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1 故障发生经过一辆98款奥迪200 1.8T乘用车(车辆识别码为WAUZZZ447WA002485),其行程达9万km时,机油压力报警灯亮,且废气涡轮增压器内短时有异响,并立即感到车辆动力不足,液压挺柱异响加大。修理工起初的怀疑是机油泵故障导致供油不足,但更换了机油泵后,液压挺柱异响消失,排气管却大量冒蓝烟。检查中冷器到节气门体处的软管,发现没有增压气流喷出,判定废气涡轮增压器损坏。更换新的废气涡轮增压器和润滑油管后,故障排除。
1 Failure occurs after a 98 Audi 200 1.8T passenger car (vehicle identification code WAUZZZ447WA002485), the trip up to 90,000 km, the oil pressure alarm light, and the exhaust turbocharger short-term abnormal sound and Immediately feel the lack of vehicle power, hydraulic tappet abnormal noise increases. The original suspicion of the mechanic was that the oil pump malfunction caused the oil shortage, but after the replacement of the oil pump, the hydraulic tappet noise disappeared and the exhaust pipe was largely blue smoke. Check the intercooler to the throttle body at the hose and found no pressurized air jet to determine the exhaust gas turbocharger damage. After replacing the new exhaust turbocharger and lube tube, troubleshooting.