2025 BYD Seal U Comfort DM-I Phev Auto Hybrid electric (clean) · SD75 KAJ

The latest DVSA MOT test outcome for this 2025 BYD SEAL U COMFORT DM-I PHEV cannot be determined from the records provided, as no MOT test history is currently available on file. As the vehicle is registered in 2025, it will not become eligible for its first compulsory MOT test until three years after first registration, meaning a complete absence of MOT data is entirely expected for a nearly new example of this model rather than a cause for immediate concern. Because there are no historical pass or fail entries against which to gauge a maintenance trajectory, it is impossible to evaluate whether mechanical condition is improving, stable, or deteriorating over time. Any prospective buyer should therefore look to alternative verification routes, including the dealership service history, warranty documentation, and any manufacturer recall completion records, as these will substitute for the absent DVSA data during the early life of the vehicle. As recorded mileage data is unavailable, it is not possible to compute an annual mileage rate or to identify any patterns of low usage, extended standing periods, or rapid accumulation that might influence mechanical condition. In the absence of odometer readings, a physical inspection of high-wear components such as tyres and brake pads becomes especially important, as the actual wear state will be the only reliable indicator of how the vehicle has been used. Where mileage is genuinely low or the vehicle has stood for prolonged periods, particular attention should be directed towards brake disc surface corrosion, potential caliper seizure from inactivity, and any evidence of moisture ingress or rodent damage within the engine bay and undertray areas. For a 2025 plug-in hybrid that has likely covered relatively few miles, the buyer should prioritise a thorough pre-purchase inspection focusing on age-related deterioration rather than wear. Tyres should be examined closely for sidewall perishing and cracking, as even unworn tyres degrade chemically after several years and replacement may be required irrespective of tread depth. The 12V auxiliary battery should be load-tested, as these typically fail after three to five years regardless of mileage, and the high-voltage traction battery state of health should be verified through diagnostic interrogation at a BYD-authorised service centre. Coolant, brake fluid, and transmission fluid should be checked for time-based degradation, as calendar-aged fluids lose effectiveness even on low-mileage vehicles. On a test drive, the buyer should listen carefully for any suspension clunks or knocks over uneven surfaces, which could indicate worn bushes, top mounts, or coil springs, and should test the regenerative and friction braking systems for any pulling, vibration, or shudder that might suggest binding calipers or warped discs from standing. The PHEV powertrain should be assessed for smooth transitions between electric and hybrid modes, with any warning lights, error messages, or unusual hesitation noted as warranting further diagnostic investigation. Finally, confirmation that all manufacturer software updates have been applied, that the charging system functions correctly, and that any outstanding warranty work has been completed will provide additional confidence in the mechanical integrity of this BYD SEAL U given the absence of DVSA test history.