
NoteClimatronic is set to the medium setting at the factory.
Air distribution controlRead and observe
and on page 119 first.
The recirculation mode prevents contaminated outside air getting into the In-
terior of the vehicle.
In recirculated air mode air is sucked out of the interior of the vehicle and then
fed back into the interior.
Switching on and off
›
Press the button.
When the recirculation mode is activated, the warning light below the button
lights up.
Heating and manual air conditioning system
If the air distribution control is set to position when the recirculation modes
is switched on, the recirculated-air mode is switched off. Recirculated air mode
can be switched on again from this position by repeatedly pressing the symbol
key .
When the is switched on and the temperature regulator is turned to the
left, the recirculated-air mode is switched on.
Climatronic
Climatronic may have an air quality sensor for the detection of the pollutant
concentration in the sucked-in air.
If a considerable increase in concentration of pollutants is recognised by the
air quality sensor, recirculated air mode will temporarily be switched on.
When the pollutant concentration decreases to the normal level, the recircula-
ted air mode is automatically switched off.
This automatic on/off switching of the recirculated-air mode can be activated
or deactivated in the Infotainment » Owner´s Manual Infotainment , chap-
ter Setting the heating and the cooling system .
If the button is pressed when the recirculation modes is switched on, the
recirculated-air mode is switched off.
Depending on the moisture conditions in the vehicle interior the air recircula- tion may also shut-down automatically.
WARNINGThe recirculation system cannot be switched on for a longer period of time,
because there is no supply of fresh air from the outside. “Stale air” may re-
sult in fatigue in the driver and occupants, reduce attention levels and also
cause the windows to mist up. The risk of having an accident increases.
Switch off recirculated air mode as soon as the windows start to mist up.
CAUTION
We recommend not smoking in the vehicle when the recirculating air operation
is switched on. The smoke sucked from inside the vehicle is deposited on the
evaporator of the air conditioner. This produces a permanent odour when the
air conditioning system is operating which can only be eliminated through con-
siderable effort and expense (replacement of compressor).
Note
The automatic activation/deactivation of the air recirculation with Climatronic
only works if the outside temperature is higher than approx. 2 °C.
Air outlet vents
Fig. 157
Air vents at the front
122Using the system

Fig. 158
Air vents at the rear
Read and observe
and on page 119 first.
The direction of airflow can be adjusted using the air outlet vents 3, 4
» Fig. 157 and 6 » Fig. 158 - the outlets can be opened and closed individually.
Changing the direction of air flow
›
To change the height of the air flow, swivel the horizontal fins with the mov-
able adjuster
A
» Fig. 157 or » Fig. 158 upward or downward.
›
To change the lateral direction of the air flow, turn the vertical fins with the
movable adjuster
A
» Fig. 157 or » Fig. 158 to the left or right.
Opening
›
Turn regulator
B
» Fig. 157 or » Fig. 158 upwards.
Closing
›
Turn regulator
B
» Fig. 157 or » Fig. 158 downwards.
Depending on the setting of the air distribution on the front panel of the heat-
er, the manual air conditioning or the Climatronic, the following air vents are
active.
Set the direction of the air outletActive air outlet nozzles » Fig. 157 and
» Fig. 158 1, 2 , 41, 2 , 4 , 5 , 7 3, 4 , 6Set the direction of the air
outletActive air outlet nozzles » Fig. 157 and
» Fig. 1584 , 5 , 73 , 4 , 5 , 6 , 7
CAUTION
To ensure that the heating, the manual air conditioning and the Climatronic
systems work properly, do not block up the air outlet vents with any objects.
Auxiliary heating (auxiliary heating and ventilation)
Introduction
This chapter contains information on the following subjects:
Switching on/off
124
Radio remote control
125
Functional requirements of the auxiliary heating (auxiliary heating and ventila-
tion)
The charge state of the vehicle battery is sufficient.
The fuel supply is adequate (the warning light is not illuminated in the
instrument cluster).
Aux. heating
The auxiliary heating can be used when both when stationary, when the en-
gine is switched off, to preheat the vehicle and also while driving (e.g. during
the heating phase of the engine).
The auxiliary heating warms up the coolant by combusting fuel from the vehi-
cle tank. This heats the air flowing into the passenger compartment (if the
blower is turned on).
The auxiliary heating also warms up the engine.
Auxiliary ventilation
The auxiliary ventilation enables fresh air to flow into the vehicle interior by
switching off the engine, whereby the interior temperature is effectively de-
creased (e.g. with the vehicle parked in the sun).
123Heating and ventilation

