The distance can be set in 4 different stages.

Control lever for: Setting the distance

– Briefly press the sliding switch ⇒ fig. 142 once towards + or -. The display in the instrument cluster will briefly show the current distance setting.
– Press the sliding switch again towards + or - to increase or reduce the distance by one level at a time.

Choosing the distance

The adaptive cruise control system determines the distance to the vehicle in front by time intervals. It defines a time-based distance to the vehicle in front which is kept at a constant level. This converts to a distance which depends on the speed - the higher the speed, the higher the safety distance in metres ⇒ .

The actual distance maintained by the adaptive cruise control can be longer or shorter, depending on the traffic situation and the driving style of the driver in front.

Distance 1

This setting is suitable for brisk driving in a line of traffic. The time interval is 1 second. This is equivalent to (for instance):

• • A distance of 14 metres at a speed of 50 km/h
• • A distance of 36 metres at a speed of 130 km/h

Distance 2

This setting is suitable for relaxed “moving with the flow” in a line of traffic. The time interval is 1.3 seconds. This is equivalent to (for instance):

• • A distance of 18 metres at a speed of 50 km/h
• • A distance of 47 metres at a speed of 130 km/h

Distance 3

This (recommended) setting is suitable for relaxed “moving with the flow” in a line of traffic. The time interval is 1.8 seconds. This is equivalent to (for instance):

• • A distance of 25 metres at a speed of 50 km/h
• • A distance of 65 metres at a speed of 130 km/h

Distance 4

This setting is suitable for single-carriageway roads. The time interval is 2.3 seconds. This is equivalent to (for instance):

• • A distance of 32 metres at a speed of 50 km/h
• • A distance of 83 metres at a speed of 130 km/h

You can control the acceleration and braking response of your vehicle in adaptive cruise control mode by adjusting the settings on the sound system or MMI*gggggg 139. Depending on the driving program and distance selected, acceleration and braking response will range from dynamic (1) to relaxed (5).

WARNING

When setting the distance, the driver is responsible for adhering to the laws and regulations which apply in the country he is travelling in.