BMW X4 (2020)
2020 BMW X4
CarHunch analysed 1,198 real MOT records for the 2020 BMW X4. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2020 BMW X4 is a strong performer on the MOT, with a 91.6% first-time pass rate that sits well above the UK average of 80%—both petrol and diesel variants pass at nearly identical rates (92.1% and 91.4% respectively), so fuel choice won't affect reliability expectations. The 13.3% of vehicles with a dangerous defect history is moderate rather than alarming, suggesting these are generally well-engineered cars without systemic safety concerns.
At 35,700 miles average, these vehicles are relatively low-mileage for their age and haven't yet accumulated the wear that drives failures up sharply. The average of 0.38 failures per vehicle is very low, though buyers should expect around 2 advisories per test—typically minor wear items like brake pads or suspension bushes—so budget for preventive maintenance every couple of years rather than expecting trouble-free ownership.
What to check before buying a 2020 BMW X4
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a BMW X4
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
CarHunch may earn a small commission if you buy via these links — at no extra cost to you.
Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (64%) | 771 | 91.4% | 0.39 |
| Petrol (35%) | 424 | 92.1% | 0.35 |
| Electric Diesel (0%) | 3 | 86.7% | 0.67 |
Mileage Distribution
Most 2020 BMW X4 vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2020 BMW X4 vehicles fall between 27,353 and 44,632 miles.
2020 BMW X4 — Still on the Road
Strong survival — 1,157 vehicles still getting MOTs in 2025, 100% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2022–2025.
MOT History Averages
Most Common MOT Issues — 2020 BMW X4
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
-
24.6%
Offside Rear Tyre worn close to legal limit/worn on edge
-
24.6%
Nearside Rear Tyre worn close to legal limit/worn on edge
-
17.2%
Offside Front Tyre worn close to legal limit/worn on edge
-
17.2%
Nearside Front Tyre worn close to legal limit/worn on edge
-
9.3%
Nearside Rear Child Seat fitted not allowing full inspection of adult belt ()
-
7.3%
Rear Brake pad(s) wearing thin
-
6.8%
Front Brake pad(s) wearing thin
-
5.6%
Nearside Rear Nail in tyre ()
Data covers a 3-year window centred on 2020. Counts include advisories and failures.
Found a specific BMW X4?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.