2014 Mercedes Unknown 3.0L Diesel · MH04 SNH

The vehicle presents a concerning roadworthiness profile characterized by a history of neglected brake system maintenance and recurring corrosion. While the most recent test in November 2025 passed at 79,303 miles, it followed an immediate failure just three days prior due to a binding rear brake and extensive corrosion across multiple brake lines. The trend indicates a reactive rather than proactive maintenance approach, as the issues with corroded pipes and pitted brake discs suggest that the owner only addresses faults when they reach a failure threshold rather than performing preventative repairs. The mileage data reveals a significant discrepancy in usage patterns. Between November 2023 at 67,775 miles and November 2024 at 116,908 miles, the vehicle covered nearly 49,000 miles in a single year. However, the subsequent record in November 2025 shows the mileage at 79,303 miles, a drop of over 37,000 miles. This suggests either an odometer recording error or a significant period of non-use, which often correlates with the pitting on brake discs and the corrosion on the hydraulic lines noted in the records. A buyer must conduct a thorough physical inspection of the entire braking system and associated routing. The tester repeatedly flagged corrosion on the rear and front brake pipes, particularly near the fuel tank and chassis clips, which poses a risk of sudden hydraulic failure. Specific attention is required for the wiring harness and cooling pipes, as the 2024 failure highlighted these components were improperly secured and rubbing against metal surfaces. Given the previous history of track rod end play and binding calipers, the suspension geometry and brake caliper assembly should be tested to ensure no further mechanical wear has developed beyond the recorded advisories.