2020 Mercedes-Benz GLC 300 AMG Line DE 4MATIC A 1.9L Electric diesel · WX70 UWM

The vehicle’s most recent MOT on 2025-09-02—just ten months ago—shows an unusual but technically clean pass, despite the duplicate entry suggesting a possible administrative error rather than a genuine mechanical issue. No defects were recorded across any of the four tests, indicating the tester did not identify any major failures in brakes, suspension, emissions, or structural integrity during those inspections. However, the lack of advisories or minor faults in the latest test is notable, as it suggests either meticulous maintenance or a vehicle that has not yet developed significant wear. The absence of recurring faults—such as repeated brake binding or suspension bush wear—implies no obvious pattern of neglect, though this does not preclude hidden issues. The mileage progression reveals a steady but moderate usage pattern, averaging around 11,570 miles annually, which is typical for a vehicle of this age. The gap between the 2023 and 2024 tests (16,947 miles in 12 months) and the subsequent 2024–2025 interval (12,854 miles) suggests no extreme acceleration in wear, though the final 12,854 miles before the 2025 test were covered in just under a year. This rate is consistent with reasonable driving habits, though it does not rule out deferred maintenance if the vehicle was not serviced regularly. The recorded mileage at the 2025 test (69,422) aligns with the expected wear for a six-year-old AMG-line vehicle, though some high-mileage components—such as turbochargers, transmission fluid, and high-stress suspension parts—may now require closer scrutiny. Given the clean MOT history, a prospective buyer should prioritise an independent inspection of high-wear components that are not routinely checked in a basic MOT. The absence of advisories does not guarantee the absence of degraded suspension bushes, coil springs, or binding calipers, particularly in an AMG-line model where performance tuning may have increased stress on these parts. Brake discs and pads, while not failed in the MOT, should be examined for uneven wear or corrosion, especially if the vehicle was driven in wet or heavy urban conditions. Additionally, the exhaust system—critical for emissions compliance—should be inspected for leaks or rust, as catalytic converter failure is a common late-stage issue in these models. Finally, the turbocharger and intercooler, given the vehicle’s forced-induction nature, warrant inspection for oil leaks or efficiency loss, as these are not tested during an MOT but can lead to catastrophic failure if neglected.