Pass rate
89.2%
Above average — 1.3 pts ahead of the 87.9% that cars this age and mileage manage.
Across 6,520 recorded tests.
Typical repair bill £41–£97
2018 BMW M4 MOT pass rate
- 2018
- typical 34,611 mi
Check your postcode
Most common fault
Tyres
49.0% of faults · 19.8% nationally
mostly tread below the limit, cuts and sidewall bulges.
Part only £55–£85 for Tread depth below 1.6 mm. What fitting it takes →
1.7 pts down across model years — 6.2% in 2014, 4.5% in 2020.
Which year to buy
- Best 2020 90.3% pass
- Avoid 2017 88.2% pass
Across the 7 years on record, a spread of 2.1 points. See every year →
- First-attempt pass
- 88.1%
- Typical mileage
- 35k mi
The 2018 BMW M4 MOT pass rate is 89.2% of its MOT tests — 1.3 points ahead of what its age and mileage predict. Tyres is the biggest single reason it fails, at 49.0% of what testers record.
Expert verdict
Tyres: 2.5× the national share
Tyres make up 49.0% of everything recorded on the 2018 BMW M4, against 19.8% nationally — 29.2 points above. Check all four tyres yourself, including the inner shoulders, and look at the date stamp — a tyre can pass on tread and still be six years old.
- When it fails, it costs. Only 6% of this model’s typical repairs come in under £30 in parts — the failures here tend to be the kind that need a garage rather than a bulb.
Written from this page's own figures: fault shares against the national composition, the like-for-like pass rate, and the priced repair list. How these are worked out
Watching a BMW M4? Get an email when these numbers change .
How does the 2018 BMW M4 compare?
Cars of this age and mileage average 87.9%, so this figure is 1.3 points ahead of what its age and mileage predict. On a first attempt, before any retests, the figure drops to 88.1%. The median 2018 BMW M4 in this dataset had covered 34,611 mi.
Pass rates also shift with the test month: tests recorded October–March passed 89.7% of the time, April–September 88.8%.
The single most recorded failure item is "Coil spring fractured or broken", noted on 2.68% of tests.
- 6,520 recorded tests behind this page.
- 89.2% overall pass rate, 88.1% on a first attempt.
- Across every year of the BMW M4, the average is 89.2% — best year 2020 (90.3%), worst 2017 (88.2%).
Figures count every completed test on this vehicle-year in the dataset, including retests. See methodology for the exact definition.
This page's data
- Tests analysed
- 6,520
- Typical mileage (median)
- 34,611 mi
- Make and model
- BMW M4
- Updated
- 2026-11-07
Source: DVSA anonymised MOT test data (2023–2025), OGL v3.0.
Top part to budget for
Coil Spring
Usually a DIY or independent-garage job.
Does mileage affect the M4 MOT pass rate?
Pass rate by odometer reading. Bar lengths start at 73% so small gaps stay visible.
Where the BMW M4 is most common
Across all M4 model years on record (2014–2020): 20,282 BMW M4 cars tested in a recordable postcode area, across 36,841 tests. Birmingham (B) has the most, with 646 cars tested there. Cars are counted by the postcode area of the MOT station, so this is where they were tested, not necessarily where their owners live.
| # | Postcode area | Cars | Pass rate |
|---|---|---|---|
| 1 | Birmingham (B) | 646 | 92.7% |
| 2 | Peterborough (PE) | 462 | 89.8% |
| 3 | Reading (RG) | 431 | 87.6% |
| 4 | Leicester (LE) | 416 | 90.3% |
| 5 | Guildford (GU) | 402 | 86.8% |
| 6 | Sheffield (S) | 384 | 90.9% |
| 7 | Derby (DE) | 380 | 92.1% |
| 8 | Chelmsford (CM) | 343 | 90.7% |
| 9 | High Wycombe (HP) | 340 | 88.4% |
| 10 | Crawley (RH) | 334 | 87.4% |
| 11 | Nottingham (NG) | 327 | 87.8% |
| 12 | Coventry (CV) | 326 | 92.0% |
| 13 | Newcastle upon Tyne (NE) | 324 | 87.2% |
| 14 | Slough (SL) | 306 | 91.7% |
| 15 | Southampton (SO) | 280 | 89.1% |
| 16 | Ashford (TN) | 271 | 91.9% |
| 17 | Milton Keynes (MK) | 262 | 88.6% |
| 18 | Basildon (SS) | 259 | 92.3% |
| 19 | Bristol (BS) | 258 | 88.4% |
| 20 | Romford (RM) | 253 | 91.9% |
The twenty areas with the most BMW M4 cars in the record, sorted by car count — sort the columns for a different question. Cars tested at a station whose postcode area could not be resolved are counted in the model's total but in no area, so the shares add up to slightly under 100% even across every area, and an area's cars are a subset of the model's. Pass rate is blank below 30 tests in an area, where a percentage is noise rather than a finding. How this model's pass rate varies by postcode →
Regional pass rates for the M4
| Region | Tests | Pass rate |
|---|---|---|
| South East | 1,667 | 89.5% |
| East of England | 827 | 89.8% |
| North West | 659 | 89.2% |
| West Midlands | 646 | 91.2% |
| Yorkshire | 502 | 88.2% |
| Scotland | 496 | 85.1% |
| South West | 465 | 88.2% |
| East Midlands | 439 | 90.9% |
| London | 317 | 94.6% |
| North East | 292 | 84.6% |
| Wales | 210 | 87.6% |
Regions come from the postcode area recorded at the test station. Areas on region borders are assigned to the region with the majority of their population.
