MOT cost .

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BMW

X4 M Competition Auto

2,743 MOT tests analysed. sits above the UK fleet average — here's where X4 M Competition Autos pass, fail, and end up on the retest sheet.

That's 16.7 points above the UK fleet average across our 1,984 tracked models — a confident result.

Pass

94.2%

Pass-after-fix

0.9%

Fail

4.5%

Avg miles

32,976

Pass + Pass-after-fix + Fail = 100%

ULEZ compliant

Petrol cars first registered from January 2006 meet Euro 4 — compliant in London ULEZ, Birmingham CAZ, Bristol CAZ, and Glasgow LEZ.

UK ULEZ & CAZ guide →

Performance by cohort

2 year bands · 2,743 tests

Pass rate is broadly flat across the cohorts — new and old X4 M Competition Auto examples track each other at the test bay.

2018–2020 cohort 2,137

Pass

94.0%

Fail

4.5%

PRS

1.1%

Avg mileage at test

35,430 mi

2021+ cohort 606

Pass

94.9%

Fail

4.5%

PRS

0.3%

Avg mileage at test

24,512 mi

Cohort = vehicle's first-registration year band. Same model, different generations of build.

The picture

X4 M Competition Auto: a strong MOT record by UK norms

Across 600 MOT tests, the X4 M Competition Auto returns 90.8% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is tyre tread under the limit. A tyre with the cords showing and a seriously damaged tyre round out the top three. Average tested mileage sits at 26,997, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.

ABI Insurance Group

Group 35–45

A high-group car — insurance costs will be significantly above average. Lower groups cost less to insure; UK fleet average is around Group 22.

Source: ABI Group Rating Panel · administered by Thatcham Research · groups cover standard variants; performance trims may sit higher. Browse all insurance groups →

35–45

out of 50

Compare quotes →

Top ten reasons for rejection.

Filter failures:

  1. 01

    Tyre tread depth not in accordance with the requirements

    34 occurrences · 1.2% of tests

  2. 02

    Wiper blade defective

    20 occurrences · 0.7% of tests

  3. 03

    Number plate does not conform to the specified requirements

    18 occurrences · 0.7% of tests

  4. 04

    A tyre cords visible or damaged

    16 occurrences · 0.6% of tests

  5. 05

    Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view

    14 occurrences · 0.5% of tests

  6. 06

    A tyre seriously damaged

    12 occurrences · 0.4% of tests

  7. 07

    Emissions levels exceed default limits

    8 occurrences · 0.3% of tests

  8. 08

    Emissions levels exceed default limits

    8 occurrences · 0.3% of tests

  9. 09

    A wheel with a loose or missing wheel nut, bolt or stud

    7 occurrences · 0.3% of tests

  10. 10

    Engine MIL illuminated indicating a malfunction

    6 occurrences · 0.2% of tests

Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.

Worst-case fix budget · top 4 failures

£155£270

If every one of this X4 M Competition Auto's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →

Try the calculator

Build your own retest budget.

Year-band analysis

Best year to buy. Worst to avoid.

First-time MOT pass rate split by registration band. Pass rates barely move across bands here, so the year you buy BMW X4 M Competition Auto makes little measurable difference to MOT outcomes.

Best band to buy

94.9%

2021+ registration

the 2021-on band climbs to 94.9% — a 0.9-point improvement. Tests in this band average 24,512 miles — roughly 11K miles fewer on the clock than the older band. Failures here are mostly wear items: tread depth below requirements of 1.6mm, does not conform to the specified requirements — the structural issues that drag down older examples don't appear in the top-10 for this band. Post-2020 examples are early in their MOT life and generally show the cleanest records.

Band to be cautious about

94.0%

2018–2020 registration

On the 2018–2020 band, the data shows a 94.0% pass rate against a fleet average of 94.9% on the newer band. The main culprits logged at test: tread depth below requirements of 1.6mm, blade defective, and has ply or cords exposed. Average mileage on test for this band is 35,430 miles — high-mileage wear items are a recurring theme.

Best band to buy: 2021+ (94.9% first-time pass). Worst band to avoid: 2018-2020 (94.0% pass). That's a 0.9-point spread across 2,137 older tests and 606 newer ones — year of build makes a material difference on this model.

Year-spread leaderboard →

Tools that pre-empt a retest.

Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.

My Motor World · affiliate

Parts & supplies for this fix

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Click Mechanic · affiliate

Book a mobile mechanic

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Mobile mechanic · UK-wide

Book a mechanic at your door.

Fixed-price quotes upfront. No garage needed. Click Mechanic sends a vetted local mechanic to you — home, work, or roadside.

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Owner reports · Honest John

What owners actually report.

Verbatim faults logged by owners on honestjohn.co.uk over recent years. We didn't summarise — these are the words people typed in.

What's good

Less practical than the equivalent BMW X3 SUV. Quite expensive to buy. Coupe SUV styling remains divisive for many.

Where it falls short

Less practical than the equivalent BMW X3 SUV. Quite expensive to buy. Coupe SUV styling remains divisive for many.

Buying or keeping an X4 M Competition Auto?

Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.

If you own an X4 M Competition Auto and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.