Air conditioning
Auxiliary heater (additional
he at
er)*
Intr
oduction The auxiliary heater runs on fuel from the ve-
hicl
e's
tank and can be used while you are
driving and when the vehicle is stationary.
The auxiliary heater can be switched on using
the fast heating button of the air condition-
ing controls, with the remote control or by
previously programming a departure time in
the auxiliary heater menu of the infotainment
system.
In winter, with the auxiliary heater switched
on, you can defog the windscreen and leave
it free of ice and snow (if it is a thin layer) be-
fore you start driving.
If the outside temperature is very high, the
vehicle interior can be ventilated with the en-
gine off using the auxiliary heater. WARNING
Swallowing a battery with a 20 mm diameter
or any other b
utton battery can cause serious
and even fatal injuries within a very short
time.
● Always keep the remote control, keyrings
with batt
eries, the spare batteries, button
batteries and all other batteries over 20 mm
out of reach of children. ●
If y
ou suspect that someone may have
swallowed a battery, seek immediate medical
attention. WARNING
The auxiliary heater exhaust fumes contain
c arbon mono x
ide, an odourless and colour-
less toxic gas. Carbon monoxide can cause
people to lose consciousness. It can also
cause death.
● Never switch on the auxiliary heater or
leav
e it running in enclosed spaces or areas
with no ventilation.
● Never programme the auxiliary heater so
that it
switches itself on and is running in an
enclosed space or an area with no ventila-
tion. WARNING
The components of the auxiliary heater are
extr emely
hot and could cause a fire.
● Always park your vehicle so that no part of
the exhau
st system can come in contact with
easily flammable materials that might be be-
low the vehicle, such as dried grass. CAUTION
Never place food, medicines or other temper-
atur e-
sensitive objects close to the air vents.
Food, medicines and other objects sensitive
to heat or cold may be damaged or made un- suitable for use by the air coming from the
vent
s. Note
After switching the engine on with a 12-volt
b att er
y that is heavily discharged or newly
changed or after a jump start some system
settings (such as the time, the date, the per-
sonalised comfort settings and the program-
ming) might be altered or deleted. Check and
correct these settings once the battery is suf-
ficiently charged. Switching on and off the auxiliary
he
at
er
Switching the auxiliary heater on:
Manually with the fast heating button of the air
conditioner controls. The control lamp of the
button will light up
››› page 170.
Manually with the remote control
››› page 178.
Automatically by programming and activating a
departure time ››› page 179.
Switching the auxiliary heater off:
Manually with the fast heating button of the air
conditioner controls. The control lamp of the
button goes off
››› page 170.
Manually with the remote control
››› page 178.» 177
Technical data
Advice
Operation
Emergencies
Safety
OperationSwitching the auxiliary heater off:
Automatically once the programmed departure
time has arrived or after the programmed oper-
ating time has elapsed
››› page 179.
Automatically when the control lamp (fuel
level indicator) ››› page 292 lights up.
Automatically when the 12-volt battery charge
is too low ››› page 305. Special feature
Once sw
it
ched off, the auxiliary heater will
continue to operate for a short period of time
in order to burn the fuel remaining in the sys-
tem and also to expel the exhaust fumes.
Remote control Fig. 176
Auxiliary heater: remote control.
Fig. 176Meaning
Switch the auxiliary heater on
Switch the auxiliary heater off
1Control lamp
If the buttons of the remote control are press-
ed unnec
e
ssarily, it could switch on the auxil-
iary heater involuntarily, even when it is out
of range or when the control lamp is flashing.
Control lamp on the remote control
When the buttons are pressed, the control
lamp on the remote control provides the user
with different information:
Control lamp 1Meaning
It will light for about 2 sec-
onds in green.The auxiliary heater has
been switched on using
the
button.
It will light for about 2 sec-
onds in red.The auxiliary heater has
been switched off using
the
button.
It flashes green slowly for
approximately 2 seconds
(approximately 4 times per
second).No on a)
signal has been
received.
