2015 Mercedes-Benz S-Class 3.0L Diesel · KY64 TKT

The 2015 Mercedes-Benz S-Class underwent its most recent Ministry of Transport test on the fourth of June, 2026, securing a clean pass with no defects or advisories recorded. Reviewing the historical testing data reveals a reassuringly stable maintenance trend, characterized by consecutive clear passes in 2025 and 2026 following minor tyre-related advisories in 2023 and 2024. The absence of structural, mechanical, or electrical failures during these inspections indicates that previous owners have generally addressed routine wear and tear promptly, allowing this high-end luxury saloon to maintain a strong baseline of mechanical health heading into the prospective purchase. With a recorded mileage of 98,747 miles at approximately eleven years of age, the vehicle has accumulated an average of nearly nine thousand miles annually. This usage rate is entirely typical for a large executive diesel or petrol cruiser, falling squarely into the normal driving bracket that suggests steady, consistent motorway or long-distance touring rather than arduous short-trip town driving. Such mileage means the engine, automatic transmission, and complex air suspension systems have been exercised regularly, which is mechanically preferable to prolonged periods of standing, though prospective buyers must still anticipate that core high-wear components are nearing natural replacement intervals. Given the repeating mentions of outer edge tyre wear recorded on the front axle during the 2023 and 2024 tests, careful physical inspection of the front rubber is paramount during your initial viewing. Check both the nearside and offside front tyres for asymmetric tread depletion, which frequently points to front-end geometry misalignment, worn suspension bushes, or aggressive cornering habits typical of heavy executive saloons. During your test drive, listen carefully for any knocking or clunking noises from the front suspension over potholes, and ensure the steering tracks dead straight without pulling to either side, as this would confirm whether the previous tracking issues have been properly rectified. Beyond the chassis geometry, the complexity of a 2015 Mercedes-Benz S-Class demands rigorous scrutiny of its auxiliary systems and time-dependent maintenance schedules. Verify the service history meticulously to confirm that engine oil changes, transmission fluid flushes, and brake fluid replacements have been carried out strictly on schedule, as neglected servicing can severely compromise the longevity of the turbocharged engine and multi-speed automatic gearbox. Finally, test every single electrical comfort feature, including the adaptive air suspension ride height adjustments, seat heating, and infotainment systems, ensuring all components operate without fault before finalizing the purchase.