2017 Mercedes-Benz S-Class 2.9L Diesel · VE12 AAA

The latest MOT test on 2024-07-17 reveals a stable but cautious maintenance profile for this 2017 Mercedes-Benz S-Class, with no failures recorded beyond the expected advisories. The vehicle passed all other tests in prior MOTs, including those from 2022 and 2023, indicating a consistent roadworthiness record with no recurring critical defects. The presence of advisories—particularly the front suspension arm ball joints showing slight play and rear tyre wear approaching legal limits—suggests routine wear that has been monitored rather than ignored, though the absence of failures in recent years implies that maintenance has been timely. This trend is encouraging, as persistent issues could indicate deeper mechanical fatigue or neglect, but the advisories alone do not currently compromise safety or legal compliance. The recorded mileage of 81,244 miles for a vehicle aged nine years represents a moderate annual usage rate of approximately 9,027 miles per annum, which is within the expected range for a high-performance luxury sedan under typical UK conditions. Such mileage does not necessarily indicate excessive wear if the vehicle has been maintained properly, but it does warrant closer attention to components subjected to consistent stress, particularly suspension, brakes, and drivetrain elements. The absence of significant mileage gaps or rapid accumulation suggests either steady use or periods of reduced activity, though the latter could have introduced standing-related issues like brake corrosion or fluid degradation. For a vehicle of this age and mileage, the suspension and tyre wear advisories are particularly relevant, as they reflect ongoing operational demands rather than neglect. To proceed with a thorough inspection, the prospective buyer should prioritise the suspension system, focusing on the front lower arms and ball joints, which show slight play. On a test drive, listen for unusual clunking or rattling from the front suspension during cornering or over bumps, and check for uneven tyre wear patterns—particularly on the rear tyres, where edge wear may indicate misalignment or poor camber settings. The worn brake discs should also be inspected for warping or excessive thickness reduction, as further wear could lead to reduced braking efficiency or the need for replacement. Additionally, verify the rear tyre tread depth is above the legal minimum and inspect for signs of uneven wear, which may signal alignment or suspension misalignment issues. Beyond the advisories, this vehicle’s age and mileage make it prudent to conduct a comprehensive physical inspection of several key areas. Check the tyre sidewalls for signs of cracking or perishing, which can compromise structural integrity over time, especially if the tyres have been stored for extended periods. Inspect the 12V battery and associated cables for corrosion or loose connections, as standing vehicles can accelerate battery drain or lead to electrical gremlins. The brake system should be examined for signs of corrosion on the rear discs or binding calipers, which can occur when the vehicle is stationary for prolonged periods. Furthermore, consider verifying the service history for fluid servicing, particularly the brake fluid, differential fluid, and coolant, as these fluids degrade over time regardless of mileage. Finally, a visual inspection of the exhaust system for leaks or corrosion, and the emission control components for blockages or malfunctions, is advisable, given the S-Class’s performance-oriented specifications. If the vehicle has been used primarily for short trips or light duty, calendar-based fluid checks should be prioritised, as these components may not have been subjected to the same thermal stress as higher-mileage counterparts.