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故障现象一辆奔驰S63 AMG车,底盘号为WDD222178,装配型号为157的V形8缸发动机,行驶里程约为6 000 km。据驾驶人反映,该车左前门内把手处的照明灯闪烁,且仪表报警。故障诊断和排除接车后试车验证故障现象,故障确实存在,仪表上有关于辅助防护系统(SRS)的警示信息“左前侧故障请去特许服务中心”(图1)。分析认为,客户所反映的2个故障并没有关联,决定先排除仪表报警的故障。
Symptom A Mercedes S63 AMG car with a chassis number of WDD222178 and a V-shaped 8-cylinder engine with a model number 157 has a mileage of about 6,000 km. According to the driver, the car at the left front door handle at the flashing lights, and the instrument alarm. Fault diagnosis and troubleshooting After the car to test the phenomenon of failure, the fault does exist, the instrument on the auxiliary protection system (SRS) warning message “Left front side of the fault, please go to the Chartered Service Center ” (Figure 1). Analysis, the two customers reflected by the incident did not link, decided to rule out the instrument alarm failure.