2012 Mercedes-Benz C 2.1L Diesel · HN12 AWU
2012 Mercedes-Benz C (2.1L, diesel). First registered 19 Apr 2012. Recorded mileage 203,019 miles. MOT expired on 02 Sept 2024.
- Make & Model
- MERCEDES-BENZ C
- Year / Origin
- 2012 · Portsmouth
- Safety Recall
- Unknown
- MOT Status
- Expired on 02 Sept 2024
- Road Tax
- —
- Recorded Mileage
- 203,019 mi
- ULEZ Compliance
- Non-Compliant (Pre-Euro 6 Diesel)
- Fuel & Engine
- Diesel · 2.1L
- 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.
HN12 AWU Key Findings
- 3 MOT tests recorded
- Latest MOT passed on 04/09/2023
- 203,019 miles recorded at latest MOT
- 1 historical MOT failure
- 4 defects noted at the latest MOT
- Recurring lighting items (4 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
HN12 AWU MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
3 MOT tests are recorded for this 2012 Mercedes-Benz C (HN12 AWU) between September 2022 and September 2023.
The record contains 2 passes and 1 failure.
The most recent test on 04 September 2023 was a pass, although the earlier record includes 1 failure that buyers may want to investigate.
Across all tests, the most frequently flagged areas are: Lighting (4 issues), Tyres (4 issues), Brakes (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 Rear Tyre has ply or cords damaged (5.2.3 (d) (ii))”; “Nearside Rear Tyre has ply or cords damaged (5.2.3 (d) (ii))”.
HN12 AWU Mileage History
- 01/09/2022166,031 mi
- 04/09/2023203,017 mi+36,986 mi
- 04/09/2023203,019 mi+2 mi
Average of roughly 36,712 miles per year across 3 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
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Known faults for Mercedes-Benz Mercedes-Benz C-Class (W204)
Our database tracks 3 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
MOT Roadworthiness: Poor
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.
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Digital Service History
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MERCEDES-BENZ C Model Intelligence & Reliability
Verified MOT failure trends, buying advice, and technical directory specifications.
Owner-reported defects, recurring MOT failure points, and estimated repair costs.
Browse production generations, registration statistics, and trim variants.
Historical MOT pass rates and DVLA records for 2012 model year cars.
- OM651 Diesel Chain Tensioner Oil LeakModerate
The gasket on the timing chain tensioner can fail, leaking oil and potentially leading to timing chain issues due to inconsistent tension.
- Rear Subframe CorrosionSerious
The rear subframe rots from the inside out, leading to MOT failure. Mercedes often replaces these under goodwill.
- Electronic Steering Lock (ESL) failureSerious
The electronic steering lock module can fail, preventing the car from starting. The key is recognised but the steering remains locked. A common and expensive fault on W204s built before the facelift.
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