2012 Mercedes-Benz B-Class 1.8L Diesel · YR62 KNX
2012 Mercedes-Benz B-Class (1.8L, diesel). First registered 28 Sept 2012. Recorded mileage 80,373 miles. MOT valid until 09 Jan 2027.
- Make & Model
- MERCEDES-BENZ B-CLASS
- Year / Origin
- 2012 · Sheffield
- Safety Recall
- Unknown
- MOT Status
- Valid until 09 Jan 2027
- Road Tax
- —
- Recorded Mileage
- 80,373 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.
YR62 KNX Key Findings
- 18 MOT tests recorded
- Latest MOT passed on 08/01/2026
- 80,373 miles recorded at latest MOT
- 6 historical MOT failures
- 2 defects noted at the latest MOT
- Recurring brakes items (13 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
YR62 KNX MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
18 MOT tests are recorded for this 2012 Mercedes-Benz B-Class (YR62 KNX) between September 2015 and January 2026.
The record contains 12 passes and 6 failures.
The most recent test on 08 January 2026 was a pass, although the earlier record includes 6 failures that buyers may want to investigate.
Across all tests, the most frequently flagged areas are: Brakes (13 issues), Tyres (9 issues), Suspension (9 issues), Lighting (2 issues), Steering (1 issue). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 27 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: “Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i))”; “Registration plate lamp does not illuminate simultaneously with the position lamps (4.7.2 (a))”; “Offside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ”.
YR62 KNX Mileage History
- 24/09/20159,518 mi
- 27/09/201617,775 mi+8,257 mi
- 26/09/201725,283 mi+7,508 mi
- 25/09/201832,632 mi+7,349 mi
- 25/09/201832,632 mi
- 24/09/201938,968 mi+6,336 mi
- 24/09/202045,700 mi+6,732 mi
- 28/09/202045,701 mi+1 mi
- 07/05/202147,387 mi+1,686 mi
- 14/05/202147,837 mi+450 mi
- 19/04/202263,780 mi+15,943 mi
- 19/04/202263,780 mi
- 02/10/202372,258 mi+8,478 mi
- 25/09/202477,326 mi+5,068 mi
- 02/10/202477,336 mi+10 mi
- 08/01/202577,363 mi+27 mi
- 10/01/202577,390 mi+27 mi
- 08/01/202680,373 mi+2,983 mi
Average of roughly 6,884 miles per year across 18 recorded odometer readings.
Technical Specifications
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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
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- 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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