2017 Chrysler Unknown 6.4L Petrol · AU66 AEC

The latest MOT test conducted in June 2026 resulted in a pass, but the overall maintenance trend regarding the braking system is worsening. There is a clear and progressive pattern of deterioration concerning the brake discs, which evolved from a single front disc advisory in 2024 to the rear discs in 2025, and now affects all discs across the vehicle in the most recent inspection. This indicates that the braking surfaces are steadily degrading and have not been replaced, suggesting a reactive rather than proactive approach to mechanical upkeep. The vehicle has covered 31,687 miles over approximately nine years, averaging roughly 3,521 miles per year. This is significantly lower than typical UK usage and suggests the car has spent extended periods stationary. While low mileage generally results in less mechanical wear on the engine and drivetrain, it frequently introduces risks associated with standing, such as the degradation of rubber components and the accumulation of surface corrosion on brake discs, which is explicitly evidenced in the MOT history. The recurring advisories for pitted and scored brake discs, combined with a previous failure for brake imbalance, indicate that the braking system is a primary area of concern. During a test drive, the buyer should be alert for any grinding noises or a pulsing sensation through the brake pedal, which would suggest warped or heavily scored discs. The fact that pitting is occurring specifically on the inside faces of the discs is a classic symptom of low usage, where moisture and road salt settle and corrode the metal because the heat generated from frequent braking is insufficient to keep the surfaces clean and dry. Beyond the brakes, the low annual mileage necessitates a thorough physical inspection of time-sensitive consumables. The buyer must examine the tyre sidewalls for fine cracking or perishing, as rubber degrades with age regardless of the remaining tread depth. It is critical to verify the service history to ensure that engine oil and other fluids have been changed based on calendar intervals rather than mileage alone, as stagnant oil can lead to internal sludge buildup. Finally, the 12V battery health should be tested and the suspension bushes and coil springs inspected for dryness or cracking resulting from prolonged inactivity.