2016 Mercedes-Benz GLC 2.1L Diesel · EO66 LXG

A recurring weakness in the front drive‑shaft constant‑velocity (CV) joint and a series of tyre‑related advisories dominate the MOT history, indicating that these areas merit close scrutiny. The latest test on 7 October 2025 passed but recorded an off‑side front suspension arm ball‑joint with slight play and cuts on both front tyres, while the earlier failure on 2 October 2025 highlighted a split CV boot on the near‑side front outer drive‑shaft and a non‑functional tyre‑pressure monitoring system. The pattern shows a transition from a major CV‑boot failure in 2025 to a minor deterioration noted in 2024, suggesting the issue has not been fully resolved and may re‑appear if the boot is not replaced or the joint inspected. At 126 711 miles for a 2016 model, the vehicle averages roughly 12 700 miles per year, which is considerably above the typical usage rate for a luxury SUV of this age. The mileage progression appears steady with no large gaps between annual tests, implying consistent road use rather than prolonged storage. Such a high annual accumulation accelerates wear on consumables such as tyres, suspension bushings, brake pads and discs, and the CV joint, and it also increases the likelihood of coolant system stress, especially given the recorded low‑coolant advisory in 2025. Prospective buyers should give the front CV joint and its boot immediate attention. On a road‑test, listen for a rhythmic clicking or whirring from the near‑side front wheel when accelerating through a gear change or when the vehicle is driven over bumps; any grease leakage around the boot or a noticeable vibration at higher speeds would corroborate wear. The slight play in the off‑side front suspension arm ball‑joint should be felt as a vague looseness in the steering feel, particularly when applying torque at low speeds or when the vehicle is lifted and the wheel is rocked. Inspect the tyre sidewalls for the reported cuts and verify that the tyre‑pressure monitoring system is operational, as a malfunction can mask under‑inflation and accelerate tyre wear. The coolant‑low advisory suggests a possible leak or insufficient system maintenance; a visual inspection of the radiator, hoses, and the coolant reservoir for signs of seepage, as well as a pressure test, would be prudent. Although no brake defects were recorded, the high mileage and the presence of tyre cuts warrant a thorough check of the brake discs and pads for uneven wear, and a feel for any pulsation in the pedal under hard braking. Finally, given the vehicle’s age and mileage, a comprehensive inspection of the suspension bushes, shock absorbers and any rust‑prone sub‑frame areas will help confirm that the car remains structurally sound and road‑worthy.