BMW 330 (2018)
2018 BMW 330
CarHunch analysed 3,774 real MOT records for the 2018 BMW 330. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2018 BMW 330 significantly outperforms the UK average with a 90% first-time pass rate against the 80% benchmark, though nearly 23% of these cars have recorded a dangerous defect at some point—a concerning proportion that warrants a pre-purchase inspection. Diesel variants edge ahead at 91.1% pass rate compared to the hybrid-electric majority at 89.8%, suggesting marginally better durability in the smaller sample.
At 57,933 miles average, these cars sit comfortably within expectations for their age and should be reliable workhorses, yet they average 0.61 failures and 4.1 advisories per test, pointing to predictable wear on non-critical systems rather than structural problems. Before buying, insist on a full service history and independent diagnostic check of the electrical and suspension systems, where most advisories tend to cluster on this platform.
What to check before buying a 2018 BMW 330
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.
- ⚠️ 22.8% of these vehicles have had a dangerous defect recorded. Enter the reg below — the full MOT history will show exactly what was flagged and whether it was resolved.
- 📄 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 330
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 |
|---|---|---|---|
| Hybrid Electric (Clean) (84%) | 3,187 | 89.8% | 0.63 |
| Diesel (13%) | 503 | 91.2% | 0.52 |
| Petrol (2%) | 82 | 91.7% | 0.55 |
| Electric Diesel (0%) | 1 | 80% | 1 |
| Electric (0%) | 1 | 100% | 0 |
Mileage Distribution
Most 2018 BMW 330 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 2018 BMW 330 vehicles fall between 42,102 and 70,873 miles.
2018 BMW 330 — Still on the Road
Strong survival — 3,008 vehicles still getting MOTs in 2025, 83% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.
MOT History Averages
Most Common MOT Issues — 2018 BMW 330
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
-
32.8%
Offside Rear Tyre worn close to legal limit/worn on edge
-
32%
Nearside Rear Tyre worn close to legal limit/worn on edge
-
24.5%
Nearside Front Tyre worn close to legal limit/worn on edge
-
24%
Offside Front Tyre worn close to legal limit/worn on edge
-
18.6%
COVID-19 6 MONTH EXTENSION
-
13.5%
Rear Brake pad(s) wearing thin
-
10.4%
Nearside Rear Child Seat fitted not allowing full inspection of adult belt ()
-
9.3%
Front Brake disc worn, pitted or scored, but not seriously weakened
Data covers a 3-year window centred on 2018. Counts include advisories and failures.
Found a specific BMW 330?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.