What happened when the BMW x 1 cold car turned off automatically after it started?

The reasons for the automatic flameout of BMW x 1 cold car after starting are circuit fault, short circuit and throttle fault.

Circuit fault:

That is, when driving, it was turned off because of low voltage.

Solution: mainly check the switch and fuse box of ignition and starter.

Low voltage line short circuit:

In this case, it is intermittent flameout.

Solution: Check the low-voltage circuit of the car.

Throttle fault:

Too much carbon deposit in throttle, idle motor, air intake, intake valve and combustion chamber will make the intake pipe wall rough, and the intake air will produce vortex in these rough places, which will affect the intake effect and the quality of air-fuel mixture, thus leading to flameout.

Solution: Replace the throttle valve with a new one.

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