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故障现象一辆2007年1月产上海大众帕萨特领驭1.8T自动挡带天窗版轿车(采用BGC发动机),已累计行驶约6.5万km。车主反映,该车在行驶过程中,右前车门玻璃有时会突然自动下降,如果将轿车停放在阳光下且环境温度达到30℃以上,接通点火开关时,右前车门玻璃亦会突然自动下降。在故障出现时,车主使用驾驶人侧车门上的右前车门电动摇窗机开关控制右前车门玻璃动作无效。故障诊断首先验证故障现象。经试车检查,未出现车
Fault phenomenon A January 2007 production of Shanghai Volkswagen Passat Passat 1.8T automatic with a skylight version of sedan (using BGC engine), has accumulated about 65,000 km travel. Owners reflect the car during driving, the right front door glass sometimes automatically and suddenly dropped, if the car parked in the sun and the ambient temperature reaches above 30 ℃, turn the ignition switch, the right front door glass will automatically fall. In the event of failure, the owner uses the driver’s side door on the right front door electric window machine switch to control the right front door glass action is invalid. Troubleshooting First verify the symptoms. After the test car, there is no car