2016 Citroen C4 1.6L Diesel · S4 WLA

The vehicle shows a worsening trend in structural and suspension degradation despite passing its most recent test on 5 March 2026. While the car achieved a pass at 51,763 miles, the tester identified a significant volume of advisory items that indicate progressive corrosion across the underbody. The presence of corroded exhaust sections, driveshafts, front sub-frame, Macpherson struts, and the rear axle suggests that the vehicle is succumbing to environmental wear. The recurring nature of these advisories across multiple years indicates that the underlying oxidation is not being addressed through restorative maintenance. The recorded mileage of 51,763 miles over approximately ten years averages to roughly 5,176 miles per year. This low annual usage suggests the vehicle has seen light duty, which often correlates with the type of corrosion seen here, as cars driven infrequently often sit in damp environments without the benefit of heat cycles to clear moisture from the underside. The mileage increments between tests show a consistent, low-level usage pattern, with the 2024 test at 44,695 miles progressing to 48,217 miles in 2025, and finally 51,763 miles in 2026. A prospective buyer must prioritize a thorough inspection of the vehicle's structural integrity. The MOT history repeatedly flags corrosion on the front sub-frame, rear axle, and Macpherson struts. Although the tester noted these were not seriously weakened in the 2026 test, the sheer number of affected components is concerning. The inability to fully inspect the sills due to fitted engine and underbody covers is a significant risk factor. A buyer should request the removal of these covers to verify that the sills and mounting points are free from perforating rust. Mechanical attention should also be directed toward the steering and braking systems. The 2026 test identified slight free play in the steering rack and pitted front brake discs. The suspension also shows signs of wear, specifically with worn front suspension arm bushes and a history of corroded coil springs. While the 2026 test resolved a previous failure regarding a rough offside rear wheel bearing, the cumulative effect of the steering play and suspension bushing wear suggests the vehicle will require upcoming component replacements to maintain handling precision.