2005 Renault Master 2.5L Diesel · NH05 ARF

Recurring electrical and lighting defects, alongside persistent warnings regarding brake disc condition, define the recent mechanical history of this Renault Master. While the vehicle successfully passed its most recent MOT on 10 November 2025, the record shows a trend of minor electrical faults, specifically involving the hazard warning switch and registration plate lamps, which have appeared across multiple consecutive tests. The transition from a period of clean passes between 2020 and 2022 to the current cycle of failures and advisories suggests an increase in the frequency of component degradation as the vehicle has aged beyond two decades. With an odometer reading of 173,999 miles accumulated over twenty-one years, the vehicle has averaged approximately 8,286 miles per annum. This usage pattern is consistent with a commercial vehicle of this age, indicating steady, long-term operation rather than extended periods of inactivity. However, such high-mileage utility often results in cumulative fatigue across the chassis and drivetrain. Prospective buyers should be aware that while the annual mileage is moderate, the mechanical components have been subjected to significant wear and tear, necessitating a closer examination of structural and braking systems that are now showing early signs of age-related decline. The persistent advisories regarding rear brake discs being worn, pitted, or scored require immediate attention during a physical inspection. On a test drive, listen for any grinding noises or uneven deceleration when braking, and check for any vibration or pulsing through the pedal, which may indicate that the discs have reached the end of their service life. Furthermore, the 2023 report of surface corrosion to the subframe and a corroded brake pipe covered in grease highlights the need for a thorough inspection of the vehicle's underside. Use a torch to examine the brake lines for any signs of weeping or structural thinning and verify the integrity of the subframe, specifically looking for scaling or deep rust that could compromise structural rigidity. Electrical reliability remains a notable area of concern given the repeated failure of the hazard warning switch and various lighting components. During your evaluation, ensure that all exterior lamps, including the registration plate lights and the central stop lamp, are fully functional and that the hazard switch operates correctly without requiring excessive pressure. Additionally, the engine earth strap was previously flagged for corrosion; check for consistent starting performance and ensure that there are no erratic electrical issues or flickering dashboard lights, as poor earthing can lead to complex and intermittent faults in the vehicle's charging and ignition systems.