SmartKey
Overview of SmartK eyfunctions
&
WARNING ‑ Danger of accident or injury
if ch ildren are left unatte nded intheve hi‐
cle
If ch ildren are left unatte nded intheve hicle,
th ey could:
Ropen doo rs,th ereby endangering other
persons or road users.
Rge t out of theve hicle and be hit by
oncoming traf fic.
Rope rate ve hicle equipment.
Moreo ver,ch ildren could also set theve hicle
in motion by,fo rex ample:
Rreleasing the parking brake.
Rshifting the automatic transmission out of
park position P jor shifting manual
transmission into idle position.
Rst arting the engine.
#Ne ver lea vechildren and animals unat‐
te nded in theve hicle.
#When leaving theve hicle, alw aysta ke
th eke ywit hyo u and lock theve hicle.
#Ke ep theve hicle keyout of there ach of
ch ildren.
* NO
TEDama getotheke ycaused by
magnetic fields
#Ke ep theke yaw ay from strong mag‐
netic fields.1Loc ks
2Battery check lamp
3Unloc ks
4Opens/closes the trunk lid
5Pa nic alarm
The Smart Keyloc ksand unlo cksth efo llowing
components:
RThe doors
RThe trunk lid
RThe fuel filler flap
Opening and closing 55
%Ifyo uth en exitth eve hicle leaving theke yin
th eve hicle, the automatic transmission
re mains in neutral i
Engaging park position P
#Press button 1.
Tr ansmission position display jis shown in
th e multifunction displa y. Pa
rk position jis engaged automatically if one
of thefo llowing conditions is me t:
RYou switch th e engine off with the transmis‐
sion in position hork.
RYou open the driver's door when theve hicle
is stationary or when driving at a very low
speed and the transmission is in position h
or k.
Engaging drive position D
#Depress the brake pedal and push the
DIRECT SELECT le ver down past thefirs t
point of resis tance.
The transmission position displ aysho wsh
in the multifunction displa y.
When the automatic transmission is in transmis‐
sion position h, it shiftsthege ars automati‐
call y.This depends on thefo llowing factors:
RThe selected drive program
RThe position of the accelera tor pedal
RThe road speed
Manual gear shifting
&
WARNING Risk of skidding and of an
accident due toshifting down on slippery
ro ad sur faces
If yo u shift do wnon slippery road sur faces to
inc rease the engine braking ef fect, the drive
wheels may lose traction.
#Do not shift down on slippery road sur‐
fa ces toinc rease the engine braking
ef fect.
13 8
Driving and pa rking
#Toactivate: pullsteering wheel paddle
shif ter1 or2.
Manual gearshifting is activated for a short
time. The cur rent gear is displa yed in the
multifunction displa y.
#Toshift up: pullsteering wheel paddle
shif ter2.
#To shift down: pullsteering wheel paddle
shif ter1.
#To deactivate: pullsteering wheel paddle
shif ter2 and hold it in place.
The transmission position
h appears in the multifunction displa y.
% Ifyo u select theManual drive setting in
drive prog ram I, manual gearshifting is per‐
manent lyactivated.
Gears hiftrecommendation
The gearshift recommendations assist youin
adopting an economical drivingst yle.
#If ge arshift recommendation message 1is
shown in the multifunction displa y,shift to
th ere commended gear.
Using kickdow n
#Maximum acceleration: depressthe accel‐
erator pedal be yond the pressure point.
During kickdown, you cannot shift gears using
th esteering wheel paddle shif ters. The au to‐
matic transmission shifts up tothe next gear
when the maximum engine speed is reached to
pr otect the engine from overrev ving.
#Ease off the accelera tor pedal once the
desired speed is reached.
Glide mode function
Wi th an anticipatory driving style, glide mode
helps youto reduce fuel consum ption.
Glide mode is characterized bythefo llowing:
RThe combustion engine is disconnected from
th e driv etra in and theve hicle continues to
ro ll in neut ral.
RThe transmission position his displa yed in
green in the multifunction displa y.
Glide mode is activated if thefo llowing condi‐
tions are me t:
RDrive program Eis selected.
RThe speed is wi thin a suitable range.
RThe cours e ofthero ad is suitable, e.g. no
st eep uphill or downhill gradients or tight
bends.
