2025 BYD Seal U Boost DM-I Phev Auto Hybrid electric (clean) · T15 HDF

The vehicle’s roadworthiness cannot be assessed due to the complete absence of MOT history, leaving no record of test outcomes, advisories, or mechanical condition at any point. Without even a single test date, there is no baseline to determine whether the vehicle’s maintenance has been stable, deteriorating, or improving over time. The lack of data means critical components—such as high-voltage battery integrity, regenerative braking systems, or hybrid-specific emissions compliance—have never been formally verified by an MOT tester. This gap is particularly concerning for a plug-in hybrid, where electrical and mechanical systems must meet stringent safety and emissions standards that are not always evident from conventional roadworthiness checks. Mileage data is entirely absent, making it impossible to evaluate whether the vehicle has been driven sparingly or excessively for its age. A 2025 model with no MOT record suggests either a brand-new purchase (unlikely given the lack of test history) or a vehicle that has never entered service, which is highly improbable for a used car. Even if the mileage were low, the absence of any test record means there is no confirmation that pre-delivery inspections or initial servicing were conducted. Without this, buyers cannot infer whether the vehicle has been stored properly or if critical pre-MOT checks—such as suspension alignment, brake pad thickness, or fluid levels—were ever addressed. Given the complete lack of MOT data, an immediate priority for any buyer would be a thorough pre-purchase inspection focusing on hybrid-specific risks. The high-voltage battery should be checked for swelling, corrosion, or electrolyte leaks, as these are not always visible without specialist tools. The regenerative braking system and associated wiring must be tested for proper function, as faults here often go unnoticed in basic roadworthiness tests. Structural integrity of the battery compartment and underbody should also be scrutinised for corrosion or damage, particularly in areas prone to salt or moisture ingress. Additionally, the conventional braking system—including brake discs, calipers, and pads—must be inspected for uneven wear or binding, as these issues can escalate quickly in hybrid vehicles where regenerative braking reduces mechanical load. The suspension’s condition, especially coil springs and bushes, should be examined for wear, as these components are critical for handling and safety but are often overlooked in vehicles with limited MOT history.