
Driving
Operating instructions The auxiliary heater exhaust system located
below the vehicle must be kept clear of snow,
mud and other objects. The exhaust gases
must not be obstructed in any way. The ex-
haust gases generated by the auxiliary heater
are removed via an exhaust pipe fitted under-
neath the vehicle.
On heating the vehicle interior, depending on
the outside temperature the warm air is first
directed at the windscreen and then to the
rest of the vehicle interior through the air
vents. If the air vents are turned towards the
windows, for example, the form of air distri-
bution may be affected.
Depending on the outside temperature, the
temperature at which the auxiliary heater
warms the vehicle interior may be somewhat
higher if the heating or air conditioner tem-
perature control is set to maximum before
switching the heating on.
Depending on the engine, vehicles with aux-
iliary heater may be fitted with a second bat-
tery in the luggage compartment that is re-
sponsible for powering the auxiliary heater.
Cases in which the auxiliary heater will not
switch on
● The auxiliary heater requires about as
much power as the dipped beam headlights.
If the battery charge is low, the auxiliary heat- er will switch off automatically or will not
even switch on. This avoids problems when
starting the engine.
●
The heater will switch on just once each
time. The timer will also have to be switched
back on every time it is required. Note
● Noise will be heard while the auxiliary
heater is running.
● When the air humidity is high and the out-
side temperature low, the heating system
may evaporate condensation from the auxili-
ary heater. In this case, steam may be re-
leased from underneath the vehicle. This is
completely normal and there is no need to
suspect a fault!
● If the auxiliary heater runs several times
over a prolonged period, the vehicle battery
may run flat. To re-charge the battery, drive
the vehicle for a long distance. As a general
rule, drive for as much time as the auxiliary
heating was working. Driving
Address Introduction The power steering is not hydraulic but elec-
tromechanical. The advantage of this steer-
ing system is that it disposes of hydraulic
tubes, hydraulic oil, the pump, filter and oth-
er components. The electromechanical sys-
tem saves fuel. While a hydraulic system re-
quires oil pressure to be maintained, electro-
mechanical steering only requires energy
when the steering wheel is turned.
With the power steering system, the assisted
steering function automatically adjusts ac-
cording to the vehicle speed, the steering tor-
que and the wheel turning angle. The power
steering only works when the engine is run-
ning.
WARNING
If the power steering is not working then the
steering wheel is much more difficult to turn
and the vehicle more difficult to control.
● The power steering only works when the
engine is running.
● Never allow the vehicle to move when the
engine is switched off.
● Never remove the key from the ignition if
the vehicle is in motion. The steering may » 131Technical specifications
Advice
Operation
Safety

Driving
Starter button Fig. 126
In the centre console: start-up push
button for the Keyless Access lock and start-
up system. The layout in right-hand drive ve-
hicles is symmetrical. Fig. 127
Emergency ignition in vehicles with
KESSY. The start-up button may only be used if there
is a valid key in the vehicle. Opening the driver's door
when exiting the
vehicle activates the electronic lock on the
s t
eering column if the ignition is disabled
››› page 131.
Swit
ching the ignition on/off
● Briefly push the start-up button ››› Fig. 126
without touching the brake or clutch ped-
al ››› .
Emergency starting function
If no valid key is detected inside the vehicle,
an emergency start-up will be required. The
relevant message will appear in the dash
panel display. This may happen when, for ex-
ample, the vehicle key battery is very low or
flat:
● Immediately after pushing the start-up but-
ton, keep the vehicle key next to the steering
column ››› Fig. 127 .
● The ignition c onnects
and the engine starts
automatically.
Emergency disconnection
If the engine does not stop after briefly press-
ing the start-up button, an emergency dis-
connect will be required:
● Press the starter button twice within 1 sec-
ond or press it once for more than 2 seconds
››› .
● The engine turns off automatically. Engine restart feature
If no valid key is detected inside the vehicle
after the engine stops, you will only have 5
seconds to restart it. A warning will display
on the dash panel screen.
