Why is there a sound when shifting from N to D gear in BMW 5 Series?

[LeKaden]

When shifting from D to N gear in the car, it should be the sound of gear engagement, which is why this kind of clicking noise occurs. This is a normal phenomenon. N gear: It is actually equivalent to the neutral gear in a manual transmission. When the N gear is engaged, the vehicle can coast. Generally, when waiting at a traffic light, some people prefer to shift to N gear to reduce the load on the engine and transmission. However, it is important to note that coasting in N gear is strictly prohibited for automatic transmissions, as it can have significant negative effects on the engine, transmission, and driving safety. Automatic transmission D gear: Also known as the drive gear, it is the most commonly used gear. When the vehicle needs to move forward, shifting to D gear will drive the vehicle forward. When the vehicle is in D gear, it can automatically adjust the corresponding gear based on the engine speed and load, maintaining the vehicle within the appropriate speed range.