WARNING■The auxiliary heating (auxiliary heating and ventilation) (following as aux.
heating) must never be operated in closed rooms (e.g. garages) – risk of
poisoning!■
The auxiliary heating must not be allowed to run during refuelling – risk
of fire.
■
The exhaust pipe of the auxiliary heating is located on the underside of
the vehicle. If you want to use the heater, do not switch off the car in pla-
ces where the exhaust fumes can come into contact with flammable mate-
rials such as dry grass, undergrowth, leaves, spilled fuel etc. -. risk of fire.
CAUTION
■ The exhaust pipe of the auxiliary heating, which is located on the underside
of the vehicle, must not be clogged and the exhaust flow must not be blocked.■
If the auxiliary heating is running, the vehicle battery discharges.
■
The air inlet in front of the windscreen must be free (e.g. of ice, snow or
leaves) to ensure that the auxiliary heating operates properly.
Note
■ The auxiliary heating only switches the blower on, if it has achieved a coolant
temperature of approx. 50 °C.■
At low outside temperatures, this can result in a formation of water vapour in
the area of the engine compartment. This is quite normal and is not an operat-
ing problem.
■
So that warm air can flow into the vehicle interior after switching on the aux.
heating, you must maintain the comfort temperature normally selected by you,
leave the fan switched on and leave the air outlet vents in open. It is recom-
mended to put the air flow in the position
or
.
Switching on/offFig. 159
Button for direct power on / off of the auxiliary heating (heating
and ventilation) on the front panel of the Climatronic / manual air condi-
tioning
Read and observe
and on page 124 first.
The auxiliary heating (heating and ventilation) (hereinafter referred to as a
heater) can be switched on and off as follows.
Switching on
▶ Manually with the symbol key on the front panel of the Climatronic or the
manual air conditioning » Fig. 159.
▶ Manually with the symbol key on the radio remote control.
▶ Via an automatically programmed and activated pre-set time in the Infotain-
ment.
▶ Automatically according to the ambient conditions »
.
Switching off
▶ Manually with the symbol key on the front panel of the Climatronic or the
manual air conditioning » Fig. 159.
▶ Manually with the symbol key on the radio remote control.
▶ Via an automatically programmed and activated pre-set time in the Infotain-
ment.
▶ Automatically when the warning light in the instrument cluster illumi-
nates.
▶ Automatically according to the ambient conditions »
.
After switching the system off, the auxiliary heating will continue running a lit-
tle while longer in order to burn the remaining fuel in the auxiliary heating.
After switching off, coolant pump still runs for a short period.
124Using the system

Programming the auxiliary heating in the Infotainment
For vehicles with Climatronic: on the front panel of the Climatronic button
→
Press
For vehicles with manual air conditioning: button in the Infotainment fea-
ture
→
Press
When automatic switching on is activated, the indicator light in the symbol key
lights up » Fig. 159 for about 10 seconds after the ignition is turned off.
CAUTION
The automatic switching on and off the heating for rapid heating of the vehicle
interior can be disabled in the Infotainment » Owner´s Manual Infotainment ,
chapter Setting the heating and the cooling system .
Radio remote control
Fig. 160
Radio remote control
Read and observe and on page 124 first.
Using the radio remote control, the auxiliary heating and ventilation (herein-
after referred to as auxiliary heater) can be switched on or off.
Function and description of the radio remote control » Fig. 160
Warning light
Aerial
Switch on the auxiliary heating
Switch off the auxiliary heating
To switch the auxiliary heater on or off, hold the remote control vertically, with
the aerial
A
» Fig. 160 pointing upwards. The antenna must not be covered
with the fingers or the palm of the hand during this process.
ABThe auxiliary heating can only be switched on/off safely using the radio re-
mote control, if the distance between the radio remote control and the vehicle
is at least 2 m.
After pressing the button, the warning light in the remote control gives the
user different kinds of feedback.Display warning light A » Fig. 160MeaningLights up green for around 2 seconds.The auxiliary heating has been
switched on.Lights up red for around 2 seconds.The auxiliary heating has been
switched off.Slowly flashes green for around 2 sec-
onds.The ignition signal was not received.Quickly flashes green for around 2
seconds.The auxiliary heating is blocked, e. g
because the tank is nearly empty or
there is a fault in the auxiliary heat-
ing.Flashes red for around 2 seconds.The switch off signal was not re-
ceived.Lights up orange for around 2 sec-
onds, then green or red.The battery is weak, however the
switching on or off signal was re-
ceived.Lights up orange for around 2 sec-
onds, then flashes green or red.The battery is weak, however the
switching on or off signal was not re-
ceived.Flashes orange for around 5 seconds.The battery is discharged, however
the switching on or off signal was not
received.
Replace the battery » page 235.
CAUTION
■
The radio remote control comprises electronic components and must there-
fore be protected against water, severe impacts and direct sunlight.■
When the battery is fully charged, the range of the remote control is a few
hundred metres. Obstacles between the radio remote control and the vehicle,
bad weather conditions and a weaker battery can clearly reduce the range.
125Heating and ventilation