After this interval, it will not be possible to
start the engine without a valid key inside
the vehicle.
WARNING
Any accidental movement of the vehicle could
result in serious injury.
● When pressing the start-up button, do not
pr e
ss the brake or clutch pedal, this way the
engine will start immediately. WARNING
If vehicle keys are used negligently or with-
out due care, this may cause accidents and
serious injury.
● Never leave any key inside the vehicle
when exiting. 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
In diesel vehicles with the Keyless Access
system, there may be a delay in the engine
starting if it requires preheating. 135
Technical specifications
Advice
Operation
Safety

Operation
Starting the engine Complete operations only in the sequence
given: Vehicles without
Keyless AccessVehicles with
Keyless Access
1.Press and hold the brake pedal until step 5 is per- formed.
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 selector lever in position P or N.
3.
Only in vehicles with
diesel engines: for pre-
heating, turn the key in the ignition lock to po-
sition ››› Fig. 125 1
. A
control lamp lights up
on the dash panel
.
4.
Turn the key in the igni- tion lock to position
››› Fig. 125 2
; do not
press the accelerator.
Press the starter button ››› Fig. 126; do not
press the accelerator. There needs to be a
valid key inside the ve- hicle for the engine to start.
5.Once the engine starts,release the key in the ignition lock.Once the engine starts,release the start-up button.
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 135.
7.Disconnect the electronic parking brake when you
are about to start driving ››› page 137. WARNING
Never leave the vehicle unattended if the en-
gine is running. 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
sudden increase in the engine speed.
● Never use start boosters. CAUTION
● An attempt to 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 acceleration and do not make the
engine work hard. ●
Do not push 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
driving immediately if the visibility is OK.
This helps the engine reach operating tem-
perature faster and reduces emissions. Note
● For example, 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 switched off temporarily when
the engine starts.
● When the engine is started cold, there may
be strong 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 may be given off below the vehicle
when the additional heater is connected. Stopping the engine
Complete operations only in the sequence
given:
136

Driver assistance systems
Conditions requiring the key to restart the
engine
The engine must 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
manually
● Press the button on the centre console
››› Fig. 136 .
● The b utt
on will light up when the Start-Stop
function is 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 work 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 very high outside temperatures could
damage the vehicle's battery. Note
● In some cases, you may have to restart the
vehicle using the key. Observe the corre-
sponding message on the instrument panel
display.
● If the steering wheel is turned more than
270°, Stop will not function; however, the an-
gle of steering wheel turn does not affect
starting the vehicle. Parking sensor system*
Introduction The parking sensor system assists the driver
when parking. When the vehicle approaches
an obstacle, forwards or backwards, an inter-
mittent audible warning will be heard, higher
or lower depending on the distance. The
shorter the distance, the shorter the intervals
between tones. If the vehicle is too close to
the obstacle, the audible warning becomes
constant.
If you continue to approach an obstacle when
the sound is continuous, this means the sys-
tem can no longer measure the distance.
The sensor system on the bumpers transmit
and receive ultrasound. Using the ultrasound
signal (transmission, reflection from the ob-
stacle and reception), this system continu-ously calculates the distance between the
bumper and the obstacle. WARNING
The parking sensor system and the optical
parking system cannot replace driver aware-
ness.
● The sensors have blind spots in which ob-
stacles and people are not registered.
● Always observe the area around the vehi-
cle, as the sensors do not always detect
small children, animals or objects.
● The surface of certain objects and some
clothing do not reflect the ultrasound signals
from the parking distance system. The sys-
tem cannot detect or incorrectly detects
these objects and people wearing these
types of clothes.
● External sound sources can affect the park-
ing distance aid signals. In this case, under
certain circumstances, people and objects
will not be detected. CAUTION
● The sensors may not always be able to de-
tect objects such as trailer draw bars, thin
rails, fences, posts, trees and open boots,
etc. This could result in damage to your car.
