2025 BYD Seal U Comfort DM-I Phev Auto Hybrid electric (clean) · LC75 HCN

The BYD SEAL U Comfort DM-I is a brand-new vehicle, having been registered in 2025, and consequently, the DVSA database currently holds no MOT test records for it. Because the car is less than one year old, it is not yet legally required to undergo its first MOT test, which under UK regulations becomes mandatory at three years from the date of first registration. As a result, there is no historical pattern of pass or failure outcomes, no advisory items, and no recorded defects to evaluate from official sources. Any prospective buyer is therefore relying entirely on the manufacturer's standard warranty cover and the condition of the car at the point of sale, rather than on a documented DVSA roadworthiness track record. Recorded mileage data is also unavailable for this vehicle, so it is not possible to calculate an annual mileage accumulation rate or to compare usage intensity against typical figures for a PHEV SUV of this class. New PHEV vehicles of this type are generally delivered with delivery mileage only, but a pre-purchase inspection should confirm the precise odometer reading. It is worth noting that plug-in hybrid powertines such as the BYD DM-I system combine a petrol engine with a high-voltage battery and electric motor assembly, meaning that even relatively low-mileage use can place demands on the hybrid system, particularly if the vehicle is consistently run on electric-only mode with infrequent petrol engine warm-up cycles. Without mileage context, the mechanical implications of prior use cannot be objectively assessed from the records provided. In the absence of any advisory or failure history from MOT testing, specific components flagged on previous tests cannot be discussed. However, for any new or nearly-new PHEV SUV of this configuration, a prospective buyer should pay particular attention to the operation of the hybrid transition between electric and petrol propulsion, listening for any unexpected vibration, hesitation, or harsh engagement of the internal combustion engine. The brakes should be tested for smooth operation, as PHEVs can suffer from brake disc corrosion if the regenerative braking system is used predominantly and the friction brakes are applied infrequently, leading to surface rust formation on the discs and potential judder under pedal application. The high-voltage battery state of health and charging functionality should be verified, along with confirmation that the cabin and high-voltage systems are operating within normal parameters. On a physical inspection prior to purchase, attention should be directed toward the integrity of the charging port, cabling, and any warning messages on the driver information display. The tyres should be examined for even wear across both axles, as inconsistent front-to-rear wear can indicate alignment or suspension geometry issues. The steering should be checked for any pulling to one side under acceleration or braking, and the suspension should be assessed for knocking noises or excessive travel over uneven road surfaces, particularly from the front MacPherson strut assemblies commonly fitted to vehicles in this segment. Any warning lights relating to the hybrid system, emissions, or battery management should be investigated through diagnostic scanning before purchase, as these would not yet have been subject to an emissions or component check under the MOT framework.