2020 Mercedes-Benz E 4.0L Petrol · GT63 ZAK

Brake wear is the sole mechanical note in the MOT record, with the latest test on 13 July 2026 confirming a pass but flagging a front brake disc that is worn, pitted or scored and a front service brake that is fluctuating, albeit not excessively. The 2023 test recorded no defects, indicating that the brake advisories have emerged only in the most recent inspection and have not yet escalated to a failure. This pattern suggests a developing issue rather than a chronic fault, and the vehicle remains road‑worthy for the time being. The odometer reads 8,165 miles after six years, averaging roughly 1,360 miles per annum – a markedly low utilisation rate for a 2020 Mercedes‑Benz E‑Class. Such limited mileage often points to light use or prolonged periods of inactivity, which can preserve wear‑prone components such as brakes, suspension bushings and drivetrain parts, but may also allow moisture to settle in seals, hoses and the under‑body, potentially fostering corrosion or rubber hardening. The absence of any MOT tests between 2023 and 2026 is consistent with the low‑usage profile rather than a testing gap. Prospective buyers should focus on the front braking system. On a test drive, feel for any pedal pulsation, sponginess or a change in pedal travel that could corroborate the service‑brake fluctuation noted by the examiner. Listen for squeal, grinding or a metallic scrape when applying the brakes, which would indicate disc surface damage beyond the advisory level. Visually inspect the front discs for deep scoring, uneven wear or thinning; a calibrated micrometer reading should confirm whether the remaining thickness meets the manufacturer’s minimum. If the discs are close to the wear limit, replacement of the discs and possibly the pads will be required to avoid a future MOT failure. Although the MOT history shows no other defects, the low‑mileage, potentially static usage warrants a thorough inspection of ancillary items. Check the condition of the tyre tread and sidewalls for dry rot, verify that the suspension bushes and coil springs are free of cracks or excessive play, and examine the under‑carriage for any signs of rust or corrosion, especially around the wheel arches and sub‑frame. Confirm that all fluid levels are correct and that there are no external leaks from hoses or the brake system. A comprehensive pre‑purchase inspection by a qualified technician will confirm whether the emerging brake advisories are isolated or part of a broader wear pattern.