Alexander Dennis Unknown (2009)
2009 Alexander Dennis Unknown
CarHunch analysed 1,128 real MOT records for the 2009 Alexander Dennis Unknown. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2009 Alexander Dennis is a commercial bus or coach, not a private car, and the 4.9% pass rate reflects that context—these vehicles undergo far stricter commercial MOT standards than the 80% UK average for cars, and only a tiny fraction pass first-time. The dangerous defect rate of 0.6% is acceptably low, though operators should expect these heavy-duty machines to rack up serious mileage and require continuous maintenance.
At 186,000 median miles, these vehicles are naturally well-used, yet they're averaging just 0.03 failures and 0.1 advisories per test, which speaks to how robustly they're engineered once maintained properly. If you're operating or considering one, budget for ongoing professional servicing and inspections—these aren't vehicles you can neglect, but they're proven workhorses when cared for correctly.
What to check before buying a 2009 Alexander Dennis Unknown
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 Alexander Dennis Unknown
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Mileage Distribution
Most 2009 Alexander Dennis Unknown 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 Alexander Dennis Unknown vehicles fall between 55,654 and 309,585 miles.
2009 Alexander Dennis Unknown — Still on the Road
Strong survival — 43 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 — 2009 Alexander Dennis Unknown
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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16.3%
Oil leak, but not excessive
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6.7%
Vehicle structure is corroded but structural rigidity is not significantly reduced
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5.9%
Service brake efficiency below requirements
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4.4%
oil residue engine area
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3.7%
Parking brake efficiency below requirements
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3.7%
Nearside Rear Outer Tyre has a cut but not deep enough to reach the ply or cords
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3%
Offside Front Vehicle structure or chassis corroded within 30cm of a mounting, but not seriously affecting overall security
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3%
Anti-lock braking system warning lamp indicates an ABS fault
Data covers a 3-year window centred on 2009. Counts include advisories and failures.
Found a specific Alexander Dennis Unknown?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.