WARNING
If the engine power and engine braking effect is insufficient to maintain
the set speed, steering must be taken over!
Operating Description
Fig. 97
Operating lever: Cruise control
system controls
Read and observe on page 104 first.
Overview of the control elements of the GRA » Fig. 97
A
Deactivate GRA (delete stored speed)
Interrupt control (sprung position)
Activate ACC (control deactivated)
B
Take control again
a)
/ Increase speed
C
Launch control / reduce speed
a)
If no speed stored, the current speed is adopted.
After starting the system, the current speed is stored and the instrument clus-
ter lights up the indicator light
on.
After the interruption in control, the stored speed can be resumed by pressing
the
B
button.
Automatic control interruption
Automatic control interruption occurs if any of the following conditions are
met.
›
By pressing the brake or clutch pedal.
›
When one of the brake assist systems (e.g. ESC) intervenes.
›
Through an airbag deployment.
WARNING
■
Always deactivate the cruise control system after use to prevent the sys-
tem being switched on unintentionally.
■
Control may only be resumed if the stored speed is not too high for the
current traffic conditions.
Note
During control, speed can be increased by pressing the accelerator pedal. Re-
leasing the accelerator pedal will cause the speed to drop again to the set
speed.
START-STOP
Introduction
This chapter contains information on the following subjects:
Operating conditions of the system
106
Operation in vehicles with manual gearbox 106
Operation in vehicles with automatic gearbox 106
System related automatic start-up 107
Manually deactivating/activating the system 107
Information messages 107
The START-STOP system (hereinafter referred to as the system) saves fuel and
reduces polluting emissions and CO
2
emissions by turning the engine off, e.g.
when stopping at traffic lights, and starting the engine again when moving off.
WARNING
■
Never let the vehicle roll with the engine switched off.
■
The brake servo unit and power steering only operate if the engine is run-
ning.
105
Assist systems