Used BYD Sealion 7 Inspection Checklist

Match all VIN locations, production label, configuration, odometer and documents. Photograph the whole car and keys. Stop if the identity chain is inconsistent; condition findings cannot support a vehicle that has not been identified.

Measure paint systematically, inspect panel gaps, glass and lamps, then examine rails, pillars, welds, suspension points and repair seams. Distinguish a cosmetic repaint from damage that affects structure, alignment, sealing or battery protection.

Use safe lifting procedures and record scrapes, dents, corrosion, fasteners, covers, coolant or fluid traces and impact near the integrated battery structure. Do not drill, pry or open high-voltage components. Escalate suspicious damage to a qualified EV specialist.

Scan all modules before clearing faults. Record high-voltage isolation, pack temperatures, cell balance where available, charge history and active or stored codes. Perform a documented AC or DC session and investigate interruption or thermal warnings.

Check steering, braking, suspension, vibration, noise, acceleration, regeneration, climate, cameras and driver assistance under safe conditions. Record tyre brand, size, load/speed rating, date and tread across all corners, especially on AWD configurations.

Classify findings as safety-critical, compliance-related, use-limiting, maintenance, cosmetic or untested. Add evidence, remedy, responsible party and cost allowance. Never replace a clear report with “good condition,” and repeat affected checks after repair.

Close this specific file by placing complete identity set, paint and structural map and underbody/battery enclosure images in one dated candidate record. The reviewer should be able to confirm that high-voltage work is left to qualified staff and that fault codes are saved before clearing. Name the person or provider responsible for every unresolved point, add a realistic cost or consequence, and state what evidence will change the decision. If the VIN, version, condition or destination basis changes, reopen this file instead of carrying the previous conclusion into a different purchase.

A useful decision records what is verified, what remains seller-stated and what was not tested. Attach a consequence and owner to each open item. Do not let a broad assurance replace a missing VIN record, charge test, condition image or destination opinion. Acceptance should be explicit: proceed, proceed with a priced condition, obtain more evidence, or reject. A replacement VIN never inherits an earlier acceptance.

Give images, scans, diagnostics and quotations a date, source and vehicle identity. Preserve originals before translation or editing. If custody, software, repair, route or candidate changes, identify which conclusions expire and repeat the affected checks instead of silently carrying them forward. Before inland release, read the same identity, propulsion, value and parties across contract, invoice, inspection and shipping drafts. Registration and customs remain separate destination checks.