2012 Mercedes-Benz E 2.1L Diesel · CF12 FSA

The most recent MOT test results for this 2012 Mercedes-Benz E indicate it passed without recorded defects as of 2025-11-28, marking a return to a stable maintenance status after a significant failure in 2024-08-07. The vehicle’s MOT history reveals a pattern of intermittent issues, with the 2024 failure being the most severe, involving both front suspension arm ball joints showing excessive wear beyond the permissible limits. While the subsequent MOTs have been clean, the presence of a past major failure suggests underlying wear progression in the suspension system, particularly the ball joints, which are critical components for steering precision and load transfer. This history indicates that while the vehicle has been maintained to meet roadworthiness standards, the suspension’s condition may require closer attention to prevent further deterioration or potential safety risks. The recorded mileage of 97,029 miles for a vehicle aged approximately 14 years represents a moderate annual usage rate of around 6,931 miles per year, which is within the expected range for a car of this age and class. However, the gap between the 2024 failure and the latest MOT—approximately 18 months—could imply either a period of reduced use or potential underreporting of mileage, which may have allowed wear to accumulate more rapidly in certain components. The suspension ball joints, in particular, are highly sensitive to both mileage and dynamic loading, meaning that any prolonged periods of low or no use could exacerbate wear, especially if the vehicle was left standing in a position that stresses the joints unevenly. The drivetrain, brakes, and exhaust systems may also exhibit signs of wear that could be more pronounced with higher annual mileage, though the clean MOT results suggest these areas have not yet reached critical failure points. Given the history of suspension ball joint failures, the prospective buyer should conduct a thorough inspection of the front suspension system, focusing on the ball joints, bushings, and associated arms. Visually check for signs of excessive play or binding when the vehicle is lifted and the wheels are turned, and listen for unusual noises such as clunking or rattling, particularly when driving over bumps or at low speeds. The ball joints should be free from corrosion, and any signs of oil leakage around the joints or from the suspension mounts could indicate impending failure. During a test drive, note any steering vibration, uneven tyre wear patterns, or reduced handling responsiveness, which may signal suspension misalignment or component failure. Immediate attention should be given to replacing the worn ball joints, ideally before they cause further damage to the suspension geometry or steering linkage. For the broader vehicle inspection, the buyer should also address the broader implications of the vehicle’s age and the recorded mileage. Given the 14-year age and 97,029 miles, the tyres should be thoroughly checked for sidewall perishing, cracks, or tread depth below the legal minimum, as older tyres are more susceptible to structural degradation from prolonged exposure to the elements. The 12-volt battery should be tested for charge capacity and corrosion on terminals, as standing vehicles are prone to battery drain and corrosion buildup. The brake system should be inspected for signs of corrosion on discs and linings, particularly if the vehicle has been stationary for extended periods, and the brake fluid should be checked for contamination or moisture, which can compromise braking performance. Additionally, the engine oil and coolant should be replaced according to the manufacturer’s service schedule, as fluid degradation over time can lead to increased wear and reduced efficiency. Finally, the exhaust emissions system should be reviewed for leaks or discolouration, which could indicate catalytic converter failure or other emissions-related issues, though the clean MOT results suggest this area is currently compliant.