2015 Mercedes-Benz GLC 2.1L Diesel · ST04 HAT

The latest MOT test on 2026-06-23 resulted in a passing outcome, though the vehicle carries several persistent advisories that indicate ongoing wear and potential long-term concerns. The maintenance history over the past four years shows a pattern of recurring issues rather than a clear improvement or stability, with advisories on steering rack inner joint play and front suspension arm ball joint play appearing consistently across multiple tests. While the vehicle has not failed an MOT, the repeated advisories suggest that the steering and suspension components are nearing or have already exceeded their serviceable limits, warranting immediate attention to prevent further deterioration. These advisories, particularly the play in the steering rack and ball joints, are critical because they can lead to reduced handling stability, increased road noise, and, if ignored, compromise steering control and vehicle safety. The recorded mileage of 79,985 miles for a vehicle aged approximately 11 years represents a moderate annual usage rate of around 7,271 miles per year, which is typical for a car of this age and class. Such mileage does not necessarily indicate excessive wear, but it does imply that the vehicle has been driven regularly rather than left stationary for extended periods. However, the consistent advisories on suspension and steering components suggest that the wear rate may be higher than average, potentially due to aggressive driving, rough road conditions, or previous neglect of routine servicing. Without evidence of significant gaps in use, the mileage alone does not justify alarm, but the recurring advisories necessitate a proactive inspection to assess the extent of component fatigue and plan corrective maintenance. Given the recurring advisories on the steering rack inner joints and front suspension arm ball joints, the prospective buyer should conduct a thorough inspection of these components during a test drive. Listen for unusual clunking or rattling noises from the front suspension, particularly when driving over bumps or at speed, as this may indicate excessive play in the ball joints or suspension arms. Visually inspect the steering rack for signs of oil leaks or damage to the inner joints, and check for uneven tyre wear, which could suggest misalignment or steering issues. The ball joints should be tested for play by applying gentle lateral pressure to the wheel while the vehicle is stationary; any noticeable movement or resistance loss is a red flag. Immediate attention to these advisories is essential, ideally within the next 3,000 to 5,000 miles, to prevent further degradation of steering precision and suspension performance. For the buyer, the next steps should include a comprehensive mechanical inspection by a qualified technician to assess the condition of the steering rack, suspension arms, and ball joints. If the advisories are confirmed, the steering rack may require replacement of the inner joints or the entire assembly, while the suspension arms and ball joints could need servicing or replacement depending on their wear state. Beyond the immediate suspension issues, the buyer should also check the rear brake pads, which were noted to be wearing thin in previous MOTs, and consider a brake system inspection to ensure adequate stopping performance. Additionally, given the vehicle’s age and usage profile, a full fluid check—including brake fluid, coolant, and transmission fluid—should be performed to ensure they are free of contamination and within recommended service intervals. Lastly, the buyer should verify the presence of any service records, particularly for suspension and steering components, to confirm past maintenance and address any gaps in servicing.