
Driving
Driving St ar
tin
g and stopping the en-
gine
Ignition key positions Fig. 175
Ignition key positions. Read the additional information carefully
› ›
›
page 31
Ignition switched off, steering lock
In this position ››› Fig. 175 1 the ignition
and the en gine ar
e off
and the steering may
be locked.
For the Steering lock to operate without the
ignition key, turn the steering wheel until it
locks with an audible sound. You should al-
ways lock the steering wheel when you leave
your vehicle. This will help prevent vehicle
theft ››› . Switching the ignition or the glow plug sys-
t
em on
T urn the ignition k
ey to this position and re-
lease it 2 . If the key cannot be turned or it is
diffic u
lt
to turn from position 1 to position
2 , move the steering wheel from one side to
the other; thi s
w
ill release it.
Starting
The engine is started when the key is in this
position 3 . Electrical devices with high pow-
er c on
s
umption are switched off temporarily
at the same time.
Each time that the vehicle is restarted, the ig-
nition key must be turned to position 1 . The
r epetitiv
e s
tart prevention lock of the igni-
tion prevents possible damage to the starter
motor if the engine is already running. WARNING
● The ignition key mu
st NOT be removed from
the lock until the vehicle comes to a stand-
still. Otherwise, the steering could be imme-
diately blocked- Risk of accident!
● Always remove the key from the ignition
when leav
ing the vehicle, even if only for a
short period. This is especially important if
children or disabled people are left alone in
the vehicle. They could accidentally start the
engine or work electrical equipment such as
the electric windows, resulting in an acci-
dent. ●
Uns uper
vised use of the key could start the
engine or any electrical system, such as the
electric windows. This could result in serious
injury. CAUTION
The starter motor will only work when the en-
gine i s s
topped (ignition key position 3 ).
Starting petrol engines
The engine can only be started using a genu-
ine
S
EA
T key with its correct code.
– Move the gearbox lever to the neutral posi-
tion and depres
s the clutch pedal thor-
oughly and hold it in this position for the
starter to turn the engine on.
– Turn the ignition key to the starting posi-
tion ›››
Fig. 175 3 .
– Let go of the ignition key as soon as the en-
gine s t
ar
ts; the starter motor must not run
on with the engine.
After starting a very hot engine, you may
need to slightly press down the accelerator.
When starting a cold engine, it may be a little
noisy for the first few seconds until oil pres-
sure has built up in the hydraulic valve com-
pensators. This is quite normal, and no cause
for concern. »
173
Technical data
Advice
Operation
Emergencies
Safety

Driving
● the driv er door i
s
opened.
After automatically turning off the ignition, if
the dipped beam is on, the side light re-
mains on for approx. 30 minutes (if the bat-
tery is sufficiently charged). If the driver locks
the vehicle or manually turns off the light, the
side light goes out. WARNING
Any accidental movement of the vehicle could
re s
ult in serious injury.
● When switching on the ignition, do not
pre
ss the brake or clutch pedal, otherwise
the engine could start immediately. WARNING
If vehicle keys are used negligently or with-
out due c ar
e, this may cause accidents and
serious injury.
● Never leave any key inside the vehicle
when exitin
g. Otherwise, a child or unauthor-
ised person could lock the vehicle, start the
engine or connect the ignition and, in this
way, operate electronic equipment (e.g. the
windows). Note
● Bef or
e leaving the vehicle, always discon-
nect the ignition manually and, if appropri-
ate, take into account the instructions on the
screen of the dash panel. ●
If the v
ehicle is stationary for a long time
with the ignition on, the vehicle battery
might be discharged and it might not be pos-
sible to start the engine.
● In diesel vehicles, there may be a delay in
the engine st
arting if it requires preheating.
● If during the STOP phase you press the
STAR
T ENGINE STOP button, the ignition is
swit c
hed off and the button flashes.
● If the indication “Start-Stop system deacti-
vated:
Start the engine manually” is dis-
played on the dash panel display, the START ENGINE STOP button will blink.
