Experience turbo lag and power surge during road tests; check for significant oil accumulation at the turbo intake and intercooler connections (slight oil vapor is normal); and use OBD to read the real-time boost pressure peak to see if it meets factory settings.

We can purchase the hardware (diagnostic device) on your behalf. However, the original online diagnostic accounts (especially those involving anti-theft programming and module matching) have strict domestic IP location and real-name authentication restrictions, making it very difficult to log in stably from overseas for a long time, and we cannot guarantee technical support for this.

Handling claims with an overseas exporter works best when expectations are set before payment. Prevention: put the inspection standard, photo/video evidence requirements, and a dispute clause into the sales contract. Keep all chat records and payment receipts. Typical process if issues arise: 1) Notify the exporter within 48-72 hours of delivery with photos/videos as evidence. 2) Most disputes fall into two buckets: shipping damage (handled via marine insurance — this is why insurance matters) or undisclosed mechanical defects (handled per contract, often via partial refund, spare parts, or repair cost sharing). Realistic expectations: exporters rarely accept returns, so negotiate compensation instead. A reputable company will usually cover reasonable repair costs for defects confirmed to pre-exist shipment. Tip: for higher-value cars, hire a local third-party inspection at destination as final evidence — it strengthens any claim significantly.