2018 Mercedes-Benz GLC 2.1L Diesel · D25 CCB

The vehicle most recently passed its MOT on 14 March 2026. While the overall record demonstrates a consistent pattern of passing, there has been a noticeable increase in failures and advisories related to rubber components over the last few years. The maintenance trend suggests the vehicle is entering a phase where age-related degradation of perishables is becoming more prominent, moving from a clean early history to one requiring more frequent corrective maintenance to maintain roadworthiness. With a recorded mileage of 38,147 miles over approximately eight years, the vehicle has averaged roughly 4,768 miles per year. This is significantly lower than the typical annual usage for this class of vehicle. While low mileage generally implies reduced mechanical wear on the engine and drivetrain, it often introduces specific risks associated with under-use, such as the degradation of rubber seals, the potential for brake caliper binding, and the accumulation of moisture within the exhaust system. The MOT history highlights a recurring issue with tyre integrity, specifically perishing and cracking on the rear axle noted in 2023 and a major cut in 2026. This is a classic symptom of low-mileage vehicles where tyres age out before the tread wears down. A prospective buyer must meticulously inspect all tyre sidewalls for fine cracking or bulging. Additionally, the 2024 failure regarding a split nearside front constant velocity boot indicates a vulnerability in the drivetrain seals. During a test drive, listen for rhythmic clicking or popping sounds during tight, low-speed manoeuvres, which would suggest that the CV joint has suffered ingress of grit and is now failing. Given the low annual usage, particular attention should be paid to the braking system and fluid health. Check the brake discs for heavy surface corrosion or uneven pitting, and ensure the pedal feel is firm without any shudder, which could indicate binding calipers from long periods of standing. The 12V battery should be tested for health, as infrequent use can lead to premature failure. Finally, verify the service history to ensure that oil and filter changes have been performed on a calendar basis rather than solely by mileage, as engine oil degrades over time regardless of the distance travelled.