Operation Vehicles without
Keyless AccessVehicles with
Keyless Access
6.
If the engine does not
start, stop and wait for around 1 minute to try again.If the engine does not
start, stop and wait for around 1 minute to try again. If necessary,
perform an emergency start ››› page 187.
7.Disconnect the electronic parking brake when you
are about to start driving ››› page 189. WARNING
Never leave the vehicle unattended if the en-
gine is ru
nning. The vehicle could move off
suddenly, especially if it is in gear, resulting
in an accident and serious injury. WARNING
Cold start sprays could explode or cause a
sud den inc
rease in the engine speed.
● Never use start boosters. CAUTION
● An attempt t
o start the engine while driving
or starting the engine immediately after turn-
ing it off can cause damage to the engine or
starter motor.
● When the engine is cold, avoid high revs
and heavy ac
celeration and do not make the
engine work hard. ●
Do not p u
sh or tow start the engine. Un-
burnt fuel could damage the catalytic con-
verter. For the sake of the environment
Do not warm the engine at idle speed; start
driv ing immedi
ately if the visibility is OK.
This helps the engine reach operating tem-
perature faster and reduces emissions. Note
● For e x
ample, if the key battery is very worn
or flat, the engine cannot be started with the
starter button. In this case, remove the igni-
tion button from the lock and insert the key.
● Electrical devices with a high power con-
sumption are sw
itched off temporarily when
the engine starts.
● When the engine is started cold, there may
be stron
g vibrations for a few moments for
technical reasons. This is quite normal, and
no cause for concern.
● At temperatures below +5°C (+41°F),
smoke ma
y be given off below the vehicle
when the additional heater is connected. Stopping the engine
Complete operations only in the sequence
giv
en:
Vehicles without
Keyless AccessVehicles with
Keyless Access
1.Bring the vehicle to a full stop ››› .
2.Press and hold the brake pedal until the step 4 is
performed.
3.If the vehicle has an automatic gearbox, place theselector lever in position P.
4.Connect the electronic parking brake ››› page 189.
5.Turn the vehicle key in
the ignition lock to po-
sition ››› Fig. 199 1
.
Briefly press the start-
up button
››› Fig. 200. If
the engine fails to
switch off, perform an
emergency disconnect
››› page 187.
6.If the vehicle is equipped with a manual gearbox,
put it into 1st or reverse. WARNING
Never switch off the engine while the vehicle
is mo
ving. You may lose control of the vehicle
and there is a risk of serious accident.
● The airbags and belt tensioners do not
work when the ignition i
s switched off.
● The brake servo does not work with the en-
gine off. T
o stop, the brake pedal must be
pressed with more force.
● As the power steering does not work if the
engine is
not running, you will need more
strength to steer than normally. 188
Operation
● The c ontr
o
l lamps on the button and
on the instrument panel go out.
Automatic release of the electronic parking
brake on starting the engine
The electronic parking brake is automatically
released when the vehicle starts moving, if
the driver door is closed and the driver is
wearing his/her seat belt. In addition, in ve-
hicles with a manual gearbox the clutch ped-
al should also be pressed to the floor before
starting the engine so that the system recog-
nises that the parking brake should be re-
leased.
Emergency braking function
Only use the emergency braking function if
the vehicle cannot be stopped with the brake
pedal ››› !
● Pull button h
ard to stop the vehicle. The
w arnin
g display will be accompanied by the
corresponding audible warning.
● To stop the braking process, release the
button or pr
ess the accelerator. WARNING
The incorrect use of the electronic parking
brak e m
ay result in serious accident.
● Never use the electronic parking brake to
brake the
vehicle except in an emergency.
The braking distance is considerably longer, because braking is only applied to the rear
wheels. A
lw
ays use the foot brake.
● Never accelerate from the engine compart-
ment with the en
gine running and a gear or a
gear range engaged. The vehicle could move,
even if the parking brake is applied. Note
● In vehic
les with a manual gearbox: when
the clutch pedal is released and the accelera-
tor pressed at the same time, the electronic
parking brake is automatically released.
● If the vehicle battery is flat, it will not be
poss
ible to disconnect the electronic parking
brake. Use the jump-start ›››
page 51.