Starting the engine
3 V
alid for vehicles: with starter button
StepStarting the engine with the starter
button ››› page 176.
1.Press and hold the brake pedal until step 5 is
performed.
1a.In vehicles with a manual gearbox: press
and hold the clutch down until the engine
starts.
2.Put the gearbox lever in neutral or the selec-
tor lever in position P or N.
StepStarting the engine with the starter
button ››› page 176.
3.
Briefly press the starter button ››› Fig. 176
without pressing the accelerator. For the en-
gine to start there must be a valid key in the
vehicle.
After starting the engine, the light of the START ENGINE STOP
button changes to a fixed
light indicating that the engine has started.
4.
If the engine does not start, stop and wait for
approx. 1 minute before trying again. If nec-
essary, perform an emergency start
››› page 176.
5.Disconnect the hand brake when you are
about to start driving ››› page 180. WARNING
Never leave the vehicle with the engine run-
ning, e s
pecially if a gear or gear range is en-
gaged. The vehicle could then suddenly move
or something strange could happen that
would cause damage, fire or serious injury. WARNING
Cold start sprays could explode or cause a
sud den inc
rease in the engine speed.
● Never use sprays to cold start the engine. CAUTION
● The st ar
ter motor or the engine may be
damaged if you try to start the engine while » 177
Technical data
Advice
Operation
Emergencies
Safety

Operation
driving or if you restart it immediately after
swit
c
hing it off.
● If the engine is cold, avoid high engine
speeds, p
ushing the engine too hard and rap-
id acceleration.
● Do not start the engine by pushing the ve-
hicle or t
owing it. Unburnt fuel could enter
the catalytic converter and damage it. Note
● Do not wait
until the engine warms up with
the vehicle stationary; if you have good visi-
bility through the windows, start driving im-
mediately. This helps the engine reach oper-
ating temperature faster and reduces emis-
sions.
● Electrical components with a high power
cons
umption are switched off temporarily
when the engine starts.
● When starting with a cold engine, noise
level
s may briefly increase. This is quite nor-
mal, and no cause for concern.
● When the outside temperature is below
+5°C (+41°F), if the en
gine is diesel, some
smoke may appear under the vehicle when
the fuel-operated auxiliary heater is on. Stopping the engine
3 Valid for vehicles: with starter button
StepSwitch off the engine with the starter
button
››› page 176.
1.Stop the vehicle completely ››› .
2.Press and hold the brake pedal until the step
4 is performed.
3.If you are driving an automatic vehicle, place
the selector lever in position P.
4.Apply the handbrake ››› page 180.
5.
Briefly press the start-up button ››› Fig. 176.
The START ENGINE STOP button blinks again. If
the engine fails to switch off, perform an
emergency disconnect ››› page 176.
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. This could cause loss of control of
the vehicle, accidents and serious injury.
● 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. Ther
efore, you need to press the
break pedal harder to brake the vehicle.
● Power steering does not work when the en-
gine is not
running. You need more strength
to steer when the engine is switched off. ●
If the ignition i s
switched off, the steering
column could be locked, making it impossible
to control the vehicle. CAUTION
If the engine is made to work hard for a long
time, it ma
y overheat after being switched
off. To prevent damage to the engine before
switching it off, leave it idle for approx. 2 mi-
nutes in neutral. Note
After switching off the engine, the cooling fan
ma y
continue to operate in the engine com-
partment for a few more minutes, even with
the ignition off. The radiator fan is automati-
cally switched off. “My Beat” Function
For vehicles with a convenience key there is
the “M
y
B
eat” function. This feature provides
an additional indication of the vehicle igni-
tion system.
When accessing the vehicle, e.g. by opening
the doors with the remote control, the START ENGINE STOP button flashes, calling at-
t ention t
o the r
elevant starter system button.
Upon switching the ignition on/off, the light
of the START ENGINE STOP button flashes. With
the en gine sw
it
ched off, after a few seconds,
178

Driving
exhaust emissions and noise levels all in-
c r
e
ase very rapidly at higher speeds. Driving
at moderate speeds will help to save fuel.
