VicHowell - China Automobile Expert-CNAUTO

Specific symptoms: 2008 BMW 525Li (E60) hot car idle jitter (pleasure car), engine and accompanied by a sharp whistle, cold car is normal, engine hot car idle speed about 650rpm, when the speed is 850rpm-1000 rpm, jitter is useless, whistle is still the same.Fault diagnosis: because a bottle of 3M carbon removal gasoline additive and 200 yuan of oil were added the day before the fault (at first, I thought it was caused by less gasoline, the proportion was too strong, and when I drove again, I went to add 200 yuan of oil to dilute it. The fault will still occur). Due to the maintenance of the car in Tuhu in the afternoon of the fault, the project changed the oil, machine filter, air filter. Air conditioner filter and gearbox oil and oil pan, go to Tuhu store to find out if it has anything to do with maintenance. When the store manager heard the whistle, he said that the exhaust valve on the valve cover was blocked, and it was with the valve cover assembly. I’m going to change it t...

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Const machinery & Agro equipment

Fault diagnosis and elimination of idle jitter in 2008 BMW 5 Series 525Li (E60) hot car

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