X
Briefly press the cruise control lever in the
direction of arrow 0086.
Variabl eSpeedtroni cisselected .LIM indi-
cator lamp 0047in the cruise control lever
lights up.
Cruise control is automaticall ydeactivated if:
R yo ud epress the parking brake.
R yo ud rive at less than 30 km/h
R ESP ®
intervenes or yo udeactivate ESP ®
R yo uc hange into neutral in avehicle with
manual transmission while driving or if the
clutch is depressed for longer than 6sec-
onds
R on vehicle swithm anual transmission, you
shift to ahigher gea rand as aresult the
engine speed is too low
R yo um ove the selector lever to Non vehi-
cle sw itha utomatic transmission* while
driving
If cruise control is deactivated, yo uwillh ear
aw arning tone. You see the Cruise con‐
trol off messageinthe multi-function dis-
play for approximately five seconds.
i The last speed store disclearedwheny ou
switch off the engine. DISTRONI
CPLUS*
i Distronic Plu sisnot available in al lcoun-
tries.
Distronic Plu sregulates the speed and auto-
matically maintains the distance to the vehi-
cle in front. It brakes automaticall yinorder
to avoid exceeding the set speed. On long and
stee pdownhil lgradients, especially if the
vehicle is laden or towing atrailer, yo umust
select shift range 1,2or 3in goo dtime .By
doing so, yo uwillm ake us eofthe braking
effect of the engine, which relieves the load
on the brake system and prevents the brakes
from overheating and wearing too quickly. G
Risk of accident
Do not change dow nfor additiona lengine
braking on aslippery roa dsurface .Thisc ould
cause the drive wheel stoloset hei rgripa nd
the vehicle could skid. G
Risk of accident
DISTRONIC PLUS is only an ai ddesigne dto
assist driving .The driver is fully responsible
for the vehicle's distance from othe rvehicles,
the vehicle's speed and for braking in good
time.
DISTRONIC PLUS doe snot react to:
R pedestrians
R stationar yobstacles on the road, e.g. stop-
ped or parked vehicles
R oncoming and crossing traffic
DISTRONIC PLUS may not detect narro wvehi-
cle sdriving in front, e.g. motorcycles, or vehi-
cle sd riving on adifferent line. Therefore,
always pa yattention to traffi cconditions even
whe nDISTRONIC PLUS is activated. Other-
wise, yo umay fai ltorecognise dangers in
time ,cause an accident and injure yourself
and others.
If as lower-moving vehicle is detected in front,
Distronic Plu scauses your vehicle to brake
and maintai napreset distance to the vehicle
in front. G
Risk of accident
DISTRONIC PLUS cannot take account of road
and traffi cconditions .IfDISTRONIC doe snot
recognise or no longer recognise sthe vehicle
in front, do not activate DISTRONIC or, if it is
already active, deactivate it. Thi sisespecially
the case:
R before corners
R in filter lanes Drivin
gsystems
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R
when changing to alane with faster moving
traffic
R in complex driving situation sorwhere the
lanes are diverted ,e.g.atm otorway/road-
way construction sites
Otherwise, DISTRONIC PLUS maintain sthe
current speed or accelerates up to th eset
speed.
DISTRONIC PLUS cannot tak eaccount of
weather conditions .Deactivate, or do not
activate, DISTRONIC PLUS if:
R ther oads are slippery, snow-covered or icy.
The wheels could lose grip when braking or
accelerating. The vehicle could start to
skid.
R thes ensors are dirt yorthere is poor visi-
bility, e.g .due to snow, rain or fog. Distance
control may be impaired.
Always pay attention to traffic conditions
even when DISTRONIC PLUS is activated.
Otherwise, you may fail to recognise dangers
in time, cause an acciden tand injure yourself
and others.
The radar sensor system is automatically
deactivated near radio telescope facilities
(Y page 304).
If you want Distronic Plus to assist you, the
radar sensor system must be activated and
operational.
