2002 Mercedes-Benz S-Class 3.2L Diesel · PF51 XFX

Corrosion affecting the rear suspension mounting points and sills represents the primary mechanical concern for this vehicle, following a significant failure in January 2024. While the most recent test on 17 January 2026 resulted in a pass, the record shows a recurring pattern of structural degradation, with advisories for corrosion on both the nearside and offside rear suspension components near the sill ends and jack points. This follows a major failure in early 2024 where the corrosion was deemed excessive, significantly reducing structural strength and resulting in holes at the jacking points. Although the vehicle has since passed, the presence of these advisories indicates that the oxidation process is ongoing and remains a critical area of interest for the vehicle's long-term structural integrity. The recorded mileage of 145,445 miles over a 24-year period equates to an average annual accumulation of approximately 6,060 miles. This represents a relatively low usage pattern for a vehicle of this age, which can sometimes correlate with longer periods of inactivity. From a mechanical standpoint, this level of usage suggests that while the drivetrain may have lower cumulative wear than a high-mileage equivalent, components such as rubber suspension bushes, seals, and various linkages may be more susceptible to age-related perishing and environmental degradation rather than purely mileage-based fatigue. A test drive should focus heavily on the rear suspension and chassis areas to assess the stability of the previously noted corrosion. Listen for any rhythmic knocking, clunking, or creaking sounds when traversing uneven surfaces or speed bumps, which could indicate that the structural integrity of the mounting points is affecting the suspension geometry. Furthermore, pay close attention to the steering response and any potential wandering; a 2020 advisory noted slight play in the offside front inner steering rack end, and while not repeated in recent tests, any vibration through the steering wheel or a lack of precision in direction changes should be investigated. Regarding the braking and tyre systems, the history shows previous advisories for thinning front brake pads and rear tyres wearing close to the legal limit in 2023. While these specific items may have been addressed, you should verify the remaining life of the consumables. During the test drive, monitor for any pedal judder or uneven braking performance, which could point to issues with disc thickness or caliper function. Given the history of windscreen damage appearing in multiple consecutive tests between 2023 and 2024, a physical inspection of the glass for chips or cracks that could compromise structural strength or driver visibility is also warranted.