2015 Mercedes-Benz S-Class 3.0L Diesel · WAY 4

A consistent record of roadworthiness has been established over the last three years, culminating in a clean pass on 24 September 2025. This stability follows a more problematic period in 2021, where the vehicle failed its inspection due to critical safety defects involving the braking system and front suspension. With 131,799 miles recorded over an eleven-year period, the vehicle has averaged approximately 11,982 miles annually. This usage pattern is typical for this class of vehicle, though such mileage implies a higher likelihood of wear on complex drivetrain components and the sophisticated suspension systems common to the S-Class. The 2021 failure of the nearside front suspension arm ball joint, combined with advisories regarding inner edge wear on both rear tyres, points to previous issues with suspension geometry and alignment. During a test drive, listen for any knocking or clicking sounds when traversing uneven road surfaces or during low-speed manoeuvring, as these symptoms often indicate further wear in the suspension linkages or bushings. The dangerous failure recorded in September 2021 regarding rear brake pad thickness and the associated advisory for pitted rear discs necessitate a thorough check of the current braking hardware. Feel for any vibration or judder through the brake pedal during deceleration to ensure the discs are not warped. Additionally, verify that the underbody covers mentioned in the 2022 advisory are securely fitted and not loose, as these are essential for aerodynamics and protecting the engine bay from debris.