2018 Bentley Mulsanne 6.8L Petrol · K1 KNS
2018 Bentley Mulsanne (6.8L, petrol). First registered 22 Nov 2018. Recorded mileage 89,647 miles. MOT expired on 31 Aug 2026.
- Make & Model
- BENTLEY MULSANNE
- Year / Origin
- 2018 · Borehamwood
- Safety Recall
- Unknown
- MOT Status
- Expired on 31 Aug 2026
- Road Tax
- —
- Recorded Mileage
- 89,647 mi
- ULEZ Compliance
- ULEZ Compliant (Euro 4+)
- Fuel & Engine
- Petrol · 6.8L
- Reliability Guide
- Common Faults
K1 KNS Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 01/09/2025
- 89,647 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.
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.
Verify lender finance agreements, insurance write-offs, police stolen registers, and mileage rollback.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
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Generate an instant valuation benchmark based on live market listings, vehicle mileage, and recent dealer auction figures.
Known faults for Bentley Bentley Mulsanne
Our database tracks 3 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
K1 KNS Mileage History
- 07/10/202111,629 mi
- 06/10/202233,064 mi+21,435 mi
- 21/09/202351,585 mi+18,521 mi
- 24/09/202474,496 mi+22,911 mi
- 01/09/202589,647 mi+15,151 mi
Average of roughly 19,995 miles per year across 5 recorded odometer readings.
K1 KNS 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 2018 Bentley Mulsanne (K1 KNS) between October 2021 and September 2025.
The record contains 5 passes and 0 failures.
No failures or advisories appear anywhere in the recorded tests, so the documented MOT record is relatively clean.
Common Problems: BENTLEY MULSANNE
Known issues reported by owners and MOT testers.
- Coolant Expansion Tank Leaks(Moderate)
The plastic expansion tanks can crack or the seals can fail, leading to slow coolant loss.
- 6.75L V8 Turbo Oil Feed Line Leaks(Serious)
The legendary 6.75-litre V8 uses turbo oil feed lines that can develop leaks as they age, leading to oil consumption, potential turbo damage, and in severe cases engine bay fires if oil contacts hot exhaust components.
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BENTLEY MULSANNE 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 2018 model year cars.
- Coolant Expansion Tank LeaksModerate
The plastic expansion tanks can crack or the seals can fail, leading to slow coolant loss.
- 6.75L V8 Turbo Oil Feed Line LeaksSerious
The legendary 6.75-litre V8 uses turbo oil feed lines that can develop leaks as they age, leading to oil consumption, potential turbo damage, and in severe cases engine bay fires if oil contacts hot exhaust components.
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