2025 BYD Seal U Boost DM-I Phev Auto Hybrid electric (clean) · LL75 KAO

The vehicle has no recorded MOT test in the DVSA database, so there is no recent pass or fail to reference and consequently no trend in recorded maintenance performance can be established. The absence of any MOT data suggests either the car has not yet reached the point where a statutory test is required, or the test records have not been entered; in either case a definitive assessment of its service history cannot be drawn from official sources. Mileage for the 2025 BYD Seal U‑Boost DM‑i PHEV is not supplied, leaving the annual usage rate unquantified. As a two‑year‑old model, a typical UK driver would have accumulated between 10 000 and 20 000 mi, but without a figure it is impossible to judge whether the car has been lightly used, heavily driven or largely dormant. The lack of mileage data means the buyer must rely on physical inspection and service documentation to infer wear levels, particularly on components that are mileage‑sensitive such as brake discs, suspension bushes and tyre tread. Given the vehicle’s age and the absence of MOT or mileage records, the buyer should focus on time‑related wear. Inspect the tyre sidewalls for cracking, dry rot or age‑related hardening, remembering that rubber can deteriorate after six years regardless of tread depth. Examine the 12 V auxiliary battery for terminal corrosion and verify its state of charge; a weak battery will affect electronic systems and start‑up reliability. The high‑voltage traction battery should be checked for any service bulletins, warranty coverage and recent capacity testing, as degradation can be subtle but will affect electric‑only range. Verify that the coolant, brake fluid and engine oil have been replaced in line with the manufacturer’s calendar intervals – typically every two years for brake fluid and every four years for coolant – and look for any signs of leakage around the inverter, coolant hoses and the rear‑axle pump. On a test drive, listen for any clunk or squeak from the suspension, which could indicate worn bushings or deteriorated coil‑spring mounts, and feel for any pull or vibration that might betray uneven tyre wear or mis‑aligned steering geometry. Apply the brakes firmly and note any pulsation, shudder or excessive pedal travel that would point to warped discs, contaminated pads or binding calipers, especially after the car has been stationary for a period. Finally, engage the electric‑only mode and observe the transition between electric and hybrid propulsion; any hesitation, loss of power or warning messages should be investigated, as they may reveal software glitches or battery‑management issues that are not captured in a MOT record.