2006 Citroen Relay 2.0L Diesel · BD55 DCU

Structural integrity and component wear present significant concerns for this Citroen Relay, characterized by a recent history of major failures regarding chassis corrosion and structural deformation. While the vehicle passed its most recent test on 30 April 2026, the record shows a volatile pattern of mechanical issues, including a failure in March 2026 for significant corrosion to the nearside rear inner sill backing and deformation of the offside front outrigger to the chassis. Although the structural defects were addressed to achieve the latest pass, the presence of ongoing advisories for corrosion within 30cm of the front inner arches suggests that oxidation is a persistent issue within the vehicle's load-bearing architecture. The recorded mileage of 104,497 miles is notably low for a 20-year-old commercial vehicle, averaging approximately 5,225 miles per year. This low annual accumulation can be a double-edged sword; while it implies less cumulative wear on the drivetrain and engine compared to high-mileage counterparts, it also increases the likelihood of age-related degradation. In this specific case, the low usage profile aligns with the recorded advisories for perishing tyres and the emergence of structural corrosion, which often occurs when vehicles spend extended periods stationary or are subjected to environmental moisture without the regular cleaning and airflow associated with high-frequency use. Prospective buyers should focus heavily on the chassis and braking systems during a physical inspection and test drive. Given the history of major structural failures, it is essential to inspect the sills, mounting points, and inner arches for any signs of fresh welding, uneven surfaces, or bubbling paint that might indicate recent repairs to the outrigger or sill backing. On the road, pay close attention to any unusual knocking or creaking sounds when traversing uneven surfaces, which could signal issues with the areas where structural rigidity was previously compromised. The recent history of wheel bearing play and noisy bearings also necessitates a careful check; listen for a constant humming or grinding noise that increases with vehicle speed, and feel for any vibration or pulling through the steering wheel. The braking system requires particular scrutiny due to recurring advisories regarding thin pads and imbalanced braking performance. During a test drive, the driver should monitor for any pedal judder, pulling to one side under braking, or a spongy sensation in the pedal box, which could relate to the previously noted lagging service brake or imbalanced requirements. Additionally, since the offside front wheel bearing was flagged for both excessive play and noise in recent tests, any sensation of looseness in the front end or instability during cornering should be treated as a high-priority mechanical concern.