2005 Renault Master 2.5L Diesel · GN55 ACV

A pattern of escalating structural and mechanical concerns defines this Renault Master's roadworthiness record. The 2025-09-15 test was passed, but only ten days earlier the vehicle had failed on both front outer sills with corrosion reducing structural rigidity, alongside an inoperative nearside stop lamp and a faulty offside registration plate lamp. That failure followed the 2024-08-27 test, which recorded a rough-rotating nearside front wheel bearing and a split nearside front CV boot, plus advisories for corroded front brake pipe and corroding outer sills. A more serious 2023-03-14 failure involved a dangerously worn lower suspension ball joint at the offside front, dangerously thin front brake pads, a binding nearside rear service brake, and an inoperative hazard switch. Two tests passed without recorded defects, in 2021-11-30 and 2023-03-20, the latter immediately preceding the dangerous-defect failure. The advisory trail for the front sills has now progressed into failed structural items, signalling a vehicle whose corrosion profile is actively worsening rather than stable. With 154,440 miles recorded across roughly twenty-one years, the annual accumulation sits at approximately 7,354 miles per year, which is broadly typical for a working light commercial of this age. However, the testing pattern shows considerable irregularity: tests were recorded in late 2021, March 2023, late August 2024, and twice in September 2025, with no MOT history evident between these points in the supplied records. Gaps of this kind, particularly the stretch before 2021, can mean either extended periods off the road with possible standing-related deterioration to brake calipers, exhaust mountings, and underbody components, or simply absence of recorded testing. The mileage covered during the more frequently tested period of 2023 to 2025 is difficult to quantify from the data supplied, but the cumulative wear on suspension, braking, and drivetrain components is consistent with a vehicle that has been in active service rather than lightly used. For a prospective buyer, the priority inspection areas are the front structural sills, the front brake hydraulic circuit, and the front suspension and driveline. Both front outer sills were first flagged as corroding in 2024 and were failed as major defects in 2025, so a close visual inspection of the sill-to-floor junction and the outrigger areas is essential, ideally with the vehicle on a ramp to check for perforation behind the cosmetic panels. The offside front brake pipe was noted as corroded and grease-covered in 2024, and given the age of the vehicle, all underbody brake lines and flexi-hoses warrant careful examination for rust scaling or weeping joints. On test drive, listen for clonking or knocking from the front suspension over uneven surfaces, which would indicate worn ball joints or bushes, and feel for any pulling under braking that could suggest a binding caliper following the nearside rear binding defect recorded in 2023. The 2025 advisories for an oil leak and a steering rack fluid seepage should also be checked by inspecting the ground beneath the vehicle after standing and by turning the lock to lock to feel for any notchiness or whining from the rack. The rear braking system and drivetrain seals complete the priority list. A significantly worn both-rear brake disc was failed in 2021, and rear caliper sliders and handbrake mechanism operation should be verified, as binding rears were a recorded failure mode. The split offside front CV boot from 2024, if not replaced with a documented gaiter and fresh grease, will have allowed contamination into the joint and accelerated wear, so listen for clicking or vibration on full-lock turns. The stop lamp and registration plate lamp failures of 2025 are simple electrical items but should be confirmed as remedied, and the deteriorated rear number plate should be checked for legibility. Given the structural sill failures, the recurring suspension and brake defects, and the visible fluid leaks, this vehicle requires a thorough pre-purchase inspection by a competent commercial-vehicle technician, with particular attention to whether the corroded sills have been properly repaired rather than merely coated, before any commitment is made.