2014 Mercedes-Benz B-Class 1.5L Diesel · BN14 WAZ
2014 Mercedes-Benz B-Class (1.5L, diesel). First registered 01 Sept 2014. Recorded mileage 81,519 miles. MOT valid until 29 Dec 2026.
- Make & Model
- MERCEDES-BENZ B-CLASS
- Year / Origin
- 2014 · Birmingham
- Safety Recall
- Unknown
- MOT Status
- Valid until 29 Dec 2026
- Road Tax
- —
- Recorded Mileage
- 81,519 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.
BN14 WAZ Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 23/12/2025
- 81,519 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.
BN14 WAZ 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 (BN14 WAZ) between December 2022 and December 2025.
The record contains 4 passes and 1 failure.
The most recent test on 23 December 2025 was a pass, although the earlier record includes 1 failure that buyers may want to investigate.
BN14 WAZ Mileage History
- 20/12/202250,751 mi
- 12/12/202358,664 mi+7,913 mi
- 30/12/202472,217 mi+13,553 mi
- 23/12/202581,519 mi+9,302 mi
- 23/12/202581,519 mi
Average of roughly 10,224 miles per year across 5 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 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: Good
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 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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