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244 Driving and parking
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When one of the following systems is active,
the detected speed can be manually adopted
as the speed limit:
Active Distance Assist DISTRONIC
R
Cruise control
R
Variable limiter
R
%
Further information on speed adaptation
(
page 242).
/
▌Function of Active Stop-and-Go Assist
Active Stop-and-Go Assist helps you when in traf-
fic jams on multi-lane roads with separate road-
ways by automatically pulling away within up to
60 seconds and with moderate steering maneu-
vers. It orients itself using the vehicle in front and
lane markings. Active Stop-and-Go Assist auto-
matically maintains a safe distance from the vehi-
cle in front and vehicles cutting in.
Active Stop-and-Go Assist requires you, as the
driver, to keep your hands on the steering wheel
at all times so that you are able to intervene at
any time to correct the course of the vehicle and
keep it in lane.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recognize
dangers (
page 224).
/
Active Stop-and-Go Assist activates automatically
when all of the following conditions are met:
You are in a traffic jam on a highway or high-
R
speed major road.
Active Distance Assist DISTRONIC is activated
R
and active (
page 239).
/
Active Steering Assist is activated and active
R
(
page 248).
/
You are traveling no faster than 35 mph
R
(60 km/h).
When Active Stop-and-Go Assist is active the
¬ status display appears on the driver's dis-
play.
System limits
The system limitations of Active Distance Assist
DISTRONIC and Active Steering Assist apply to
Active Stop-and-Go Assist (
page 246).
/
DSR (Downhill Speed Regulation)
▌Function of DSR
DSR is an aid to assist you when driving downhill.
It keeps the speed of travel at the selected target
speed. The steeper the downhill gradient, the
greater the DSR braking effect on the vehicle. On
flat stretches of road and uphill gradients, the
DSR brakes the vehicle minimally or not at all.
When DSR is activated and the transmission is in
position h, k or i, DSR controls the driving
speed. The target speed can be set to a value
between 1 mph (2 km/h) and 11 mph (18 km/h).
By braking or accelerating, you can drive at a
higher or lower speed than the target speed at
any time.
If you drive faster than 28 mph (45 km/h) or
change the drive program (except in F), DSR
switches off automatically. The î
sage appears on the driver's display. The status
indicator on the driver's display goes out. You also
hear a warning tone.
Off
mes-
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