2016 SEAT Leon 1.6L Diesel · AF66 RFY

The most recent MOT test on 2025-09-17 resulted in a passing outcome, though it revealed several persistent advisories that indicate a pattern of recurring issues rather than a sudden deterioration. This follows a previous MOT failure in 2025-09-16, where major defects—including an Engine Management Light (EML) indicating a malfunction and misaligned headlamps—were recorded alongside the same advisories of frayed seat belt webbing and misted rear shock absorbers. The fact that the vehicle passed in June 2024 without any recorded defects suggests that while the current advisories are concerning, they may not yet represent an imminent failure, though consistent monitoring is essential. The presence of both major and advisory failures in the last two tests underscores the need for proactive maintenance, particularly on the drivetrain and suspension systems, which are critical for long-term reliability. The vehicle’s recorded mileage of 83,573 miles at this point reflects a moderate annual usage rate of approximately 8,357 miles per year, which is typical for a ten-year-old car. Such mileage accumulation over a decade does not necessarily indicate excessive wear, but it does mean that components such as the suspension, brakes, and drivetrain have experienced consistent use. The absence of significant mileage gaps suggests the car has been in regular service, which could contribute to wear patterns like uneven tyre wear or accelerated fluid degradation. However, if the vehicle has spent extended periods stationary—common in lower-mileage scenarios—this could lead to issues like standing corrosion on brake discs, caliper binding, or fluid stagnation in seals and hoses, all of which require careful inspection. Given the recurring advisories—particularly the misted rear shock absorbers and frayed seat belt webbing—buyers should prioritise a thorough inspection of the suspension system. Light misting in shock absorbers can indicate internal seal failure, leading to oil loss and reduced damping efficiency, which may worsen with further use. Listen for clunking or harshness in the rear suspension during cornering or over bumps, and check for uneven tyre wear, which could signal misaligned shocks or worn control arms. The frayed seat belt webbing is a safety advisory that should be addressed promptly, as fraying compromises restraint effectiveness. Additionally, the previous MOT failure highlighted an Engine Management Light, suggesting a potential electrical or sensor issue that may require diagnostic testing to prevent further complications. For the buyer, a comprehensive pre-purchase inspection should also focus on the drivetrain and fluid condition. Given the vehicle’s age and mileage, check the 12V battery for signs of weakness or corrosion, particularly around terminals, as standing or infrequent use can accelerate battery degradation. Inspect the brake system for corrosion on discs and linings, and ensure calipers are not binding, which can occur if the vehicle has been stationary for prolonged periods. Fluid levels—particularly brake fluid, coolant, and transmission fluid—should be checked for degradation or contamination, as fluids can break down over time, even with moderate usage. Finally, examine the tyres for sidewall perishing or cracking, which can be a silent but critical indicator of age-related structural integrity, especially if the vehicle has not been driven frequently. If the vehicle has a service history, verify that scheduled maintenance—such as oil changes, filter replacements, and suspension servicing—has been documented, as this will provide a clearer picture of its maintenance record.