2014 Mercedes-Benz B-Class 1.5L Diesel · KN64 KNF
2014 Mercedes-Benz B-Class (1.5L, diesel). First registered 01 Sept 2014. Recorded mileage 80,015 miles. MOT expired on 09 Nov 2026. Taxed until 01 Nov 2026.
- Make & Model
- MERCEDES-BENZ B-CLASS
- Year / Origin
- 2014 · Northampton
- Safety Recall
- Unknown
- MOT Status
- Expired on 09 Nov 2026
- Road Tax
- Taxed (01 Nov 2026)
- Recorded Mileage
- 80,015 mi
- ULEZ Compliance
- Non-Compliant (Pre-Euro 6 Diesel)
- Fuel & Engine
- DIESEL · 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.
KN64 KNF Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 10/11/2025
- 80,015 miles recorded at latest MOT
- 1 historical MOT failure
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
KN64 KNF 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 2014 Mercedes-Benz B-Class (KN64 KNF) between May 2022 and November 2025.
The record contains 4 passes and 1 failure.
The most recent test on 10 November 2025 was a pass, although the earlier record includes 1 failure that buyers may want to investigate.
KN64 KNF Mileage History
- 10/05/202268,772 mi
- 31/10/202375,571 mi+6,799 mi
- 04/11/202375,591 mi+20 mi
- 25/10/202475,611 mi+20 mi
- 10/11/202580,015 mi+4,404 mi
Average of roughly 3,207 miles per year across 5 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
Verified MOT failure trends, buying advice, and technical directory specifications.
Owner-reported defects, recurring MOT failure points, and estimated repair costs.
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Historical MOT pass rates and DVLA records for 2014 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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