What fails a 2018 M4
Everything a tester recorded on this vehicle, grouped into the inspection sections that produced it. The notch on each bar is the national share, so you can see at a glance whether this car is unusual or just ordinary.
A test can record several items, so these percentages do not add up to 100%. The exact strings, with prices, are in the full DVSA record at the bottom of this page.
Before your test
Three checks worth doing on a 2018 M4
These are not generic tips — they are the faults recorded most often on this exact model, rewritten as things you can check yourself. All three take about ten minutes and cost nothing.
-
Check the coil springs 2.7% of tests
“coil spring fractured or broken”
Look up inside each wheel arch with a torch, all the way round the spring. A snapped spring usually breaks at the very bottom coil, where a quick glance will not reach.
-
Check the windscreen 1.8% of tests
“windscreen damaged”
Check the driver’s side of the screen within the swept area for chips and cracks; anything larger than 10mm in the driver’s central view is a fail. Most chips can be resin-repaired for far less than a new screen.
-
Check the suspension joints 0.6% of tests
“ball joint excessively worn”
With the car parked on level ground, rock the top of each front wheel in and out while someone watches the suspension arm. Clunks, or rubber boots split and greasy, are what testers record here.
Shares are the proportion of tests on this vehicle that recorded the item, so they overlap: one test can record several.
What it costs to get a 2018 M4 through its MOT
Across the 10 items that are recorded most often on this model, the average repair comes to £41–£97 — and 6% of those repairs are parts that cost under £30.
- Average repair across the 10 common items
- £41–£97
- Cheapest common item: washers provides insufficient washer liquid
- £5–£15
- Dearest common item: windscreen damaged
- £80–£200
- Common items a careful owner can do at home
- 90%
- Repairs that still cost under £30
- 6%
Estimates from typical UK parts prices, weighted by how often each item appears in 6,520 MOT tests on this vehicle. They exclude diagnostics, retest fees and garage labour where the part is a DIY fit, and they are not figures from the DVSA dataset. Older and higher-mileage examples cost more than the average. How these estimates are built → · All MOT repair costs → · Cheapest cars to put through a test →
Every year of the M4, side by side
7 model years on record, from 2014 to 2020. Across them the pass rate runs from 88.2% to 90.3% — a spread of 2.1 points. The bar under each year is the item that failed it most often.
- 2014 90.0% windscreen damaged but not…
- 2015 88.9% coil spring fractured or broken
- 2016 88.8% coil spring fractured or broken
- 2017 88.2% coil spring fractured or broken
- 2018 89.2%coil spring fractured or broken
- 2019 90.2% has ply or cords exposed
- 2020 90.3% has ply or cords exposed
Colour is the pass rate on a fixed scale, so a block means the same thing on any model. Each year links to its own page with the full fault breakdown.
Compare the 2018 BMW M4 with another year
The raw pass rate mostly measures age. The year comparison adds the like-for-like figure, the mileage bands and the repair bill.
Other 2018 cars with a similar record
- Suzuki Ignis 89.2%
- Alfa Romeo Stelvio 89.2%
- Skoda Octavia 89.3%
- Peugeot 108 89.3%
- Volkswagen Sharan 89.3%
- Jaguar F-Pace 89.1%
Closest pass rates among 2018 cars with at least 2,000 tests, so a small sample cannot flatter itself into the list. See the full rankings: best and worst MOT pass rates.
