2008 Volvo S40 1.8L Petrol · ST08 HCG

The 2008 Volvo S40 currently holds a valid MOT following a successful retest on 12 November 2025 at 93,426 miles. The underlying maintenance trend, however, is steadily worsening. While the vehicle passed its 2024 test without a single defect, the 2025 examination uncovered a missing anti-lock braking system (ABS) wheel speed sensor, a failing windscreen wiper, a perishing front tyre, and sub-frame corrosion. The owner rectified the immediate safety failures to secure the pass, but the introduction of structural corrosion and ABS faults signals a decline in the car's overall upkeep. At 18 years old, the recorded 93,426 miles equates to a low annual average of roughly 5,190 miles. The data shows consistent, modest accumulation: 88,942 miles in November 2023, 90,560 miles in November 2024, and 93,426 miles in November 2025. This pattern suggests the vehicle has seen lighter use, likely serving as a secondary runabout or spending significant periods stationary. Extended periods of standing can accelerate the degradation of rubber components and exacerbate surface rust, which aligns with the tyre and corrosion issues appearing in the recent records. A prospective buyer must conduct a thorough physical inspection, focusing heavily on the vehicle's structural integrity and undercarriage. The MOT history flags a progressive rust issue: the 2023 test recorded corroded front and rear suspension components, a corroded rear sub-frame, corroded brake pipes, and rear structural corrosion. By 2025, the offside sub-frame was also noted as corroded. While the testers confirmed the rigidity was not seriously weakened at the time, rust on a sub-frame and primary structure demands a professional check to rule out hidden deterioration. Beyond the chassis, the buyer should scrutinise the drivetrain and braking systems. The 2023 record highlighted a severely deteriorated offside front constant velocity (CV) boot and worn rear brake discs and pads, alongside an exhaust leak. The 2024 test flagged an exhaust emissions leak, and the 2025 test revealed a missing ABS wheel speed sensor. These recurring faults point to deferred preventative maintenance. A pre-purchase inspection should verify the condition of the CV joints, confirm all ABS sensors are functional, and ensure the exhaust system is sealed and emitting correctly.