2025 BYD Seal Excellence EV AWD Electric · YF75 JXT

The DVSA records show no MOT history for the 2025 BYD Seal Excellence EV AWD, which is unsurprising given that the vehicle is only one year old and, under current UK regulations, will not be required to undergo its first MOT until it reaches three years of age. Consequently there is no test data from which to infer a maintenance trend; the absence of a record simply reflects the vehicle’s youth rather than any indication of neglect or improvement. Mileage for this vehicle has not been disclosed, so an assessment of annual usage rates cannot be quantified. A typical EV of this class might be expected to log between eight and ten thousand miles per year, but without a recorded figure it is impossible to tell whether the car has been driven heavily, lightly, or largely stored. Low or intermittent use can accelerate tyre perishing, allow brake discs to develop surface rust, and, in extreme cases, lead to electrolyte drying in the high‑voltage battery’s thermal‑management system, while high mileage would place greater wear on the drivetrain, suspension bushes and tyre tread. For a prospective buyer the first priority is a comprehensive battery health check. Request a diagnostic read‑out from a BYD‑approved service centre that includes state‑of‑charge capacity, internal resistance and any fault codes; a healthy pack should retain at least 90 % of its original capacity after twelve months. Inspect the charging inlet and cable for signs of corrosion, loose pins or damaged seals, and verify that the vehicle’s on‑board software is up‑to‑date, as BYD frequently releases firmware to optimise battery management and regenerative braking. Examine the tyre sidewalls for cracking, dry rot or age‑related hardening—look for the four‑digit DOT code to confirm the tyres are not older than three years, and ensure tread depth is even, as uneven wear can reveal worn suspension bushings or misaligned steering components. While EVs have fewer moving parts, the conventional brake system still requires attention; check the discs for surface rust, especially if the car has been stationary for long periods, and confirm that the pads have sufficient material and that the pedal feels firm without any pulsation that might indicate warped rotors. Finally, a visual inspection of the under‑body for any corrosion, especially around the battery pack mounting points and chassis rails, is advisable even on a relatively new model, as early exposure to road salt can accelerate rust formation. Verify that all safety interlocks—such as the high‑voltage disconnect and cabin‑door warning lights—operate correctly, and that the HVAC system delivers both heating and cooling, which indicates the coolant circuit is intact. Request any available service book stamps or digital service history to confirm that routine items such as coolant replacement for the battery thermal‑management system and brake fluid flush have been performed according to BYD’s schedule. A pre‑purchase inspection by a technician experienced with electric drivetrains will provide the most reliable assurance of roadworthiness before committing to purchase.