The BMW throttle stuck for a short time.

Check whether the plug on the throttle is loose.

If the valve is loose, it will be stuck for a short time, and it may be unstable when idling. Throttle is a controllable valve that controls air to enter the engine. After the air enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, and the combustion is successful. It connects the air filter and the engine block, and is called the throat of the automobile engine.