2012 Mercedes-Benz E 2.1L Diesel · LT12 KSZ

Persistent component wear defines the mechanical history of this fourteen-year-old Mercedes-Benz, which accumulated a notable failure for critical braking and safety systems before securing a pass on December 11, 2025 at 113,781 miles. While the vehicle has successfully navigated eight recorded annual MOT tests, the transition from a dangerous front brake failure and supplementary restraint system fault in early December 2025 to a pass just a week later indicates that defects have historically been addressed reactively to clear compliance rather than preemptively. Recurring items such as thinning friction material and front suspension play point to a chassis that regularly demands component renewal rather than one enjoying a trouble-free service history. With an odometer reading of 113,781 miles accrued over roughly fourteen years, the vehicle averages around 8,127 miles annually, aligning closely with typical UK driving patterns. This consistent accumulation rate avoids the mechanical risks associated with prolonged static storage or extreme high-mileage fleet use, meaning major drivetrain and auxiliary assemblies have experienced steady thermal cycles and standard operational wear without anomalous gaps in the test timeline. A thorough physical inspection and dynamic test drive are essential to evaluate the health of the front end, given that the recent MOT flagged slight play in both front wheel bearings alongside historical advisories for lower suspension arm ball joints. During a test drive, listen carefully for rumbling or humming noises from the front hubs that intensify at cruising speeds, and check for structural clunks or knocking when negotiating potholes, speed humps, or sharp turns. Additionally, verify that the steering returns smoothly to centre and that the front tyres exhibit even tread wear rather than scrubbing on the inner or outer shoulders due to worn suspension geometry. The braking system warrants immediate scrutiny given the recent dangerous severity classification for worn front inner brake pads, alongside advisories noting that both front and rear brake discs are worn and rear pads are wearing thin. During braking tests, pay close attention to any pulsation or judder through the brake pedal, which would indicate warped or heavily scored discs requiring complete replacement. Finally, test the supplementary restraint system warning lamp on the dashboard to ensure it illuminates and extinguishes correctly upon startup, confirming that the electrical fault noted in the December 2025 failure record has been fully rectified rather than temporarily bypassed.