2022 MG ZS Exclusive VTI-Tech 1.5L Petrol · HN22 AAV

The latest DVSA MOT test for the 2022 MG ZS EXCLUSIVE VTI-TECH on 2026-03-25 resulted in a pass, though it included a single advisory regarding the offside rear coil spring showing signs of corrosion. This is the first recorded MOT failure or advisory in the vehicle’s history, with the preceding test in 2025-03-24 passing without any defects. The trend thus far is stable, with no evidence of worsening mechanical issues, but the presence of this corrosion advisory suggests that the suspension system, particularly the coil spring, has been exposed to moisture or poor maintenance over time. The advisory itself is a critical warning that indicates the spring may be nearing the end of its serviceable life, where it could fail catastrophically, leading to severe suspension collapse or even rollover risk. Buyers should treat this as a proactive maintenance priority rather than a mere passing grade, as corrosion in coil springs often progresses silently until failure occurs. The recorded mileage of 17,824 miles for a vehicle aged four years represents a relatively low annual usage rate of approximately 4,456 miles per year, which is notably below the industry average for a car of this age and class. Such low mileage can result from infrequent driving, long periods of inactivity, or deliberate underuse, all of which introduce unique wear and maintenance challenges. One of the most significant concerns with low-mileage vehicles that have stood for extended periods is the risk of standing corrosion, particularly in the suspension, exhaust systems, and underbody components. Additionally, fluids such as brake fluid, differential fluid, and transmission fluid can degrade over time due to evaporation and oxidation, even without use, which may lead to reduced effectiveness or premature failure if not replaced. The absence of rapid mileage accumulation means that consumable items like tyres, filters, and fluids may not have been subjected to the same levels of wear as higher-mileage vehicles, but this also means that age-related degradation—such as tyre sidewall perishing or fluid dry-out—could be more pronounced. To proceed with a thorough inspection, the prospective buyer should focus on the suspension system, particularly the coil springs and associated components, as the advisory indicates corrosion is already present. Visually inspect the offside rear coil spring for signs of significant rust, deformation, or separation from the mounting points. During a test drive, listen for unusual suspension noises such as clunks, rattles, or a loss of ride height, which could signal spring failure or bush wear. The buyer should also check for uneven tyre wear patterns, which may indicate misalignment or suspension misalignment caused by the corroded spring. Additionally, the vehicle’s exhaust system should be examined for signs of rust or structural weakness, especially around the catalytic converter and tailpipe, as prolonged standing can accelerate corrosion in these areas. If the spring is confirmed to be beyond repair, the buyer should budget for replacement, as the cost may be justified by the risk of a sudden, expensive failure. For practical checks beyond the MOT advisory, the buyer should verify the condition of the tyres, ensuring there is adequate tread depth and inspecting the sidewalls for signs of cracking or perishing, which can weaken the tyre structure over time. The 12V battery should be tested for charge capacity and terminal corrosion, as low-mileage vehicles that stand for long periods can develop battery issues due to prolonged discharge cycles. The brake system should be inspected for signs of corrosion on brake discs, particularly if the vehicle has been stationary for extended periods, which can cause disc binding or reduced braking performance. Fluid levels and condition should be checked, with brake fluid replaced if it appears dry or discoloured, and differential and transmission fluids replaced according to the manufacturer’s recommended service intervals, even if mileage is low. Finally, the service book should be reviewed to confirm that scheduled maintenance, such as oil changes and filter replacements, has been completed, as calendar-based servicing is critical for fluid and component longevity in low-mileage vehicles.