Page 186 of 506

RIfth e lane markings change quickl y,e.g.
lanes branch off, cross one ano ther or
mer ge.
RThe road is nar row and winding.
RIfth ere are highly variable shade conditions
on thero ad.
RIfth ere are obs tacles such as object mar kers
on the lane or projecting out into the lane.
The sy stem does not pr ovide assis tance in the
fo llowing conditions:
ROn very sharp bends.
RWhen towing a trailer.
RIfyo u act ively change lane without switch ing
on the turn signal indicator.
RIfyo uswit chon the turn signal indicator and
th e conditions for activating Active Lane
Change Assi stare not fulfilled.
Ac tivating Active Steering Assist
Requ irements:
RESP®must be activated, but not inter vening.
RAc tive Dis tance Assist DISTRONIC must be
activated.
#If indicator lamp 1is off: press button 2.
Fu nction of Active Lane Change Assi st
Ac tive Steering Assist is only an aid. You are
re sponsible forth e dis tance totheve hicle in
front, forve hicle speed, for braking in good time
and forst ay ing in lane. Before changing lanes, make sure
that the neighboring lane is free
(shoulder view).
% The availability of thefo llowing function is
countr y-dependent.
Ac tive Steering Assist remains active even if the
turn signal indica tor is switched on. Active Steer‐
ing Assist then assists the driver when changing
lanes byapplying steering torques toinitiate the
lane change.
Assis tance when changing lanes is pr ovided if all
th efo llowing conditions are me t:
RYou are driving on a free wayor high-speed
multi-lan emajo rro ad with multiple lanes in
th e direction of tr avel.
RThe neighboring lane is free and separated
bya broken lane marking.
RThe driven speed is between 50 mph
(80 km/h) and 110mp h(1 80 km/h).
RThe turn signal indicator is switched on for
longer than two seconds.
If th e sy stem is impaired, Active Lane Change
Assi stmay be inter rupte d. If an inter ruption
occurs, display 1appears in the multifunction
18 4
Driving and pa rking
Page 187 of 506

display along with awarning tone prom pting you
to take control of theve hicle.
Ste ering and contact de tection
Ac tive Steering Assist requ ires you as the driver,
to keep your hands onthesteering wheel at all
times so that you are abletointer vene at any
time tocor rect the course of theve hicle and
ke ep it in lane. The driver must expect a change
from active topassive mode or vice versa at any
time.
If yo u are not steering yourself or ifyo u take
yo ur hands offthesteering wheel for a pro‐
longed period of time, the sy stem will, depend‐
ing on the situation, firs t alert youwit h a visual wa
rning. 1appears in the multifunction displa y.
If yo u are still not steering theve hicle yourself or
if yo u ha venot take n hold of thesteering wheel,
a wa rning tone sounds in addition tothewa rning
message toremind youto take control of the
ve hicle.
The warning message does not appear or disap‐
pears if one of thefo llowing conditions are me t:
RThe driversteers theve hicle.
RThe driver presses a steering wheel button or
operates Touch Control.
Fu nction of Active Eme rgency Stop Assist
If th e driver continues toigno rethe acoustic
wa rning of Active Lane Change Assi st,Ac tive
Dis tance Assist DISTRONIC reduces the speed.
If th e dr iver
still does n
otrespond, theve hicle is
decelerated in stages toast andstill.
The driver can cancel the deceleration at any
time byper form ing one of thefo llowing actions:
RSt eering
RBraking or accelerating
RPressing a steering wheel button or operat‐
ing Touch Control
RAc tivating or deacti vating Active Steering
Assist or Dis tance Assist DISTRONIC
The driver must beready totake control of the
ve hicle at any time.
Information on Hill Start Assist
Hill Start Assist holds theve hicle for a short
time when pulling away on a hill under thefo l‐
lowing conditions:
RThe transmission is in position hork.
RThe elect ric park ing brake is released.
This gives you enough time tomo veyour foot
from the brake pedal tothe accelerator pedal
and depress it before theve hicle begins toroll.
&
WARNING Risk of accident and injury
caused bytheve hicle rolling away
Af ter a short time, Hill Start Assist no longe r
holds theve hicle and it can rollaw ay.
#Therefore, swiftly mo veyour foot from
th e brake pedal tothe accelerator
Driving and parking 18
5
Page 204 of 506
&WARNING Risk of accident due tovehi‐
cle swinging out while parking or pulling
out of a parking space
While parking or exiting a parking space, the
ve hicle swings out and can drive onto areas
of the oncoming lane.
This could cause youto collide wi thobjects
or other road users.
#Pa yattention toobjects and other road
users.
#Where necessar y,stop theve hicle or
cancel the parking procedure with
Ac tive Parking Assist.
#If, forex ample, the ( Q J D J H 5 H Y H U V H * H D U
message appears in the multimedia sy stem
display: select the cor responding transmis‐
sion position.
The vehicle drives into the selected parking
space.
On completion of the parking procedure, the
3 D U N L Q J $ V V L V W ) L Q L V K H G 7 D N H &