2014 SEAT Leon 1.6L Diesel · KM14 BYO
2014 SEAT Leon (1.6L, diesel). First registered 03 Apr 2014. Recorded mileage 103,955 miles. MOT expired on 30 Oct 2026.
- Make & Model
- SEAT LEON
- Year / Origin
- 2014 · Northampton
- Safety Recall
- Unknown
- MOT Status
- Expired on 30 Oct 2026
- Road Tax
- —
- Recorded Mileage
- 103,955 mi
- ULEZ Compliance
- Non-Compliant (Pre-Euro 6 Diesel)
- Fuel & Engine
- Diesel · 1.6L
- Reliability Guide
- Common Faults
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KM14 BYO Key Findings
- 3 MOT tests recorded
- Latest MOT passed on 31/10/2025
- 103,955 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.
KM14 BYO MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
3 MOT tests are recorded for this 2014 Seat Leon (KM14 BYO) between September 2023 and October 2025.
The record contains 3 passes and 0 failures.
No failures or advisories appear anywhere in the recorded tests, so the documented MOT record is relatively clean.
KM14 BYO Mileage History
- 21/09/202378,522 mi
- 08/10/202490,905 mi+12,383 mi
- 31/10/2025103,955 mi+13,050 mi
Average of roughly 12,046 miles per year across 3 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
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Known faults for SEAT SEAT Leon Mk3 (5F)
Our database tracks 4 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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SEAT LEON 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.
- LED Headlight FailureModerate
Individual LEDs or the control board fail. The units are sealed and must be replaced entirely.
- Water Pump / Thermostat LeakModerate
Plastic housing cracks or the seal fails, leading to coolant loss.
- Silica Bag Failure (Coolant System)Serious
A silica bag in the coolant expansion tank can split, clogging the heater matrix and radiator.
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