BMW 3: Cruise control

Concept

Using this system, a desired speed can be adjusted using the buttons on the steering wheel.

The system maintains the desired speed. The system accelerates and brakes automatically as needed.

General information

Depending on the vehicle setting, the cruise control settings may change under certain conditions.

For instance, acceleration can change depending on the driving mode.

Safety information

Warning The system cannot serve as a substitute for the driver's personal judgment in assessing the traffic conditions. Based on the limits of the system, it cannot independently react to all traffic situations. There is a risk of accident. Adjust driving style to traffic conditions. Watch traffic closely and actively intervene where appropriate.

Warning The use of the system can lead to an increased risk of accidents in the following situations, for instance:

• On winding roads.
• In heavy traffic.
• On slippery roads, in fog, snow, or wet conditions, or on a loose road surface.

There may be a risk of accident or risk of damage to property. Only use the system if driving at constant speed is possible.

Warning The desired speed can be incorrectly adjusted or called up by mistake. There is a risk of accident.

Adjust the desired speed to the traffic conditions. Watch traffic closely and actively intervene where appropriate.

Overview

Buttons on the steering wheel

Cruise control on/off.

Continue cruise control with the last setting.

Pause cruise control.

Store current speed.

Speed Limit Assist: take over suggested speed manually.

Rocker switch: Set speed.

Switching cruise control on/off

Switching on

Depending on the equipment version, press the relevant button on the steering wheel.

The indicator lights in the instrument cluster light up and the marking on the speedometer is set to the current speed.

Cruise control is active. The current speed is maintained and stored as desired speed.

DSC Dynamic Stability Control is switched on, if necessary.

Switching off

Depending on the equipment version, press the relevant button on the steering wheel.

The displays go out. The stored desired speed is deleted.

Pausing cruise control

Interrupting manually

When active, press the button.

Interrupting automatically

The system is automatically interrupted in the following situations, for example:

• When the driver applies the brakes.
• Steptronic transmission: when selector lever position D is disengaged.
• Dynamic Traction Control DTC is activated or DSC Dynamic Stability Control is deactivated.
• If DSC Dynamic Stability Control intervenes.
• When SPORT PLUS is activated with Driving Dynamics Control.

Setting the speed

Maintaining and storing the speed

Press the rocker switch up or down once while the system is interrupted.

When the system is switched on, the current speed is maintained and stored as the desired speed.

The stored speed is displayed on the speedometer.

DSC Dynamic Stability Control is switched on, if necessary.

The speed can also be stored by pressing a button.

Press the button.

Changing the speed

Press the rocker switch up or down repeatedly until the desired speed is set.

If active, the displayed speed is stored and the vehicle reaches the stored speed when the road is clear.

• Each time the rocker switch is pressed to the resistance point, the desired speed increases or decreases by 1 mph/1 km/h.
• Each time the rocker switch is pressed past the resistance point, the desired speed changes by a maximum of 5 mph/10 km/h.

  The maximum speed that can be set depends on the vehicle.

• Pressing the rocker switch to the resistance point and holding it accelerates or decelerates the vehicle without requiring pressure on the accelerator pedal.

  After the rocker switch is released, the vehicle maintains its final speed. Pressing the switch beyond the resistance point causes the vehicle to accelerate more rapidly.

Continuing cruise control

An interrupted cruise control can be continued by calling up the stored speed.

Make sure that the difference between current speed and stored speed is not too large before calling up the stored speed. Otherwise, unintentional braking or accelerating may occur.

Press the button with the system interrupted.

Cruise control is continued with the stored values.

In the following cases, the stored speed value is deleted and cannot be called up again:

• When the system is switched off.
• When drive-ready state is switched off.

Displays in the instrument cluster

Display in the speedometer

• Green marking: system is active, the marking indicates the desired speed.
• Grey marking: system is interrupted, the marking indicates the stored speed.
• No marking: system is switched off.

Indicator light

• Indicator light green: system is active.
• Gray indicator light: the system has been interrupted.
• No indicator light: system is switched off.

Displays in the Head-up Display

Some system information can also be displayed in the Head-up Display.

The symbol is displayed when the set desired speed is reached.

System limits

The desired speed is also maintained downhill.

The speed may not be maintained on uphill grades if the engine power is insufficient.

In ECO PRO driving mode, the vehicle may exceed or drop below the set desired speed in some situations, for instance on downhill or uphill grades.

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