What is the reason for the current sound after R ⅹ 5 shutdown and power failure?

1. It may be the sound of the sensor on the engine or the sound of the electronic throttle. I suggest you open the key first, and then turn it off and check it again. If there is still sound, go to the repair shop to check whether there is something wrong with the sensor or the wiring. 2. It may also be the sound of the exhaust pipe expanding with heat and contracting with cold. Listen to the gas in the exhaust pipe. If it is the sound produced by the expansion and contraction of the exhaust pipe, it is normal. Try not to turn off the engine immediately after parking, and wait for a while. If there is still a click after doing this method, you should go to 4S to check it. Hearing the sound of current is definitely an abnormal sound, so we must pay attention to it.