2018 Mercedes-Benz GLC 2.1L Diesel · S18 CAP

The vehicle’s most recent MOT test on 2025-06-09 at 85,865 miles passed without any defects, though it follows an unusual failure just five days earlier at 85,862 miles with no recorded issues. This abrupt reversal suggests either a temporary administrative error or a last-minute correction, as no faults were logged in either test. The preceding MOT history from 2022 to 2024 shows consistent passes with no advisories or defects, indicating a stable maintenance pattern over the past four years. However, the lack of advisories in any test—even for high-mileage components like suspension bushes or brake calipers—raises suspicion, as such items typically warrant attention by this stage. The absence of any structural or emissions-related failures is reassuring, but the clean record may also imply that minor issues were overlooked or that the vehicle was serviced just outside MOT intervals. The recorded mileage of 85,865 miles over eight years averages approximately 10,733 miles annually, which aligns with typical usage patterns for this class of vehicle. There are no significant gaps in mileage between tests, and the progression is steady without abrupt jumps or prolonged periods of inactivity. For example, the 2023 to 2024 interval saw 13,918 miles in just over a year, which is slightly above average but not alarming. The lack of any advisory notes in the MOT history also suggests that routine servicing—such as fluid changes or brake inspections—may have been consistent, though this cannot be confirmed without service records. The only notable anomaly is the rapid succession of the 2025 failure and pass, which warrants further investigation into whether the vehicle was driven between tests or if the failure was procedural rather than mechanical. Given the clean MOT history, a buyer should prioritise a thorough inspection of high-wear components that often fall outside MOT scrutiny. The suspension system, particularly the rear bushes and coil springs, should be checked for excessive play or corrosion, as these are common failure points at this mileage. Brake calipers and binding mechanisms, while not flagged in the MOT, may require verification for uneven wear or seized pistons, especially if the vehicle has been driven aggressively. The exhaust system and underbody should be examined for signs of corrosion or leaks, particularly around the rear axle and subframe, as these areas are prone to deterioration in older Mercedes-Benz models. Additionally, the condition of the tyres—despite no MOT failures—should be assessed for uneven tread wear, which could indicate alignment or suspension issues. The absence of advisories in previous tests makes these areas critical for independent verification.