Ifyo udo not kn owthestored speed, the
ve hicle could decelerate unexpectedl y.
00BBTake into account the tra ffic situation
before calling up thestored speed.
00BBIf th estored speed is not known, store
th e desired speed again.
Change into a lo werge ar in good time on long
and steep downhill gradients. Take particular
no te ofthis when driving a laden vehicle. By
doing so, youwill make use of the braking ef fect
of the engine. This relie vesth e load on the brake
sy stem and pr events the brakes from overheat‐
ing and wearing tooqu ickl y.
Re quirements:
RCruise control is selected.
RESP®must be activated, but not inter vening.
RThe driving speed must be at least15mp h
(20 km/h).
00BBSt ore cur rent speed 2(once af terst arting
th eve hicle).
or
00BBCall up stored speed 2.00BBDeactivate cruise contro l1.
00BBPress the le ver brief ly:th estored speed is
increased 3orreduced
4 by1mp h (1 km/h).
or
00BBPress the le ver be yond the pressure point:
th estored speed is increased 3orreduced
4 by5mp h (10 km/h).
If cruise contro l has been deactivated, the cur‐
re nt driven speed is adop ted with 3or4.
Driving and parking 16
1
00CEIfyo ubr ake, deactivate ESP®or ifESP®
inter venes, cruise control is deacti vated.
When youswit choff theve hicle, the last
speed stored is cleared.
Ac tive Di stance Assist DI STRONIC
Function of Active Di stance Assist
DI STRO NIC
Ac tive Dis tance Assist DISTRONIC
RMaintainsthe set speed and accelera tes or
decelerates theve hicle if the dis tance from
th eve hicle in front permits.
RAssists youin main taining the dis tance from
th eve hicle in front and can bring your vehi‐
cle toast andstill if necessar y.
RBrakesyour vehicle with up to50 % of the
maximum possible braking po wer.If greater
decelera tion performance is requ ired, a vis‐
ual and acoustic warning is given and you
must then inter vene yourself.
RVe hicles with Driving Assistance Pack‐
age, Active Parking Assist and COMAND:
When driving in stop-s tart traf fic, the driver is suppor
tedby ex tended au tomatic re-sta rt in
traf fic jams.
RVe hicles with Driving Assistance Pack‐
age: Responds tostationary vehicles in
urban speed ranges (e xcept bicycles, mo tor‐
cycles and pedest rians) if conditions are suf‐
fi cient toenable de tection.
If yo ufa ilto adapt your driving style, Ac tive Dis‐
ta nce Assist DISTRONIC can nei ther reduce the
ri sk of an accident nor override the la wsof ph ys‐
ics. It cannot take into account road, weather or
traf fic conditions. Active Dis tance Assist
DISTRONI C i
s only an aid.
You are responsible
fo rth e dis tance totheve hicle in front, forve hi‐
cle speed, for braking in good time and forst ay ‐
ing in lane.
If all activation conditions are met, you can acti‐
va te Ac tive Dis tance Assist DISTRONIC du ring a
journ eyor while stationar y.When Active Dis‐
ta nce Assist DISTRONIC is acti vated, a speed is
st ored which the driver can increase or reduce
at any time. The speed can be adjus ted between
15 mp h (20 km/h) and 120mp h (200 km/h). Ve
hicles with the Driving Assistance Pack‐
age: The speed can be adju sted between
15 mp h (20 km/h) and 130mp h (2 10km/h).
Ve hicles with Driving Assistance Package,
Ac tive Parking Assist and COMAND: Upto30
seconds af terst opping, theve hicle automatically
fo llo ws th eve hicle ahead without the inter ven‐
tion of the driver. This is only possible if theve hi‐
cle is tr aveling on a mo torw ay or a high-speed
major road. If an obs tacle is de tected in front of
th eve hicle during the driving-off procedure, a
ta ke ove rwa rning is given. Acceleration is
re duced, the driver is given a visual and acoustic
wa rning and must stop theve hicle before reach‐
ing the obs tacle or take evasive action.
Ve hicles with the Driving Assistance Pack‐
age: In conju
nction with navigation sy
stems,
Ac tive Dis tance Assist DISTRONIC pr events pro‐
hibited overtaking on theright at speeds over
50 mph (80 km/h) in right-hand traf fic and over‐
ta king on the left in left-hand tra ffic on free ways
and high-speed major roads.
If yo u activate the turn signal indicator tochange
lanes, theve hicle will accelerate more briskly to
th e set speed under thefo llowing conditions:
16 2
Driving and pa rking
RActive Dis tance Assist DISTRONIC is acti va‐
te d.
RIfth e driving speed is higher than 45 mph
(70 km/h).
RIf th e driven speed drops below thestored
speed.
RThe sy stem cannot detect a vehicle in there l‐
ev ant area of theove rtaking lane.
Ve hicles with Driving Assistance Package
and Traf fic Sign Assis t:Ac tive Dis tance Assist
DISTRONIC also has theAc tive Speed Limit
Assi stfunction. This function can be configure d
in the multimedia sy stem. If a change in the
speed limit is de tected and Active Dis tance
Assist DISTRONIC is acti vated, Ac tive Dis tance
Assist DISTRONIC assumes this new speed.
The driven speed is adap ted when theve hicle is
le ve l with the tra ffic signs. The speed limit dis‐
play in the Instrument Display is alw ays update d
when theve hicle is le vel with the tra ffic sign.
