故障现象一辆新款奔驰C200车,底盘号为LE4205142,装配274发动机,搭载智能互联系统,行驶里程约为1.8万km,客户反映智能互联系统不可用。故障诊断接车后试车验证故障,接通点火开关起动发动机,发动机顺利起动,仪表盘上无任何报警提示,智能互联系统的3个按钮指示灯正常(如果智能互联系统有故障,会出现红色指示灯闪烁的故障现象)。经询问客户得知,在使用智能互 Trouble phenomenon A new Mercedes-Benz C200 car chassis number LE4205142, assembly 274 engine, equipped with smart Internet system, mileage is about 18,000 km, the customer reflects the Intelligent Internet system is not available. Fault diagnosis After the test car to verify the fault, turn the ignition switch to start the engine, the engine started smoothly, no alarm on the dashboard, intelligent interconnection system 3 button light is normal (if the smart interconnection system is faulty, there will be a red indicator Light flashing phenomenon). After asking the customer to know that the use of intelligent mutual