First-hand car; left rear fender and left rear door repainted.
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).
Most basic maintenance reminder lights (like for changing the air conditioning filter) can be manually cleared using a combination of steering wheel buttons or through the engineering mode on the central control screen. We will provide internal guidance manuals for these hidden operations to our B2B clients.
Our foreign versions of the report standardize terminology and include illustrations. For example, instead of just writing "control arm failure," we specify "Lower Control Arm Bushing Torn" to help your local technicians identify the issue directly.
