2018 Bentley Mulsanne 6.8L Petrol · KHU 114R
2018 Bentley Mulsanne (6.8L, petrol). First registered 08 Sept 2018. Recorded mileage 15,921 miles. MOT valid until 05 May 2027. Taxed until 01 May 2027.
- Make & Model
- BENTLEY MULSANNE
- Year / Origin
- 2018 · Borehamwood (Luton)
- Safety Recall
- Unknown
- MOT Status
- Valid until 05 May 2027
- Road Tax
- Taxed (01 May 2027)
- Recorded Mileage
- 15,921 mi
- ULEZ Compliance
- ULEZ Compliant (Euro 4+)
- Fuel & Engine
- Petrol · 6.8L
- 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.
KHU 114R Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 07/05/2026
- 15,921 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.
KHU 114R 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 (KHU 114R) between July 2022 and May 2026.
The record contains 5 passes and 0 failures.
The record shows no MOT failures, although 1 advisory notice notes an item to monitor.
Across all tests, the most frequently flagged areas are: Lighting (1 issue). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 1 advisory notice is 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.
KHU 114R Mileage History
- 27/07/20221,682 mi
- 04/08/20237,320 mi+5,638 mi
- 25/07/202411,173 mi+3,853 mi
- 10/07/202514,230 mi+3,057 mi
- 07/05/202615,921 mi+1,691 mi
Average of roughly 3,769 miles per year across 5 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
Estimate current market value
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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.
MOT Roadworthiness: Excellent
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.
Buyer's Guide & Inspection Advisory
Expert automotive synthesis from historical MOT defect records and market benchmarks.
Our Verdict
This 2018 Bentley Mulsanne (KHU114R) is a strong buy for those seeking an ultra-luxury saloon with exceptionally low mileage. Its MOT history shows five consecutive passes with only a minor power steering seepage noted in 2025, which is a reassuring sign of careful ownership.
Given the clean MOT record, focus your negotiation on the documented 2025 power steering seepage advisory (2.1.5 (a)) — ask for evidence it was monitored or rectified, as even slight seepage on a Bentley can become costly if ignored. Request the full main-dealer service history, as these cars require specialist intervals and documentation to retain value. Confirm the grey paintwork and interior condition match the low mileage, and consider an independent pre-purchase inspection by a Bentley-trained technician given the vehicle's complexity.
As a 6,752cc petrol engine, the Mulsanne will incur the highest VED band (over £600 annually for a 2018 car) and very poor fuel economy, likely under 20 mpg in real-world use. Insurance groups for this model are among the highest available, and routine maintenance or tyres must be sourced through specialists, making annual servicing easily four-figure. Estimated annual running cost including fuel, tax, insurance and maintenance is likely £6,000-£9,000 given the limited mileage and luxury status.
The 2025 MOT noted slight seepage from a power steering component (2.1.5 (a)) at 14,230 miles — inspect the steering rack and associated lines for fresh leaks or corrosion, and verify fluid levels. With only 15,921 miles recorded, check that the odometer is consistent with wear on seats, pedals and tyres, as ultra-low use can hide aged rubber or flat-spotted tyres from long storage. As no aggregate reliability data exists for the Mulsanne, a full diagnostic scan and visual underbody check by a marque specialist is advised to catch any latent issues not surfaced by MOT tests.
The vehicle has covered just 15,921 miles in nearly eight years, well below typical use for a 2018-registered car, and has passed every MOT since first registered. The only advisory across all tests was slight power steering component seepage recorded at the 2025 MOT with 14,230 miles on the clock. As a 6.75-litre petrol V8 flagship grey saloon, it represents a low-risk used luxury purchase, though no aggregate model reliability data is available to benchmark against peers.
No aggregate MOT reliability data is available for the Bentley Mulsanne, so assessment is limited to this vehicle's individual history of five passes and one minor advisory.
Reviewed by the IsItAGoodCar editorial team — Verified automotive analysis synthesized from official vehicle registries.
Data Sources
DVSA
Official MOT test logs & failure reasons
DVLA
Tax, registration & powertrain specs
Experian
Finance, stolen markers & total loss
AI Analysis
Historical fault & advisory patterns
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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