This may a.ect
the po wer steering system and
th e brake forc e boosting, forex ample.
Yo u will need touse considerably more force
to steer and brake, forex ample. #
Do not switch o. theve hicle while driv-
ing. &
W
WARNING
ARNING Risk of accident due tothe
brake system overheating
If yo u lea veyour foot on the brake pedal when
driving, the brake system may overheat.
This increases the braking distance and the
brake system can even fail. #
Never use the brake pedal as a foot re st. #
Do not depress the brake pedal and the
accelerator pedal at the same time while
driving. *
N
NOOTE
TE Damage totheve hicle due tonot
observing the maximum permitted head-
ro om clearance If
th eve hicle height is greater than the maxi-
mum permitted headroom clearance, thero of
and other parts of theve hicle may be dam-
aged. #
Obser vethe signposted headroom clear-
ance. #
Ifth eve hicle height is greater than the
permitted headroom clearance, do not
enter. #
Obser vethech anged vehicle height with
add-on roof equipment. N No
ot
tes on dr
es on dr iving wit
iving with a r
h a roof load, tr
oof load, tr ailer or fully
ailer or fully
laden v
laden v ehicle
ehicle
When driving with a loaded roof luggage rack or
trailer as well as with a fully laden or fully occu-
pied vehicle, theve hicle's driving and steering
ch aracteristics change. Yo
u should bear thefo llowing in mind:
R Do not exceed the permissible roof load and
to wing capacity. Also obser vethete ch nical
data in the printed Owner's Manual.
R Evenly distribute thero of load, and place
heavy objects at the bottom. Also comply with
th e no tes on loading theve hicle
(/ page 124).
R Drive attentivel y,and avoid suddenly pulling
awa y,braking and steering as well as rapid
cornering.
N
No ot
tes on dr
es on dr iving on salt-tr
iving on salt-tr eat
eated r
ed r oads
oads
The braking e.ect is limited on salt-treated roads.
Therefore, obser vethefo llowing no tes:
R due tosalt build-up on the brake disks and
brakepads, the braking distance can increase
considerably or result in braking only on one
side
R maintain a much greater safe distance tothe
ve hicle in front 182
182
Driving and parking
To
remo vesalt build-up:
R brake occasionally while paying attention to
th e tra1c conditions
R carefully depress the brake pedal at the end of
th e journey and when starting the next jour-
ney
N
No ot
tes on aq
es on aq uaplaning
uaplaning
Aq uaplaning can take place once a cer tain
amount of water has accumulate d onthero ad
sur face.
Obser vethefo llowing no tes during heavy precipi-
ta tion or in conditions in whi chaquaplaning may
occur:
R reduce speed
R avoid tyre ruts
R avoid sudden steering mo vements
R brake careful ly
% Also obser vethe no tes on regula rly ch ecking
wheels and tyres (/ page 396). N
No
ot
tes on dr
es on dr iving t
iving thr
hrough w
ough w at
ater on t
er on t he r
he road sur-
oad sur-
f
f ace
ace
Wa ter which has entered theve hicle can damage
th e drive system, electrics and transmission.
Obser vethefo llowing if you must drive thro ugh
wa ter:
R The water,when calm, may only reach the
lo we r edge of theve hicle body.
R Drive at walking pace at most; water can oth-
erwise enter theve hicle interior.
R Vehicles tr avelling in front, or oncoming vehi-
cles, can create waves which may exceed the
maximum permissible dep thofthewa ter.
The braking e.ect of the brakes is reduced aTer
fo rd ing. Brake carefully while paying attention to
th e tra1c conditions until braking po wer has been
fully restored. F
F
unction of r
unction of r ear axle st
ear axle steer
eering
ing %
This function is an on-demand feature
(/ page 24). The
rear axle steering is an elect romechanical
auxiliary steering on there ar axle which adjusts
th e steering of there ar wheels according tothe
position of the front wheels, depending on the
speed. This results in greater manoeuvrability and
impr oved driving stability, e.g. when cornering.
