BMW Z4 Roadster Owner's Handbook Manual page 261

3. Adjust the speed by braking as necessary.
System limits
The function is not available in the following sit‐
uations:
▷ The speed is below 50 km/h, approximately
30 mph.
▷ With a temporary and variable speed limit,
such as at road works.
▷ With inadequate quality of the navigation
data.
▷ With Active Cruise Control.
Coasting
Principle
The engine is automatically disconnected from
the gearbox in selector lever position D under
certain circumstances. The vehicle continues to
roll in idle to reduce consumption. Selector lever
position D remains engaged.
This vehicle condition is called coasting.
As soon as the brake or accelerator pedal is
pressed, the engine is automatically connected
again.
General
Coasting is a component of the ECO PRO drive
mode and the COMFORT drive mode.
Coasting is automatically activated by calling up
the ECO PRO drive mode or COMFORT drive
mode via the drive experience switch and cannot
be deactivated.
A precautionary driving style helps to use the
function frequently and supports the consump‐
tion-reducing effect of coasting.
Operating requirements
The function is available in the speed range from
approx. 25 km/h, 16 mph to 160 km/h, 100 mph.
Online Edition for Part no. xxx - X/18
Saving fuel
The function is active if the following conditions
are met:
▷ System detects a calm and smooth driving
style.
▷ Accelerator pedal not pressed.
▷ Brake pedal not pressed or only pressed
lightly.
▷ Selector lever in selector lever position D.
▷ Engine and gearbox are at operating temper‐
ature.
▷ System does not detect any vehicles ahead
of you.
▷ With the route-ahead assistant: the system
does not detect any obstructive traffic situa‐
tions or routes.
▷ Active Cruise Control with Stop&Go function,
ACC, not activated.
Operation via shift paddles
Principle
The coasting state can be controlled using the
shift paddles.
Activating, deactivating coasting
using shift paddles
1. Pull the right-hand shift paddle to shift to the
top gear.
2. To activate coasting mode, actuate the right-
hand shift paddle again.
Actuate the left-hand shift paddle to deactivate.
Display
ECO PRO driving mode: Display in
the instrument cluster
The route covered in coasting mode is dis‐
played.
Display on the Control Display
The coasting drive state is shown in the energy
flow display during the journey.
DRIVING HINTS
261