If no car is driving in front of you, Distronic
Plus work slike cruise control in th espeed
range between 30 km/h and 20 0km/ h. If a
vehicle is driving in front of you, Distronic Plus
work sint hespeed range between 0km/h
and 20 0km/ h.
Do not use Distronic Plus while driving on
roads with steep gradients. G
Risk of accident
DISTRONIC PLUS brakes your vehicle at a
maximum of 4m/s2
depending on its speed.
This correspond stoapproximately 40 %of
your vehicle's maximum brak eforce. You must also apply th
ebrakes yoursel fifthis
braking power is not sufficient.
If DISTRONIC PLUS detect sarisk of collision
with avehicle in front ,anintermittent warning
ton esounds. In addition, the 00BAdistance
warning lamp in th einstrumen tcluster lights
up. Brake to avoid acollision.
Cruise control lever With th
ecruise control lever you can operate
Distronic Plus and variable Speedtronic.
The LIM indicator lamp on th ecruise control
lever indicates which system you have selec-
ted:
R LIM indicator lamp off:
Distronic Plus is selected.
R LIM indicator lamp lit:
Variable Speedtronic is selected. 0046
To store th ecurrent speed or ahigher
speed
0047 To adjus tthe specified distance
008A LIM indicator lamp
0088 To store th ecurrent speed or call up the
last stored speed
0086 To store th ecurrent speed or alower
speed
0087 To switch between Distronic Plus and var-
iable Speedtronic
006E To deactivat eDistronic Plus 126
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X
To increase: turnthumbwheel 0047towards
008A.
Then, Distroni cPlusm aintains agreater
distance between your vehicl eand the
vehicl einfront.
X To decrease: turnthumbwheel 0047
towards 0046.
Then, Distroni cPlusm aintains ashorter
distance between your vehicl eand the
vehicl einfront.
i Make sure tha tyou maintain the mini-
mu md istance to the vehicl einfront
required by law. Adjust the distance to the
vehicl einfront if necessary.
Distroni cPlusd isplay sinthe speedom-
eter Whe
nDistroni cPlusisa ctivated ,one or two
segments 0047in the set speed range light up.
i For design reasons ,the speed displayed
in the speedometer ma ydiffe rs ligh tlyf rom
the speed set for Distroni cPlus. If Distroni
cPlusd etects avehicl einf ront,
segments 0047between speed of the vehicl ein
front 0046and stored speed 008Alight up.
Distroni cPlusd isplay sinthe multi-
function display In the Assistance menu (Y
page 116) of the
on-board computer, yo ucan select the dis-
tance display and activate or deactivate the
PRE-SAFE ®
Brake*.
Display when Distroni cPlusiss witched
off
X Select the Distance display function
using the on-board computer
(Y page 116).
Whe nDistroni cPlusisd eactivated ,you will
see the following in the multi-functio ndisplay: 0046
Symbo lfor activated PRE-SAFE ®
Brake
0047 Vehicl einfront, if detected
008A Distance indicator, displaying current dis-
tance to the vehicl einfront
0088 Specified minimu mdistance to the vehi-
cle in front, adjustable
0086 Ownvehicle
Display when Distroni cPlusiss witched
on
X Select the Distance display function
using the on-board computer
(Y page 116).
Yo uw ills ee the stored speed for abou tfive
second swheny ou activate Distroni cPlus.
After thi stime yo uwills ee the following in the 130
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multi-function display while Distronic Plusis
activated: 0046
Distronic Plusa ctivated
0047 Own vehicle
008A Specifie dminimu mdistance to the vehi-
cle in front, adjustable
0088 Vehicl einfront, if detected
Deactivatin gDistronic Plus There are severa
lwaystod eactivate Dis-
tronic Plus:
X Briefly press the cruise control lever for-
wards 0046.
or
X Brake, unles sthe vehicl eisstationary.
or
X Briefly press the cruise control lever in the
directio nofarrow008A.
