Air conditioning
Economic use of the air-conditioning
sy s
t
em When the air conditioning is switched on, the
compr
e
ssor consumes engine power and has
influence on fuel consumption.
If the vehicle interior has overheated due to
excessive solar radiation, it is best to open
the windows or doors to allow the hot air to
escape.
While in motion, the air conditioning should
not be switched on if the windows are open. If the interior temperature can be reached
without
sw
itching on the air conditioning, the
fresh air mode should be used. For the sake of the environment
Saving fuel reduces emissions. Faults
If the air conditioning does not work at out-
side t
emper
atures above +5°C (+41°F) then the system is faulty. This may be due to one
of the f
o
llowing reasons:
● One of the fuses has blown. Check the fuse
and repl
ace if necessary ››› page 80.
● The air conditioning compressor has
switc
hed off temporarily because of in-
creased engine coolant temperature
››› page 97.
If you cannot repair the fault yourself or
where cooling power continues to drop,
switch off the system. Contact a specialised
service.
Air vents Fig. 168
Air vents Opening air vents 3 and 4
– Turn the vertical circular control upwards. »
143Technical data
Advice
Operation
Emergencies
Safety
Air conditioning
Connecting the recirculation
In an y
po
sition of rotary switch C except
th a
w:
● Pr
ess button 1
› ››
Fig. 169
, the sw
itch's
lamp will light up, indicating that air recircu-
lation inside the vehicle has been activated.
Disconnecting the recirculation
In any position of rotary switch C except
th a
w:
● Pr
ess button 1 again and the button's
l amp w
i
ll go off, indicating that air recircula-
tion from the outside has been activated.
In the thaw position of rotary switch C , the
entr y
of
air into the vehicle interior is always
from the outside. WARNING
Read and observe the safety warnings ›››
in
Genera l
notes on page 142. Air conditioning (manual)*
Gener a
l
notesThe air cooling system only works if
A/C but-
t on 2
› ›
›
Fig. 170 ›››
page 145 is pressed
and under following conditions:
● The engine is running, ●
The outside temper
ature is above +2°C
(+36°F),
● The blower control is in position 1–4.
When the coolin
g system is on and under cer-
tain conditions, air can be blown from the
vents at a temperature of approximately +5°C
(+41°F). In the event of prolonged, irregular
distribution of the air flow from the outlets
and significant differences in temperature,
e.g. on leaving the vehicle, sensitive people
may catch cold. Note
A visit to the specialised service once a year
is r
ecommended to clean the air conditioning
system. Manual operation
Fig. 170
Air conditioning: controls. Read the additional information carefully
› ›
›
page 37
Temperature selection – Turn rotary control A
› ››
Fig. 170
c
lockwise
to increase the temperature.
– Turn rotary control A anti-clockwise to re-
duc e the t
emper
ature.
Blower selection
– Turn rotary control B
› ››
Fig. 170
t
o posi-
tion 1 to 4 to switch the blower on.
– Turn rotary control B to position 0 to
sw it
c
h the blower off.
– Press button
1
› ›
› p
age 146, Air recir-
culation to close the fresh air vent.
Air distribution selection – Turn rotary control C
› ›
› Fig. 170
to select
the air vents ››› page 143 you wish to acti-
vate.
Switching cooling on and off
– Press the button A/C
2
› ›
› Fig. 170
and
the lamp in the button will illuminate.
– Press the A/C
2 button again and the
light in the b
utt
on will switch off. »
145
Technical data
Advice
Operation
Emergencies
Safety
Operation
Coldest setting – On turning control A to the coldest setting
(b lue indic
at
or), buttons 1
and
2 A/C
, light up
– The recirculation function is activated auto-
matic
al
ly in order to cool faster. Note
● If the air di s
tribution is directed towards
the windows, all, of the heating power is
used to defrost the windscreen. No warm air
is directed to the footwell area. This could
limit heating comfort.
● The AC button lamp will illuminate after
the sys t
em has been switched on, even if not
all of the conditions for cooling system oper-
ations are met. Cooling is indicated as availa- ble once all of the conditions are met
›› ›
page 145, General notes . Air recirculation
Air recirculation prevents unpleasant smells,
e.g. when p
a
ssing through a tunnel or in
queuing traffic, from entering the interior.