Control lamp 1Meaning
It flashes green quickly for
approximately 2 seconds
(approximately 10 times
per second).The auxiliary heater is
locked.
Possible causes: The fuel
tank is almost empty, the
12-volt battery charge is
too low or there is a fault.
It flashes orange for ap-
proximately 2 seconds
(approximately 4 times per
second).No off a)
signal has been
received.
It will light for about 2 sec-
onds in orange, then
green or red.The remote control battery
is almost flat. However,
the on or off signal has
been received.
It will light for about 2 sec-
onds in orange, then it
flashes green or red.The remote control battery
is almost flat. No on or off
signal has been received.
It flashes orange for ap-
proximately 5 seconds.The remote control battery
is flat. No on or off signal
has been received.
a) The remote control is out of range. In this case it will be nec-
essary to get closer to the vehicle and press the corresponding
button again.
Replacing the remote control battery
If, when pressing the buttons of the remote
control, control lamp 1 flashes orange for
ap pr
o
ximately 5 seconds or it does not
switch on, the remote control battery will
need replacing.
178
Air conditioning
The battery is located beneath a cover on the
b ac
k
of the remote control.
● To open the cover, lift it slightly at the bot-
tom and slide it
down.
● Remove the old battery.
● Insert the new battery. When doing so, take
into acc
ount the polarity and use batteries of
the same type ››› .
● Replace the battery cover by inserting the
t ab
s
at the top and pressing the bottom.
Range
The receiver is inside the vehicle. The remote
control, when fitted with new batteries, has a
range of several hundred metres. Obstacles
between the remote control and the vehicle,
bad weather conditions and discharged bat-
teries can considerably reduce the range of
the remote control. CAUTION
● The ra dio fr
equency remote control con-
tains electronic components. Therefore, avoid
getting it wet and exposing it to knocks or di-
rect sunlight.
● The use of inappropriate batteries may
damag
e the radio frequency remote control.
For this reason, always replace the used bat-
tery with another of the same voltage, size
and specifications. For the sake of the environment
● Ple a
se dispose of your used batteries cor-
rectly and with respect for the environment.
● The remote control battery may contain
perch
lorate. Observe the legal provisions re-
garding disposal.
● Care should be taken so as not to operate
the remote c
ontrol unintentionally so as to
prevent the auxiliary heater being switched
on accidentally. Programming the auxiliary heater
Before pr
ogramming it, check that the vehi-
c l
e's date and time are set correctly ››› .
The aux i
li
ary heater is programmed in the
Auxiliary heater menu of the infotain-
ment system.
Open the Auxiliary heater menu.
● Press the button in the Clim
atronic
control panel.
● Press the function b
utton.
Function button: function
Switch off: The auxiliary heater is immediately switched
off.
Function button: function
Heat, Ventilate: Set to heat or ventilate the vehicle interi-
or when the auxiliary heater is switched on. By pressing
the function button
, you can select the desired
mode.
Set: Opens the Auxiliary heater menu.
Departure time 1, Departure time 2, Departure time 3:
Three different departure times (hh.mm) may be
programmed. If the auxiliary heater should only
be switched on a certain day of the week, this can
also be selected.
Duration: The duration determines the operating
time of the auxiliary heater when switched on us-
ing the fast heating button
on the air condi-
tioning controls. The duration is also used to cal-
culate the departure time for the manual air con-
ditioner. It can be set between 10 and 60 mi-
nutes at 10-minute intervals.
This returns to the main menu.
The programmed departure time determines
the ap
pr
o
ximate time it should take to reach
the temperature set in the vehicle. The start
of the heating operation is determined auto-
matically depending on the outside tempera-
ture.
Checking the programming
When a departure time is activated and the
ignition is switched off the control lamp of
the fast heating button lights up for ap-
proximately 10 seconds. »
179
Technical data
Advice
Operation
Emergencies
Safety
Operation
WARNING
Never programme the auxiliary heater so that
it sw it
ches itself on and is running in an en-
closed space or an area with no ventilation.
