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00BBReduce 5or increase 6the specified dis‐
ta nce from theve hicle in front.
Pulling away wit hAc tive Di stance Assist
DI STRO NIC
Re quirement: a speed must ha vebeen pr evi‐
ously stored.
00BBRe mo veyour foot from the brake pedal.
00BBBrief lypull the cruise control le verto wa rds
yo u2.
or
00BBAc celerate brie fly.
Yo ur vehicle pulls away and adapts its speed
to that of theve hicle in front. If no vehicle is
de tected in front, your vehicle accelerates to
th e set speed.
Ad opting the speed limit as thesto red speed
Re quirements:
RActive Speed Limit Assi stis activated in the
multimedia sy stem (→page 192).
RAc tive Dis tance Assist DISTRONIC is acti va‐
te d.
RThe sy stem de tects a traf fic sign indicating a
speed limit.
00BBBrie fly pull the cruise control le verto wa rds
yo u2.
The display ed speed limit is adop ted as the
st ored speed. Your vehicle adapts its speed
to that of theve hicle in front, but only up to
th estored speed. If Active Speed Limit Assi st
is activated, any detected changes in the
speed limit are adop tedby the sy stem.
Collision warning
If Ac tive Dis tance Assist DISTRONIC is unable to
suf ficiently decele rate theve hicle in order to
pr eve nt it from approach ingtheve hicle in front,
yo u will be warned visually and acousticall y.An
intermittent warning tone will then sound and
th e dis tance warning lamp will light up in the
instrument clus ter.
00BBBrake immediately in order toinc rease the
dis tance from theve hicle in front.
or
00BBTa ke evasive action pr ovided it is safe todo
so.
Ac tive Steering Assist
Function of Active Steering Assist
Ac tive Steering Assist is only available for
ve hicles with the Driving Assistance Pack‐
age.
RAc tive Steering Assist is operational at
speeds up to130mp h(210 km/h) and helps
Driving and pa rking 16
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youto stay inthe center of the lane by
means of moderate steering inter ventions.
RIt uses theve hicle in front and the lane mark‐
ings as a refere nce depending on the driven
speed.
RAc tive Steering Assist requ ires you, as the
driver, tokeep your hands onthesteering
wheel at all times so that you are ableto
inter vene at any time tocor rect the course of
th eve hicle and keep it in lane.
RAc tive Steering Assist can be overridden at
any time bysteering theve hicle yourself.
RWhen the sy stem is actively steering, the
è symbol is shown in green in the multi‐
function displa y.
Sy stem limitations of Active Steering Assist
Ac tive Steering Assist has a limited steering tor‐
qu efo r lateral guidance. In some cases, the
st eering inter vention is not suff icienttokeep the
ve hicle in the lane.
If th e de tection of lane markings and vehicles
ahead is impaired, Active Steering Assist
switches topassive mode. The sy stem pr ovides
no support in this case. During the transition from
the active topassive status, theè sym‐
bol is shown as enlar ged and flashes yello w.
Once the sy stem is passive theè symbol is
gr ay ed out in the multifunction displa y.
The sy stem may be impaired or may not function
in the
fo llowin
g ins tances:
RIfth ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, or due tosno w,
ra in, fog or heavy spr ay.
RIfth ere is glare, e.g. from oncoming traf fic,
dire ct sunlight or reflection from other vehi‐
cles (e.g. if the car riag ewa yis we t).
RIfth e windshield is dirty, fogged up, damaged
or co vered, for ins tance byast icke r,in the
vicinity of the camera.
RIf no, or se veral, unclear lane markings are
present for one lane, e.g. in a construction
area.
RIf th e lane markings are wornaw ay, dark or
co vered up, e.g. bydirt or sno w.
RThe distance totheve hicle in front is too
small and the lane markings thus cannot be
de tected.
RIfth e lane markings change quickl y,e.g.
lanes branch off, cross one ano ther or
mer ge.
RThe car riag ewa yis nar rowand winding.
RIfth ere are highly variable shade conditions
on the car riag ewa y.
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 u switch onthe t urn 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.
16 8
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RActive Dis tance Assist DISTRONIC is acti va‐
te d.
00BBIf 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 your lane. Before changing lanes, make sure
that the neighboring lane is
free (shoulder view).
00CE 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 mo torw ay or high-speed
multi-lane major road 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 canceled. If an inter ruption
occurs, display 1appears in the multifunction display along with a
warning tone pr om
ptin
g 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 on thesteering wheel at all
times so that you are able tointer 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 if you 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 you with a visual
Driving and parking 16
9
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warning. 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 driver still does not respond, 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 005Bor005E.
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.
0071
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.
00BBTherefore, swiftly mo veyour foot from
th e brake pedal tothe accelerator
pedal. Ne ver attem pttolea vetheve hi‐
cle if it is being held byHill Start Assist.
HOLD function
HOLD function
The HOLD function holds theve hicle at a stand‐
st ill without requ iring youto depress the brake
pedal, e.g. when pulling away on steep slopes.
Sy stem limitations
RThe incline must not be greaterth an 30%.
Ac tivating/deactivating the HOLD function
0071
WARNING Risk of an accident due tothe
HOLD function being activated when you
lea vetheve hicle
If yo u lea vetheve hicle while only the HOLD
function is braking theve hicle, theve hicle
can rollaw ay inthefo llowing situations:
RIf th ere is a malfunction in the sy stem or
in the po wer supply.
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RIfth e HOLD function is deactivated by
depressing the accelera tor pedal or the
brake pedal, e.g. byave hicle occupant.
RIfth e electrics in the engine compart‐
ment, the battery or the fuses are tam‐
pered with or if the battery is disconnec‐
te d.
00BBAlw ays deactivate the HOLD function
and secure theve hicle against rolling
aw ay before leaving theve hicle.
