2018 MG ZS 1.5L Petrol · SG68 AAF

The 2018 MG ZS received its most recent MOT test on 2025-10-28, achieving a passing result with three advisories that indicate ongoing but not critical issues. The advisories regarding the offside and near-side rear tyres showing signs of cracking or perishing sidewall damage, alongside a minor oil leak from the gearbox, suggest a maintenance trend that remains stable rather than deteriorating. There is no evidence of progressive failures or repeated severe defects, and the vehicle has not failed an MOT since 2021, indicating consistent roadworthiness compliance. However, the recurring tyre and brake disc advisories warrant careful attention, as they reflect wear patterns that could escalate if left unaddressed. The vehicle’s recorded mileage of 46,427 miles over approximately eight years represents an annual usage rate of around 5,803 miles, which is notably lower than the typical wear rate for a similarly aged MG ZS. Such low mileage can result from infrequent use, long periods of stationary storage, or a lifestyle that avoids heavy traffic or long-distance travel. While this may reduce direct wear on components like tyres and brakes, it also raises concerns about potential issues stemming from prolonged inactivity. For instance, standing for extended periods can lead to brake disc corrosion or caliper binding, fluid degradation in the cooling and hydraulic systems, and the deterioration of rubber components such as suspension bushes and seals. Additionally, the oil leak advisory may be exacerbated by stagnant conditions, as gearbox fluids can break down more rapidly when not circulated. For the prospective buyer, the most critical areas to inspect during a physical examination and test drive are the tyres, brakes, and suspension. The tyre advisories from the MOT tests—particularly the cracking and perishing of the sidewalls—indicate that the vehicle has already experienced wear beyond the safe operational limits. On inspection, check for any further signs of sidewall damage, including bulges or separation, which could compromise tyre integrity. During a test drive, monitor for uneven tyre wear patterns that might suggest misalignment or suspension issues, and listen for unusual noises such as squealing or grinding, which could indicate worn brake pads or damaged brake discs. The brake disc advisories suggest that the discs are worn but not yet critically compromised, so a closer look at their surface condition and thickness is advisable. If discs appear pitted or scored, consider replacing them sooner rather than later to prevent reduced braking performance or premature pad wear. Beyond the mechanical checks, the buyer should also address the minor oil leak from the gearbox, as this could escalate if not rectified. A thorough inspection of the gearbox area for any fluid pooling or signs of contamination is essential. The low annual mileage profile means the vehicle may have experienced time-based degradation in fluids such as the brake fluid, coolant, and engine oil, which can become less effective over prolonged periods of inactivity. Check the fluid levels and condition of these systems, replacing any that appear degraded or contaminated. Additionally, given the vehicle’s age and the potential for prolonged standing, it is prudent to verify the battery health, as a dormant battery can suffer from corrosion or reduced capacity. Finally, ensure that the service history is up to date, particularly for the suspension components, as low-mileage vehicles can still develop issues from prolonged static stress, such as stiffening or failure of suspension bushes or springs. A comprehensive inspection by a qualified mechanic, including a thorough examination of the drivetrain and exhaust system, would provide further reassurance of the vehicle’s roadworthiness.