OperationFig. 164
Display
Vehicles with manual transmission
The engine is automatically switched off as soon as the vehicle comes to a
halt, the shift lever is moved into neutral and the clutch pedal is released.
The engine is automatically started as soon as the clutch pedal is depressed.
Vehicles with automatic transmission
The engine is automatically switched off as soon as the vehicle comes to a
halt and the brake pedal is operated.
The motor is automatically started as soon as the accelerator pedal is de-
pressed or, if the Auto Hold function is deactivated, when the brake pedal is
released.
Requirements for the system to function correctly
The following conditions must be met for the system to function correctly.
The driver's door is closed.
The driver has fastened the seat belt.
The bonnet is closed.
The driving speed was higher than 4 km.h after the last stop.
System status
The system status is shown in the display when the vehicle comes to a halt
» Fig. 164 .
The engine is switched off automatically; when moving off, the ignition
process will be initiated automatically.
The engine is not switched off automatically.
Reasons for the engine running
It may be essential for the engine to keep running when the vehicle comes to
a halt, for the following reasons. ▶ The engine temperature for the proper function of the system has not yet
been reached.
▶ The charge state of the vehicle battery is too low.
▶ The current consumption is too high.
▶ High air-conditioning or heating capacity (high fan speed, big difference be-
tween the desired and actual interior temperature).
When the engine is shut-down automatically and the system detects that the
engine is required such as when the brake pedal is pressed repeatedly then
the system automatically starts the engine.
Infotainment display
Information about the current status of the system can be displayed in the In-
fotainment display » Owner´s Manual Infotainment , chapter CAR - Vehicle set-
tings (CAR button) .
Note
■
If the vehicle remains outdoors for a long time in minus temperatures or in
direct sunlight, it can take several hours until the internal temperature of the
vehicle battery reaches a suitable temperature for proper operation of the
START STOP system.■
If the driver's seat belt is removed for more than approx. 30 seconds or the
driver's door is opened during stop mode, the engine will have to be started
manually.
■
No automatic engine shut-down takes place when a vehicle with automatic
transmission is moving at low speed (e.g. during a traffic jam) and remains sta-
tionary after pressing the brake pedal lightly. Automatic engine shut-down
takes place if you press the brake pedal down with more force.
■
For vehicles with automatic transmission there is no automatic engine shut-
down when the system detects a manoeuvring action due to a large steering
angle.
131Starting-off and Driving

DriveGreen function140Radiator blind140
The fuel consumption, degree of pollution and vehicle wear depend on driving
style, road condition, weather conditions and the like.
Running-in
Driving in the engine
The engine has to be run in during the first 1 500 kilometres. During this peri-
od, the driving style decides on the quality of the driving-in process.
During the first 1 000 km we recommend not driving faster than 3/4 of the
maximum permissible engine speed, not to drive at full throttle and to dis-
pense with the trailer.
In the area of 1,000 to 1,500 kilometres the engine load can be increased up
to the maximum permitted engine speed.
New tyres
New tyres must firstly be “run in”, as they do not offer optimal grip at first.
Therefore, drive especially carefully for the first 500 km or so.
New brake pads
New brake pads have to first “grind in” because these do not initially have the
best possible braking effect.
Therefore, drive especially carefully for the first 200 km or so.
Tips for economical driving
To achieve the lowest possible fuel consumption, the following instructions
must be observed.
Looking ahead when driving
Avoid unnecessary acceleration and braking.
Switch in an energy saving and timely manner Observe the recommended gear » page 42.
Avoid full throttle and high speeds
Fuel consumption can be reduced by half if only three-quarters of the possible
top speed of your vehicle is used.
Reducing idling
If the vehicle is fitted with the START - STOP system there is an automatic re-
duction of the idling. If the engine is stopped on vehicles without START-STOP
system, such as when waiting in a traffic jam, the fuel economy is already
greater after 30 - 40 s than the fuel quantity which is required for engine re-
start.
Avoid short distances
When driving a short distance of less than about 4 km, the engine cannot
reach its operating temperature. As long as the engine has not reached oper-
ating temperature, the fuel consumption is significantly higher than with the
engine hot.
Pay attention to the correct tyre inflation pressure being maintained
Further information » page 217.
Avoid unnecessary ballast
Per 100 kg of weight, consumption increases by about 0.3 l/100 km. At a speed
of 100 - 120 km/h, a vehicle fitted with a roof rack cross member without a load
will use about 10 % more fuel than normal due to the increased aerodynamic
drag.
Saving electricity
Only turn on electrical consumers (e.g. seat, window and mirror heating and
the like) for as long as necessary.
In Infotainment, the display is shown of up to three consumers which are cur-
rently showing the highest degree of fuel consumption » Owner´s Manual In-
fotainment , chapter CAR - Vehicle settings .
Use the cooling system economically
The air conditioning system compressor uses power from the engine when in
cooling mode, which will affect the fuel consumption.
It recommended to open the windows or the doors of a vehicle for which the
interior has been strongly heated through the effect of direct sunlight in order
to allow the heated air to escape.
The cooling system should not be on if the windows are open.139Starting-off and Driving