VariableS peedtronic is selected. LIM indi-
cator lamp 0047in the cruise control lever
lights up. i
The lasts peedstored remains stored until
you switch off the engine.
i Distronic Plusisn ot deactivated if you
depress the accelerator pedal. If you accel-
erate briefl ytoovertake, Distronic Plus
adjusts the vehicle's spee dtothe last
spee dstored after you have finishe dover-
taking.
Distronic Plusisa utomatically deactivated if:
R you depress the parking brake.
R you are driving slower than 25 km/h and
there is no vehicl einfront, or the vehicl ein
front is no longer detected.
R ESP ®
intervenes or you deactivate ESP ®
.
R you shift the automatic transmission* to
N, Por R.
R the vehicl eisneararadiot elescop efacility
(Y page3 04).
R you switch off the rada rsensor system
(Y page1 21).
R you pullt he cruise control lever towards
you in order to pulla waya nd the front-
passenger door is open.
If Distronic Plusisd eactivated, you willh ear
aw arning tone. You wills ee theDISTRONIC
PLUS off message in the multi-function dis-
playf or approximatel yfive seconds.
If the vehicl ehas been stopped by Distronic
Plusa ndafault occurs in the system, the
Brake immediately message appears in the
multi-function display.D epress the brake
peda limmediatel ysothat the vehicl edoes
not roll away. Distronic Plusisd eactivated
and the message disappears.
Tips for driving with Distronic Plus The following contains descriptions of certain
road and traffic conditions in which you must
be particularl
yattentive. In such situations,
brake if necessary .Distronic Plusist hen
deactivated. Driving systems
131Controls
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Distroni
cPlusm aydetect vehicles tha tare
crossing your lane by mistake. Activating Dis-
troni cPlusatt rafficlight swithc rossing traf-
fic ,for example, could cause your vehicl eto
pull away unintentionally. SPEEDTRONIC
Speedtroni cbrakes automaticall ysothatyou
do not exceed the se tspeed. On long and
steep downhil lgradients ,especially if the
vehicl eisladen or towing atrailer, yo umust
shift to alower gear in good tim eorselect
shift range 1,2or 3on vehicles with auto-
matic transmission* .Bydoing so, yo uwill
make us eofthe braking effect of the engine,
which relieves the load on the brake system
and prevents the brakes fro moverheating
and wearing too quickly. If yo uneeda ddi-
tional braking ,depress the brake pedal
repeatedly rathe rtha nc ontinuously. G
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Never depress the brake peda lcontinuously
whil ethe vehicl eisinmotion, e.g .neve rcause
the brakes to ru bbyapplyingconstant slight
peda lpressure. This cause sthe brake system
to overheat, increase sthe braking distance
and can lead to the brakes failing completely. G
Ris
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Do not change down for additional engine
braking on aslipper yroads urface. This could
cause the drive wheels to lose their gri pand
the vehicl ecould skid.
Yo uc an se tavariable or permanent limit
speed:
R variable for speedlimit s, e.g .inbuilt-up
areas
R permanent for long-term spee drestric-
tions, e.g .for driving on winter tyres
(Y page 135) G
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Speedtroni ciso nlyana iddesigne dtoassist
driving. Yo uareresponsibl efor the vehicle's
spee dand for braking in good time.
i Thes peed indicated in the speedometer
ma ydiffe rs ligh tlyf romt he limi tspeed
stored.
Variabl eSpeedtronic With the cruis
econtro llev er,y ou can operate
cruis econtrol, Distroni cPlus* and variable
Speedtronic.
Th eL IM indicator lamp on the cruis econtrol
lever indicates which syste myouhave selec-
ted:
R LIM indicator lamp off:
Cruise contro lorDistroni cPlus* is selec-
ted.
R LIM indicator lamp lit:
Variable Speedtroni ciss elect ed.
