Group 1 - The core issue involves two quality incidents reported by Li Auto regarding the 2024 MEGA vehicles experiencing coolant leakage and the 2025 L series vehicles having lower arm bushing noise complaints [1] - For the coolant leakage incident, three main causes were identified: insufficient coolant verification, inadequate battery testing and leakage risk assessment, and improper risk evaluation and user vehicle handling by relevant departments [1] - The company has taken accountability measures against employees involved, including contract termination for direct staff and performance penalties for their managers [1][3] Group 2 - The L series 2025 model's lower arm bushing noise issue was attributed to insufficient grease testing, leading to significant user complaints and negatively impacting customer experience [1]