What is the difference between the D gear and S gear in the Passat?
1 Answers
D gear is the regular automatic gear position, which shifts up automatically when the RPM reaches around 2000. S gear enhances power by delaying gear shifts and increasing RPM, typically shifting up around 4000 RPM, similar to driving in manual mode without shifting gears and stepping on the accelerator. It is generally used for overtaking. Specific details are as follows: 1. Automatic transmission cars: Automatic transmission cars use an automatic transmission to regulate speed. While driving, the control system of the automatic transmission automatically selects the appropriate gear based on the engine's RPM and load, replacing the driver's subjective judgment of timing and gear shifting. 2. Mechanical clutch: Automatic transmission cars usually use a hydraulic transmission device to replace the mechanical clutch in manual transmission cars, so there is no clutch pedal. When the engine RPM is low, the torque transmitted by the fluid is limited and insufficient to propel the car forward.