2012 Mercedes-Benz B-Class 1.8L Diesel · KU12 JDK
2012 Mercedes-Benz B-Class (1.8L, diesel). First registered 02 Mar 2012. Recorded mileage 88,101 miles. MOT valid until 21 Jan 2027.
- Make & Model
- MERCEDES-BENZ B-CLASS
- Year / Origin
- 2012 · Northampton
- Safety Recall
- Unknown
- MOT Status
- Valid until 21 Jan 2027
- Road Tax
- —
- Recorded Mileage
- 88,101 mi
- ULEZ Compliance
- Non-Compliant (Pre-Euro 6 Diesel)
- Fuel & Engine
- Diesel · 1.8L
- 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.
KU12 JDK Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 22/01/2026
- 88,101 miles recorded at latest MOT
- 2 historical MOT failures
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
KU12 JDK 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 2012 Mercedes-Benz B-Class (KU12 JDK) between January 2024 and January 2026.
The record contains 3 passes and 2 failures.
The most recent test on 22 January 2026 was a pass, although the earlier record includes 2 failures that buyers may want to investigate.
KU12 JDK Mileage History
- 15/01/202477,995 mi
- 16/01/202582,887 mi+4,892 mi
- 17/01/202582,882 mi-5 mi
- 22/01/202688,101 mi+5,219 mi
- 22/01/202688,101 mi
Average of roughly 5,003 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
Identification & Status
Dimensions & Weights
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Known faults for Mercedes-Benz Mercedes-Benz B-Class (W246)
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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Digital Service History
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MERCEDES-BENZ B-CLASS 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.
- 7G-DCT Gearbox JudderModerate
The dual-clutch automatic can become hesitant or jerky if clutch wear is present or fluid changes have been skipped.
- OM651 Diesel Timing Chain Tensioner Oil LeakModerate
The gasket on the timing chain tensioner is a frequent leak point. Oil loss can reduce tensioner pressure and lead to chain rattle and eventual stretch.
- Water ingress in boot from rear air vent sealsModerate
The rear air vent seals behind the bumper can fail, allowing water into the boot. This can damage the rear SAM electrical module, causing lighting and locking faults.
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