from the DVSA anonymised MOT testing dataset, published under the Open Government Licence. Only class 4 initial tests are counted: retests are excluded so a car appears once, and abandoned tests are excluded entirely. The adjusted rate is directly standardised across twenty-five age and mileage bands and reweighted onto the national distribution, so this model is compared against cars that have lived a similar life rather than against a younger or lighter-used fleet.

An MOT measures whether a car met a legal standard on the day. It is not a breakdown record, a service history or a running-cost estimate, and a pass rate is a property of a fleet rather than a prediction about one car.