2015 Mercedes-Benz CLS 2.1L Diesel · T13 BBR

The 2015 Mercedes-Benz CLS presents a stable and reassuring maintenance trend, culminating in a clean pass on 24 September 2025 at 108,442 miles with zero defects recorded. The preceding failure on 12 September 2025 at 108,399 miles also carried no recorded defects, suggesting the initial test may have been abandoned or a procedural retest was required rather than a mechanical failure. Looking further back, the vehicle passed cleanly on 9 September 2024 at 100,361 miles and again on 8 September 2023 at 86,243 miles, with a same-day retest that also showed no defects. This pattern indicates consistent roadworthiness across multiple test cycles, with no recurring advisories or failures pointing to unresolved mechanical or structural deterioration. The mileage accumulation is broadly typical for an eleven-year-old vehicle, averaging roughly 9,858 miles per year. The most notable jump occurred between 8 September 2023 at 86,243 miles and 9 September 2024 at 100,361 miles, representing approximately 14,118 miles in a single year, a step up from the earlier pace. The subsequent year saw only 81 miles added between the September 2024 and September 2025 tests, which is unusually low and may indicate the vehicle has been largely stationary or used very sparingly over the past twelve months. That prolonged inactivity warrants closer scrutiny during any physical inspection. Despite the clean MOT record, a buyer should inspect the underside for surface corrosion on suspension mounting points, subframes, and brake lines, as these components can deteriorate during periods of low use. The braking system, including calipers, discs, and pads, deserves attention given the risk of seizure or uneven wear from standing. Tyre sidewalls should be checked for perishing or flat-spotting, and the exhaust system examined for moisture-related corrosion in the silencer and joints. The near-zero mileage in the most recent year also raises the question of whether the engine and transmission have been regularly exercised, so a test drive should focus on smooth gear changes, clutch operation, and any unusual drivetrain vibrations.