Mini One (2009)
2009 Mini One
CarHunch analysed 625 real MOT records for the 2009 Mini One. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2009 MINI ONE falls noticeably short of the UK average, with a first-time pass rate of 72.4% against the national 80%, and petrol versions perform particularly poorly at just 65.5%—a significant gap worth taking seriously. Adding to that concern, over one in five of these cars (21.1%) have recorded a dangerous defect at some point, placing it in the riskier category for buyers.
These cars are averaging around 60,000 miles for their age, which is reasonable, but they're clocking up nearly 2.7 failures per MOT test and a high 12.5 advisories, suggesting wear is catching up faster than most. If you're considering one, budget for repairs and insist on a full pre-purchase inspection—the petrol models especially have a track record of reliability problems that won't sort themselves.
What to check before buying a 2009 Mini One
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.
- ⚠️ 21.1% 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 Mini One
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (68%) | 422 | 65.5% | 3.56 |
| Other (32%) | 200 | 87% | 0.84 |
| Diesel (0%) | 3 | 76.1% | 3 |
Mileage Distribution
Most 2009 Mini One 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 2009 Mini One vehicles fall between 44,914 and 73,162 miles.
2009 Mini One — Still on the Road
364 vehicles still getting MOTs in 2025 — 72% of the peak remain.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
MOT History Averages
Most Common MOT Issues — 2009 Mini One
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
-
98.6%
Oil leak, but not excessive
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60.7%
Exhaust Lambda reading after 2nd fast idle outside specified limits
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58.9%
Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits
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45.5%
Front Sub-frame corroded but not seriously weakened
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45.2%
Exhaust carbon monoxide content after 2nd fast idle exceeds default limits
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45.1%
Nearside Front Tyre worn close to legal limit/worn on edge
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44.7%
Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturer's specified limits
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43.2%
Rear Sub-frame corroded but not seriously weakened
Data covers a 3-year window centred on 2009. Counts include advisories and failures.
Found a specific Mini One?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.