● When the electronic parking brake is ap-
plied or rel
eased, noises may be heard.
● If the electronic parking brake has not been
used for a lon
g while, the system sometimes
performs automatic and audible checks while
the vehicle is at a standstill. Parking
When parking your vehicle, all legal require-
ments
shou
l
d be observed.
To park the vehicle
Complete operations only in the sequence
given. ● Park the vehicle on a suitable surface ›››
.●
Pr e
s
s and hold the brake pedal until the ve-
hicle comes to a standstill.
● Connect the electronic parking brake
›››
page 191.
● For an automatic gearbox, move the selec-
tor lev
er to position P.
● Switch off the engine and release the brake
pedal.
● R
emove the key from the ignition.
● If necessary, turn the steering wheel slight-
ly to loc
k the steering.
● With a manual gearbox, engage 1st gear on
flat gr
ound and slopes, or even reverse gear
on hills, and release the clutch pedal.
● Ensure that all passengers leave the vehi-
cle, e
specially children.
● When leaving the vehicle, take all keys with
you.
● Loc
k the vehicle.
Additiona
l information for steep slopes and
hills
Before switching off the engine, rotate the
steering wheel so that if the vehicle should
move, it will be held by the kerb.
● On slopes, turn the front wheels so that
they are ag
ainst the edge of the kerb.
● Uphill, turn the wheels towards the centre
of the r o
ad.
192
Driving
WARNING
Rapid acceleration can cause loss of traction
and skid din
g, especially on slippery ground.
This could cause loss of control of the vehicle
resulting in an accident and considerable
damage.
● Only use the kick-down function or rapid
accel
eration if visibility, weather, road and
traffic conditions so permit. WARNING
Do not allow the brakes to “rub” for a pro-
long ed period of
time, or brake frequently or
for long periods of time. Continuous braking
heats up the brakes. This could significantly
reduce braking power, increase braking dis-
tance or even result in the total failure of the
brake system. Control and warning lamps
It lights up red
Brake pedal not
pressed!Press brake pedal to the floor.
It lights up green
Brake pedal not
pressed.To select a range of gears, press
the brake pedal.
Please also see "Electronic park-
ing brake"
››› page 189.
Flashes green
The selector lever
locking button has
not engaged. The
vehicle does not
start to move.
Engage the selector lever lock
››› page 196. Several warning and indication lamps light
up for a f
ew sec
onds when the ignition is
switched on, signalling that the function is
being verified. They will switch off after a few
seconds. WARNING
Observe the safety warnings ›››
in Warning
and indication l amp
s on page 105. Manual gear change
Read the additional information carefully
› ›
›
page 34
In some countries, it is necessary to press the
clutch pedal to the floor to start the engine.
Selecting reverse gear
Engage reverse gear only when the vehicle is
stopped. WARNING
When the engine is running, the vehicle will
st ar
t to move as soon as a gear is engaged and the clutch released. This is also the case
with the el
ectr
onic parking brake on.
● Never engage the reverse gear when a vehi-
cle i
s moving forward. CAUTION
To prevent damage and avoid premature
w ear
, please observe the following:
● While driving, do not leave your hand rest-
ing on the ge
ar stick. The pressure applied by
your hand is transmitted to the gearbox se-
lector forks.
● Always ensure that the vehicle is complete-
ly st
opped before engaging the reverse gear.
● When changing gear, always make sure the
clutc
h pedal is pushed right to the floor.
● Never hold the vehicle “on the clutch” on
hill
s with the engine on. 195
Technical data
Advice
Operation
Emergencies
Safety
Driver assistance systems
● Do not s
t
op in the water, use reverse gear
or switch off the engine.
● Oncoming traffic will cause waves which
raise the l
evel of the water, making it difficult
to cross the water.
The Start/Stop system must be deactivated
when driving through flooded areas WARNING
When driving through water, mud, melted
sno w
, etc., please remember that due to
damp or frozen brake discs and shoes in win-
ter, the braking effect may be delayed, there-
fore the required braking distance is greater.
● “Dry the brakes and remove ice” by braking
caref
ully. Ensure that you are not endanger-
ing other road-users or breaking traffic regu-
lations in the process.
