1988 Bentley Mulsanne 6.8L Petrol · RJI 1053

Critical braking system failures and recurring fluid leaks define the mechanical profile of this vehicle, culminating in a dangerous failure during its most recent inspection on 17 November 2025. The recent test revealed significant safety issues, including a parking brake with less than 50 percent efficiency, incorrectly mounted front brake pads, and a leaking offside front hydraulic brake caliper. This failure follows a trend of escalating concerns, moving from minor oil and hydraulic leak advisories in 2024 to more severe, immediate safety defects in 2025. The presence of pitted or scored front brake discs alongside these hydraulic failures suggests a deteriorating braking system that requires urgent mechanical attention. The vehicle has covered 126,873 miles over its 38-year lifespan, representing a relatively low annual average of approximately 3,339 miles. While this low mileage suggests the car has not been subjected to high-frequency road use, such a pattern can often lead to the stagnation of seals and the degradation of hydraulic components. In a vehicle of this age, low annual mileage can contribute to the development of the leaks and corrosion noted in the records, as components may undergo more thermal cycling or periods of inactivity rather than consistent operational use. Prospective buyers should focus heavily on the hydraulic and braking systems, as the recent dangerous failure indicates a high risk of total system compromise. During a test drive, pay close attention to the brake pedal feel; any sponginess, excessive travel, or a soft sensation could indicate air in the lines or continued leakage from the caliper. The reported issue with the parking brake efficiency means the handbrake may not hold the vehicle on an incline, so it should be tested rigorously in a controlled environment. Additionally, the reported pitting on the front brake discs may manifest as a pulsation or judder through the pedal during deceleration. Further investigation into the underside is necessary to address the recurring advisories regarding oil and fuel pipe corrosion. The 2023 advisory for corroded fuel pipes, combined with persistent oil leaks, necessitates a thorough inspection of all fluid lines and connections to prevent future failures. Listen for any irregular knocks or clunks when traversing uneven surfaces, which could relate to the previously noted wear on the nearside front suspension arm bush. Given the history of hydraulic leaks, any visible weeping around the steering rack or suspension linkages should be treated as a significant concern.