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故障现象一辆奔驰C200车,VlN码为LE42040415L******,装配M271发动机和722.6自动变速器,累计行驶里程约为11万km,客户反映起动发动机时,起动机运转,但发动机起动困难。故障诊断接车后首先试车,确认故障现象属实。经询问客户得知,该车为进水车,发动机也被水淹了,在其他修理厂解体发动机检查,发现4缸的连杆断了,汽缸体被连杆打烂,客户坚持要修复,修好后就出现发动机起动困难的现象。连接STAR-D做快速测试,只有后SAM中存储有电压低的故障代码。进入实际值,查看发动机运转数据,未见异常。连
Fault phenomenon A Mercedes C200 car, VlN code LE42040415L ******, assembly M271 engine and 722.6 automatic transmission, the cumulative mileage of about 110,000 km, the customer reflects the start of the engine, the starter running, but the engine start difficult . Troubleshooting After the first test car, confirm the fault phenomenon is true. Upon inquiry, the customer learned that the car was a water truck and the engine was flooded. After the engine repair was dismantled at other repair shops, it was found that the connecting rod of the 4-cylinder was broken, the cylinder block was broken by the connecting rod, the customer insisted on repairing, Repaired engine start difficult situation. Connect STAR-D to do quick test, only the fault code with low voltage is stored in SAM. Into the actual value, view the engine operating data, no abnormalities. even