RYo u are no longe r depressingthe accelera tor
or brake pedal.
Driving and parking 13
9
shift from transmission positionjtoh or
k.
RIf th e transmission is in position k,the
trunk lid must be closed.
If th e seat belt tongue is not inser ted into the
seat belt buckle of the driver's seat, thefo llow‐
ing conditions must be fulfilled:
RThe driver's door is closed.
RYo u mo vethe transmission out of transmis‐
sion position joryou ha veprev iously
driven fasterthan 2 mph (3 km/h).
RIfth e transmission is in position k,the
trunk lid must be closed.
If th e electric parking brake is released, the
F (USA) or !(CANADA) indicator lamp in
th e instrument clus ter goes out. Applying or
releasing the electric pa rking
brake manually
#To appl y:push handle 1.
The F (USA) or !(Canada) indicator
lamp appears in the instrument clus ter.
#To release: switch on the ignition.
#Pull handle 1.
The F (USA) or !(Canada) indicator
lamp in the instrument clus ter goes out.
Emer gency braking
#Press and hold handle 1.
When theve hicle has been braked toa
st andstill:
RThe electric parking brake is applied.
RThe F (USA) or !(Canada) indica‐
to r lamp appears in the instrument clus‐
te r.
Pa rking theve hicle for a long period
Ifyo u lea vetheve hicle par kedfo r longer than
fo ur we eks, the battery may be damaged.
If yo u lea vetheve hicle par kedfo r longer than six
we eks, it may suf fer dama geas a result of lack
of use.
Information on parking your vehicle for an exten‐
ded pe riod can be obtained at a qualified spe‐
cialist workshop.
Driving and parking 14
9
Perm itted towing me thods
Bo th axles on thegr oundFront axle raisedRe ar axle raised
Ve hicles with manual transmission Yes, maximum 31miles (50 km) at
31 mp h (50 km/h) Ye
s, maximum 31miles (50 km) at
31 mp h (50 km/h) Ye
s, maximum 31miles (50 km) at
31 mp h (50 km/h)
Ve hicles with automatic transmis‐
sion Ye
s, maximum 31miles (50 km) at
31 mp h (50 km/h) No
Yes, if thesteering wheel is fixe d in
th e center position with a steering
wheel loc k.
4MATIC vehicles Yes, maximum 31miles (50 km) at
31 mp h (50 km/h) No
No
Towing wit h araised axle: towing should be
per form ed byato wing compan y.
Towing theve hicle with bo thaxles on the
gr ound
#Obser vethe no tes on the permitted towing
me thods (→page 334) (→page 333).
#Make sure that the battery is connected and
ch arge d.
When the battery is dischar ged:
RThe engine cann otbe star ted.
RThe elect ric park ing brake cannot be
re leased or applied.
RVe hicles with automatic transmission:
The au tomatic transmission cannot be shif‐
te dto position iorj.
334
Breakdown assis tance
Setting upthefo lding wheel chock
Prepa ring theve hicle for a wheel change
Re quirementsRThe requ ired tire-change tool kit is available.
If yo ur vehicle is not equipped with the tire-
ch ange tool kit, consult a qualified specialist
wo rkshop tofind out about suitable tools.
RThe vehicle is not on a slope.
RThe vehicle is on solid, non-slippery and le vel
ground .
#Applythe electric parking brake manually.
#Mo vethe front wheels tothest ra ight-ahead
position.
#Ve hicles with automatic transmission:
Shift into position j.
#Vehicles with AIR BODY CONT ROL:Set the
normal vehicle le vel (→page 174).
#Switch off the engine.
#Make sure that the engine cannot bestar ted.
#Place choc ks orother suitable items under
th e wheel that is diagonally opposite the
wheel you wish tochange.
#Re mo vethe hub caps if necessary
(→page 366).
#Ra ise theve hicle (→page 367).
Re moving and mounting hub caps
Requirement:RThe vehicle is prepared for a wheel change
(→page 366).
Plast ic hub cap
#Toremo ve:turn the center co ver of the hub
cap counter-clockwise and remo vethe hub
cap.
#To mount: makesurethat the center co ver
of the hub cap is turned counter-clockwise.
#Po sition the hub cap and turn the center
co ver clockwise until the hub cap engages
ph ysically and audibly.
366
Wheels and tires