2025 BYD Seal U Boost DM-I Phev Auto Hybrid electric (clean) · SL75 CWR

No MOT history is available for this 2025 BYD SEAL U BOOST DM-I PHEV, which means there is no official DVSA test data to assess its roadworthiness trend. As a nearly new vehicle, it would not yet require an MOT, but the absence of any recorded defects or advisories suggests no statutory inspections have been conducted to date. Without prior test outcomes, the maintenance trend cannot be evaluated, so the buyer must rely on a thorough independent inspection and the vehicle’s service history. The recorded mileage is unknown, and with insufficient data to compare against the vehicle’s age, it is impossible to determine whether usage has been light, average, or excessive. For a 2025 model, mileage could range from minimal delivery miles to higher figures if used as a daily driver or company vehicle. A PHEV in particular may have seen varied usage patterns, with potential for battery and hybrid system wear if frequently charged or discharged. The buyer should verify the actual mileage and cross-check it with service records to ensure consistency. Given the lack of MOT history, the focus should be on a comprehensive pre-purchase inspection. Check for signs of standing corrosion, particularly on brake discs, calipers, and underseal, as low-mileage examples may suffer from lack of use. Inspect the 12V auxiliary battery health, as PHEVs rely on it for auxiliary systems, and a weak battery can cause hybrid system faults. Examine the tyres for sidewall cracking or perishing, which can occur even on low-mileage vehicles due to age-related degradation. Additionally, verify that all hybrid and plug-in charging systems are functioning correctly, with no error codes present in the vehicle’s diagnostic system. Finally, ensure that all time-based maintenance has been carried out, including fluid changes for the gearbox, differential, and cooling systems, as these can degrade regardless of mileage. Test drive the vehicle to check for smooth power delivery, regenerative braking consistency, and any unusual noises from the suspension or drivetrain. Listen for whining or grinding from the electric motors or transmission, and confirm that the battery holds charge as expected. A full diagnostic scan is essential to uncover any stored fault codes that may not be immediately apparent.