CAUTIONInformation for cleaning windows■Do not clean the inside of the windows with sharp-edged objects or corro-
sive and acidic cleaning agents – there is a risk of damaging the heating ele-
ments or window aerial.■
When drying the windows after washing the vehicle, do not use window
leathers that have been used to polish the bodywork. Residues of preserva-
tives in the window leather can make the window dirty and reduce visibility.
Headlight glasses
Read and observe
and on page 195 first.
Clean plastic front headlight lenses using clean, warm water and soap.
CAUTION
■The headlights are never to be wiped dry - there is a risk of damaging the
protective lacquer and the headlight glass subsequently developing cracks.■
Do not use sharp objects to clean the glasses - there is a risk of damaging
the protective lacquer and the headlight glasses subsequently developing
cracks.
■
Do not use any aggressive cleaning or chemical solvent products to clean the
headlights – risk of damaging the headlight lenses.
Camera lens
Read and observe
and on page 195 first.
Moisten the lens of the rear view camera first with clean water and then dry
with a dry cloth.
Remove the snow from the lens with a brush and the ice from the lens with
de-icing agents specifically developed for these purposes.
CAUTION
■ Remove snow or ice on the lens with warm or hot water - there is a risk of
damaging the lens.■
Never use cleaners containing abrasive effect to clean the lens.
■
Never use pressurized water or steam jet to clean the lens.
Door closing cylinder
Read and observe
and on page 195 first.
Specific products must be used for de-icing door lock cylinders.
CAUTION
Make sure that as little water as possible gets into the locking cylinder when
washing the vehicle - there is a risk of freezing the lock cylinder!
Cavity protection
Read and observe
and on page 195 first.
All the cavities of your vehicle which are at risk from corrosion are protected
for life by a layer of protective wax applied in the factory.
This wax protection does not need to be inspected or re-applied.
If any small amount of wax flow out of the cavities at high temperatures, these
must be removed with a plastic scraper and the stains cleaned using a petrole-
um cleaner.
WARNINGSafety regulations should be observed when using petroleum cleaner to re-
move wax – risk of fire!
Jack
Read and observe
and on page 195 first.
The jack is maintenance-free.
If necessary, the moving parts of the jack should be lubricated with a suitable
lubricant.
Wheels
Read and observe
and on page 195 first.
Wheel rims
Also thoroughly wash the wheel rims when washing the vehicle on a regular
basis.
197Care and maintenance

CAUTION■For Alcantara ®
seat covers, do not use any solvents, floor wax, shoe cream,
stain remover, leather cleaners or similar agents.■
Avoid leaving the vehicle in bright sunlight for long periods of time in order
to stop the artificial leather, materials or Alcantara ®
from bleaching. During ex-
tended periods of standing outdoors, protect artificial leather, fabrics or Alcan-
tara ®
by covering.
■
Some clothing materials, e.g. dark denim, do not have sufficient colour fast-
ness. This can cause damage or clearly visible discolouration to seat covers,
even when used correctly. This applies particularly to light-coloured seat cov-
ers. This does not relate to a fault in the seat cover, but rather to poor colour
fastness of the clothing textiles.
Seat covers
Read and observe
and on page 198 first.
Electrically heated seats
Use a specific cleaning agent such as dry foam or similar to clean the covers.
»
.
Seats without seat heating
Thoroughly vacuum the seat covers with a vacuum cleaner before cleaning.
Clean the seat covers with a damp cloth or cleaning products specially de-
signed for this purpose.
Indented points arising on the fabrics by everyday use, can be removed by
brushing against the direction of hair with a damp brush.
Always clean all parts of the covers, so that there are no visible edges. Then
allow the seat to dry completely.
CAUTION
■ Do not clean the covers of electrically heated seats either with water or with
other liquids - there is a risk of damaging the seat heating system.■
Regularly remove dust from the seat covers using a vacuum cleaner.
■
Electrically heated seats must not be dried after cleaning by switching on the
heater.
■
Do not sit on wet seats - risk of seat deformation.
■
Always clean the seats from “seam to seam”.
Safety belts
Read and observe
and on page 198 first.
Wash dirty seat belts with mild soapy water.
Remove coarse dirt with a soft brush.
WARNING■ The seat belts must not be removed for cleaning.■Never clean the seat belts chemically as chemical cleaning products could
destroy the fabric.■
The seat belts must not be allowed to come into contact with corrosive
liquids (e.g. acids).
■
The seat belts must be fully dried before being rolled up.
200General Maintenance