2021 MG ZS Trophy EV Electric · GJ71 ABU

A lightly used electric crossover carrying a broadly clean MOT record, though a single advisory at the most recent test on 20 November 2025 warrants attention before committing to purchase. That assessment was a pass with an advisory noting rear inner brake disc wear and grooving, a finding consistent with the modest but present mechanical use implied by 15,506 recorded miles. Braking components naturally accumulate wear from routine operation rather than age alone, so grooving on the inner friction surface indicates the discs have been working, with the pad material cutting fine channels into the metal. Prior to that, the 15 November 2024 test produced a clean pass with no advisories or failures recorded, so there is no escalating pattern of brake deterioration across the documented tests, just one isolated observation at the latest examination. No structural, suspension, tyre, lighting, or emissions defects have been flagged in either recorded test. Annual mileage is markedly low at roughly 3,101 miles per year against a five-year vehicle age, an accumulation rate typical of a second car, commuter-light use, or a vehicle that has spent significant periods standing. Such low usage is mechanically benign for an electric powertrain compared with combustion equivalents, as there is no clutch, timing belt, turbo, or exhaust system subject to thermal cycling stress, and the regenerative braking system reduces conventional pad and disc workload considerably. Nevertheless, prolonged standing can introduce considerations specific to any lightly used vehicle, particularly around brake disc surface corrosion, tyre flat-spotting or sidewall degradation from constant load on one spot, and 12V auxiliary battery condition. The recorded history shows no multi-year gaps in testing, and mileage accumulation appears steady rather than erratic, with no anomalies suggesting clock irregularities or extended off-road periods between examinations. For a prospective buyer, the rear brake advisory should be the priority follow-up, even though the disc was not deemed excessively worn at test. On a test drive, listen for any rhythmic rubbing or scraping from the rear wheels when moving off slowly, which can indicate a seized or binding rear caliper preventing the pads from retracting fully, and feel for any judder through the brake pedal or steering wheel under moderate to firm braking, as inner disc wear can sometimes produce uneven friction. Inspect the rear discs visually through the wheel spokes for a clearly visible raised lip on the outer edge, deep circumferential scoring, or any bluish heat tinting suggesting overheating. Because EVs rely heavily on regenerative deceleration, confirm that the conventional friction brakes are actually engaging at lower speeds and during harder stops, as seized calipers can mask themselves through reliance on motor regen. With the rear discs already showing measurable wear at low mileage, factor in the cost of replacement when negotiating, as rear discs and pads on this model should be inspected by a technician with the wheel removed for accurate thickness measurement, and confirm whether the discs can be machined or require renewal. Check that all four tyres match in brand, size, and tread depth, as uneven tyres on an EV can trigger traction control faults and affect range readings. Inspect the underside of the vehicle, particularly the rear subframe mounting areas and brake pipe runs, for any surface corrosion, and verify that the high-voltage charging port and cable show no signs of damage or contamination. Finally, request evidence of any software updates or high-voltage battery health checks carried out under warranty, as MG has issued several updates for ZS EV models, and confirm the remaining manufacturer warranty status before purchase.