2016 Vauxhall Mokka 1.6L Diesel · EU16 AAX

The most recent MOT test on the Vauxhall Mokka occurred on 2025-09-09, where it initially passed but subsequently failed due to a major fault in the tyre pressure monitoring system (TPMS) and a persistent coolant leak advisory. This pattern indicates a recurring issue rather than a one-off problem, suggesting that the vehicle’s underlying systems may not be fully reliable without addressing these core failures. The failure of the TPMS—critical for maintaining safe tyre pressures and preventing blowouts—demands immediate attention, as it compromises road safety and could lead to further mechanical stress if ignored. The coolant leak advisory, while not failing the test outright, points to a potential overheating risk and internal engine damage if left unresolved, as coolant loss can lead to severe thermal stress, warping components, or even engine failure over time. The fact that the vehicle passed in 2024 and 2023 without such issues suggests these problems may have emerged due to recent wear, wear-and-tear progression, or a possible service omission. The recorded mileage of 53,601 miles for a vehicle aged approximately ten years represents a notably low annual usage rate of around 5,360 miles per year, which is unusually low for its age. Such low mileage often correlates with periods of prolonged inactivity, where components like brakes, suspension, and seals can degrade due to standing corrosion, fluid stagnation, or lack of dynamic stress. For example, brake discs and pads may exhibit binding or corrosion from not being fully engaged during braking, leading to uneven wear or reduced braking efficiency. Similarly, suspension bushes and coil springs can stiffen or crack from lack of movement, causing clunking noises or reduced ride quality. The coolant leak could also be exacerbated by standing, as stagnant coolant may corrode internal passages or seals more rapidly than in a regularly driven vehicle. Conversely, if the mileage were higher, wear on consumables like tyres, brake pads, and engine components would be more pronounced, but the current low usage profile demands extra scrutiny for hidden issues arising from static conditions. Given the recurring TPMS and coolant leak advisories, the prospective buyer must prioritise a thorough mechanical inspection to confirm the severity and source of these faults. Start with the TPMS system: check for physical damage to the sensors, wiring, or connections, and verify that the system can be reset or reprogrammed if the issue is intermittent. Listen for any unusual noises during acceleration or braking that might indicate binding calipers or warped brake discs, which are common in low-mileage vehicles left standing. Inspect the coolant system for visible leaks around hoses, radiator, or water pump, and check for overheating symptoms such as steam from the hood or a rising engine temperature gauge. If the coolant leak is confirmed, the buyer should also verify the engine’s internal condition by examining for signs of overheating damage, such as cracked head gaskets or warped cylinder heads, which can only be diagnosed through a professional inspection or removal of the head. For the brake system, given the advisories on near-side front brake discs and pads, the buyer should inspect the discs for excessive wear, pitting, or scoring that could compromise stopping performance. Look for signs of glazing or uneven thickness, which may indicate poor braking habits or pre-existing wear. The pads should be measured for thickness; if they are significantly worn, replacement is necessary to maintain braking efficiency. Additionally, check for corrosion or rust on the brake calipers and backing plates, which can lead to binding or reduced braking force. On the test drive, observe the braking response—particularly at low speeds—to detect any shuddering, pulling, or reduced stopping distance, which could signal warped discs or failing calipers. For the coolant system, if the leak persists, the buyer should consider a full coolant flush and replacement of any compromised hoses or seals to prevent further damage. Lastly, given the vehicle’s age and low mileage, a comprehensive fluid check—including brake fluid, differential fluid, and transmission fluid—should be performed to ensure they are free of contamination and at the correct level, as standing fluids can degrade over time. If possible, obtain a service history to confirm any recent fluid changes or component replacements.