● After driving through water, avoid sudden
sharp manoeu
vres. CAUTION
● Drivin g thr
ough flooded areas may severely
damage vehicle components such as the en-
gine, transmission, drive train or electrical
system.
● Never drive through salt water as salt cau-
ses c
orrosion. Always rinse any parts of the
vehicle which have been in contact with salt
water. Driver assistance systems
Br ak
in
g and stability systems
Brake assist systems The brake assist systems ESC, ABS, BAS, ASR
and EDL on
ly
operate when the ignition is
switched on. They contribute significantly to
increasing active safety.
Electronic Stability Control (ESC)
ESC reduces the risk of skidding and increa-
ses the vehicle stability by braking individual
wheels under specific driving conditions. ESC
detects critical handling situations, such as
understeer, oversteer and wheelspin on the
driven wheels. The system stabilises the ve-
hicle by braking individual wheels or by re-
ducing the engine torque.
The ESC has limits. It is important to realise
that the ESC is also subject to the laws of
physics. ESC will not be able to deal with all
situations with which drivers may be faced.
For example, if the road surface changes sud-
denly then ESC will not be useful in all cases.
If the vehicle suddenly enters a section cov-
ered by water, mud or snow then ESC will not
provide assistance in the same way as on dry
ground. If the vehicle loses its grip on the
ground and moves on a film of water (“aqua-
planing”), the ESC will not be able to assist the driver to control the vehicle as the loss of
adher
enc
e with the road surface will prevent-
ing braking and steering. If the vehicle is
driven through series of bends at high
speed, the ESC will not always be as effec-
tive: the vehicle reaction to aggressive driv-
ing is not the same as at reduced speeds.
When driving with a trailer, ESC does not pro-
vide the same amount of vehicle control as
without a trailer.
Adjust your speed and driving style to road,
traffic and weather conditions. ESC cannot
push the limits of the laws of physics; im-
prove the transmission available or maintain
the vehicle on the road if a lack of driver at-
tention creates an inevitable situation. Other-
wise, ESC assists in maintaining vehicle con-
trol in extreme situations and uses the move-
ments of the steering made by the driver to
maintain the vehicle moving in the desired
direction. If the vehicle is driven at such a
speed that it will leave the road before ESC
can intervene then the system cannot pro-
vide assistance.
The ABS, BAS, ASR and EDL systems are in-
corporated into the ESC. The ESC is always
on. The ESC should only be turned off using
the ASR button ›››
Fig. 206 when traction is
insufficient. Always remember to turn on the
ASR once more when the vehicle has traction
again. »
205
Technical data
Advice
Operation
Emergencies
Safety
Operation
Start assist systems Intr oduction WARNING
The intelligent technology in the start assist
sys t
ems cannot change the laws of physics.
The improved comfort provided by start as-
sist systems should not prompt you to take
risks.
● Unintentional movements of the vehicle
coul
d cause serious injury.
● The start assist systems are not a replace-
ment for driv
er awareness.
● Always try to adapt the speed of the vehi-
cle and
your style of driving to the condition
of the ground or the road and to weather and
traffic conditions.
● The start assist system cannot keep the ve-
hicle s
tationary in all conditions on a gradi-
ent or cause it to brake on steep downhill
gradients, e.g. if the road is slippery or icy. Auto Hold function*
Fig. 207
Detailed view of the centre console:
Aut o Ho
l
d button The control lamp on the button switches on
when the Aut
o Ho
l
d function is on.
When the Auto Hold function is on, this helps
the driver if they must regularly stop the vehi-
cle or if they must stop with the engine run-
ning for prolonged periods, for example, on
hills, before a traffic light or in traffic jams
with continuous stopping and starting.
The Auto Hold function automatically pre-
vents the vehicle from rolling away acciden-
tally when at a standstill, without the driver
having to keep his/her foot on the brake ped-
al.
When the system that detects that the vehi-
cle has stopped, the Auto Hold keeps the ve-
hicle at a standstill. The brake pedal can be
released. If the driver presses the brake pedal briefly or
the accel
erator to start off, the Auto Hold
function releases the brake once more. The
vehicle moves according to the gradient.
