2012 Mercedes-Benz C 2.1L Diesel · HN12 AWW
2012 Mercedes-Benz C (2.1L, diesel). First registered 25 Apr 2012. Recorded mileage 96,164 miles. MOT expired on 19 Dec 2023.
- Make & Model
- MERCEDES-BENZ C
- Year / Origin
- 2012 · Portsmouth
- Safety Recall
- Unknown
- MOT Status
- Expired on 19 Dec 2023
- Road Tax
- —
- Recorded Mileage
- 96,164 mi
- ULEZ Compliance
- Non-Compliant (Pre-Euro 6 Diesel)
- Fuel & Engine
- Diesel · 2.1L
- Reliability Guide
- Common Faults
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HN12 AWW Key Findings
- 2 MOT tests recorded
- Latest MOT passed on 03/12/2022
- 96,164 miles recorded at latest MOT
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
HN12 AWW MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
2 MOT tests are recorded for this 2012 Mercedes-Benz C (HN12 AWW) between December 2021 and December 2022.
The record contains 2 passes and 0 failures.
No failures or advisories appear anywhere in the recorded tests, so the documented MOT record is relatively clean.
HN12 AWW Mileage History
- 11/12/202190,109 mi
- 03/12/202296,164 mi+6,055 mi
Average of roughly 6,191 miles per year across 2 recorded odometer readings.
Technical Specifications
Core Specifications
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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: 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.
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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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