Re ar axle steering has thefo llowing characteris-
tics:
R reduced steering e.ort and turning circle
re sulting in reduced parking e.ort
R impr oved driving stability, e.g. when cornering
R more direct steering resulting in impr oved
handling of theve hicle
Obser vethe no tes on snow chains and snow
ch ain mode (/ page 397). Driving and parking
183
183
EC
EC
O displa
O displa y function
y function The ECO display sho
wsanevaluation of your driv-
ing style on the driver's display depending on the
situation. This enables youto check the e1ciency
of your driving style and adjust it if necessar y.The
ECO display menu shows a ball 2that will roll
fo rw ards or backwards on a st ylised road in the
direction of tr avel according tothe driving charac-
te ristics.
Ab ove and below thero ad, lines mark the area for
an e1cient driving st yle 3. Ball 2will light up in
gr een if it is rolling within these lines. Outside the
lines, the ball will light up in orange. The ECO display assesses
thefo llowing criteria for
an economical driving st yle:
R coasting at theright time
R consistent speed
R moderate accele ration
The overall assessment of your driving style "from
start" is indicated using stars 1. It starts with
/ve em ptystars, which you can /ll one aTer the
ot her if you drive e1cientl y.When all /ve stars are
/lled, a glow will appear in the backg round.
% You can call up theECO display function via
th eClassic menu (/ page 300). R
R
ecuper
ecuper ativ
ative br
e br ak
ake syst
e syst em
em F
F
unction of t
unction of t he r
he recuper
ecuper ativ
ative br
e br ak
ake syst
e syst em
em
Depending on the selected recuperation le vel,the
electric mo tors are operated as an alternator
when in overrun mode and during braking in order
to charge the high-voltage battery while driving.
As soon as youta ke your foot o. the accelerator
pedal when theve hicle is in motion and in trans-
mission position h,recuperation in overrun
mode is initiated. The higher
there cuperation, the more sharply the
ve hicle is braked when coasting and the more
electrical energy is fed into the high-voltage bat-
te ry.
The deceleration in overrun mode may not be suf-
fi cient depending on the driving conditions. Also
brake with the service brake if necessar y.Alw ays
adapt your speed tothe driving conditions and
ke ep a su1cient distance.
The recuperative brake system has thefo llowing
ch aracteristics:
R supports braking with elect ronically cont rolled
brake forc e boosting
R con verts th e kinetic energy of theve hicle into
elect ric energy
% Ifyo u brake hard, the mechanical brake is
also used. This means that the maximum
re cuperative energy cann otbe reco vered. The
more you drive and brake in an anticipatory
manner, the more e1cient lyenergy can be
re cuperated. 184
184
Driving and parking
Syst
Syst
em limits
em limits
The braking e.ect of the electric mo tor during
re cuperation in overrun mode may be reduced or
may not be available at all in thefo llowing situa-
tions:
R when the high-voltage battery charge level
increases
R ifth e high-voltage battery is not yet at a nor-
mal operating temp erature
In these cases, the desired deceleration is set by
th e brake control system.
Manuall
Manuall y se
y setting r
tting r ecuper
ecuper ativ
ative deceler
e deceler ation
ation
Yo u can use the steering wheel gearshiT paddles
to manually adjust the intensity of recuperation in
ove rrun mode. %
When theve hicle is star ted again, his auto-
matically set as there cuperation le vel.
The following recuperation le vels are available:
R hà Intelligent and anticipa tory recupera-
tion with ECO Assist (/ page 185)
R hq Norecuperation: theve hicle coasts,
ro lls freely
R h Normal recuperation (standard setting) R
h± Increased recuperation: increased
decele ration in overrun mode #
T
To incr
o incr ease r
ease r ecuper
ecuper ation:
ation:brie0y pull gearshiT
paddle 1. #
T
To r
o r educe r
educe r ecuper
ecuperation:
ation:brie0y pull gearshiT
paddle 2. #
T
To select
o select hÃ: pull and hold gearshiT pad-
dle 1 or2.
