2009 Mercedes-Benz B-Class 1.5L Petrol · SN09 HMX
2009 Mercedes-Benz B-Class (1.5L, petrol). First registered 01 Apr 2009. Recorded mileage 83,195 miles. MOT valid until 11 Mar 2027. Taxed until 01 Nov 2026.
- Make & Model
- MERCEDES-BENZ B-CLASS
- Year / Origin
- 2009 · Edinburgh
- Safety Recall
- Unknown
- MOT Status
- Valid until 11 Mar 2027
- Road Tax
- Taxed (01 Nov 2026)
- Recorded Mileage
- 83,195 mi
- ULEZ Compliance
- ULEZ Compliant (Euro 4+)
- Fuel & Engine
- Petrol · 1.5L
- Reliability Guide
- Common Faults
Thinking of buying this vehicle? Free MOT and tax checks do not cover legal ownership. If outstanding finance exists, finance companies have legal right to repossess without compensation.
SN09 HMX Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 12/03/2026
- 83,195 miles recorded at latest MOT
- 3 historical MOT failures
- No defects recorded at the latest MOT
- Recurring brakes items (11 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
SN09 HMX MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
5 MOT tests are recorded for this 2009 Mercedes-Benz B-Class (SN09 HMX) between March 2025 and March 2026.
The record contains 2 passes and 3 failures.
The most recent test on 12 March 2026 was a pass, although the earlier record includes 3 failures that buyers may want to investigate.
Across all tests, the most frequently flagged areas are: Brakes (11 issues), Tyres (5 issues), Windscreen (2 issues), Suspension (2 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 8 advisory notices are recorded. Advisories flag items that passed but may need attention before the next test; they are not evidence of how well the vehicle has been serviced.
Recorded failure items include: “Offside Front Macpherson strut damaged and seriously weakened (5.3.3 (b) (i))”; “Fuel tank leaking (6.1.3 (b) (i))”; “Offside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))”.
SN09 HMX Mileage History
- 25/03/2025129,206 km
- 15/04/2025129,230 km+24 km
- 23/04/2025129,230 km
- 09/03/202683,195 mi
- 12/03/202683,195 mi
Average of roughly -47,753 miles per year across 5 recorded odometer readings.
Recorded mileage decreased between one or more tests — a potential clocking indicator worth verifying before purchase.
Technical Specifications
Core Specifications
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MOT Roadworthiness: Below Average
This rating reflects historical MOT pass rates and recurring advisory wear patterns from official DVSA test logs. Note that roadworthiness does not verify outstanding finance, insurance write-offs, or stolen records.
Verify lender finance agreements, insurance write-offs, police stolen registers, and mileage rollback.
Buyer's Guide & Inspection Advisory
Expert automotive synthesis from historical MOT defect records and market benchmarks.
Our Verdict
Exercise significant caution before purchasing this vehicle. While the most recent MOT was a pass, the inconsistent mileage and recent failure history suggest potential underlying issues.
The most critical step for a buyer is to investigate the mileage discrepancy. The recorded drop from 129,230 miles in April 2025 to 83,195 miles in March 2026 is highly irregular and requires immediate verification via service records or HPI checks to rule out odometer tampering or clerical error.
If the mileage is verified as accurate, ensure you request a full service history. Given the model's aggregate failure trends, pay close attention to the condition of the suspension components and drivetrain. Negotiate the price downwards if there is any uncertainty regarding the vehicle's recorded distance travelled.
The 1.5L petrol engine is generally positioned in a moderate insurance group for a Mercedes-Benz of this era. Fuel economy will depend heavily on driving style, but as a 2009 petrol model, it should be relatively efficient for urban use.
Maintenance costs for this B-Class model can be higher than average due to the complexity of the Mercedes-Benz parts. Expect typical servicing costs to be influenced by the age of the vehicle, with potential expensive repairs related to shock absorbers or drive shafts, which are common failure points for this model aggregate.
You must conduct a thorough inspection of the suspension system. Data for this model shows that shock absorbers are a top reason for MOT failures. Check for any leaks, uneven tyre wear, or knocking sounds when driving over bumps.
Additionally, inspect the drive shaft joints and tyres. Since these are identified as common failure points in the aggregate data for the B-Class, ensure they show no signs of excessive play or significant tread wear. Finally, cross-reference the physical odometer reading with the MOT history to resolve the mileage inconsistency noted in the records.
This 2009 red Mercedes-Benz B-Class (SN09HMX) presents a complex history. While the 2026 MOT pass at 83,195 miles appears positive, there is a highly unusual discrepancy between the 2025 mileage of 129,230 and the 2026 mileage of 83,195. The vehicle has experienced three failures within a twelve-month period between March 2025 and March 2026.
Aggregate data for this model shows an 80.1% MOT pass rate, with common failures occurring in tyres, shock absorbers, and drive shaft joints.
Reviewed by the IsItAGoodCar editorial team — Verified automotive analysis synthesized from official vehicle registries.
Data Sources
DVSA
Official MOT test logs & failure reasons
DVLA
Tax, registration & powertrain specs
Experian
Finance, stolen markers & total loss
AI Analysis
Historical fault & advisory patterns
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