If the rotary switch C
››› Fig. 170 i
s in the
thaw position, the recirculation flap will al-
ways be open (button light off).
If the rotary switch C is switched from any
po s
ition t
o the thaw position, recirculation
will be automatically deactivated.
Connecting the recirculation
In any position of rotary switch C except
th a
w: ●
Pr
es
s button 1
› ››
Fig. 170
, the sw itch's
lamp will light up, indicating that air recircu-
lation inside the vehicle has been activated.
Disconnecting the recirculation
In any position of rotary switch C except
th a
w:
● Pr
ess button 1 again and the button's
l amp w
i
ll go off, indicating that air recircula-
tion from the outside has been activated.
In the thaw position of rotary switch C , the
entr y
of
air into the vehicle interior is always
from the outside. WARNING
Read and observe the safety warnings ›››
in
Genera l
notes on page 142. 146
Air conditioning
Climatronic* (automatic air conditioning) Gener a
l
notes Fig. 171
Climatronic: controls. Read the additional information carefully
› ›
›
page 36
Climatronic automatically maintains a com-
fortable temperature. To do so, it automati-
cally regulates the supplied air temperature
and the blower and air distribution levels.
The system also allows for the effect of sun-
light, so there is no need for manual adjust-
ment. It also has a humidity sensor that
helps to automatically demist the wind-
screen.
Automatic operations ››› page 148 guaran-
tee maximum comfort any time of year. Climatronic description
Coolin
g only works if the following conditions
are met:
● The engine is running
● the outside temperature is above +2°C
(+36°F);
● A/C
18
› ››
Fig. 171
sw
itched on.
Starting the Climatronic
The corresponding function will be switched
on when a button is pressed, turning on the
air conditioning if it was switched off, with
the exception of button 17
›
› ›
Fig. 171
(recir-
culation). Switching off the Climatronic
●
Turn control 10 to the left until the seg-
ments of
c
olumn 9
› ››
Fig. 171
sw itch off.
● After 1 second has elapsed, turn the control
again t
o switch off the display.
In order to ensure engines subject to heavy
loads are cooled, the air conditioning com-
pressor is switched off in the event of high
coolant temperatures.
Recommended setting for all seasons of the
year
● Set the required temperature. We recom-
mend +22°C (72°F). »
147
Technical data
Advice
Operation
Emergencies
Safety
Driving
rise in temperature causes the soot on the fil-
t er t
o b
urn. On completion of the cleaning
the warning lamp will switch off.
If the lamp does not turn off, or the three
lamps turn on (particulate filter , fault in
the emission control system and glow
plugs ), drive the vehicle to a specialised
workshop and have the fault repaired at the
earliest opportunity. WARNING
● Alw a
ys drive according to the road weather
conditions, the terrain and traffic.
● The particulate filter attains very high tem-
peratur
es. Therefore, do not park the vehicle
in places where the exhaust pipe could come
into contact with dry grass or with highly-
flammable materials. Risk of fire! CAUTION
While the warning lamp is lit
up, the fuel
consumption is high, and in certain condi-
tions, the engine power is reduced. Note
● In order f or the p
articulate filter to burn off
soot in a correct manner, avoid carrying out
frequent short journeys.
● Using diesel fuel with a high sulphur count
can con
siderably reduce the useful life of the
particulate filter. The specialised service pro- vides information about the countries where
fuel
w
ith a high sulphur content is used. Engine management*
This warning lamp monitors the engine man-
agement
sy
stem for petrol engines.
The warning lamp (Electronic Power Con-
trol) lights up when the ignition is switched
on while system operation is being verified. It
should go out once the engine is started.
If there is a fault in the electronic engine
management system while you are driving,
this warning lamp will light up. Take the vehi-
cle to a specialised workshop as soon as
possible and have the engine checked.
Emission control system* Control lamp
fla
she
s:
When there is misfiring that can damage the
catalytic converter. Reduce speed and drive
carefully to the nearest specialised workshop
to have the engine checked.
