BMW 4 Series Car CheckFull history check, MOT history and common problems
Free BMW 4 Series vehicle check by reg: MOT history, mileage and tax. Buying one? The full car history check shows outstanding finance, insurance write-offs, stolen markers, keepers and plate changes.
- 86% MOT pass rate
- 2,345 4 Seriess checked
- 22.6% of BMWs had outstanding finance
BMW 4 Series reg check
Full BMW 4 Series history check from £3.99
The MOT record is free, and it only shows the car's condition on test day. What a seller may not mention is in the full BMW 4 Series car check:
Of the 389 BMW vehicles checked with a full CarCheckUp report, 22.6% had outstanding finance recorded, 14.7% an insurance write-off record and 58.6% a number plate change.
- Outstanding finance: lender and agreement
- Insurance write-off: Cat S, N, C or D
- Police stolen marker
- High risk register
- Previous keepers and last change
- Plate and colour changes
- Scrapped, imported or exported
- Mileage anomaly check
£3.99 a report in the 5-report bundle, £11.99 for a single report; unused reports never expire. Shown on screen straight away and sent by email. No subscription. Start with the free check: you only pay for the full report.
Free BMW 4 Series MOT History and Mileage Data
What the MOT records of 2,245 BMW 4 Series vehicles show. The full check above covers what the MOT doesn't.
- 86%of MOT tests passedUK average 77%
- 8,900typical miles a year
- 1.4%have a mileage anomalyan MOT reading lower than an earlier one
- 15,262MOT tests analysed
- 2015–2018built (middle half)
- 65%diesel; 33% petrol; 1% electric diesel
BMW 4 Series common problems: most common MOT failures and advisories
The defects MOT testers record most often on the BMW 4 Series, as a share of all its MOT tests (the same defect on any wheel or side counts once): the 4 Series's known weak points. Check these on the car you're viewing, or on your own before its next MOT.
Top 7 BMW 4 Series MOT failures
Reasons the car failed its MOT.
- Tyre tread depth below requirements of 1.6mm1.7%
- Tyre has ply or cords exposed1.3%
- Tyre has a cut in excess of the requirements deep enough to reach the ply or cords1.2%
- Tyre has a bulge, caused by separation or partial failure of its structure1.1%
- Brake pad less than 1.5 mm thick1.0%
- Windscreen washer provides insufficient washer liquid0.8%
- Shock absorbers has a serious fluid leak0.6%
Top 14 BMW 4 Series MOT advisories
Wear the tester noted: not a failure yet, but money to budget for.
- Tyre worn close to legal limit/worn on edge11.6%
- Brake pad wearing thin6.2%
- Brake disc worn, pitted or scored, but not seriously weakened3.2%
- Play in steering rack inner joint2.3%
- Nail in tyre1.9%
- Windscreen damaged but not adversely affecting driver's view1.5%
- Child Seat fitted not allowing full inspection of adult belt1.3%
- Shock absorbers has light misting of oil1.3%
- Tyre has a cut but not deep enough to reach the ply or cords1.1%
- Brake disc worn, but not excessively0.9%
Show all 14
- Tyre slightly damaged/cracking or perishing0.9%
- Suspension arm pin or bush worn but not resulting in excessive movement0.6%
- Road wheel slightly distorted0.6%
- Service brake fluctuating, but not excessively0.5%
- Tyres: 53% of failed tests
- Lights and indicators: 20% of failed tests
- Brakes: 15% of failed tests
- Windscreen and wipers: 11% of failed tests
- Suspension: 9% of failed tests
- Tyres advisory: 24% of tests
- Brakes advisory: 14% of tests
- Suspension advisory: 5% of tests
Based on the DVSA MOT histories of all 2,245 BMW 4 Series vehicles with an MOT checked on CarCheckUp since April 2023 (15,262 tests, retests included). Updated 2 October 2026. Every MOT test and advisory for one car is in the free MOT history check, and our free mileage check flags a lower reading. Market-wide figures: UK Used Car Risk Report. How we calculate these figures. MOT and DVLA data: contains public sector information licensed under the Open Government Licence v3.0.
