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2022 BMW 535Lem Sport Package, two sides of the metal parts have been repainted, Dr. Cha's S-Class inspection report included. Full car paint protection film applied. 60,000 km odometer, 50,000 RMB down payment. Contact us directly for even bigger discounts!
We use two steps: 1. Insert a medical-grade endoscope through the spark plug hole to visually inspect cylinder wall scratches and carbon buildup on the piston top; 2. Extract an engine oil sample to check for large metal debris or emulsification (caused by coolant leakage).
It does not affect basic driving and regular speed cruise, but it will trigger a fault alert for advanced driver assistance on the dashboard. The LiDAR assembly is extremely expensive, so we focus on checking the integrity of the glass cover with a strong flashlight during inspections.
As long as the scratches do not damage the aluminum battery pack casing and do not cause structural dents in the crash beam, we will document it in the inspection report as "Surface Scuff" and no replacement will be made.