The driver's displ aysho ws th e currently selected
re cuperation le vel next tothe transmission posi-
tion displa y. EC
EC
O Assist
O Assist EC
EC
O Assis
O Assis t function
t function
ECO Assist is only an aid. It is not a substitute for
yo u paying attention toyour sur roundings and
does not relie ve you of your responsibility per tain-
ing toroad tra1c la w.The driver is responsible for
ke eping a safe distance from theve hicle in front,
fo rve hicle speed and for braking in good time. Driving and parking
185
185
&
W
WARNI NG
ARNI NGRisk of accident if ECO Assist
does not pr ovide su1cient deceleration
ECO Assist only brakes your vehicle when you
ta ke your foot o. thega s pedal. If vehicles are
de tected late, e.g. aTer tight cur ves, or if you
do not react immediately tothe ECO Assist
displa y,the deceleration may not be su1cient. #
React prom ptly to the ECO Assist recom-
mendation and take your foot o. thegas
pedal. #
Adjust your speed tothe driving condi-
tions and maintain a suitable distance
from theve hicle in front. #
Brake theve hicle yourself and/or take
ev asive action. ECO Assist is active only in
hÃ
(/ page 185).
Depending on theve hicle's equipment, ECO
Assist anal yses data forth eve hicle's expected
ro ute. This allo ws the system tooptimally adjust
th e driving style forth ero ute ahead, use minimal
energy and recuperate as much as possible. If the
system has de tected an event ahead or a vehicle in front and
theve hicle is approaching theev ent,
ECO Assist calculates the optimised speed pro/le
based on the distance, speed and available route
information.
If yo ure lease the accelerator pedal in this case,
intelligent recuperation starts in overrun mode. If
ECO Assist has de tected a vehicle tr avelling in
front or a stationary vehicle ahead, it can brake
yo ur vehicle toa standstill. This may be the case,
fo rex ample, at the end of a tra1c jam or if the
de tected vehicle ahead stops in front of you.
If th e deceleration pr ovided byECO Assist is not
su1cient, you must also brake with the service
brake.
At low speeds, e.g. in a multi-stor eycar park or on
play st reets, no adjustment is made for stationary
ve hicles and therefore there is no displa y. 1
"Foot o. the accelerator" recommendation
2 Route event ahead
% ECO Assist can also be shown on the head-up
displa y.
If a route event ahead or a vehicle in front that
re qu ires an adjustment of your driving style is
de tected, cor responding symbol 2and theý
symbol (g rey) are displa yed.
If yo ure lease the accelerator pedal, theý
symbol turns green and recuperation in overrun
mode is initiated. 186 186
Driving and parking
T
T
r
ransmission
ansmission DIRECT SELECT lev
DIRECT SELECT lev
er
erF
F
unction of t
unction of t he DIRECT SELECT lev
he DIRECT SELECT lev er
er&
W
W ARNING
ARNING Risk of accident and injury due
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R get out and be struck byoncoming tra1c.
R operate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. Use
the DIRECT SELECT le verto switch the trans-
mission position. The cur rent transmission posi-
tion is displa yed on the driver's displa y. j
Park position
k Reversege ar
i Neutral
h Drive position
Eng
Eng aging rev
aging rever
er se g
se g ear R
ear R #
Depress the brake pedal and push the DIRECT
SELECT le ver upwards past the /r stpoint of
re sis tance. Driving and parking
191
191
Eng
Eng
aging neutr
aging neutr al N
al N #
Depress the brake pedal and push the DIRECT
SELECT le ver up or down tothe /rst point of
re sis tance, holding it there until the transmis-
sion position iis shown on the driver's dis-
pla y.
Subse quently releasing the brake pedal will allow
yo uto mo vetheve hicle freel y,e.g. topush it or
to w it away.