Yo uc an us ethe cruis econtro llev er to limit
the spee dtoany spee dabove 30 km/h while
the engine is running. 0046
To stor ethe current spee dorahigher
speed
0047 LIM indicator lamp
008A To stor ethe current spee dortocallup
the last stored speed
0088 To stor ethe current spee doralower
speed Driving systems
133Controls
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X
Briefly press the cruise control lever in the
direction of arrow 0086.
LIM indicator lamp 0047in the cruise control
lever goe sout.V ariabl eSpeedtroni cis
deactivated.
Cruise control or Distronic Plus* is selec-
ted.
Variabl eSpeedtroni cisautomaticall ydeacti-
vated:
R whe nyou depress the accelerato rpedal
beyond the pressure point (kickdown) but
only if your current speed doe snot differ by
more than 20 km/h from the store dspeed.
You will hea rawarning tone if this is the
case.
R on vehicle swithm anual transmission, if
yo us hift to ahigher gea rand as aresult the
engine speed is too low. G
Risk of accident
It is not possible to deactivate variabl eSpeed-
tronic by braking.
i The last speed store disclearedwheny ou
switch off the engine.
Permanen tSpeedtronic i
Permanent Speedtroni cisonly available
in certain countries.
You can us ethe on-board compute rtolimit
the speed permanently to avalue between
160 km/h (e.g .for driving with winter tyres)
and the maximum speed.
Just before the store dspeed is reached ,it
appears in the multi-function display.
Permanent Speedtroni cremains active, even
if variabl eSpeedtroni cisdeactivated.
You cannot excee dthe store dlim it speed,
eve nify oudepress the accelerato rpedal
beyond the pressure point (kickdown). Setting permanent Speedtronic
X Press 0040or003E to select the Set‐
tings menu.
X Press 003Dor003C to highlight the Vehi‐
cle submenu and select with 0064.
X Press 003Dor003C to select the Limit
spee d(winter tyres): function.
You can see the current setting.
X To change this ,press 0064. X
Press the 003Dor003C button to set per-
manent Speedtroni cinincrements of ten
(240 km/h to 160 km/h). Permanent
Speedtroni cisdeactivated with the Off
setting.
X Press 0064to save the entry. HOL
Dfunction
The HOLD function can assis tthe driver in the
following situations:
R whe npulling away ,especially on steep
slopes
R whe nmanoeuvring on stee pslopes
R whe nwaiting in traffic
The vehicle is kept stationar ywithou tthe
driver having to depress the brake pedal.
The braking effect is cancelled and the HOLD
function deactivated whe nyou depress the
accelerato rpedal to pull away.
Activation conditions You can activate the HOLD function if:
R
the vehicle is stationary.
R the engine is running. Drivin
gsystems
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Fron
tsensors Centre Approximately 10
0cm Corners Approximately 60 cm
Rea
rsensors Centre Approximately 12
0cm Corners Approximately 80 cm
!
When parking ,pay particular attentio nto
object sabov eorb elow th esensors, such
as flower pot sortrailer towbars .PAR K-
TRONIC does no tdetect suc hobject swhen
they are in th eimmediat evicinity of the
vehicle .You could damag ethe vehicle or
th eo bjects.
Ultrasonic sources suc hasanautomatic
car wash, alorry's compressed-air brakes
or ap neumatic dril lcou ld caus ePARK-
TRONIC to malfunction.
Minimu mdistance Centre Approximately 20 cm
Corners Approximately 15 cm
If there is an obstacle within this range, all
warning displays light up and
atones ounds.
If th edistanc efalls below th eminimum clear-
ance, it may no longer be shown.
Warning displays The warning displays sho
wthe distance
between th esensor sand th eobstacle .The
warning display for th efront area is located
on th edashboard abov ethe centr eair vents.