● Although the parking sensor system de-
tects and warns of the presence of an obsta-
cle, the obstacle could disappear from the an-
gle of measurement of the sensors if it is too
high or low and the system would no longer » 159
Technical specifications
Advice
Operation
Safety

Operation
If the system detects that a trailer has been
connected electrically, the electrical equip-
ment on the trailer will receive voltage
through this connection (pins 9 and 10). Pin
9 has a permanent live. This powers, for ex-
ample, the trailer's interior lighting. Electrical
devices such as a fridge in a caravan only re-
c eiv
e electrical power if the engine is running
(through pin 10).
The earth wires, pin 3 and pin 13, should not
be connected to each other to avoid over-
loading the electrical system.
If the trailer has a 7-contact connector , you
will need to use an adapter cable. In this case
the function corresponding to pin 10 will not
be available.
Trailer cable
Always secure the trailer cable to the towing
vehicle correctly. Leave a little bit of slack in
the cable for turning. However, ensure that
the cable does not rub off the ground while
driving.
Trailer rear lights
Check the trailer rear lights to ensure they
work correctly and remain legal. Ensure that
the trailer does not use more than the maxi-
mum power ›››
page 181. Tr
ailer connected to the anti-theft alarm:
● When a vehicle comes from the factory fit-
ted with an anti-theft alarm and tow hitch.
● When the trailer is connected to the vehicle
using the socket.
● When the vehicle and trailer electrical sys-
tems work correctly and are not damaged.
● When the vehicle is locked using the vehi-
cle key and the anti-theft alarm is turned on.
When the vehicle is locked, the alarm is trig-
gered when the electrical connection be-
tween the vehicle and the trailer is removed.
Always turn off the anti-theft alarm system
before connecting or disconnecting a trailer.
Otherwise, the tilt sensor may erroneously
activate the alarm.
Trailer with rear LED lights
For technical reasons, trailers fitted with rear
LED lights cannot be connected to the anti-
theft alarm system.
When the vehicle is locked, the alarm does
not trigger if the electrical connection with
the trailer is cut if it has rear light with light-
emitting diodes. WARNING
Erroneous or unsuitable connection of elec-
tric cables may supply energy to the trailer
causing an anomaly in the vehicle electronics that could result in an accident with serious
consequences.
●
All work on the electrical system must be
carried out only by a specialised workshop.
● Never connect the trailer's electric system
to the electrical connections of the rear lights
or any other power sources. CAUTION
Do not leave the trailer connected to the vehi-
cle when parked; places on its support wheel
or its supports. For example, when changing
the load or a puncture, the vehicle will be
pushed up or down. The force acting on the
tow hitch and the trailer could damage the
vehicle or the trailer. Note
● In the event of a fault in the vehicle or trail-
er electrical system or in the event of prob-
lems with the anti-theft alarm system, have
the system checked by a specialised work-
shop.
● If the trailer accessories use energy from
the power socket when the engine is stop-
ped, the battery will be discharged.
● For technical reasons, trailers fitted with
rear LED lights cannot be connected to the
anti-theft alarm system.
● If the vehicle battery is running low, the
electrical connection with the trailer is auto-
matically cut. 184

Checking and refilling levels
carried out by a specialised workshop if you
are uncertain. Negligent work can cause seri-
ous injury. WARNING
If the vehicle moves unexpectedly, this could
cause serious injury.
● Never work under the vehicle if it has not
been immobilized. If you must work under-
neath the vehicle with the wheels in contact
with the ground then it should be parked on
flat ground, the wheels should be prevented
from moving and the key should be removed
from the ignition.
● If you have to work underneath the vehicle,
you must use suitable stands additionally to
support the vehicle, there is a risk of acci-
dent!. The jack is not intended for this kind of
work and its failure could lead to severe inju-
ries. WARNING
The engine compartment is a dangerous area
capable of causing serious injury.
