2020 Mercedes-Benz GLC 300 AMG Line Prem D 4M A 1.9L Diesel · JG03 WEB

A recent mechanical failure regarding front-end suspension components marks a shift in this vehicle's otherwise relatively clean MOT history. While the most recent test on 06 July 2026 resulted in a pass with no defects, this follows a failure on 14 January 2026 where the offside front lower suspension arm ball joint was identified as excessively worn. This specific failure indicates that the track control arm required attention to maintain steering precision and structural integrity. Aside from this recent intervention, the testing trend has been stable, with no other major defects recorded since the vehicle's initial entries. The recorded mileage of 62,699 miles for a 2020 model represents a typical usage pattern, averaging approximately 10,450 miles per year. This level of annual accumulation suggests consistent road use rather than long periods of stagnation or excessive high-speed motorway mileage. Mechanically, this rate of use means that while the vehicle is unlikely to have suffered from the specific issues associated with long-term stationary periods, there will be a standard level of wear expected on consumable items such as suspension bushes, brake pads, and tyres. Prospective buyers should pay close attention to the steering and suspension response during a test drive to ensure the recent ball joint replacement has fully rectified the previous issue. Listen for any knocking, clunking, or irregular clicking sounds when navigating uneven road surfaces or turning the steering wheel at low speeds, which could indicate further wear in the track control arms or other suspension linkages. Additionally, the advisory from January 2025 regarding an offside rear tyre being worn close to the legal limit suggests that alignment or uneven tyre wear may be a factor to monitor. During the test drive, check for any unexpected pulling to one side or steering wheel vibration, which could stem from the previously noted suspension wear or incorrect wheel alignment. It is also prudent to inspect the current condition of all tyres, specifically looking for uneven wear on the inner or outer edges, to ensure that the suspension geometry remains within specification. Given the history of a worn ball joint, verifying the stability of the front end under braking and during cornering is a necessary step in confirming the vehicle's current roadworthiness.