Page 160 of 518

ETS/4ETS can impr
ovetheve hicle's traction by
inter vening in thefo llowing ways:
R The drive wheels are braked individually if
they spin. R
More drive torque is transferred tothe wheel
or wheels with traction.
Influence of drive prog rams on ESP ®
The drive programs enable ESP ®
to adapt todif‐
fe re nt we ather and road conditions as well as th
e driver's prefer red driving style. You can
select the drive prog rams using theDY NA MIC
SELECT switch (→ page138).
ESP ®
ch aracteristics per drive prog ramDrive prog
ram
ESP®
mode Cha
racteristics
C (Sport)
ESP®
Spo rt This drive program continues
toofferst ability
but with a sporty setup which allo wsthe enthu‐
siastic driver a more active driving style.
Select drive prog ram C in good road condi‐
tions, forex ample on dry roads and clear
st re tches of road.
A (Comfort)
; (Economy) ESP
®
Comfort These drive programs pr
ovide the ideal balance
between traction and stabilit y.
Select drive program A,Nor; in dif‐
fi cult road conditions, such as sn owor ice, or
when thero ad is wet from rain. 15 8
Driving and pa rking
Page 176 of 518

Fu
nction of Active Lane Change Assi st
% The availability of thefo llowing function is
countr y-dependent.
Ac tive Lane Change Assi stsupports the driver
when changing lanes byapplying steering torque
if th e driver operates a turn signal.
Assis tance when changing lanes is pr ovided if all
th efo llowing conditions are me t:
R You are driving on a free way or road with
multiple lanes in the direction of tr avel.
R The neighboring lane is separated bya bro‐
ke n lane ma rking.
R Novehicle is de tected in the adjacent lane.
R The driven speed is between 50 mph
(80 km/h) and 110mp h (1 80 km/h).
R Active Lane Change Assi stis switched on in
th e multimedia sy stem.
R Active Steering Assist is switched on and
active. If no
vehicle is de tected in the adjacent lane and
a lane change is permit ted, thesteering wheel
symbol and the ar row are shown in green 2.
The Lane Change to the Left message appears,
fo rex ample. If Active Lane Change Assi sthas
been activated with the turn signal indicator but
a lane change is not immediately possible, the
st eering wheel symbol remains green and the
ar row appears gray 1 . When the lane change
suppo rtstarts, the turn signal indicator is auto‐
matically activated.
If a lane change is not possible, the ar row fa des
out af ter a few seconds and a new lane change
must be initiated. An immediate lane change is on
ly possible on free way sections without speed
limits.
If th e sy stem is impaired, Active Lane Change
Assi stmay be canceled. If it is canceled, the
Lane Change Canceled message appears inthe
multifunction display and a warning tone sounds. &
WARNING Risk of accident from chang‐
ing lane toan occupied adjacent lane
Lane Chan geAssi stcannot al ways detect
clear lyifth e adjacent lane is free.
The lane change might be initiated although
th e adjacent lane is not free. #
Before changing lanes, make sure that
th e neighboring lane is free and there is
no danger to otherroad users. #
Monitor the lane change. 174
Driving and pa rking
Page 177 of 518

&
WARNING Risk of accident if Lane
Change Assi stunexpectedly stops func‐
tioning
If th e sy stem limitations for Lane Change
Assist ha vebeen reached, there is no guar‐
antee that the sy stem will remain active.
Lane Change Assist cannot then assist you
by applying steering torques. #
Alw ays monitor the lane change and
ke ep your hands on thesteering wheel.
Obser vethe tra ffic conditions and steer
and/or brake if necessar y.Sy
stem limitations
The sy stem limitations of Active Steering Assist
apply toActive Lane Change Assi st
( → page 172).
The sy stem may also be impaired or may not
function in thefo llowing situations:
R The sensors in there ar bumper are dirty,
damaged or co vered, for ins tance by a
st icke r or ice and sno w.
R The exterior lighting is malfunctioning. Ac
tivating/deactivating Active Lane Change
Assi st
Multimedia sy stem:
, Vehicle .
k Assistance #
Select Lane Change Assist . #
Activate 0073or deacti vate 0053 the function.
Fu nction of Active Eme rgency Stop Assist
If th e driver continually ignores the visual or
acoustic warning toput their hands on thesteer‐
ing wheel, theBeginning Emergency Stop mes‐
sage appears in the multifunction displa y.Ifthe
driver still does not respond, Active Dis tance
Assi stDISTRONIC reduces the speed. The vehi‐
cle is decelerated in stages toast andstill. At
speeds below 40 mph (6 0 km/h) the hazard
wa rning lights switch on automaticall y.
When theve hicle is stationar y,thefo llowing
actions are car ried out:
R The vehicle is secured with the electric park‐
ing brake
R Active Dis tance Assi stDISTRONIC is ended
R The vehicle is unloc ked R
If possible, an emer gency call is placed to
th e Mercedes-Benz emer gency call center
The driver can cancel the deceleration at any
time byper form ing one of thefo llowing actions:
R Steering
R Braking or accelerating
R Pressing a steering wheel button
R Operating Touch Control
R Activating or deacti vating Active Dis tance
Assi stDISTRONIC Overvi
ewofActive Di stance Assist
DISTRO NIC displa ysinthe instrument clus‐
ter The assis
tance graphic and thest atus display
show thest atus of thefo llowing functions in the
instrument clus ter:
R Active Dis tance Assi stDISTRONIC
R Route-based speed adap tation
R Active Steering Assist Driving and parking
175
Page 407 of 518
#
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated (1 to5 ).
Specified tightening torq ue: 111 lb-ft
(150 Nm). &
WARNING Risk of inju rythro ugh incor‐
re ct tigh tening torque
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened tothe
prescribed tightening torque. #
Makesure the wheel bolts or wheel
nuts are tightened tothe prescribed
tightening torque. #
Ifyo u are not sure, do not mo vethe
ve hicle. Consult a qualified specialist
wo rkshop and ha vethe tightening tor‐
qu ech ecked immediately. #
Check the tire pressure of the newly moun‐
te d wheel and adjust according ly. #
Vehicles with a tire pressure monitoring
sy stem: Restart the tire pressure monitoring
sy stem (→ page 383).
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tire pressure (→ page377) Wheels and
tires405