● For all type of work, always take the utmost
precautions, work carefully and note the gen-
eral safety standards in force. Never take per-
sonal risks.
● Never work on the engine or in the engine
compartment if you are not familiar with the
necessary operations. If you are not sure
about procedures then visit a specialised
workshop to carry out the necessary work. Working incorrectly can cause serious inju-
ries.
●
Never open the bonnet if you see steam or
coolant escaping from the engine compart-
ment. This may cause serious burns. Always
wait until you cannot see or hear the sound of
steam or coolant coming from the engine
compartment.
● Always allow the engine to cool down be-
fore opening the bonnet.
● Contact with hot elements of the engine
and the exhaust system can cause burns.
● Once the engine has cooled, follow the in-
structions below before opening the bonnet:
– Turn on the electronic parking brake and
place the gear selector lever in P or the
gearbox lever in neutral.
– Remove the key from the ignition.
– Keep children away from the engine com-
partment and never leave them unsuper-
vised.
● When the engine is warm or hot, the cool-
ing system is pressurised. Do not unscrew
the cap on the expansion tank when the en-
gine is hot. Otherwise, coolant may spray out
under pressure causing burns and serious in-
jury.
– Carefully and slowly unscrew the cap an-
ticlockwise, gently pressing down on it.
– Always protect your face, hands and arms
from hot coolant and steam using a large,
thick cloth. ●
When refilling liquids, avoid spilling them
on parts of the engine and the exhaust sys-
tem. Spilled liquids could cause a fire. WARNING
The high voltages of the electrical system can
give electric shocks as well as causing burns
and serious injury and possibly even death!
● Never cause short circuits in the electrical
system. The battery could explode.
● To minimise the risk of electric shock and
serious consequences while the engine is
running or starting the engine, note the fol-
lowing:
– Never touch the electrical wiring of the
ignition system.
– Never touch electric cables or the gas dis-
charge lamps. WARNING
In the engine compartment, there are rotat-
ing parts that could cause serious injury.
● Never place your hands on or near the radi-
ator fan. Touching the rotor blades could seri-
ously harm you. The ventilator works accord-
ing to the engine temperature and could start
suddenly even when the ignition is turned off
and the key is removed.
● If any work has to be performed when the
engine is started or with the engine running,
there is an additional, potentially fatal, safety » 215Technical specifications
Advice
Operation
Safety

Advice
● The vehicle must be unlocked before dis-
connecting the battery, otherwise the alarm
will be triggered.
● First disconnect the negative cable and
then the positive ››› .
Connecting the vehicle's battery
● Before reconnecting the battery, switch off
the engine and all electrical devices.
● First reconnect the positive cable and then
the negative ››› .
Different control lamps may light up after
connecting the battery and switching the ig-
nition on. They will be turned off after a short
trip at a speed of between 15-20 km/h
(10-12 mph). If the warning indicators remain
lit, please visit a specialised workshop to
have the vehicle checked.
If the battery has been disconnected for a
long time, it is possible that the next service
date is not displayed or calculated correctly
››› page 40 . Respect the maximum service in-
t er
vals permitted ››› Booklet Maintenance
Programme.
Vehic
les with Keyless Access (››› page 59): if,
after connecting the battery, the ignition can-
not be switched on, lock and unlock the vehi-
cle from outside. Then try to switch on the ig-
nition again. If the ignition does not work,
seek professional assistance. Automatic device disconnection
The intelligent vehicle electrical system auto-
matically implements a range of measures to
prevent the battery from discharging when
high demands are made on it:
● the idling speed is increased so that the al-
ternator provides more electricity.
● where necessary, the power of the most
powerful devices is reduced or even com-
pletely disconnected.
● On starting the engine, the power supply
from the 12-volt power sockets and the ciga-
rette lighter may be interrupted for a short
time.
The on-board management program cannot
always prevent the battery from running flat.