If y
If y ou w
ou w ant t
ant the tr
he tr ansmission t
ansmission t o r
o remain in neutr
emain in neutr al
al
N ev
N even if t
en if t he v
he vehicle is switc
ehicle is switc hed
hedo.:
o.: #
Start theve hicle. #
Depress the brake pedal and engage neutral
i. #
Release the brake pedal. #
Switch o. theve hicle.
% Ifyo uth en exitth eve hicle leaving theke y in
th eve hicle, the transmission will remain in
neut rali.
Eng
Eng aging par
aging par k position P
k position P #
Obser vethe no tes on parking theve hicle
(/ page 212). #
Depress the brake pedal until theve hicle
comes toa standstill. #
When theve hicle is at a standstill, press but-
to nj.
Pa rk position is only engaged when the trans-
mission position display jis shown in the
driver's displa y.If no transmission position dis-
play jappears, secure theve hicle toprev ent
it from rolling away.
Pa rk position jis engaged automatically if one
of thefo llowing conditions is met:
R You switch theve hicle o. in transmission posi-
tion hork.
R You open the driver's door when theve hicle is
at a standstill or when driving at a very low
speed and the transmission is in position h
or k.
% Tomanoeuv rewith an open driver's door,
open the driver's door while at a standstill and
engage transmission position hork again.
% Ifyo u ha veengaged park position jor
switched o. theve hicle and no transmission position displ
ayis displa yed, secure theve hi-
cle from rolling away (/ page 215).
Eng
Eng aging dr
aging dr iv
ive position D
e position D #
Dep ress the brake pedal and push the DIRECT
SELECT le ver down past the /r stpoint of
re sis tance. F
F
unction of t
unction of t he 4MA
he 4MATIC
TIC
The 0exible all-wheel distribution of the 4MATIC
means the drive is alw ays ideal lydist ributed
between bo thaxles. Depending on the situation,
only the front axle or only there ar axle can be
driven, or the drive can be distributed continu-
ously between bo thaxles.
This means that recuperation can be used even
more e.ectively and thera nge of theve hicle can
be increased (/ page 184).
To get her with ESP ®
and 4ETS, 4MATIC impr oves
th e traction of your vehicle whene ver a driven
wheel spins due toinsu1cient traction.
If yo ufa ilto adapt your driving style, 4MATIC can
neither reduce therisk of an accident nor override
th e la wsof ph ysics. It cannot take into account 192
192
Driving and parking
#
Select Add new time andthen set and sa ve
th e times forth e beginning and end of the
break. #
Activate or deactivate thech arging breaks that
ha ve been set.
Set charging breaks can be edited with the´
button or dele ted with theE button. P
P
ar
ar king
king P
P
ar
ar king t
king t he v
he vehicle
ehicle &
W
WARNING
ARNING Risk of accident and injury
caused byan insu1ciently secured vehi-
cle rolling away
If th eve hicle is not securely par ked su1-
cient ly,it can rollawa y in an uncontrolled way
eve n at a slight downhill gradient. #
On uphill or downhill gradients, turn the
front wheels so that theve hicle rolls
to wa rdsth eke rb if it starts moving. #
apply the parking brake. #
Switch the transmission toposition j. &
W
WARNING
ARNING Risk of accident and inju rydue
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R get out and be struck byoncoming tra1c.
R operate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. *
N
NOOTE
TE Damage totheve hicle due toitro ll-
ing away #
Always secure theve hicle against rolling
awa y. *
N
NO
O TE
TE Damage caused byvehicle being
lo we red V
V
ehicles AIRMA
ehicles AIRMA TIC:
TIC:Thevehicle can be lo w-
ered due todi.erences in temp erature or
ex tended non-operational times. This can
cause damage toparts of the body. #
When stopping theve hicle and when
driving o., make sure that there are no
obstacles such as kerbs under or in the
immediate vicinity of the body. %
Ifyo u park theve hicle for a long period,
obser vethefo llowing no tes:
R Make sure the high-voltage battery has a
su1cient state of charge , especially at
ve ry low outside temp eratures. In this way
yo u can avoid any problems when the
ve hicle is subsequently star ted. 212
212
Driving and parking