What is the reason for the vibration and flameout of BMW 730 cold car start

When the car starts in a cold state, there is a phenomenon of jittering and stalling. It may be that the temperature of the car's engine oil is too low. Wait for the temperature to rise to an appropriate temperature and the jitter will disappear. If it causes stalling, you need to check the use status of the engine components.

The cold start of the car refers to starting the car when the engine water temperature is low. The cold start refers to the start-up process of the single-chip microcomputer from power-off to power-on. Before starting the car, it is necessary to check whether the battery shell has leakage of electrolyte. Replace the battery in time. If there is no leakage, hot water should be used to clean the oxides on the surface of the battery and the pole to prevent water from entering the inside of the battery from the vent pipe. If the engine speed gradually decreases, it means that the battery voltage is in a state of low power, and it needs to be charged in time. Pay attention to the detection and maintenance of the battery.