2025 BYD Seal U Comfort DM-I Phev Auto 1.5L Hybrid electric · FH75 BVB

As there is no DVSA MOT history available for this 2025 BYD SEAL U COMFORT DM-I PHEV, no formal pass or fail outcome can be cited or evaluated at present. Under standard UK roadworthiness procedures, a vehicle first registered in 2025 would not normally require an MOT test until it reaches three years of age, which means this platform is either newly registered, registered just outside the qualifying window, or the records have simply not yet been uploaded to the DVSA database. Without prior test data, it is impossible to assess whether the vehicle has demonstrated a stable, worsening, or improving maintenance trend, so any prospective buyer must therefore place greater emphasis on the physical condition of the car, its documented service history, and any manufacturer warranty support that may still be in force. The recorded mileage is described as unknown, and there is insufficient data to draw a meaningful comparison between the vehicle's age and its usage profile. As a 2025 model, the car is approximately one year old at the time of this assessment, meaning it has covered relatively little time on the road regardless of how it has been driven. For a PHEV of this age, the absence of a confirmed odometer reading warrants careful verification at the point of sale, including a check of the in-car display, any accompanying service invoices, and the V5C logbook, to ensure the figure is genuine and consistent. Buyers should be particularly mindful that plug-in hybrids can sometimes accumulate low mileage on the combustion side yet show higher readings on the electric side, or vice versa, so a thorough demonstration of both driving modes is advisable to confirm the powertrain is functioning as intended. Given the absence of an MOT history and the relatively young age of the vehicle, the practical inspection priorities shift towards time-based deterioration rather than wear-based failure. Tyres should be examined closely for sidewall perishing, cracking, or UV damage, as even lightly used tyres degrade chemically over time, particularly if the car has been left standing in sunlight. Brake discs and calipers can suffer from surface corrosion and binding when a vehicle is used infrequently, so the buyer should look for signs of uneven brake application, shudder under pedal pressure, or screeching noises indicating seized caliper slides or rust build-up on the disc faces. The 12V auxiliary battery, which powers the vehicle's control systems, should be tested for state of health, as modern vehicles with complex electronics are particularly sensitive to battery degradation, often presenting as random warning lights or starting issues. Finally, although the combustion engine in this PHEV may have seen limited use, all time-sensitive fluids should be reviewed, including the engine oil, coolant, brake fluid, and transmission fluid, as these degrade on a calendar basis regardless of mileage. Any evidence of fluid staining beneath the vehicle or evidence of weeping from the high-voltage cooling system, engine oil sump, or underbody should be investigated immediately, as PHEVs carry additional cooling demands for their battery packs that can lead to coolant hose and pump failures over time. The vehicle charging cable and port should be inspected for damage or scorch marks, and a live demonstration of both AC and DC charging functions should be requested. For complete peace of mind, a pre-purchase inspection by a qualified technician familiar with BYD vehicles, ideally one who can access the manufacturer's diagnostic system to read any stored fault codes, remains the most prudent course of action given the absence of any independent DVSA roadworthiness data.