0075 NO
TEDama gefrom au tomatic braking
When Active Brake Assi st,Ac tive Dis tance
Assist DISTRONIC or the HOLD function are
activated, theve hicle brakes autonomously
in cer tain situations.
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations:
00BBDuring towing
00BBIn a car wash
Requirements:RThe vehicle is stationar y.
RThe driver's door is closed or the seat belt on
th e driver's side is fastened.
RThe engine is running or has been au tomati‐
cally switched off bythe ECO start/ stop
function.
RThe electric parking brake is released.
RAc tive Dis tance Assist DISTRONIC is not acti‐
va ted.
RThe transmission is in position 005B,005Eor005C.
Ac tivating the HOLD function
00BBDep ress the brake pedal and af ter a short
time depress fur ther until the00D9 display
appears in the multifunction displa y.
00BBRelease the brake pedal.
Deactivating the HOLD function
00BBDepress the accelerator pedal topull away.
or
00BBDepress the brake pedal until the00D9 dis‐
play disappears from the multifunction dis‐
pla y. The HOLD function is deactivated in
thefo llow‐
ing situations:
RWhen Active Dis tance Assist DISTRONIC is
acti vated.
RThe transmission is switched toposition 005D.
RWhentheve hicle is secured with the electric
parking brake.
In thefo llowing situations, theve hicle is held by
th e transmission position 005Dorby the electric
parking brake:
RWhen the seat belt is unfas tened and the
driver's door is opened.
RWhen the engine is switched off.
RWhen there is a malfunction in the sy stem or
if th e po wer supp lyis insuf ficient.
AIR BODY CONT ROL
AIR BODY CONT ROL function
AIR BODY CONTROL is an air suspension sy stem
with variable damping for impr oved driving com‐
fo rt. The all-round le vel control sy stem ensures
th e best possible suspension and const ant
Driving and parking17
1
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ground clearance,even wi tha laden vehicle.
When driving at speed, theve hicle is lo wered
automatically toimpr ovedriving saf etyand to
re duce fuel consum ption. The option of manually
adjusting theve hicle le vel is also available.
AIR BODY CONTROL comprises:
RAir suspension with variable spring rate
RAu tomatic le vel control sy stem
RSpeed-dependent lo wering toreduce fuel
consum ption
RManually selecta ble high-level setting for
grea ter ground cleara nce
RADS PLUS (Ada ptive Damping Sy stem with
const ant damping forc e adjustment)
RDY NA MIC SELECT switch and le vel button
Av ailable suspension settings
Drive prog ramC haracteristics
C
(Comfort)
RThe suspension tuning is comfor table.
RThe vehicle is set tothe normal le vel.
RWhen driving at speeds of abo ve77 mph (125 km/h) theve hicle is lo wered.
RWhen driving at speeds below 50 mph (80 km/h), theve hicle is raised again.
E
(Econo my)
RThe suspension tuning is comfor table.
RThe vehicle is set tothe low le vel.
RThe vehicle is not lo wered any fur ther if you are tr aveling at higher speeds.
17 2
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Driveprog ramC haracteristics
S
(Sport)
RThe suspension tuning is firm er.
RThe vehicle is set tothe low le vel.
RThe vehicle is not lo wered any fur ther if you are tra veling at higher speeds.
S+
(Sport Plus)
RThe suspension tuning is evenfirm er.
RThe vehicle is set tothe low le vel.
RThe vehicle is not lo wered any fur ther if you are tra veling at higher speeds.
Setting theve hicle le vel
0071
WARNING Risk of accident because
ve hicle le vel is too high
If yo udriv e at a higher vehicle le vel,th e driv‐
ing characteristics may be impaired due to
th e higher vehicle center of gr avity.
The vehicle can drift outwards, forex ample,
when steering or cornering.
00BBAlw aysch oose a vehicle le vel which is
suited tothe driving style and thero ad
sur face conditions.
0071
WARNING Risk of entrapment from vehi‐
cle lo wering
When lo wering theve hicle, people could
become trapped if their limbs are between
th eve hicle body and the tires or underneath
th eve hicle.
00BBMake sure no one is underneath the
ve hicle or in the immediate vicinity of
th e wheel ar ches when you lo werth e
ve hicle.
0071
WARNING Risk of entrapment from vehi‐
cle lo wering
Ve hicles with AIR BODY CONT ROL or
le ve l control sy stem: When you unload lug‐
ga ge or lea vetheve hicle, theve hicle firs t
ri ses slightly and then returns tothe set le vel
shortly af terw ards.
Yo u or an yone else in the vicinity of the
wheel ar ches or the underbody could thus
become trapped.
The vehicle can also be lo wered af ter being
loc ked.
Driving and parking 17
3
Page 176 of 498
00BBWhen leavingtheve hicle, make sure
th at nobody is in the vicinity of the
wheel ar ches or the underbody.
Re quirementsRThe vehicle has been star ted.
RThe vehicle must not be moving fasterthan
37 mph (60 km/h). Ra
ising theve hicle
00BBPress button 1.
Indicato r lamp2lights up.
The vehicle is set tothe high le vel.
Yo ur selection issave d. The
vehicle is lo wered again in thefo llowing sit‐
uations:
RWhen driving fasterthan 50 mph (80 km/h).
RWhen driving between 37mph (60 km/h)
and 50 mph (80 km/h) for app roxima tely
th re e minutes.
RAf ter selecting a drive program using the
DY NA MIC SELECT switch.
The vehicle is adjus tedto the height of the last
active drive program.
Lo weri ngtheve hicle
00BBPress button 1.
Indicato r lamp2goes out. The vehicle is
adjus tedto the height of the active drive pro‐
gram.
17 4
Driving and pa rking