m gear, \"m\" represents an increase in gear, \"m-\" represents a decrease in gear. M1, M2, and M3 on the instrument represent 1, 2, and 3 gears in hand mode.
When is the M file used
1, overtaking: Change to manual M gear, by reducing the gear to 1, you can achieve fast overtaking, the effect is much faster than D gear deep accelerator.
2, uphill: some steep slopes or the underground garage that everyone is most afraid of (generally steep), if it is a D-gear uphill car may not be locked in 1 gear, after all, the computer is based on the vehicle's driving speed at that time to judge the lift gear. With M gear locked in 1 or 2, it's much easier for the vehicle to go uphill.
3, downhill: Some people like to use D gear, and then step on the brake way downhill, in a short and slow slope this is no problem. Encounter a long and steep slope, it is necessary to switch M gear, the gear is adjusted to 1 or 2, the use of the engine's check effect on the vehicle brake, while reducing the pressure of the brake pads, D gear downhill for a long time the brake will burn red brake pads and wheels, not only affect the life of the parts, serious will completely lose braking efficiency and safety accidents.