BMW 4 Series versions
Every BMW 4 Series version checked on CarCheckUp counts on this page, grouped by the word after "4 Series" in the DVLA record. Pass rates where at least 300 vehicles were checked.
| Version | Vehicles | MOT pass rate | Top failure area |
|---|---|---|---|
4 Series 420
|
1,406 | 86% | Tyres |
4 Series 430
|
252 | – | – |
4 Series 435
|
229 | – | – |
4 Series 440
|
84 | – | – |
4 Series 428
|
66 | – | – |
4 Series 420I
|
53 | – | – |
| 4 Series (no version recorded) | 38 | – | – |
4 Series 418
|
37 | – | – |
4 Series 420D
|
27 | – | – |
4 Series M440I
|
19 | – | – |
4 Series 425
|
12 | – | – |
Key history checks before buying a used BMW 4 Series
All of these are in every full report, with 150+ more data points.
Outstanding finance
A BMW on hire purchase, PCP or a logbook loan may still belong to the lender. Buying it can lead to a dispute over who owns it. Outstanding finance check
Insurance write-off (Cat S, N, C, D)
Shows if an insurer declared the car a total loss. Cat S and N cars can return to the road, but the record lowers the value and can affect insurance. Write-off check
Police stolen marker
Checks the Police National Computer. A stolen car can be taken back, leaving you without the car or your money. Stolen car check
High risk register
Shows if a finance company, insurer or the police has registered an interest in the 4 Series. Find out why before you buy.
Mileage anomaly check & MOT history
Free: every MOT mileage reading compared for drops, with advisories and failures. Free mileage check
Previous keepers & plate changes
How many keepers the car has had and when, plus number plate changes that can separate a car from its history. Previous owners check
More free and full vehicle checks for a BMW 4 Series
Full BMW 4 Series car check from £3.99 a report
Finance, write-off, stolen, keepers, plate changes and 150+ data points on the BMW 4 Series you're looking at. The MOT history and mileage come free.
Check a 4 Series by reg → See a sample reportBMW 4 Series MOT questions
How do I check a used BMW 4 Series for outstanding finance or a write-off?
Run a full car history check on its registration. Of the 389 BMW 4 Series vehicles checked with a full CarCheckUp report, 22.6% had outstanding finance recorded and 14.7% an insurance write-off record. The report also shows stolen markers, keepers, plate and colour changes.
Is a BMW 4 Series car check free?
The MOT history, mileage anomaly check, tax and DVLA details of any BMW 4 Series are free. The full car history check (finance, write-off, stolen, keepers and 150+ data points) is paid, from £3.99 a report.
What is the most common MOT failure on the BMW 4 Series?
Tyre tread depth below requirements of 1.6mm: found at 1.7% of the BMW 4 Series MOT tests we analysed. By area, tyres items appear in 53% of failed tests.
What is the BMW 4 Series MOT pass rate?
86% of 15,262 MOT tests on 2,245 BMW 4 Series vehicles checked on CarCheckUp were passed (retests included). The UK average across all vehicles we checked is 77%.
What are the common problems with the BMW 4 Series?
Going by its MOT records, the BMW 4 Series's most common failures are tyre tread depth below requirements of 1.6mm (1.7% of tests); tyre has ply or cords exposed (1.3% of tests); tyre has a cut in excess of the requirements deep enough to reach the ply or cords (1.2% of tests). The full list of the top 20 MOT failures and advisories is on this page.
What is the most common MOT advisory on the BMW 4 Series?
Tyre worn close to legal limit/worn on edge: noted at 11.6% of tests. An advisory is not a failure, but it is wear to budget for.
How many miles a year is a BMW 4 Series typically driven?
About 8,900 miles a year (the median, from MOT mileage readings). 1.4% have a mileage anomaly: an MOT reading lower than an earlier one.
More BMW car checks and guides
- BMW 3 Series car check
- BMW 1 Series car check
- BMW 5 Series car check
- BMW X5 car check
- BMW 2 Series car check
- BMW X3 car check
- BMW X1 car check
- All BMW models