Mercedes-Benz GLA Series Operator's Manual page 176

174 Driving and parking
Take into account the road surface and
#
the difference between the driving
speed and target speed before activat‐
ing DSR.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recog‐
nize dangers ( page 161).
/
You are always responsible for keeping control of
the vehicle and for assessing whether the down‐
hill gradient can be negotiated. Depending on
road surface and tires, DSR may not always be
able to keep to the target speed. Select a target
speed suitable for the environmental conditions
and also apply the brakes yourself if required.
Activating or deactivating DSR (Downhill
Speed Regulation)
Requirements:
You are driving at 25 mph (40 km/h) or
R
slower.
If the current vehicle speed is too high, the
Max. Speed 24 mph message appears in the
multifunction display.
Active Distance Assist DISTRONIC is deacti‐
R
vated.
Multimedia system:
© Settings Quick Access
4 5 5
Select î.
#
A status display appears in the multifunction
display when the function is activated.
Changing the target speed
To increase/reduce the target speed:
#
press rocker switch 1 up M or down
N to the point of resistance.
The selected target speed increases or
decreases by 1 mph (1 km/h) and appears
along with the î symbol in the multifunc‐
tion display.
Active Distance Assist DISTRONIC
Function of Active Distance Assist
DISTRONIC
Active Distance Assist DISTRONIC maintains the
set speed on free-flowing roads. If vehicles in
front are detected, the set distance is main‐
tained, if necessary, until the vehicle comes to a
halt. The vehicle accelerates or brakes depend‐
ing on the distance to the vehicle in front and
the set speed. The speed and distance to the
vehicle in front are set and saved using the
steering wheel.
Available speed range:
Vehicles without Driving Assistance Pack‐
R
age: 15 mph (20 km/h) - 120 mph
(200 km/h)