Avoid idling
It is worthwhile switching off the engine
when waiting in a traffic jam, at level cross-
ings or at traffic lights with a long red phase.
The fuel saved after only 30 - 40 seconds is
greater than the amount of fuel needed to re-
start the engine.
The engine takes a long time to warm up
when it is idling. Mechanical wear and pollu-
tant emissions are also especially high dur-
ing this initial warm-up phase. It is therefore
best to drive off immediately after starting
the engine. Avoid running the engine at high
speed.
Periodic maintenance
Periodic maintenance work guarantees that,
before beginning a journey, you will not con-
sume more than the required amount of fuel.
A well-serviced engine gives you the benefit
of improved fuel efficiency as well as maxi-
mum reliability and an enhanced resale val-
ue.
A badly serviced engine can consume up to
10% more fuel than necessary. Avoid short journeys
To reduc
e the consumption and emission of
polluting exhaust gases, the engine and the
exhaust gas filtration systems should reach
the optimum operating temperature.
With the engine cold, fuel consumption is
proportionally higher. The engine does not
warm up and fuel consumption does not nor-
malise until having driven approximately four
kilometres (2.5 miles). This is why we recom-
mend avoiding short trips whenever possi-
ble.
Maintain the correct tyre pressures
Bear in mind that keeping the tyres at an ad-
equate pressure saves fuel. If the tyre pres-
sure is just one bar (14.5 psi/100 kPa) too
low, fuel consumption can increase by as
much as 5%. Due to the greater rolling resist-
ance, under-inflation also increases tyre wear
wear and impairs handling.
The tyre pressures should always be checked
when the tyres are cold.
Do not use winter tyres all year round as they
increase fuel consumption by up to 10%.
Avoid unnecessary weight
Given that every kilo of extra weight will in-
crease the fuel consumption, it is advisable
to always check the luggage compartment to
make sure that no unnecessary loads are be-
ing transported. A roof rack is often left in place for the sake
of con
venience, even when it is no longer
needed. At a speed of 100 km/h (62 mph)
and 120 km/h (75 mph) your vehicle will use
about 12% more fuel as a result of the extra
wind resistance caused by the roof rack even
when it is not in use.
Save electricity
The engine activates the alternator, which
produces electricity. With the need for elec-
tricity, fuel consumption also increases. Be-
cause of this, always turn off electrical devi-
ces when you do not need them. Examples of
devices that use a lot of electricity are: the
blower at high speeds, the rear window heat-
ing or the seat heaters*. Note
● If y
our vehicle has Start-Stop, it is not rec-
ommended that you switch this function off.
● It is recommended that you close
the win-
dows when driving at more than 60 km/h
(37 mph).
● Do not drive with your foot resting on the
clutc
h pedal,, as the pressure can make the
plate spin, more fuel will be used and it can
burn the clutch plate lining, causing a serious
fault.
● Do not hold the car on a hill with the clutch,
use the foot
brake or hand brake, using the
latter to start. The fuel consumption will be » 199
Technical data
Advice
Operation
Emergencies
Safety

Operation
In the case of retrofitted tinted windows or
w indo
w
s with tinted film, the indications of
the external mirrors may not be seen clearly
or correctly.
Keep the external mirrors clean and free of
snow and ice, and do not cover them with ad-
hesives or other similar materials.
Radar sensors
The radar sensors are located on the left and
right of the bumper and are not visible from the outside
››› Fig. 202. The sensors monitor
both the blind spot and traffic behind the ve-
hicle ››› Fig. 203, ››› Fig. 204. The range to the
sides of the vehicle is a bit larger than the
width of a lane.
The lane width is not detected individually,
but is rather pre-configured in the system.
Thus if you are driving in wide lanes or in be-
tween two lanes, the indications may be in-
correct. Furthermore, the system can detect
vehicles driving in the lane next to you (if there are any), and can also detect stationary
obj
ects such as dividers, and thus give an in-
correct indication.
