2017 Land Rover Discovery 3.0L Diesel · V55 MAR

The most recent MOT test for this Land Rover Discovery passed on 10 February 2026, but it carries a dangerous advisory regarding excessive corrosion to the central rear fuel tank heat protection cover. When evaluating the overall maintenance trend, the vehicle shows signs of a worsening condition rather than a stable one. The history is characterised by frequent failures involving significant components, including fractured wheels, insecure exhaust systems, and corroded brake pipes. The recurrence of suspension arm ball joint issues and the escalation to a dangerous advisory for fuel tank protection suggest that the vehicle is entering a period of increased mechanical vulnerability and structural degradation. With a recorded mileage of 94,239 miles over approximately nine years, the vehicle has covered an average of roughly 10,471 miles per year. This represents typical usage for a diesel SUV of this age, suggesting the vehicle has been driven regularly rather than left stationary for long periods. While this steady usage helps prevent some forms of sitting-related decay, it also means that wear on major mechanical components such as the suspension, drivetrain, and braking system is consistent with its age. You should expect to find consumables like tyres, brake pads, and suspension bushes at a stage where they may soon require replacement. The dangerous advisory regarding the fuel tank heat protection cover is a significant point of concern that requires immediate attention. You should inspect the vehicle's underside for widespread corrosion, particularly around the fuel system and chassis mounting points, as this could indicate more extensive structural issues. The history of fractured wheels and corroded brake pipes also warrants a thorough physical inspection of the alloy wheels for cracks and the brake lines for any signs of heavy scaling or weeping. During a test drive, listen for any knocking, clunking, or creaking from the front suspension, as the repeated failures of the ball joint dust covers suggest that the suspension components are nearing the end of their serviceable life. Furthermore, pay close attention to the braking feel and the exhaust system's integrity. Given the previous major failures regarding brake pipe corrosion, check for any sponginess in the brake pedal or pulling to one side, which could indicate hydraulic issues or binding calipers. You should also check for any excessive vibration or rattling from the exhaust, as the recent failure of the exhaust clamp indicates that the system may be insecure. Finally, ensure the service history is comprehensive, specifically looking for evidence that brake fluid and coolant have been changed according to the manufacturer's time-based intervals to mitigate the risk of further corrosion and component failure.