The warning display for th erear area in the
Coupé is locate dontheroo flining in th erear
compartment; in th eCabriolet ,itisbetween
th er ear seats. Warning display for fron
tarea
0046 Left-han dside of th evehicle
0047 Right-hand side of th evehicle
008A Indicato rsegments
The warning display for each side of th evehi-
cle is divided int ofivey ellow and two red seg-
ments .PAR KTRONIC is operational if yellow
indicator segments 008Alight up.
The gear leve rpositio nor, in th ecaseofa uto-
matic transmission*, th eselector leve rposi-
tio nd etermine swhichw arning display is
active when th eengineisr unning:
Manual transmission: Selector lever
position Warning display
Forward
sgear
or
Neutral Fron
tarea activated Revers
egear Rear and fron
tareas
activated Automatic transmission*:
Selector lever
position Warning display
D
Fron
tarea activated R
or N Rear and fron
tareas
activated P
No areas activatedDriving systems
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Brakes
G
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Do not change down for additional engine
braking on aslipper yroads urface. Thi scould
cause the drive wheels to lose thei rgripa nd
the vehicl ecould skid. G
Ris
kofa ccident
Make sure tha tothe rroa du sers are not
endangere dbyyourb raking.
Downhil lgradients On long and stee
pdownhil lstretches ,espe-
ciall yift he vehicl eisladen or towing atrailer,
yo um usts hift to alower gearing oodtime or,
on vehicles with automatic transmission*,
select shift range 1,2or 3.
i Thisalsoa pplies if youhavea ctivated
cruis econtrol, SPEEDTRONIC or DIS-
TRONIC PLUS*.
Thi sw illu se the braking effect of the engine,
so less braking will be required to maintain
the speed .Thisr elieves the load on the brake
system and prevents the brakes from over-
heating and wearing too quickly. If yo uneed
additional braking ,depress the brake pedal
repeatedly rather tha ncontinuously.
Heavy and light loads If the brakes have been subjected to
aheavy
load ,don ot stop the vehicl eimmediately, but
drive on for ashort while. Thi sallow sthe air-
flo wtoc oolthe brakes more quickly. G
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kofa ccident
Never depress the brake peda lcontinuously
whil ethe vehicl eisinmotion, e.g .neve rcause
the brakes to ru bbyapplyingconstant slight
peda lpressure. Thi scauses the brake system
to overheat, increases the braking distance
and can lead to the brakes failing completely.
If the brakes have been used onl ymoderately,
yo us houl doccasionall ytest thei reffective-
ness .Todot his, brake more firmly from a highe
rspeed .Thisi mprove sthe gri pofthe
brakes.
Wet roads If driving in heavy rain for
aprolonged period
of time withou tbraking ,ther em aybe a
delaye dreactio nfrom the brakes when brak-
ing for the first time .Thism ayalso occu rafter
the vehicl ehasbeen washed.
Yo uh avetod epress the brake peda lmore
firmly .Maintain agreate rdistance from the
vehicl einfront.
After driving on awetroa dorh aving the vehi-
cle washed, brake firmly whil epayin gatten-
tio ntot he traffic conditions. Thi swaythe
brake discs will become warm, drying more
quickly, which will protect them against cor-
rosion.
Limite dbraking performanc eonsalt
treate droads G
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The laye rofsaltont he brake discs and the
brake pads/lining smaycause adelay in the
braking effect, resulting in asignificantly lon-
ger braking distance, which could lead to an
accident.
To avoid thi sdanger ,you should:
R occasionall ybrake carefully, withou tput-
ting othe rroa du sers at risk, when yo uare
driving on salte droads. Thi shelps to
remove any salt tha tmayhave started to
buil dupont he brake discs and the brake
pads/linings.
R maintain agreate rdistance to the vehicle
ahea dand drive with particula rcare.
R carefull yapply the brakes at the end of a
trip and immediatel yaftercommencing a
new trip ,sothats altr esidue sare removed
from the brake discs. Driving tips
191Operation
*optional
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