226

Advice
freezing. Apply silicone spray to the rubber
se al
s.
Af
ter washing the vehicle
– After washing, avoid sudden and sharp
brakin
g. “Dry” the brakes by braking sever-
al times. WARNING
● Wa sh
your vehicle with the ignition switch-
ed off.
● Protect your hands and arms from cuts on
sharp meta
l edges when cleaning the under-
body, the inside of the wheel housings etc.
Risk of injury.
● Water, ice and salt on the brake system can
reduce br
aking effectiveness. Risk of acci-
dent. CAUTION
● Never r emo
ve dirt, mud or dust if the vehi-
cle surface is dry. Never use a dry cloth or
sponge for cleaning purposes. This could
scratch the paintwork or glass on your vehi-
cle.
● Washing the vehicle in low temperatures:
when washin
g the vehicle with a hose, do not
direct water into the lock cylinders or the
gaps around the doors. Risk of freezing. For the sake of the environment
To protect the environment, the vehicle
shoul d be w
ashed only in specially provided
wash bays, to prevent toxic, oil-laden waste
water from entering the sewer system. In
some places, washing vehicles outside wash
bays is prohibited. Note
Do not wash the vehicle in direct sunlight. Washing the vehicle with a high pres-
s
ur
e c
leaner Be particularly careful when using a high
pr
e
s
sure cleaner!
– Always observe the instructions for the
high-pres
sure cleaner, particularly those
concerning the pressure and the spraying
distance.
– Increase the spraying distance for soft ma-
terial
s and painted bumpers.
– Do not use a high pressure cleaner to re-
move ic
e or snow from windows
››› page 263.
– Never use concentrated jet nozzles (“rotat-
ing jets”) ›
›› .–
Af t
er w
ashing, avoid sudden and sharp
braking. “Dry” the brakes by braking sever-
al times ››› page 179. WARNING
● Never w a
sh tyres with a concentrated jet
(“rotating nozzle”). Even at large spraying
distances and short cleaning times, damage
can occur to the tyres. This may cause an ac-
cident.
● Water, ice and salt on the brake system can
reduce br
aking effectiveness. Risk of acci-
dent. CAUTION
● Do not u se w
ater hotter than +60°C
(+140°F). This could damage the vehicle.
● To avoid damage to the vehicle, keep a suf-
ficient di
stance from sensitive materials such
as flexible hoses, plastic, soundproofing ma-
terial, etc. This also applies to bumpers pain-
ted in the colour of the bodywork. The closer
the nozzle is to the surface, the greater the
wear on the material. Factory-fitted adhesive sheets
The following indications should be taken in-
t
o ac
c
ount to avoid damaging adhesive
sheets:
● Do not use high pressure cleaners.
262

Care and maintenance
● Do not u
se s
crapers to remove ice or snow
from the sheets.
● Do not polish the adhesive sheets.
● Do not use dirty cloths or sponges.
● It is preferable to wash them with a soft
spong
e and gentle neutral soap.
Camera sensors and lenses ●
Use a small brush to remove snow and a
de-icer s pr
ay to remove ice.
● Clean the sensors with a solvent-free prod-
uct and a sof t, dr
y cloth.
● Moisten the camera lens using a standard
alcohol-b
ased glass cleaning agent and
clean the lens with a dry cloth. CAUTION
● When y ou c
lean the vehicle with a pressure
washer:
–Stay a suitable distance from the sensors
on the front and rear bumpers.
– Do not clean the camera lenses or sur-
rounding area with the pressure washer.
● Never use warm or hot water to remove
snow and ic
e from the reverse camera lens,
as it could crack the lens.
● Never use abrasive cleaning agents on the
lens. Vehicle paint maintenance
Regular waxing protects the paintwork.
You need t
o ap
ply wax to your vehicle if water
does not form small drops and run off the
paintwork when it is clean.
Good quality hard wax products are available
at your Technical Service.
