车型:E84,配置N52发动机。行驶里程:117246km。故障现象:客户反映每天停车一晚上可以看到车的下面有很多油。来店后技师将车辆举升起来检查,发现发动机油底壳上有机油流出(如图1所示)。检查发动机上部发现气门室盖也有渗油。故障诊断:更换气门室盖垫和油底壳垫后,将发动机清洗干净后试车30km未发现有漏油痕迹,此时以为车辆已经维修好将车辆交给客户。客 Model: E84, equipped with N52 engine. Mileage: 117246km. Symptoms: customers reflect a day parking every night you can see the car has a lot of oil below. After the store technician to lift the vehicle to check and found that there is oil on the engine oil pan outflow (Figure 1). Check the upper engine found that the valve chamber cover also has oil leakage. Troubleshooting: Replace the valve cover pad and oil pan pad, the engine clean after 30km test run did not find traces of oil leakage, this time that the vehicle has been repaired to the vehicle to the customer. customer