2013 Mercedes-Benz E 2.1L Diesel · FX63 GDZ

A recurring weakness in the parking‑brake system and rear tyre tread depth dominates the MOT history, with two dangerous‑dangerous failures recorded in 2022 and 2024 for insufficient parking‑brake efficiency and sub‑1.6 mm rear‑tyre tread. The anti‑roll bar linkage ball joint also shows a progression from advisory wear in 2020 to a major fault in 2022 and a lingering advisory in 2023. The latest test on 3 November 2025 passed with no defects, indicating that the most recent remedial work has temporarily restored compliance, but the pattern of repeated failures suggests an underlying propensity for these components to deteriorate. At 130,652 mi the vehicle averages roughly 10,000 mi per year, a mileage rate that is typical for a thirteen‑year‑old saloon. Annual MOTs have been recorded without significant gaps, confirming consistent road‑use exposure. The mileage level places the wear cycle of consumables—tyres, brake pads, suspension bushings and anti‑roll bar joints—well into the mid‑to‑late service life, meaning that components previously flagged are likely approaching the end of their useful interval and may require proactive replacement. When inspecting the parking brake, verify that the lever exhibits firm, consistent travel with a clear end‑point and that the vehicle remains stationary on a level surface when the brake is applied. Any excessive lever movement, sponginess or a need for multiple pulls could indicate the same adjustment issue that caused the 2024 failure. Examine the rear tyre tread on both sides; tread depth should be at least 1.6 mm across the entire width. Uneven wear or shallow sections may be a residual symptom of the earlier dangerous‑dangerous failure and could necessitate immediate tyre replacement. For the anti‑roll bar linkage, check the ball‑joint for any perceptible play by applying pressure to the front wheel while the car is lifted; a clunk or looseness would confirm the advisory noted in 2023 and the major fault recorded in 2022. The front lower suspension arm pins and bushes, flagged as advisory wear in 2020, should be inspected for any looseness or knocking when the vehicle is driven over bumps or during hard cornering. Listen for metallic raps from the wheel arch and feel for any vibration transmitted through the steering column, which would suggest progression beyond the advisory stage. Additionally, the dust‑cover condition on the anti‑roll bar ball joint should be examined; a missing or severely deteriorated cover can allow dirt ingress, accelerating joint wear. Replacing the dust cover and re‑adjusting the anti‑roll bar linkage, together with a thorough test‑drive focusing on steering feel and suspension response, will address the most persistent weaknesses evident in the MOT record.