Regular wax applications help to protect the
paintwork from environmental contaminants
››› page 260. It is also effective in protecting
against minor scratches.
Even if a wax solution is used regularly in the
vehicle washing tunnel, it is advisable to pro-
tect the paint with a hard wax coating at least
twice a year.
Polishing the paintwork Polishing is only necessary if the paint has
lo
s
t
its shine, and the gloss cannot be
brought back by applying wax. Polishing
products can be purchased in your Technical
Service.
The vehicle must be waxed after polishing if
the polish used does not contain wax com-
pounds to seal the paint ›››
page 263, Vehicle
paint maintenance . CAUTION
To prevent damage to the paintwork:
● Do not use polishes and hard wax on pain-
ted p ar
ts with a matt finish or on plastic
parts.
● Do not polish your vehicle in a sandy or
dusty
environment. Caring for plastic parts
If normal washing fails to clean plastic parts,
c
l
e
an them with approved solvent-free plas-
tic cleaning and care products. CAUTION
● The use of li
quid air freshener directly over
the air vents of the vehicle may damage the
plastic parts if the liquid is accidentally spil-
led.
● Cleaning products which contain solvents
wil
l damage the material. Cleaning of windows and mirrors
Cleaning windows
– Moisten the windows with commercially
av ai
l
able, alcohol based glass cleaner.
– Dry the windows with a clean chamois
leather or a lint
-free cloth. »
263
Technical data
Advice
Operation
Emergencies
Safety

Advice
Removing snow – Use a small brush to remove snow from the
windo
w
s and mirrors.
Removing ice – Use a de-icer spray.
Use a cl
ean cloth or chamois leather to dry
the windows. The chamois leathers used on
painted surfaces are not suitable to clean
windows because they are soiled with wax
deposits which could smear the windows.
If possible, use a de-icing spray to remove
ice. If you use an ice scraper, push it in one
direction only without swinging it.
Use window cleaner or a silicone remover to
clean rubber, oil, grease and silicone depos-
its off.
Wax deposits can only be removed with a
special cleaner available at your Technical
Service. Wax deposits on the windscreen
could cause the wiper blades to judder. Add-
ing a window cleaner that dissolves wax to
the windscreen washer fluid reservoir pre-
vents wiper blades from juddering, but the
wax deposits are not removed. CAUTION
● Never u se w
arm or hot water to remove
snow and ice from windows and mirrors. This
could cause the glass to crack! ●
The heatin g el
ement for the rear window is
located on the inner side of the window. To
prevent damage, do not put stickers over the
heating elements on the inside of the win-
dow. Cleaning windscreen wiper blades
Clean wiper blades improve visibility.
1. Use a soft cloth to remove dust and dirt
from the w ind
screen wiper blades.
2. Use window cleaner to clean the wind- scr
een wiper blades. Use a sponge or a
cloth to remove stubborn dirt.
Care of rubber seals If rubber seals are well looked after, they will
not
fr
eez
e so quickly.
1. Use a soft cloth to remove dust and dirt from the rubber seal
s.
2. Apply a specialist care product to the rub- ber seals.
The rubber s
trips on the doors, windows, etc.
will remain pliable and last longer if they are
treated with a suitable rubber care product
from time to time (for example silicone
spray). Caring for rubber seals will also prevent pre-
matur
e ageing and leaks. The doors will be
easier to open. If rubber seals are well looked
after, they will not freeze so quickly in winter.
Door lock cylinder The door lock cylinders can freeze up in win-
ter
.
T
o de-ice the lock cylinders you should only
use spray with lubricating and anti-corrosive
properties.
Cleaning chrome parts 1. Clean chrome parts with a damp cloth.
2. Polish chrome parts with a soft, dry cloth.
If
thi
s
does not provide satisfying results, use
a specialist chrome cleaning product.
Chrome cleaning products will remove stains
from the surface. CAUTION
To prevent scratching chrome surfaces:
● Never use an abrasive cleaning product on
chr ome.
● Do not
clean or polish chrome parts in a
sandy or du
sty environment.264