If Ac tive Dis tance Assist DISTRONIC has been
put into passive modebypressing the accelera‐ to
r pedal, only speed limits which are higher
th an the set speed are adop ted.
Pulling the cruise control le ver will set the dis‐
pla yed speed limit as the speed, pr ovided that:
RAc tive Speed Limit Assi sthas been activated
in the multimedia sy stem and
RAc tive Dis tance Assist DISTRONIC has been
acti vated.
If no speed limit is displa yed when the le ver is
operated, the speed set bythe driver is adop ted.
Drive prog ram
The DYNA MIC SELECT switch allo wsyouto
ch ange the driving style of Active Dis tance
Assist DISTRONIC. Depending on which drive
prog ram is selected, the driving characteristics
can be geared towa rds fuel econom y,comfort or
dynamic per form ance (
→page 138).
Sy stem limitations
Ve hicles with the Driving Assistance Pack‐
age: Active Dis tance Assist DISTRONIC is acti ve
in the 0 mph(0 km/h) to130mp h(210 km/h)
speed range. The sy
stem may be impaired or may not function
in thefo llowing ins tances, forex ample:
RIn snow ,ra in, fog, heavy spr ay, if there is
gl are, in direct sunlight or in greatlyvarying
light conditions.
RThe windshield in the area of the camera is
dirty, mis ted up, damaged or co vered.
RIfth era dar sensors are dirty or co vered.
ROn slippery roads, braking or accelerating
can cause the drive wheels tolose traction
and theve hicle could then skid.
RIn parking garage s,tollst ations or on roads
with steep uphill or downhill gradients.
Do not use Active Dis tance Assist DISTRONIC in
th ese situations.
Tips
Pa yparticu
la rattention in thefo llowing traf fic
situations. In such situations, brake if necessar y.
Ac tive Dis tance Assist DISTRONIC is then deacti‐
va ted:
RWhen cornering, entering and exiting a bend.
RWhen not driving in the center of the lane.
Driving and parking 16
3
RTostationary obs tacles on thero ad, e.g.
st opped or par kedve hicles, if conditions
are not suf ficient toenable de tection
(vehicles wi th the Driving Assis tance
Pa ckage).
RTo oncoming vehicles and crossing traf‐
fi c.
Ac tive Dis tance Assist DISTRONIC can nei‐
th er give warnings nor inter vene in such sit‐
uations.
00BBAlw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times.
0071 WARNING Risk of accident due tolimi‐
te d de tectability of road users and traf fic
situations
Ac tive Dis tance Assist DISTRONIC cannot
al wa ys clear lyidentify other road users and
complex traf fic situations.
In these conditions, Active Dis tance Assist
DISTRONIC may:
RGi ve an unnecessary warning and then
brake theve hicle.
RNeither give a warning nor inter vene.
RAc celerate or brake unexpectedly.
00BBContinue driving wi thcare and be ready
to brake, particular lyifAc tive Dis tance
Assist DISTRONIC warnsyo u.
0071
WARNING Risk of accident from acceler‐
ation or braking byActive Dis tance
Assist DISTRONIC
Ac tive Dis tance Assist DISTRONIC may accel‐
erate or brake in thefo llowing cases, for
ex ample:
RIfth eve hicle pulls away using Active Dis‐
ta nce Assist DISTRONIC.
RIfth estored speed is called up and is
considerably faster or slo werth an the
cur rently driven speed.
RIfAc tive Dis tance Assist DISTRONIC no
longer de tects a vehicle in front or does
not react toreleva nt objects.
00BBAlw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times.
00BBTa ke into account the tra ffic situation
before calling up thestored speed.
0071
WARNING Risk of accident due toinsuf‐
fi cient decele ration byActive Dis tance
Assist DISTRONIC
Ac tive Dis tance Assist DISTRONIC brakes
yo ur vehicle with up to50 % of the maximum
possible deceleration. If this decele ration is
not suff icient,Active Dis tance Assist
DISTRONIC alerts you with a visual and
acoustic warning.
00BBIn these cases, adjust your speed and
ke ep a suf ficient dist ance.
00BBBraketheve hicle yourself and/or take
ev asive action.
Driving and parking 16
5
0071WARNING Risk of accident due toActive
Dis tance Assist DISTRONIC still being
activated when you lea vethe driver's
seat
If yo u lea vethe driver's seat while theve hicle
is being braked byActive Dis tance Assist
DISTRONIC only, theve hicle can rollaw ay.
00BBAlw ays deactivate Active Dis tance
Assist DISTRONIC and secure theve hi‐
cle topreve nt it from rolling away
before you lea vethe driver's seat.
Re quirementsRThe vehicle's engine must be switched on.
RThe electric parking brake must be released.
RAc tive Parking Assist is not being used to
park theve hicle or toexit from a parking
space.
RESP®must be activated, but not inter vening.
RThe transmission must be in position005B.
RThe driver door, front passenger door and the
re ar doors must be closed.
RThe engine hood must be closed.
00BBRe mo veyour foot from the accelerator pedal.
00BBTo store cur rent speed 2.
Yo ur vehicle adapts its speed tothat of the
ve hicle in front, but only up tothestored
speed.
or
00BBCall up stored speed 2.
00BBOron vehicles with Driving Assistance
Pa ckage and Traf fic Sign Assis t:the dis‐
pla yed speed limit is adop ted, if available 2.
00BBDeactivate Active Dis tance Assist DISTRONIC
1.
00BBIncrease 3orreduce 4the speed.
16 6
Driving and pa rking
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
7
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.
170
Driving and pa rking
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