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The GAP downhill travel aid adds the following function to the cruise control: When the cruise control is switched on, the
driving speed of the vehicle is automatically maintained without the gas or brake pedals having to be used.
The “Downhill cruise control GAP” function allows for individual adjustment of the activation of the engine brake and the
intarder over a variable speed threshold between +2 – +10 km/h , compared to the setting of the speed of the cruise
control. This makes it easier to utilise the kinetic energy of the vehicle in order to optimise fuel consumption when:
▪ the vehicle is driving downhill.
▪ the cruise control function is active.
The steering wheel buttons can be used to change the speed limit value (variable between +2 – +10 km/h) for the
“Downhill Cruise Control GAP” function:
▪ The (2) “SET+” rocker switch is used to increase the activation threshold for the engine brake and intarder in comparison
to the driving speed set with cruise control.
▪ The (4) “SET–” rocker switch is used to reduce the activation threshold for the engine brake and intarder in comparison
to the driving speed set with cruise control.
The speed threshold value can be changed while the engine is running. The selected speed value is shown above the value for
the set speed (3).
DOWNHILL TRAVEL AID GAP (FOR CRUISE CONTROL)
NOTE: Once the engine is switched off, the last set speed is saved and then used as a reference
the next time the vehicle is started.
The set speed value for Downhill Cruise Control GAP is limited if the set totals for the speed of
the cruise control and Downhill Cruise Control GAP exceed 95 km/h!
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