2018 Mercedes-Benz GLC 2.1L Diesel · R99 RAT

The vehicle remains technically roadworthy, though the maintenance history indicates a trend of reactive rather than proactive servicing. The most recent test in September 2025 at 87,055 miles passed, but revealed advisories for thin rear brake pads and perishing on both front tyres. This follows a pattern from previous years where components are only addressed once they approach the legal limit during an MOT inspection, rather than being replaced during scheduled maintenance intervals. The mileage accumulation is consistent with typical annual usage for a luxury SUV, averaging approximately 11,000 miles per year. There is a clear period of activity between the August 2023 test at 60,175 miles and the August 2024 test at 76,935 miles, representing over 16,000 miles driven in thirteen months. The subsequent interval of 9,120 miles between September 2024 and September 2025 shows a return to more standard usage patterns, which generally benefits the health of engine seals and rubber components. A buyer should pay close attention to the braking system during a physical inspection. The record shows recurring brake pad wear across multiple axles since 2022, suggesting that the calipers may be sticking or that the owner ignores service intervals until failure occurs. The 2025 advisory regarding perishing front tyres indicates that the rubber is suffering from age-related degradation despite having sufficient tread depth, which necessitates immediate replacement to ensure adequate grip. Furthermore, the suspension bushings and bushings should be checked for cracking, as the heavy weight of the GLC places significant stress on these components as mileage nears the 90,000-mile mark.