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2001年夏,一辆奥迪100乘用车(化油器式发动机、手动变速器)车主和某修理厂厂长来我处,要求帮助分析该车“化瓦”的原因。车主称,该车总共行程不到6万km,发动机技术状况良好,平时跑200～300 km都看不出机油消耗。这次去青岛前检查了机油,符合规定容量,但仅行驶300 km多即跑干了机油,造成4道连杆轴承全部烧坏。因该车平时的维护和小修都定点在该厂,故车主怀疑该厂在维修某项作业上出了质量(品质)问题。修理厂厂长说,平时只给该车换过“三滤”或进行过小的调修,没修过发动机内部,不可能是承修方的责任。经仔细询问,双方都承认,发动机不漏机油也不烧机油,机油品质符合该机型要求,
In the summer of 2001, an Audi 100 passenger car (carburettor-type engine, manual transmission) owner and a repair shop manager came to me to ask for help to analyze the reason why the car was “wattled.” Owners said the car a total of less than 60,000 km trip, the engine technology in good condition, usually run 200 ~ 300 km can not see the oil consumption. The inspection of the oil before going to Qingdao, in line with the provisions of capacity, but only running more than 300 km that run dry oil, resulting in all four-link bearing burn. Because the car usually maintenance and minor repairs are fixed in the factory, so owners suspect the factory in the maintenance of a job out of quality (quality). Repair plant manager said that usually only to the car replaced the “three filter” or minor repairs, did not repair the engine internal, can not be the responsibility of the repairer. After careful inquiry, both sides acknowledged that the engine does not leak oil nor burn oil, oil quality in line with the requirements of the model,