2015 Mercedes-Benz A-Class 1.5L Diesel · FY15 FEK

A recurring weakness in the front anti‑roll bar linkage is the dominant mechanical narrative for this 2015 Mercedes‑Benz A‑Class. The most recent MOT on 19 March 2026 recorded a major failure for both nearside and offside front anti‑roll bar ball joints, indicating they are excessively worn, and the same test also flagged the dust‑cover assemblies as no longer preventing dirt ingress. This mirrors the 21 June 2023 failure where the dust‑covers were similarly condemned and a dangerous tyre perished, suggesting the anti‑roll bar area has been a persistent point of deterioration rather than an isolated incident. At 100 673 miles the vehicle averages roughly 9 150 miles per annum, a mileage rate that sits comfortably within normal usage for its age. The MOT history shows annual testing with no prolonged gaps, which means the recorded mileage aligns with the observed wear patterns. The relatively moderate annual accumulation does not, in itself, accelerate component fatigue, but the front suspension elements have shown wear out of proportion to the mileage, implying either a design‑related stress point or a history of road conditions that have taxed the anti‑roll bar linkages. When inspecting the car, concentrate on the front suspension. With the ball joints reported as excessively worn, feel for any play when the front wheels are rocked laterally and listen for clunking noises over bumps, especially on uneven surfaces. Examine the dust‑cover housings for cracks or missing pieces that could allow grit to contaminate the joint surfaces. Verify that the steering remains steady and does not exhibit a pull to one side, which would corroborate excessive wear. Given the advisory on front brake pads being thin, the pads should be measured for remaining material and the discs inspected for scoring; anticipate a brake service soon. The tyre condition also demands attention. The 2023 dangerous tyre perished with exposed cords, and an advisory on tyre cracking was present the same year, so all four tyres should be examined for tread depth, sidewall integrity and any signs of dry‑rot or cuts. Replace any tyre that shows perishing or significant cracking. Addressing the front anti‑roll bar ball joints and dust‑covers, renewing the brake pads, and fitting a fresh set of tyres will be essential steps before the vehicle can be considered reliably roadworthy.