The control lamp lights up:
If a fault has developed during driving which
has reduced the quality of the exhaust gas
(e.g. lambda probe fault). Reduce speed and drive carefully to the nearest specialised
workshop t
o have the engine checked.
Engine pre-heating/fault system* The warning lamp lights up to show that the
glow p
lug
s are preheating the diesel engine.
The control lamp lights up
If the control lamp lights up when the en-
gine is started it means that the glow plugs
are preheating. The engine can be started
straight away when the lamp switches off.
Control lamp flashes
If a fault develops in the engine management
system while you are driving, the glow plug
system lamp will flash . Take the vehicle to
a specialised workshop as soon as possible
and have the engine checked.
165
Technical data
Advice
Operation
Emergencies
Safety
Operation
Driving tips Driv in
g thr
ough flooded roadsFig. 180
Driving through water. To prevent the vehicle from being damaged
when driv
in
g thr
ough water (i.e. flooded
roads), please observe the following:
● Determine the depth of the water before
entering.
Water can reach a maximum height
of below the door sill ››› Fig. 180.
● Drive at a maximum pace of walking speed.
Driving at
a higher speed can cause a wave
in front of the vehicle, which can cause water
to enter the engine air intake system or other
parts of the vehicle.
● Never stop in the water, never reverse and
never st
op the engine.
● Before driving through water deactivate the
Start
-Stop system ››› page 181. WARNING
● Drivin g thr
ough water, dirt and mud can re-
duce braking capability and prolong the brak-
ing distance – Risk of accident!
● Do not carry out any sudden or strong brak-
ing manoeu
vres after driving through water.
● Clean and dry the brakes as soon as possi-
ble af
ter driving through water by breaking
intermittently. Carry out braking in order to
dry the brakes and clean the brake discs only
if traffic so permits. Do not put other drivers
at risk. CAUTION
● In the event of
driving through water, parts
of the vehicle can be seriously damaged,
such as the engine, gearbox, catalytic con-
verter, suspension or the electrical system.
● Oncoming vehicles that drive through wa-
ter can c
ause waves that exceed your vehi-
cle's permitted level for driving through wa-
ter.
● There may be pot-holes mud or rocks under
the water th
at can hinder or prevent driving
through water.
● Do not drive through salt water. The salt
can cau
se rust. All components that are ex-
posed to salt water must be rinsed immedi-
ately with fresh water. Note
After driving through water we recommend
that
you contact a specialised service for an
inspection. Preventing damage to the vehicle
In order to prevent damage to the vehicle,
tak
e s
pecial care:
● on roads that are in poor condition,
● when mounting kerbs,
● when approaching very steep ramps, etc.,
● with the parts of the vehicle situated on the
low er p
art of the vehicle, i.e. the spoiler, the
exhaust pipe.
This applies especially to vehicles with a very
low suspension (sport) and when the vehicle
is fully loaded. 166
Operation
Turning off the cruise control system –
Move knob 1
››› Fig. 187 ››› page 175 to
OFF.
Monitoring system Front As-
sis
t*
Introduction The Front Assist Monitoring system helps to
pr
ev
ent
rear collisions.
The Front Assist can warn the driver of colli-
sion hazards, prepare the vehicle for emer-
gency braking in case of danger, assist the
driver on braking and cause automatic brak-
ing.
The Front Assist is not a replacement for
driver awareness.
Distance warning
If the system detects that safety is endan-
gered by the proximity of the vehicle in front,
it may warn the driver by means of a message
on the instrument panel when driving at a
speed of between approximately 60 km/h
(37 mph) and 210 km/h (130 mph)
››› Fig. 188.
The warning moment varies depending on
the traffic situation and driver behaviour. Advance warning
If the sys
tem detects a possible collision with
the vehicle in front, it may warn the driver by
means of an audible warning and an indica-
tion on the instrument panel when driving at
a speed of between approximately 30 km/h
(18 mph) and 210 km/h (130 mph)
››› Fig. 188.
The warning moment varies depending on
the traffic situation and driver behaviour. At
the same time, the vehicle will prepare for a
possible emergency braking ››› .
