Most automatic models are now with S file, generally used for overtaking, uphill, downhill, wading time will hang, also known as automated manual depot.

Automatic models of the S block is Sport (sports) gear referred to, as the name suggests is the power mode. After hanging the most direct feeling is become very sensitive throttle response, the speed will increase, along with higher noise, so you have a more aggressive driving feel, of course, fuel consumption will be relatively increased.

I tell you this to tell you "principle and the role of S gear" and "proper use of S gear"

1, the working principle and the role of S file

S position is an engine control unit by the ECU, the transmission control unit TCU has been particularly provided in the software, it has reached more power profile different from D and the acceleration feeling. For example: In the same 30?tep-throttle, the D range, the engine intake valve is opened 50?In the S position, the engine intake valve is opened 60?theoretically, the more the intake air, the more fuel injection. Natural, more powerful! Further, the stopper S into the computer hanging shift logic will change, an upshift will be more later, also in exchange for a stronger sense of acceleration.

2, S file proper use

As noted above, because the next S-speed, fuel injection volume, this way, the car's fuel consumption will certainly increase at high speed, although you can instantly speed, however, will bring long delays upshift or a transmission greater load, which would wear to the transmission. Therefore, if instant power enhancement and to be briefly engaged gear S, for example uphill and overtaking.

On steep slopes and large slope when you can use. On steep slopes when using the S-speed and low down, so that the car can get more traction, of course, be determined according to the time Pei inclination.

Using the continuous downhill and dropped low speed, using the engine brake, to prevent overheating of the brakes, brake failure occurs to prevent thermal decay.

Do not use the N range neutral slide! ! !

In the first to enter the water before the speed of the vehicle down, put down to the same low speed S, Meng not stable H-throttle refueling to prevent splash sucked into the engine to cause the vehicle to turn off.

Do not shift or sudden sharp turns, straight ahead as far as possible to look a little further, the wiper opening to prevent spray block the view, through the water holding low speed, without on next passage of the car, the brake continues to place the brake the system had become dry and then with normal