If any of the conditions necessary for the Au-
to Hold function change while the vehicle
stopped, the system is turned off as is the in-
dicator on the button ››› Fig. 207. The elec-
tronic parking brake engages where necessa-
ry to park the vehicle safely ››› .
C ondition
s
for keeping the vehicle at a
standstill with Auto Hold:
● The driver door must be closed.
● The driver seat belt must be buckled.
● The engine must be running.
● The ASR system is switched on
›››
page 189.
Automatically engaging and disengaging the
Auto Hold function
If the Auto Hold function was engaged with
the AUTO HOLD button before disengaging the
ignition, the f u
nction w
ill automatically re-
main engaged after the ignition is re-engag-
ed.
If the Auto Hold function was not disengag-
ed, it will automatically remain disengaged
after the ignition is engaged.
208
Driver assistance systems
Permanent Auto Hold connection
The Aut o Ho
l
d function must be switched on
every time the engine is started. However, to
switch the Auto Hold function on permanent-
ly, the mark must be switched on in the Set-
tings menu, “Autohold” submenu
››› page 26.
Auto Hold works automatically under the fol-
lowing conditions:
All points must be fulfilled simultaneously
››› :
Manual gearboxAutomatic gearbox
1.If the vehicle is stopped using the brake pedal on a
flat or slope.
2.The engine must be “running smoothly”.
3.On a slope, the 1st gear
is engaged uphill or the
reverse gear is engaged
for a downhill. The
clutch must be held
down.A gear for driving is se-
lected from R, D or S.
Upon accelerating and
pressing in the clutch
simultaneously, the
brake releases gradual-
ly.Upon accelerating, the
brake releases gradual-
ly. Auto Hold turns off automatically under the
f
o
l
lowing conditions:
Manual gearboxAutomatic gearbox
1.If one of the conditions mentioned in table on
page 209 changes.
2.If the engine is “not running regularly” or if there is a malfunction.
3.When changing to idle
speed.If the selector lever is
placed in neutral (N).
4.If the engine is turned
off or stalls.If the engine is switch-
ed off.
5.If the driver accelerates
while pressing the
clutch in.If the vehicle is acceler-
ated.
6. When one of the wheels
has minimal contact
with the ground (e.g. on
uneven ground). WARNING
The Auto Hold technology is limited by the
la w
s of physics. The improved comfort provi-
ded by Auto Hold should never prompt you to
take risks.
● Never leave the vehicle running and with
the Auto Hol
d function switched on.
● Auto Hold cannot always stop the vehicle
uphill
and downhill (e.g. if the ground is slip-
pery or frozen). CAUTION
Before entering an automatic car wash, al-
wa y
s switch the Auto Hold function off, as it
could be damaged when the electronic park-
ing brake automatically engages. Start-Stop Function*
Fig. 208
Detailed view of the centre console:
St ar
t
-Stop function button With the Start-Stop system enabled, the en-
gine i
s
aut
omatically stopped when the vehi-
cle is at a standstill. The engine restarts auto-
matically when required.
The function is enabled automatically when-
ever the ignition is switched on. The instru-
ment panel displays information on the cur-
rent status. »
209
Technical data
Advice
Operation
Emergencies
Safety
Operation
Vehicles with a manual gearbox
● When the vehicle is at a standstill, leave it
in neutr al
and t
ake your foot off the clutch.
The engine switches off.
● Simply depress the clutch pedal to move
off again.
V
ehicles with an automatic gearbox
● When the vehicle is at a standstill, depress
the brake or k
eep it pressed down. The en-
gine switches off.
● The engine will start again as soon as you
rele
ase the brake pedal.
● With the selector lever set to position P, the
engine wi
ll not start until a range of gears is
selected or the accelerator pedal is de-
pressed.
Important conditions for the engine to auto-
matically switch off
● The driver seat belt must be buckled.
● The driver door must be closed.
● The bonnet must be closed.
● The factory-fitted towing bracket must not
be electrical
ly connected to a trailer.
● A minimum engine temperature has been
reac
hed.
● The steering wheel must not be turned
more than 270 de
grees.
● The vehicle has moved since the last stop. ●
In vehic
les with Climatronic: the tempera-
ture inside the vehicle is within the pre-set
temperature range.
