Use this guide to test whole-vehicle Song Plus approval without relying on model reputation or a seller's general description. Every conclusion should survive a change of reviewer.
Decide whole-vehicle Song Plus approval
Confirm VIN and ownership first, then inspect structure, paint, flood indicators, glass, tyres, brakes, suspension and battery enclosure. Select a DM-i or EV technical path rather than using one generic checklist.
Evidence for whole-vehicle Song Plus approval
Run a full-module scan, controlled road test and AC/DC charge session where supported. DM-i adds cold start, fluids, fuel, exhaust and hybrid transitions; EV adds motor, reduction gear and high-voltage behaviour.
Export and ownership exposure
Displayed range cannot prove capacity. Water exposure, underside impact, unmatched tyres, warning history or unreleased owner accounts can create expensive destination problems.
Apply the decision to a real candidate
Classify every finding as accept, repair, investigate or reject. Discounts do not close identity, structural, flood, isolation or unresolved high-voltage faults.
Build the VIN-linked record
The approval record should show what established vin and title, who reviewed structure and flood and which evidence supports battery diagnostics. List missing material explicitly; silence in a report is not a passed test.
Common approval mistakes
Avoid combining different years, markets or powertrains in one informal comparison. Do not turn “not checked” into “working,” and do not let a discount close uncertainty about dm-i or ev systems or software and keys.
Close the decision
Finish whole-vehicle Song Plus approval with a pass, hold or reject status. A hold must name the next action for structure and flood or dm-i or ev systems; a rejection should preserve the reason so the next shortlist does not repeat it. Approval means the buyer has consciously accepted any remaining limits, not that every uncertainty disappeared.
Independent review for whole-vehicle Song Plus approval
For whole-vehicle Song Plus approval, assign each approval field to a reviewer with the relevant competence. Record candidate evidence for vin and title, structure and flood, battery diagnostics, then obtain destination or commercial confirmation for charging test, dm-i or ev systems, software and keys where required. Every conclusion should identify its source, date and VIN. If two reviewers interpret a field differently, keep it open until the underlying document, photograph, diagnostic result or written third-party answer resolves the difference.
Arrival controls for whole-vehicle Song Plus approval
Before loading, freeze the accepted VIN, identity, condition, odometer, warning state, keys, accessories and unresolved exceptions. On arrival, compare those records before cleaning, repair, software changes or routine use. Recheck any open item involving charging test, dm-i or ev systems, software and keys, preserve evidence for a timely carrier or supplier claim, and update the ownership file with actual destination findings and costs.
Run a destination-fit test
Turn whole-vehicle Song Plus approval into a short written test before comparing sellers. State the destination, expected annual distance, normal passenger or cargo load, charging access and the maximum acceptable delay for parts or software support. Then test the candidate against vin and title, battery diagnostics and dm-i or ev systems. A feature has value only when it works in that operating context. This step prevents a lower purchase price from hiding a charging, registration or ownership constraint that appears after arrival.
Set the commercial hold points
Do not let the technical file and payment schedule move independently. The first hold point confirms identity; the second closes structure and flood; the third accepts inspection condition and charging test; the final one reconciles loading evidence with the contracted delivery boundary. Write the release evidence beside each milestone. If software and keys remains open, retain an appropriate reserve or keep the vehicle on hold until the exposure is priced.
Used BYD Song Plus Pre-Purchase Inspection: approval checklist
Mark each item confirmed, unresolved or rejected and retain its evidence under the candidate VIN.
- VIN and title
- Structure and flood
- Battery diagnostics
- Charging test
- DM-i or EV systems
- Software and keys
Buyer questions about whole-vehicle Song Plus approval
What is the first inspection step?
Match the vehicle, VIN labels and legal records.
Does dashboard range show battery health?
No. Use diagnostics, charging and condition evidence.
Should both AC and DC charging be tested?
Where safe and compatible, test the functions the buyer will rely on.