1991 Bentley Turbo 6.8L Petrol · J871 RMO
1991 Bentley Turbo (6.8L, petrol). First registered 18 Oct 1991. Recorded mileage 156,017 miles. MOT valid until 13 May 2027.
- Make & Model
- BENTLEY TURBO
- Year / Origin
- 1991
- Safety Recall
- Unknown
- MOT Status
- Valid until 13 May 2027
- Road Tax
- —
- Recorded Mileage
- 156,017 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 6.8L
- Reliability Guide
- Common Faults
AI-generated interpretation of this vehicle’s MOT record — not an official statement and not a substitute for an independent inspection.
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J871 RMO Key Findings
- 4 MOT tests recorded
- Latest MOT passed on 15/05/2026
- 156,017 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.
J871 RMO MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
4 MOT tests are recorded for this 1991 Bentley Turbo (J871 RMO) between August 2022 and May 2026.
The record contains 4 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: Windscreen (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.
J871 RMO Mileage History
- 10/08/2022152,484 mi
- 26/09/2023153,254 mi+770 mi
- 26/09/2024154,242 mi+988 mi
- 15/05/2026156,017 mi+1,775 mi
Average of roughly 939 miles per year across 4 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
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Known faults for Bentley Bentley Turbo R
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.
Verify lender finance agreements, insurance write-offs, police stolen registers, and mileage rollback.
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BENTLEY TURBO 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 1991 model year cars.
- High-Pressure Hydraulic Brake Accumulator and Mineral Oil System FailureSerious
The Turbo R utilises a Citroën-licensed high-pressure dual-circuit hydraulic braking and self-levelling suspension system powered by two engine-driven mechanical pumps. Over time, the nitrogen-filled spherical brake accumulators lose their charge, internal seals in the brake distribution valves degrade, and corrosive mineral fluid (or incorrect DOT fluid mistakenly added) ruins the internal rubber seals. This causes rapid pedal stiffening, delayed braking assistance, and pump cavitation.
- Exhaust Manifold Cracking and Gasket Blow-ByModerate
The cast iron exhaust manifolds and heat-cycling gaskets on the turbocharged 6.75-litre V8 undergo intense thermal expansion and contraction cycles. The massive heat retained in the SZ engine bay causes the cast iron manifolds to warp or develop hairline fissures, while the copper-clad composite manifold gaskets burn through, creating sharp ticking exhaust leaks on cold startup that can damage cylinder head studs.
- Active Ride Damper and Gas Spring Sphere DeteriorationSerious
Post-1990 Turbo R models feature an electronically modulated Active Ride damping system with hydraulic gas spring accumulator spheres. Over 8–10 years, the nitrogen gas permeating the internal rubber diaphragms leaks into the hydraulic fluid, eliminating pneumatic damping cushion. This forces the hydraulic fluid directly against solid strut stops, causing severe ride harshness, damper seal blowouts, and fractured rear subframe mountings.
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