The full DVSA record for the 2018 BMW M4 10 failure items · 6 advisories · 10 inspection categories · mileage brackets · all of it in the page, none of it above the fold
Every inspection category
Shares of the 3,000 individual items recorded on this vehicle, and the same share across all cars nationally. A single test can record several items, so a row is not a percentage of tests.
| Category | Items | This car | Nationally | Difference |
|---|---|---|---|---|
| Tyres | 1,479 | 49.00% | 19.76% | +29.24 |
| Brakes | 472 | 15.60% | 20.89% | −5.29 |
| Suspension | 317 | 10.50% | 20.98% | −10.48 |
| Visibility | 215 | 7.10% | 4.97% | +2.13 |
| Non-component advisories | 211 | 7.00% | 4.18% | +2.82 |
| Noise, emissions and leaks | 105 | 3.50% | 5.52% | −2.02 |
| Lamps, reflectors and electrical equipment | 95 | 3.10% | 12.21% | −9.11 |
| Identification of the vehicle | 61 | 2.00% | 1.76% | +0.24 |
| Road Wheels | 24 | 0.80% | 0.75% | +0.05 |
| Body, chassis, structure | 21 | 0.70% | 5.57% | −4.87 |
The exact failure items, in the tester's words
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Coil spring fractured or broken Suspension | Major | 2.7% | £25–65 |
| Has ply or cords exposed Tyres | Major | 2.3% | £45–95 |
| Windscreen damaged but not adversely affecting driver's view Visibility | Minor | 1.8% | £80–200 |
| Has a cut in excess of the requirements deep enough to reach the ply or cords Tyres | Major | 1.8% | £45–95 |
| Ball joint excessively worn Suspension | Major | 0.61% | £18–45 |
| Tread depth below requirements of 1.6mm Tyres | Major | 0.43% | £45–95 |
| Registration plates does not conform to the specified requirements Identification of the vehicle | Major | 0.40% | £20–80 |
| Wipers blade defective Visibility | Minor | 0.40% | £8–22 |
| Has a tear, caused by separation or partial failure of its structure Tyres | Major | 0.35% | £45–95 |
| Washers provides insufficient washer liquid Visibility | Major | 0.31% | £5–15 |
Severity is as recorded: Major and Dangerous fail the test outright; Minor and Advisory do not. Costs are estimates from typical UK parts prices — see how they are built.
What testers noted without failing the car
Advisories are the early warnings — the same parts a year or two before they fail. Reading them is how you tell a car that has been maintained from one that has been patched.
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Tread depth below requirements of 1.6mm Tyres | Advisory | 9.9% | £45–95 |
| Brake discs in such a condition that it is seriously weakened Brakes | Advisory | 3.7% | £45–110 |
| Has a tear, caused by separation or partial failure of its structure Tyres | Advisory | 2.9% | £45–95 |
| Non-component advisories Nail in tyre Non-component advisories | Advisory | 2.4% | £45–95 |
| Has a cut in excess of the requirements deep enough to reach the ply or cords Tyres | Advisory | 1.7% | £45–95 |
| Tread depth tread pattern not visible over the whole tread area when minimum depth required is 1.0mm Tyres | Advisory | 1.7% | £45–95 |
Pass rate by mileage
| Mileage | Tests | Pass rate | Median odometer |
|---|---|---|---|
| 0-30k | 2,464 | 91.6% | 21,255 mi |
| 30-60k | 3,495 | 88.4% | 41,823 mi |
| 60-90k | 509 | 84.3% | 69,373 mi |
| 90-120k | 41 | 82.9% | 98,067 mi |
| 120k+ | 11 | 81.8% | 130,388 mi |
Source: 6,520 recorded tests on this vehicle-year. Every row above is recomputed from the same DVSA extract as the rest of the page — see the methodology.
2018 M4 MOT questions
What is the MOT pass rate for a 2018 BMW M4?
89.2% of the 6,520 2018 BMW M4 tests in this dataset passed, against a national average of 87.9% for cars first used in 2018. First-attempt pass rate: 88.1%.
What are the most common MOT failures on a 2018 BMW M4?
The three most recorded items are coil spring fractured or broken (2.68%), has ply or cords exposed (2.25%), windscreen damaged but not adversely affecting driver's view (1.81%). Percentages are the share of tests on this vehicle that recorded the item.
Does mileage affect the 2018 BMW M4 MOT pass rate?
Yes. Cars under 30,000 miles passed 91.6% of the time, falling to 81.8% for those over 120,000 miles. The median 2018 BMW M4 in this dataset had covered 34,611 mi.
Does the season affect the 2018 BMW M4 MOT pass rate?
Tests recorded in the winter months (October–March) passed 89.7% of the time; summer months (April–September) passed 88.8%. Brakes, tyres and lights are tested harder in bad weather, but the difference is small on most models.