2021 MG ZS Exclusive VTI-Tech 1.5L Petrol · ST02 ACY

A consistent pattern of brake disc wear advisories across multiple MOT tests is the defining mechanical characteristic of this 2021 MG ZS. The 2026 test on 11 June returned a clean pass with no defects recorded, which is reassuring, but it follows a 2025 test where all four brake discs were flagged as worn, pitted, or scored, and a 2024 test where the rear brake discs were similarly noted. The progression suggests the braking system has been on a gradual decline rather than a sudden deterioration, with the front discs joining the rear in showing surface degradation by mid-2025. The fact that none of these advisories escalated to failure points indicates the wear is being monitored and the components are likely still serviceable, though a prospective buyer should treat the braking system as the primary area of mechanical concern. Mileage accumulation of 48,013 miles over approximately five years equates to around 9,603 miles annually, which is broadly typical for a vehicle of this age. There are no significant gaps in testing history that would suggest prolonged periods off the road, and the mileage progression between tests appears consistent with regular use. This usage pattern is mechanically favourable as it implies the engine, transmission, and ancillary components have been worked regularly rather than subjected to the stresses of short, cold journeys or the deterioration associated with long-term storage. The braking wear pattern observed is therefore likely a function of normal urban and suburban driving rather than any unusual usage profile. Given the repeated brake disc advisories, particular attention should be paid to the braking system during any inspection and test drive. Lift the bonnet and examine the brake fluid level and condition, then visually inspect the wheels to gauge disc edge wear and pad material thickness if possible. On the road, listen for any grinding, squealing, or pulsation through the brake pedal, as pitted discs can produce vibration under heavy braking. The pedal should feel firm and progressive rather than spongy, and the vehicle should track straight under steady braking without pulling to either side. Also test the handbrake holding on an incline, as rear disc wear noted in two consecutive tests can sometimes correlate with caliper or handbrake mechanism issues on this model. The 2024 advisory regarding nearside and offside front tyres worn close to the legal limit or on the edge suggests a possible alignment or suspension geometry concern, particularly given the wear was noted on both sides simultaneously. During a test drive, pay close attention to steering straight-line stability and any pulling to one side, especially over uneven road surfaces. Listen for clonking or knocking from the front suspension over speed bumps, and inspect the tyres for uneven inner or outer edge wear which would indicate camber or tracking issues. Given the recurring brake disc surface degradation, a prospective buyer should budget for a full disc and pad replacement on at least the front axle, and should request evidence of any recent braking system work to confirm whether the 2024 and 2025 advisories have been addressed.