2020 Mercedes-Benz X 3.0L Diesel · CM20 JCB

The vehicle artwork holds a valid MOT, but the maintenance trend shows a concerning shift toward significant mechanical neglect. While it passed the August 2025 test at 129,178 miles, the previous failure just three days prior revealed multiple critical issues. These included an excessive oil leak from the engine cooler, a faulty supplementary restraint system warning lamp, and worn anti-roll bar bushes on both sides. The presence of these faults suggests that repairs are only being addressed when necessitated by test failures rather than through proactive preventative maintenance. The mileage profile is exceptionally high for a six-year-old vehicle, averaging over 21,500 miles per annum. A rapid accumulation of mileage occurred between July 2023 at 80,950 miles and July 2025 at 129,175 miles, where the truck covered nearly 48,000 miles in two years. This heavy usage places considerable strain on the drivetrain and suspension components, which is evidenced by the recurring reports of brake binding and worn hardware degradation across the last three testing cycles. A prospective buyer must conduct a thorough inspection of the engine bay to ensure the oil cooler leak has been professionally rectified and has not caused secondary damage to surrounding components. The safety system requires immediate attention, as the SRS warning lamp has been a recurring failure point for two years. Furthermore, the history of worn brake discs and worn anti-roll bar bushes indicates that the suspension and braking assemblies are nearing the end of their functional life. Verification of the parking brake adjustment and checking for further fluid leaks are essential to ensure the vehicle is fit for high-mileage use.