For example, if the ignition is left on for a
long period with the engine off or if the side
lights or parking lights are left on while the
vehicle is stationary.
Why does the battery run flat?
● When stationary for a long time without
starting the engine, particularly if the ignition
is switched on.
● Use of electrical devices with the engine
switched off.
● If the auxiliary heater is running
››› page 128
. WARNING
Incorrectly securing the battery or using the
wrong battery can cause short-circuits, fire
and serious injuries.
● Always use only maintenance free batteries
that do not run flat alone and whose proper-
ties, specifications and size correspond to
the standard battery. The specifications are
indicated on the battery case. WARNING
A highly explosive mixture of gases is re-
leased when the battery is under charge.
● The batteries should be charged in a well-
ventilated room only.
● Never charge a frozen or recently thawed
battery. A flat battery can also freeze at tem-
peratures close to 0 °C (+32 °F).
● Always replace a battery which has frozen.
● Battery cables not correctly connected may
cause a short circuit. Reconnect first the posi-
tive cable and then the negative cable. CAUTION
● Never disconnect the battery if the ignition
is switched on or if the engine is running.
This could damage the electrical system or
electronic components.
● Never plug accessories that supply current,
such as solar panels or a battery charger, to
the 12-volt power sockets or the cigarette 230

Emergencies
Starting
7. Start the engine of the vehicle with the boosting battery and let it run at idling
speed.
8. Start the engine of the vehicle with the flat battery and wait 2 or 3 minutes until the
engine is “running”.
Removing the jump leads
9. Before you remove the jump leads, switch off the dipped beam headlights (if they
are switched on).
10. Turn on the heater blower and heated rear
w indo
w in the vehicle with the flat battery.
This helps minimise voltage peaks which
are generated when the leads are discon-
nected.
11.When the engine is running, disconnect the leads in reverse order to the details
given above.
Connect the battery clamps so they have
good metal-to-metal contact with the battery
terminals.
If the engine fails to start, switch off the start-
er after about 10 seconds and try again after
about 1 minute. WARNING
● Please note the safety warnings referring to
working in the engine compartment
››› page 214.
● The b att
ery providing assistance must have
the same voltage as the flat battery (12V) and
approximately the same capacity (see imprint
on battery). Failure to comply could result in
an explosion.
● Never use jump leads when one of the bat-
teries is frozen. Danger of explosion! Even af-
ter the battery has thawed, battery acid could
leak and cause chemical burns. If a battery
freezes, it should be replaced.
● Keep sparks, flames and lighted cigarettes
away from batteries, danger of explosion.
Failure to comply could result in an explo-
sion.
● Observe the instructions provided by the
manufacturer of the jump leads.
● Do not connect the negative cable from the
other vehicle directly to the negative terminal
of the flat battery. The gas emitted from the
battery could be ignited by sparks. Danger of
explosion.
● Do not attach the negative cable from the
other vehicle to parts of the fuel system or to
the brake line.
● The non-insulated parts of the battery
clamps must not be allowed to touch. The
jump lead attached to the positive battery
terminal must not touch metal parts of the ve-
hicle, this can cause a short circuit. ●
Position the leads in such a way that they
cannot come into contact with any moving
parts in the engine compartment.
● Do not lean on the batteries. This could re-
sult in chemical burns. Note
The vehicles must not touch each other, oth-
erwise electricity could flow as soon as the
positive terminals are connected. Towing and tow starting
Introduction When towing, always respect legal require-
ments.
For technical reasons, it is not possible to
tow a vehicle if the battery is flat.
If the vehicle comes with the Keyless Access
system, towing is only allowed with the igni-
tion on!
The vehicle battery drains if the vehicle is
towed with the engine switched off and the
ignition connected. Depending on the battery
charge status, the drop in voltage may be so
large, even after just a few minutes, that no
electrical device in the vehicle may work e.g.
the hazard warning lights. In vehicles with
»
255
Technical specifications
Advice
Operation
Safety