BMW X4 Reliability, MOT Pass Rate & Common Faults
Free BMW X4 car check
Is the BMW X4 reliable? We analysed 108,932 real MOT tests across 15,891 vehicles to find out.
Got a specific BMW X4? Enter the reg for a free check:
The BMW X4 is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used BMW X4.
BMW X4 Number Plates
Number plates registered to a BMW X4. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
BMW X4 MOT Pass Rate by Year
How likely is a BMW X4 to pass its MOT? Here's the pass rate for each registration year, newest first.
BMW X4 Common Faults & Problems
These are the most common serious faults found on BMW X4 models during MOT testing — flagged as dangerous or major failures that need immediate attention.
BMW X4 Mileage — What's Normal?
How many miles does a typical BMW X4 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
BMW X4 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the BMW X4 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2021 | 247 | 90.3% | 21,445 | 29,915 | 40,108 |
| 2020 | 4,890 | 89.3% | 24,126 | 34,014 | 46,346 |
| 2019 | 18,596 | 89.6% | 26,498 | 38,097 | 52,910 |
| 2018 | 13,174 | 88.8% | 29,760 | 43,550 | 60,875 |
| 2017 | 16,678 | 87.4% | 32,276 | 47,271 | 66,032 |
| 2016 | 24,447 | 85.5% | 36,531 | 53,660 | 74,029 |
| 2015 | 21,413 | 84.6% | 40,323 | 59,211 | 81,686 |
| 2014 | 8,459 | 85.1% | 40,424 | 60,530 | 83,176 |
How Long Does a BMW X4 Last?
Based on 15,891 BMW X4 vehicles on UK roads.
BMW X4 Mileage Distribution
Total mileage recorded across all BMW X4 MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used BMW X4
Based on MOT pass rates across all registration years with sufficient test data.
90.3% MOT pass rate from 247 tests
84.6% MOT pass rate from 21,413 tests
The best year to buy a used BMW X4 is 2021, which has the highest MOT pass rate at 90.3% across 247 tests. The 2015 model year has the lowest pass rate at 84.6% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the BMW X4 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| BMW X4 THIS CAR | 86.9% | 108,932 | 48,578 mi | 12 yrs |
| BMW 3 Series | 75.1% | 12,840,406 | 90,743 mi | 37 yrs |
| BMW 118 | 81.5% | 1,923,256 | 64,042 mi | 22 yrs |
| BMW X5 | 77% | 1,735,343 | 83,401 mi | 25 yrs |
| Mitsubishi Space Wagon | 65% | 151,903 | 100,271 mi | 36 yrs |
Compared to the BMW 3 Series (75.1% pass rate) and the BMW 118 (81.5% pass rate), the BMW X4 outperforms both on MOT reliability.
Found a BMW X4 you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific BMW X4Should you buy a used BMW X4?
The BMW X4 has an overall MOT pass rate of 86.9% across 108,932 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth below requirements of 1.6mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a BMW X4 with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical BMW X4 owner drives around 7,821 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most BMW X4 models stay on UK roads for around 12 years. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.