● The temperature set is neither very high nor
very
low.
● The air conditioning defrost function is not
switc
hed on.
● In vehicles with Climatronic: the blower has
not been manual
ly set to a high speed.
● The power level of the vehicle's battery is
sufficient
.
● The vehicle's battery temperature is neither
too high nor too lo
w.
● The vehicle is not on a steep gradient or
slope.
● The front
wheels are not overly turned.
● The heated windscreen is not switched on.
● Reverse gear is not engaged.
● The park assist system is not switched on.
Conditions
for automatically restarting the
engine
The engine may automatically restart under
the following conditions:
● If the vehicle interior is too hot or too cold.
● If the vehicle moves.
● If the vehicle's battery voltage drops. Conditions requiring the key to restart the
engine
The engine mu
st be started manually under
the following conditions:
● If the driver unbuckles his/her seat belt.
● If the driver door is opened.
● If the bonnet is opened.
● In vehicles with a manual gearbox: if a gear
has
been selected.
Switching Start-Stop mode on and off man-
ually
● Press the button on the centre console
› ›
›
Fig. 208.
● The button will light up when the Start-Stop
function i
s switched off.
The engine will start immediately if the vehi-
cle is in Stop mode when it is switched off
manually. WARNING
The brake servo and the power steering do
not w ork
when the engine is switched off.
● Never allow the vehicle to move when the
engine is
switched off. CAUTION
Using the Start-Stop function for a long peri-
od at v
ery high outside temperatures could
damage the vehicle's battery. 210
Driver assistance systems
Optical parking system* (OPS) Fig. 211
On-screen OPS display: A has de-
t ect
ed an o
bstacle in the collision zone; Bhas detected an obstacle in the segment;
Czone recorded behind the vehicle.
Fig. 212
On-screen OPS display: A has de-
t ect
ed an o
bstacle in the segment; B restric-
t ed ar e
a in front of the vehicle. The optical parking system is an accessory to
the P
ark
in
g distance warning system ›››
page 212 and the park assist system
››
› page 214.
The zone recorded by the sensors in front of
and behind the vehicle is displayed on the
factory-fitted radio or navigation system
screen. Any obstacles are displayed in rela-
tion to the vehicle ››› .
FunctionNecessary operations
Switching the
display on:Switch on the parking distance
warning system
››› page 212 or the
park assist system ››› page 214. The
OPS switches on automatically.
Switching the
display off man-
ually:Press a zone selection button on the
factory-fitted radio or navigation
system
OR: briefly press the function button
or RVC on the screen.
Switching the
display off man-
ually:
Drive forwards at more than about
10-15 km/h (6-9 mph).
Select the reverse gear on vehicles
with rear assist
››› page 217. The
display changes to the image of the
camera. Zones explored
The
z
one in whic
h obstacles are recognised
runs to a distance of around 120 cm from the
front of the vehicle and up to 60 cm to the
side ›››
Fig. 212 B . Behind the vehicle, the
z one an
aly
sed reaches a distance of up to
160 cm and around 60 cm to the sides
››› Fig. 211 C .Screen display
The im
ag
e di
splayed represents the super-
vised zones in several segments. As the vehi-
cle moves closer to an obstacle, the segment
moves closer to the vehicle displayed
››› Fig. 211 B and
›››
Fig. 212
A . When the
penu ltim
at
e segment is displayed, this
means that the vehicle has reached the colli-
sion zone. Stop the vehicle!
Distance from the
vehicle to the ob-
stacleAudible
warn- ing
Displayed in
colour on the
screen: colour
of the segment if an obstacleis recognised
Front: approx. 31 -120 cm
Behind: approx. 31 -
160 cmBeeping soundYellow
Approximately 0 –
30 cm in front or be-
hind a)Perma-
nent
soundRed
a) The permanent sound starts at a somewhat greater distance
on vehicles with a factory-fitted towing bracket.
With towing bracket
A specific image is displayed on the screen of
vehicles with a factory-fitted towing bracket
and an electrically connected trailer. In this
case, the distances behind the vehicle are
not indicated. »
213
Technical data
Advice
Operation
Emergencies
Safety