2026 BYD Seal U Boost DM-I Phev Auto 1.5L Hybrid electric (clean) · GD75 WDG

The DVSA database shows no MOT record for the 2026 BYD Seal U‑Boost DM‑I PHEV, which is expected for a vehicle of this age as the first statutory MOT is not required until three years after the date of first registration. Consequently there is no test history from which to infer a maintenance trend, and the absence of any recorded failures or advisories simply reflects that the car has not yet been subjected to a formal MOT inspection. Mileage information is also unavailable, so no quantitative assessment of annual usage can be made. For a 2026 model the typical annual mileage for a private‑owner vehicle in the UK ranges between 7,000 and 12,000 miles; any figure substantially below or above this band would have implications for wear on tyre tread, brake components and the high‑voltage battery cycle count. In the absence of a recorded odometer reading the buyer should request the current mileage directly from the seller and compare it with the service book entries to verify that the vehicle has not been subject to excessive short‑trip usage, which can accelerate brake pad wear and reduce the effectiveness of the regenerative braking system. Given the lack of MOT data and the vehicle’s relatively recent manufacture, the prospective buyer should concentrate on a thorough visual and functional inspection that covers age‑related degradation as well as the specific requirements of a plug‑in hybrid electric vehicle. Examine the tyre sidewalls for any cracking, dry rot or uneven wear patterns that could indicate mis‑alignment or suspension issues; check the wheel bearings for play and listen for any humming or growling noises while the car is coasting. Verify that the 12 V auxiliary battery terminals are clean and that the high‑voltage pack shows no signs of swelling, coolant leaks around the battery cooling circuit or corrosion on the high‑voltage connectors. Ensure the charging port and cable are free of damage and that the on‑board charger indicator functions correctly during a brief charge cycle. Finally, confirm that the vehicle has a complete service history with stamps from an authorised BYD dealer, including any software updates to the power‑train control unit and the battery management system. Inspect the brake discs for surface rust or scoring, especially if the car has been stored for extended periods, and test the brakes for any pulsation or shudder that could indicate warped discs or uneven pad wear. Check all fluid levels – engine oil, coolant, brake fluid and windshield washer – and note the dates of the last changes; for a 2026 car these should be recent, but calendar‑based degradation can still occur if the car has seen long periods of inactivity. A functional test drive should include a brief electric‑only run, a hybrid acceleration, and a regenerative braking event to confirm smooth operation of the electric motor, inverter and regenerative system.