Imported vehicles that arrive by port during the rainy season and are being prepared for delivery pass through multiple handovers during ocean shipping, port handling, and warehousing. The core judgment for dealers: electrical problems are mostly hidden in water ingress paths, and preserving evidence and retesting matter more than repair speed. Moisture, standing water, harness connections, and port waiting are not always visible at a glance; the arrival status, the treatment process, and the final result must all be tied to the VIN. The Nigerian Meteorological Agency is used to verify rainfall and weather information; port and import requirements should be confirmed separately with the corresponding competent authorities, and the PDI record is responsible for proving the vehicle's actual condition.
Document Evidence First on Handover; Prep Work Comes Later
Before a rainy-season handover, rehearse the evidence and isolation process. Photograph the waterline, glass fogging, lamps, and cabin moisture of arriving vehicles; if the site is not dry or the re-inspection conditions are incomplete, do not touch the electrical parts, so that fresh water ingress is not recorded as an old problem.
Check vehicle conformity information on the SON vehicle conformity assessment official page and adjust the inspection items when the version changes.
After Lifting, Inspect Along the Water Ingress Path
Trace the ingress path along door frames, carpet edges, harness connectors, and underbody drain points; once the source is found, dry and retest, and the release conclusion follows the records.
Use BYD Han L DM-p to align model names in communication, then record powertrain configuration, interfaces, software, and document scope in the procurement table.
Isolation, Drying, and Retest Record Sheet
Isolate moisture-affected vehicles first; record the drying duration, insulation, and electrical retests per vehicle, and keep a trace of who handled it, what changed, and the affected scope.
| Stage | Key records | Handling requirements |
|---|---|---|
| Evidence at port arrival | Waterline, glass fogging, lamps, and cabin moisture | Do not touch the vehicle before evidence is documented |
| Isolation and drying | Affected area, drying duration, dehumidification method | No disassembly without complete drying records |
| Electrical retest | Harness connections, insulation, sleep and wake | Re-check the cause after the warning is cleared |
| Delivery release | Current status vs. original evidence | No delivery while safety anomalies remain open |
Wake and Retest After Locking and Sleep
Wake the vehicle again after locking and sleep to confirm that warnings did not disappear only because codes were briefly cleared; until this state is completed, vehicles with the same type of unresolved issue stay isolated.
FAQ
After rain in the port area, should you wait for the vehicle to dry before inspecting?
Document evidence first, then wait for drying. Waterline and moisture photos must be taken before disassembly; run the electrical retest after drying is complete, because disassembling a wet vehicle mixes up the source.
How do you judge water ingress into a harness connector?
Look at water marks, corrosion, and connection traces inside the connector. Wiping the surface alone is not full treatment; confirm whether the warning truly stays away after drying.
Can clearing the fault code clear the vehicle for delivery?
Not by clearing codes alone. Wake the vehicle again after locking and sleep; only when the warning does not reappear and the cause is explained is the loop closed.
Which problems should block delivery?
When safety warnings, high-voltage insulation, or continuous water ingress are not explained, keep the vehicle isolated and out of the delivery queue.
To verify models, CIF quotes, and delivery documentation for the Nigerian market, Contact Starvia Automotive, or discuss procurement needs via WhatsApp: +1 669 292 8680.
This article is compiled from the Nigerian Meteorological Agency, SON vehicle conformity assessment public information, and general vehicle delivery principles. Specific PDI items should be determined according to the model, VIN, transport contract, and destination country requirements. Information verified on: 2026-08-19.