2012 Mercedes-Benz E 2.1L Diesel · T88 DAX

The most recent MOT inspection on 7 March 2026 resulted in a pass, but the vehicle's maintenance trajectory shows signs of inconsistent upkeep regarding consumables. While the most recent advisory is limited to a non-excessive oil leak, the preceding years reveal a pattern of neglected braking components and tyre wear. The 2025 inspection was particularly concerning, involving a dangerous failure due to critically thin front brake pads and a failure to test brake performance, which indicates a significant lapse in preventative maintenance. Although the vehicle has passed subsequent tests, the recurring advisories for worn tyres and thinning brake pads suggest that maintenance is often reactive rather than proactive, which can lead to more costly component failures if left unaddressed. With a recorded mileage of 135,785 over approximately 14 years, this Mercedes-Benz E-Class has averaged roughly 9,700 miles per year. This is considered typical annual usage for a vehicle of this class and age, suggesting it has been used regularly rather than sitting idle for extended periods. This consistent usage is generally positive for mechanical health as it helps prevent excessive corrosion on brake discs and keeps seals lubricated; however, the mileage is high enough that wear and tear on suspension bushes, coil springs, and drivetrain components should be expected. The steady accumulation of miles means that while the vehicle is not a low-mileage example prone to rubber perishing from standing, it is entering a phase of life where major service items and wear-related repairs are increasingly common. A prospective buyer must pay close attention to the braking system and tyre condition during a test drive. The history of pitted or scored front brake discs and thin pads means you should listen for any grinding or squealing noises when applying the brakes and feel for any pulsations or shuddering through the pedal, which could indicate warped discs. The advisory regarding the oil leak should be monitored closely; look for any fresh fluid pooling under the engine or signs of weeping around the sump or valve cover. During the test drive, pay attention to any uneven tyre wear or pulling to one side, as the repeated advisories for tyres worn on the edges suggest potential issues with wheel alignment or worn suspension components like control arm bushes. Finally, given the age of the vehicle, you should perform a physical inspection of the rubber components and fluid health. Check the tyre sidewalls for any signs of perishing or cracking, which can occur even if tread depth is sufficient. Inspect the underside of the vehicle for signs of structural corrosion or heavy buildup of road grime that might hide more significant leaks. Because the vehicle has a history of brake-related issues, it is advisable to verify that the service book contains evidence of regular fluid changes, particularly brake fluid, which should be replaced every two years to prevent moisture contamination. Ensure that all suspension components feel tight and that there are no clunks or knocks when driving over uneven surfaces, as these are common symptoms of aged bushings on a vehicle with this mileage profile.