2015 Mercedes-Benz CLS 2.1L Diesel · OO07 DAX

The most recent MOT test conducted in October 2025 resulted in a pass with no recorded defects. Assessing the overall maintenance trend, the vehicle shows a stable and improving profile. Although there were historical advisories concerning brake pipe corrosion in 2023 and tyre perishing in 2021, the absence of defects in the two most recent inspections suggests that these issues were either rectified or have not progressed to a level requiring formal intervention. The single failure in 2022 regarding the tyre pressure monitoring system appears to have been an isolated electronic or sensor-based fault that has since been resolved. With 47,292 miles recorded over an eleven-year period, the vehicle has averaged approximately 4,300 miles per year. This is exceptionally low mileage for a Mercedes-Benz CLS of this age, indicating light usage or long periods of inactivity. While this low mileage implies reduced wear on the internal combustion engine, transmission, and major drivetrain components, it necessitates a different inspection focus. Low-use vehicles are often subject to age-related degradation of consumables and fluids that is not directly correlated to distance travelled, meaning the mechanical integrity must be assessed through the lens of time rather than just odometer readings. Prospective buyers should pay close attention to the 2023 advisory regarding corrosion to the front and rear brake pipes. Despite the clean 2025 result, it is essential to inspect the underside of the vehicle for any signs of weeping, fluid leaks, or advanced oxidation on the hydraulic lines. During a test drive, pay careful attention to the brake pedal feel; any sponginess or a lack of firmness could indicate that the corrosion has progressed or that the brake fluid has absorbed moisture. Furthermore, the 2021 advisories regarding tyre perishing suggest that the rubber components on this vehicle are sensitive to age. Inspect all tyre sidewalls for fine cracking or perishing, and check the suspension bushes and engine mounts for signs of hardening or splitting, which can cause clunks or vibrations during low-speed manoeuvres. Given the low annual mileage, particular attention should be paid to the health of the 12V battery and the condition of all fluids. Infrequent driving can lead to battery sulphation or insufficient charging, so verifying the battery's age and charge stability is advised. You should also confirm that the service history includes calendar-based maintenance, specifically brake fluid replacements and coolant refreshes, as these are vital for preventing internal corrosion and maintaining cooling efficiency. Finally, check for any signs of brake disc corrosion or binding calipers, which are common symptoms of a vehicle that has spent significant time standing, potentially leading to uneven braking or a pulling sensation during transit.