2016 Mercedes-Benz GLC 2.1L Diesel · OY66 OHD

The most recent MOT test for the 2016 Mercedes-Benz GLC on 2025-09-15 resulted in a passing grade, with a single advisory noted regarding the nearside front inner drive shaft joint exhibiting moderate wear but not exceeding the legal threshold for excessive joint play or misalignment. This advisory, however, represents a recurring concern from the 2024 MOT, indicating a pattern of wear that has persisted over the past two years. While the vehicle has passed all subsequent MOTs without further defects, the presence of this advisory suggests ongoing attention is required to this component, which could develop into a major issue if left unaddressed. The absence of failures in the intervening years does not negate the need for proactive maintenance, as drive shaft joints are critical for torque transmission and can fail catastrophically if the joint seal or bearing wear progresses to the point of internal damage or excessive play. The vehicle’s recorded mileage of 71,959 miles at the time of this assessment represents a moderate annual usage rate of approximately 7,196 miles per year, which is within the expected range for a ten-year-old car. This pace suggests a steady but not excessively high level of use, though the 2022 MOT failure—due to a nearside rear tyre cut reaching the ply—indicates there may have been periods of either heavy or irregular driving that accelerated wear on the tyres. The gap between the 2022 failure and the 2023 MOT, spanning nearly two years, could imply the vehicle was either stored or driven significantly less during that time, potentially leading to other secondary issues such as standing corrosion or fluid degradation. However, the absence of further tyre-related failures since then suggests the wear was contained to that specific tyre, though the buyer should remain vigilant for signs of uneven tyre wear or potential tyre-related issues on other tyres. Given the advisory on the nearside front inner drive shaft joint, the prospective buyer should conduct a thorough inspection of the drive shaft assembly, focusing on the joint’s condition, seal integrity, and any signs of excessive play or vibration. During a test drive, listen for unusual noises such as whining, clunking, or grinding from the front axle area, which could indicate internal joint failure or misalignment. Visually inspect the joint for oil leaks or signs of wear around the boot, and check for uneven wear on the drive shaft itself. The buyer should also schedule a professional inspection of the joint within the next 5,000 to 10,000 miles or by the next major service, depending on the joint’s current condition. Beyond this, the buyer should ensure the vehicle’s suspension and steering components are in good condition, as drive shaft issues can exacerbate alignment or steering play. For the broader mechanical and safety checks, the buyer should verify the condition of the rear tyre, as the 2022 failure highlights the importance of regular tyre inspection. Check for uneven wear patterns, cracks, or signs of excessive dry rot, particularly on the rear tyres, which may have been affected by the previous failure. The tyre depth should be within legal limits, and any remaining tyres should be monitored closely for signs of wear or damage. Additionally, given the vehicle’s age and the potential for standing, inspect the undercarriage for signs of rust or corrosion, particularly around wheel arches, exhaust systems, and underbody components. The brake system should also be examined, with a focus on disc warping, caliper binding, or signs of brake fluid contamination, which can occur over time. Finally, the buyer should confirm the service history, ensuring that fluid changes—particularly brake fluid, coolant, and transmission fluid—have been performed according to manufacturer recommendations, as these fluids degrade over time regardless of mileage. For a ten-year-old vehicle with moderate mileage, a comprehensive service checklist should include a full brake inspection, suspension component checks, and a review of the exhaust system for leaks or emissions compliance.