2009 Mercedes-Benz E 3.0L Diesel · LM59 BDF

The most recent DVSA MOT test on 2026-03-19 resulted in a passing outcome with a single advisory—emissions-related (eml on)—which indicates the vehicle’s engine management system is operating within permissible limits but may require attention to optimise fuel efficiency and emissions compliance. This advisory, while not failing the test, suggests a potential area for future servicing, particularly if the vehicle is driven regularly. Reviewing the full MOT history reveals a stable maintenance trend over the past seven years, with no recurring failures or persistent defects beyond the tyre advisories recorded in 2019 and 2020. The absence of repeated issues in the intervening years points to either effective corrective action or inherent vehicle resilience, though the tyre-related advisories warrant closer inspection to mitigate long-term wear risks. The recorded mileage of 33,831 miles for a vehicle aged approximately 17 years represents a notably low annual usage rate of around 1,990 miles per year. Such low mileage is unusual for a car of this age, especially when considering potential periods of prolonged stationary use, which can accelerate wear in certain components. While lower mileage generally reduces mechanical stress on consumables like tyres, brakes, and suspension, it also raises concerns about standing corrosion—particularly on brake discs, calipers, and suspension linkages—which can lead to binding, reduced braking efficiency, or premature failure if not addressed. Additionally, fluids such as brake fluid, coolant, and transmission oil degrade over time due to evaporation, oxidation, or contamination, even when the vehicle is not in use, necessitating periodic replacement regardless of mileage. Given the clean MOT history apart from the tyre advisories, the buyer should conduct a thorough inspection focusing on structural integrity and fluid condition. Begin with the tyres, particularly the rear offside and near-side, which have shown signs of cracking or perishing. Visually inspect the sidewall for any signs of dry rot or delamination, and check for uneven wear patterns that could indicate misalignment or suspension issues. During a test drive, listen for unusual noises from the rear wheels, such as clunking or grinding, which may signal loose or worn suspension components. Next, examine the brake system for signs of corrosion on discs and calipers, especially on the near-side and offside rear, where standing corrosion is more likely to occur. Check for binding or excessive play when applying the brakes, and test the pedal feel for firmness and absence of pulsation or sponginess, which could indicate warped discs or failing brake pads. For fluids, the buyer should verify the condition of the 12V battery, as prolonged disuse can lead to sulphation or internal failure. Test the battery voltage when the engine is off and the ignition is on—ideally, it should read around 12.6 volts; below 12.4 volts suggests diminished capacity. Inspect the battery terminals for corrosion, and ensure they are clean and securely fastened. The brake fluid reservoir should be checked for contamination or moisture buildup, as standing fluid can absorb water and reduce braking performance. Given the vehicle’s age and low mileage, the coolant should be replaced according to the manufacturer’s recommendation, typically every two years or 40,000 miles, to prevent corrosion and overheating risks. Finally, the engine oil should be checked for clarity and level, with a top-up or full change recommended if the vehicle has been stationary for extended periods, as oil can degrade without circulation. If the vehicle has been driven infrequently, consider a service to refresh the engine management system and ensure all sensors are functioning correctly, particularly if the eml advisory persists.