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Driver assist systems
determined by, amongst other things, the difference between the downhill speed
control set speed (if set) and the cruise control set speed. Outside this window EcoRoll
switches itself off.
The greater the difference in the set speeds of downhill speed control and cruise
control, the greater the EcoRoll fuel savings.
Furthermore, EcoRoll is switched off by any action either by the driver or by the
vehicle's electronic systems. Examples of such actions are the driver using a brake
function or the activation of downhill speed control. After braking by the driver, EcoRoll
will not be engaged again on the same slope.
NOTE: When EcoRoll is engaged, the 'selected gear' warning indicator on
the tachometer display switches to 'N' and the engine speed drops to idle.
Under specific circumstances (for example, continuous downhill or uphill driving) the
EcoRoll function might not be desired.
In this situation the EcoRoll function can be deactivated in the 'settings' master display
menu under 'speed control'.
After the contact is switched off and on, the EcoRoll function is automatically activated
again.
NOTE: Deactivating the EcoRoll function increases the fuel consumption.
8.8 FORWARD COLLISION WARNING (FCW)
8.8.1 Forward Collision Warning (FCW)
Vehicles equipped with Adaptive Cruise Control (ACC) also have Forward Collision
Warning (FCW).
FCW is engaged automatically when the vehicle speed exceeds 15 km/h (9 mph).
Unlike the ACC, the FCW cannot be switched off.
FCW generates an acoustic signal (radio is muted) and a warning on the master display
when the distance to the object ahead of the vehicle cannot be maintained by normal
braking.
WARNING! When an FCW is issued the driver must immediately take
over control of the vehicle.
Depending on the situation by for example braking the vehicle using
the vehicle's brakes.
DW63246305.book Page 267 Friday, March 22, 2019 4:54 PM
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