BMW 523 (2009)
2009 BMW 523
CarHunch analysed 141 real MOT records for the 2009 BMW 523. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2009 BMW 523 passes its MOT at 83.1%, slightly above the UK average of 80%, which is reassuring—but one in three of these cars has experienced a dangerous defect at some point, a significantly higher concern rate than typical. This suggests the model has some systemic weaknesses that can develop into serious safety issues.
At 71,000 miles median, these cars are showing fairly typical wear for their age, yet they're averaging 2.51 failures and 11.6 advisories per test, indicating persistent minor and moderate problems across the board. If you're considering one, budget for regular maintenance beyond routine servicing and have a pre-purchase inspection focus specifically on suspension, braking, and electrical systems where BMWs of this generation commonly fail.
What to check before buying a 2009 BMW 523
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.
- ⚠️ 34% 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 523
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 (97%) | 137 | 82.9% | 2.55 |
| Diesel (3%) | 4 | 87.6% | 1.25 |
Mileage Distribution
Most 2009 BMW 523 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 BMW 523 vehicles fall between 53,701 and 88,748 miles.
2009 BMW 523 — Still on the Road
Strong survival — 90 vehicles still getting MOTs in 2025, 80% of the peak.
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 BMW 523
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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59.1%
Nearside Rear Tyre worn close to the legal limit
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54.5%
Under-trays fitted obscuring some underside components
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53.4%
Offside Rear Tyre worn close to the legal limit
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40.5%
Oil leak, but not excessive
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36.4%
Engine covers fitted obscuring some components in the engine bay
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30.6%
Nearside Rear Tyre worn close to legal limit/worn on edge
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26.6%
Offside Rear Tyre worn close to legal limit/worn on edge
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24.9%
Nearside Front Tyre worn close to the legal limit
Data covers a 3-year window centred on 2009. Counts include advisories and failures.
Found a specific BMW 523?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.