C ritic
a
l warning
If the driver fails to react to the advance
warning, the system may actively intervene in
the brakes when driving at a speed of be-
tween approximately 30 km/h (18 mph) and
210 km/h (130 mph), generating a brief jolt
to warn of the imminent collision.
Automatic braking
If the driver also fails to react to the advance
warning, the system may brake the vehicle
automatically, by progressively increasing
braking effect driving at a speed of between
approximately 5 km/h (3 mph) and 210 km/h
(130 mph). By reducing speed in case of a
possible collision, the system may contribute
to reducing the consequences of an accident. Front assist
If the Front
Assist notices that the driver is
not braking sufficiently in case of a collision
hazard, the system can increase braking ef-
fect and thus avert the collision when driving
at a speed of between approximately 5 km/h
(3 mph) and 210 km/h (130 mph). Front as-
sist only acts while the brake pedal is press-
ed down hard. WARNING
The intelligent technology in the Front Assist
cannot c
hange the laws of physics. The driver
is always responsible for braking in time. If
the Front Assist issues a warning, then, de-
pending on the traffic circumstances, you
must brake immediately or dodge the obsta-
cle.
● Adapt your speed and safe distance to the
vehicl
e in front of you at all times to suit visi-
bility, weather, road and traffic conditions.
● The Front Assist alone cannot avoid acci-
dents and seriou
s injuries.
● In complex driving situations, the Front As-
sis
t may issue unnecessary warnings and in-
tervene unnecessarily in braking, such as in
traffic islands.
● If the operation of the Front Assist is im-
paired, f
or example, by dirt or because the ra-
dar sensor has lost its settings, the system
may issue unnecessary warnings and inter-
vene inopportunely in the braking. 176
Operation
● Mi s
aligned
vehicles.
● Vehicles crossing the other's path.
● Vehicles approaching in the opposite direc-
tion.
● Special loads and accessories of other ve-
hicle
s that jut out over the sides, backwards
or over the top.
City Emergency braking function Fig. 192
On the instrument panel display: ad-
v anc e w
arning message The City Emergency braking function is part
of
the Fr
ont
Assist monitoring and is active
whenever the system is switched on.
Depending on the equipment, the pre-warn-
ing function can be switched on or off in the Easy Connect system with the button
and
the f u
nction b
uttons and
Driv
er As
s ist ›››
p
age 21.
The C ity
Emergency braking function picks
up, at speeds between 5 km/h (3 mph) and
30 km/h (19 mph) approximately, the traffic
situation in front of the vehicle up to a dis-
tance of about 10 m.
If the system detects a possible collision with
a vehicle in front of it, the vehicle prepares
for a possible emergency braking ››› .
If the driv
er f
ails to react to a possible colli-
sion, the system may brake the vehicle auto-
matically, by progressively increasing braking
effect driving to reduce speed in the event of
a collision. The system can thus help to re-
duce the consequences of an accident.
Status display
Automatic deceleration by means of the City
Emergency braking function is displayed on
the instrument panel by means of the ad-
vance warning ››› Fig. 192 1)
. WARNING
The smart technology included in the City
Emerg ency
braking function cannot defy the laws of physics. The driver is always respon-
sib
l
e for braking in time.
● Adapt your speed and safe distance to the
vehicl
e in front of you at all times to suit visi-
bility, weather, road and traffic conditions.
● The City Emergency braking function alone
cannot pr
event accidents or serious injury.
● In complex driving situations, the City
Emergency
braking function may issue unnec-
essary warnings and intervene inopportunely
in braking, such as in work areas or if there
are metal rails.
● If the operation of the City Emergency brak-
ing fu
nction is impaired, for example, by dirt
or because the radar sensor has lost its set-
tings, the system may issue unnecessary
warnings and intervene inopportunely in the
braking.
● During driving, the City Emergency braking
function doe
s not react to people or animals
or vehicles crossing your path or which ap-
proach you head-on in the same lane. Note
● When the City Emer
gency braking function
causes a braking, the brake pedal is “hard-
er”.
● Automatic interventions on the brakes by
the City Emer
gency braking function may be1)
The symbol on the instrument panels with colour
dis p
lay is in colour.
180