How reliable is the BMW IX compared with other cars?

We do not publish a comparison for the BMW IX, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages. Its raw pass rate is 85.9% across 5,727 tests, but comparing a raw rate between models mostly ranks them by how new they are rather than how good they are. The failure and advisory patterns further down the page are still drawn from real tests and are worth reading.

What is the most common MOT failure on a BMW IX?

The item recorded most often is "A tyre seriously damaged", which appears in 45.1% of failed BMW IX 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 BMW IX?

The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 30.6% of all BMW IX tests. An advisory is not a failure: it flags something that will likely need attention before the next test.

What mileage does a BMW IX usually have at its MOT?

The average odometer reading recorded at test is 31,423 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.

Model reliability file

BMW IX MOT pass rate & common failures

From 5,727 recorded MOT tests of the BMW IX, published by DVSA.

Data updated 29 July 2026

Quick answer

Across 5,727 MOT tests, 85.9% of BMW IX tests ended in a pass. This figure is not adjusted for age or mileage, so it is not a reliability ranking: the BMW IX fleet does not yet cover a wide enough spread of ages and distances to compare it fairly against other models. Its most commonly recorded failure is tyre seriously damaged, which appears in 45.1% of failed tests. Cars of this model average 31,423 miles on the odometer when tested.

At a glance

Recorded pass rate

85.9%unadjusted, not comparable5,727 tests

We are not publishing a ranking for the IX. The examples tested do not cover a wide enough spread of ages and mileages to compare it fairly, and an unadjusted pass rate mostly sorts models by how recently they were bought rather than how well they were built. The failure and advisory patterns below come from the same 5,727 tests and are worth reading on their own terms.

DVSA recorded wording

Most common failure items

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

1.A tyre seriously damaged45.1%
325 occurrencesTyre damaged or deteriorated explained
2.A tyre cords visible or damaged29.7%
214 occurrencesTyre ply or cord exposed, or the casing separating explained
3.Tyre tread depth not in accordance with the requirements28.2%
203 occurrencesTyre worn close to the legal limit explained
4.Wiper blade missing or obviously not clearing the windscreen16.5%
119 occurrencesWiper or washer not working properly explained
5.A steering ball joint with excessive wear or free play10.4%
75 occurrencesBall joint worn explained
6.Number plate does not conform to the specified requirements6.3%
45 occurrencesRegistration plate missing, insecure or illegible explained
7.A tyre seriously damaged2.5%
18 occurrencesTyre damaged or deteriorated explained
8.Windscreen washers not working or not providing sufficient fluid to clear the windscreen2.5%
18 occurrencesWiper or washer not working properly explained
9.A tyre seriously damaged1.8%
13 occurrencesTyre damaged or deteriorated explained
10.A suspension pin, bush or joint excessively worn1.7%
12 occurrencesSuspension arm bush worn explained

Warnings without a failure

Most common advisories

Share of all BMW IX 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 requirements30.6%
1,750 testsTyre worn close to the legal limit explained
2.Tyre tread depth not in accordance with the requirements4.7%
271 testsTyre worn close to the legal limit explained
3.A tyre seriously damaged3.9%
225 testsTyre damaged or deteriorated explained
4.Nail in tyre3.0%
171 tests
5.A tyre seriously damaged2.3%
130 testsTyre damaged or deteriorated explained
6.Child Seat fitted not allowing full inspection of adult belt2.0%
117 tests
7.A tyre seriously damaged0.8%
47 testsTyre damaged or deteriorated explained
8.A suspension pin, bush or joint excessively worn0.8%
43 testsSuspension arm bush worn explained

What gets tested

The IX fleet

Average mileage recorded at test: 31,423
Fuel mix of tested cars: Electric100.0%

Trim names grouped into this model (11)

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

IX I20
IX M60
IX XDRIVE 50 M SPORT
IX XDRIVE40
IX XDRIVE40 M SPORT
IX XDRIVE40 M SPORT EDITION
IX XDRIVE40 SPORT
IX XDRIVE40 SPORT EDITION
IX XDRIVE50 M SPORT
IX XDRIVE50 M SPORT EDITION
IX XDRIVE50 SPORT

Check a specific BMW IX

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

Compare within the range

Other BMW models

BMW 3 Series — 80.0% adjusted
BMW 1 Series — 77.6% adjusted
BMW 5 Series — 82.0% adjusted
BMW 2 Series — 82.9% adjusted
BMW X1 — 79.5% adjusted
BMW 4 Series — 83.2% adjusted
All BMW models

Common questions

How reliable is the BMW IX compared with other cars?: We do not publish a comparison for the BMW IX, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages. Its raw pass rate is 85.9% across 5,727 tests, but comparing a raw rate between models mostly ranks them by how new they are rather than how good they are. The failure and advisory patterns further down the page are still drawn from real tests and are worth reading.
What is the most common MOT failure on a BMW IX?: The item recorded most often is "A tyre seriously damaged", which appears in 45.1% of failed BMW IX 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 BMW IX?: The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 30.6% of all BMW IX tests. An advisory is not a failure: it flags something that will likely need attention before the next test.
What mileage does a BMW IX usually have at its MOT?: The average odometer reading recorded at test is 31,423 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.

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. No adjusted rate is shown because this model's tested examples do not cover enough of the national age and mileage range for standardisation to mean anything.

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.