1987 Mercedes-Benz 300 3.0L Diesel · E9 TMO

The most recent DVSA MOT test, conducted on 2022-09-15, resulted in a passing outcome, though it followed a failed test just three days prior on 2022-09-12. This pattern suggests a recurring but manageable set of advisories rather than a sudden deterioration in roadworthiness. The vehicle’s maintenance history is inconsistent, with some years showing clean passes and others revealing persistent issues—particularly in the suspension, drivetrain, and structural areas—indicating that while the car remains passable, it has not been fully addressed in the past. The advisories on the 2022 tests, such as the oil leak, corroded coil spring mounting, and worn prop shaft joint, are indicative of ongoing wear that may require timely intervention to prevent further degradation or failure. The recorded mileage of 10,229 miles over approximately 39 years translates to an annual usage rate of around 262 miles, which is exceptionally low for a vehicle of this age and model. Such low mileage often reflects periods of prolonged inactivity, particularly if the car was stored without regular movement, which can exacerbate issues like corrosion, fluid degradation, and component stiffness. The lack of significant mileage accumulation suggests that wear on consumables like brake pads, tyres, and fluids may not have progressed as rapidly as one might expect, but this does not absolve the vehicle of potential hidden damage from static conditions. The 2015-05-28 MOT failure, which included a dangerous ball joint failure and brake-related issues, underscores the importance of addressing any standing-related corrosion or stiffness in joints and suspension components, as these can become critical if not serviced promptly. Given the recurring advisories and past failures, the prospective buyer should conduct a thorough physical inspection of the vehicle’s suspension and drivetrain components. Focus on the front and rear ball joints, as the 2015 MOT revealed excessive play, which could lead to steering instability or misalignment if not replaced. Listen for unusual clunks or rattles in the suspension during a test drive, particularly when navigating bumps or corners, as these may indicate worn suspension bushes or failing coil springs. The oil leak should be addressed promptly to prevent further contamination of the drivetrain, and the corroded coil spring mounting should be checked for structural integrity, as corrosion in this area can compromise the vehicle’s handling and safety. Additionally, verify the condition of the prop shaft joint and wheel bearings, as slight play noted in the MOT tests could worsen with further use. For the buyer’s practical inspection, examine the tyres for signs of sidewall cracking or perishing, which can occur even at low mileage due to age-related degradation. Check the brake discs for corrosion or binding calipers, as the 2019 MOT noted an inability to assess the rear brakes, and the 2015 failure highlighted brake imbalance. Inspect the bodywork for any signs of rust progression, particularly around the inner arches and rear, as the advisories suggest ongoing corrosion that may require protective measures or repairs. Given the low mileage and potential standing-related issues, consider checking the 12V battery health and ensuring all fluids—oil, coolant, and brake fluid—are at appropriate levels and not showing signs of degradation from age. If the vehicle has been stored for extended periods, verify that all fluids have been topped up and that the battery is fully charged to prevent further corrosion or failure. Finally, review the service history for any missing or overdue maintenance, such as the front prop shaft noted in the 2019 MOT, to ensure no critical components have been neglected.