2018 Mercedes-Benz A-Class 1.5L Diesel · BW67 NLR

A recurring rear‑service‑brake binding advisory threads through the MOT history, with the most recent pass on 10 January 2026 confirming the condition remains within acceptable limits but has not been resolved. The record also shows a single major failure – an inoperative engine MIL indicator on 2 January 2026 – which was cleared by the subsequent test, leaving the vehicle with an otherwise clean sequence of passes apart from the brake‑binding note that has appeared on every test since 2023. At 102 313 miles the car averages roughly 12 800 miles per year, a mileage rate that exceeds the typical UK average for a 2018 model. The consistent annual testing cadence indicates no prolonged periods of inactivity, suggesting the wear observed is a function of steady use rather than intermittent storage. High cumulative mileage accelerates consumable wear, particularly on braking components, tyres, suspension bushings and drivetrain bearings, and it raises the probability that items flagged as advisories may be approaching the end of their service life. When inspecting the brakes, pay close attention to any pedal feel that feels soft, spongy or exhibits a slight drag on release, especially under light to moderate braking – symptoms that can betray a binding rear service brake. Listen for grinding or a high‑pitched squeal that would indicate the front and rear discs, already noted as worn and pitted, are nearing the minimum thickness required for safe operation. Verify that the rear brake caliper moves freely and that there is no uneven brake pad wear or fluid leakage around the caliper pins. On a road test, watch for a pull to one side when braking or a pulsation in the pedal, both of which would corroborate the binding advisory. The engine‑light failure recorded in early 2026 warrants a scan for any lingering fault codes and a check that the MIL illumination behaves correctly under acceleration and load. Confirm that the engine cover and under‑tray fittings noted as advisories are secure and do not permit debris ingress that could affect cooling or under‑body components. Finally, inspect the near‑side rear tyre for tread depth and side‑wall condition, as it was flagged as close to the legal limit in 2022; uneven wear may also hint at alignment or suspension issues that should be evaluated before committing to purchase.