2017 Mercedes-Benz GLS 5.5L Petrol · LF17 AAU

A recent history of structural wheel failure and significant tyre wear indicates a period of mechanical instability that contrasts with the vehicle's previously clean records. While the Mercedes-Benz GLS passed its most recent MOT on 26 March 2026, this followed a dangerous failure on 10 March 2026 due to a fractured nearside rear road wheel. The subsequent pass was accompanied by a series of advisories regarding all four inner tyres being worn close to the legal limit or worn on the edges, suggesting that while the vehicle is currently roadworthy, it has recently required significant consumable replacement to meet safety standards. The vehicle's usage profile is consistent with typical long-distance driving, having covered 63,304 miles over approximately nine years. This averages to roughly 7,034 miles per year, which is a moderate accumulation rate for a premium SUV of this age. This steady mileage suggests the drivetrain and suspension components have not been subjected to the extreme stresses of high-intensity commercial use, nor the potential degradation associated with long periods of inactivity. However, the recent concentration of tyre-related advisories and the fractured wheel suggests that recent usage may have involved significant impact or uneven load distribution. Prospective buyers should pay close attention to the wheel and tyre condition during a physical inspection and test drive. The recent fracture of a road wheel is a serious concern that warrants a close examination of the other three wheels for any hairline cracks or structural deformations, particularly on the inner rims. On the test drive, listen for any rhythmic thumping or vibrations through the steering wheel or seat, which could indicate a wheel that is out of balance or structurally compromised. Given the advisories regarding inner tyre wear on all four corners, it is essential to check for any signs of uneven tread wear, which can be a symptom of misaligned geometry or worn suspension bushes. The pattern of inner tyre wear specifically points towards potential issues with the suspension alignment or the condition of the control arms and bushes. During the test drive, monitor the vehicle for any pulling to one side or a wandering sensation on straight roads, which would indicate a need for a professional four-wheel alignment. Additionally, pay attention to any knocking or clunking noises when traversing uneven surfaces or bumps, as these are common indicators of worn suspension linkages or dampers that may have contributed to the uneven tyre degradation noted in the March 2026 inspection.