2013 Mercedes-Benz E 2.1L Diesel · SH53 AAA

The 2013 Mercedes-Benz E carries a mixed MOT record that reflects a pattern of intermittent failures rather than consistent reliability. Two major failures occurred in late 2021 involving corroded brake pipes on both sides and a fractured offside rear coil spring, followed by a further major failure in November 2023 where a nearside front coil spring broke and parking brake efficiency dropped below requirements. The car subsequently cleared its test in December 2025, returning to a passing status. The overall trend is therefore one of instability with recoveries, with the most recent test indicating the vehicle is presently roadworthy despite prior serious issues. With 191,113 recorded miles on a thirteen-year-old chassis, the annual accumulation averages approximately 14,700 miles, which is substantially above typical expectations for a model of this age. The spacing between tests shows irregularity, including a five-month gap before the 2023-11-29 failure and a notably longer period until the successful 2025-12-10 test. Such a high mileage profile combined with uneven service intervals implies significant wear on suspension linkages, brake components, and drivetrain assemblies, and the presence of multiple major failures suggests that earlier damage may still be affecting the vehicle's mechanical integrity even after the initial repairs. The braking system presents the most critical concerns requiring immediate attention. Both the nearside and offside brake pipes were found corroded and heavily greased throughout the 2021-2022 period, creating a persistent source of leakage and reduced braking performance. On a test drive, listen for audible squeal or grinding when applying the brakes, particularly noticeable on hard stops, and watch for a soft or spongy pedal feel due to possible internal pipe degradation. Additionally, the nearside front coil spring fracture in late 2023 will likely manifest as a clunking or knocking sensation over bumps, especially when accelerating or decelerating quickly through corners. Beyond the braking system, the fractured coil springs identified across multiple failures suggest compromised rear suspension geometry, which can lead to uneven tire wear and increased vibration during cornering. A thorough visual inspection of the subframe and brake lines is advisable, paying particular attention to rust penetration and loose fittings that may not yet show obvious symptoms. If the vehicle is to be purchased, arrange for a professional examination of the coil springs and brake pipes to confirm whether the previous repairs were adequate and whether the current 2025 pass reflects genuine resolution or merely temporary compliance.