The auxiliary heater exhaust fumes contain
carbon monoxide, an odourless and colour-
less toxic gas. Carbon monoxide can cause
people to lose consciousness. It can also
cause death. Operating instructions
The auxiliary heater exhaust system located
belo
w the
v
ehicle must be kept clear of snow,
mud and other objects. The exhaust fumes
must be able to exit freely. The emissions
generated by the auxiliary heater are re-
moved via an exhaust pipe fitted underneath
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. Directing the diffusers – towards the
windows for example – can affect air distribu-
tion.
When will the auxiliary heater not be activa-
ted?
● The auxiliary heater requires about as
much po w
er as the dipped beam headlights.
If the 12-volt battery charge is too low, the auxiliary heater switches off automatically
and cannot
be sw
itched on. This avoids prob-
lems when starting the engine.
● The heating must be activated every time
you want
to set off. Similarly, the departure
time must reactivate each time.
● The control lamp (fuel l
evel indicator)
lights up. Note
● Noise s
will be heard while the auxiliary
heater is running.
● When the air humidity is high and the in-
side temper
ature low, condensation from the
heating and ventilating system may evapo-
rate when the auxiliary heater is switched on.
In this case, steam may be released from un-
derneath the vehicle. This does not mean
that there is a vehicle malfunction.
● If the vehicle is tilted, e.g. if parked on a
slope, the operation of
the auxiliary heater
may be restricted if the fuel tank level is low
(just above the reserve level).
● If the auxiliary heater is used a number of
times f
or a long period of time, the 12-volt
battery will lose its charge. To recharge the
battery, the vehicle must be driven for a num-
ber of kilometres from time to time. As a
guideline: The journey should last approxi-
mately as long as the heater was connected.
● At temperatures below +5°C (+41°F), the
auxili
ary heater may switch itself on automat-
ically when the engine is switched on. The auxiliary heater is switched off again after a
cer
t
ain time.180
Index
Changing gear en g
agin
g gears (manual gearbox) . . . . . . . . . 192
Changing settings CAR menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Changing the blades . . . . . . . . . . . . . . . . . . . . . . . 97
Changing the wiper blades . . . . . . . . . . . . . . . . . . 71
Charging the battery . . . . . . . . . . . . . . . . . . . . . . 306
Checking levels engine compartment . . . . . . . . . . . . . . . . . . . . 298
Childproof locks electric windows . . . . . . . . . . . . . . . . . . . . . . . . 139
Child seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24, 91 categorisation into groups . . . . . . . . . . . . . . . . . 92
ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
safety instructions . . . . . . . . . . . . . . . . . . . . 24, 90
securing with seat belt . . . . . . . . . . . . . . . . . . . . 25
Top Tether system . . . . . . . . . . . . . . . . . . . . . 26, 29
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285 alcantara . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
carbon parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Easy Connect control panel . . . . . . . . . . . . . . . 289
exhaust pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
fabrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
leather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
natural leather . . . . . . . . . . . . . . . . . . . . . . . . . 291
plastic parts . . . . . . . . . . . . . . . . . . . . . . 288, 289
radio screen . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
rims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
trims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
washing the vehicle . . . . . . . . . . . . . . . . . . . . . 285
windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Climatronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Close sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
re
ar lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
sun blind (sunroof) . . . . . . . . . . . . . . . . . . . . . . 143
sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Clutch (warning lamp) . . . . . . . . . . . . . . . . . . . . . 199
Coming Home . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Coming Home function . . . . . . . . . . . . . . . . . . . . 148
Connectivity Box . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Control and warning lamps . . . . . . . . . . . . . 46, 119 adaptive cruise control . . . . . . . . . . . . . . . . . . . 222
airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
applying the brake . . . . . . . . . . . . . . . . . . . . . . 222
ASR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
audible warning signal . . . . . . . . . . . . . . . . . . 119
blind spot detector (BSD) . . . . . . . . . . . . . . . . 237
cruise control system (CCS) . . . . . . . . . . . . . . . 212
depress the brake . . . . . . . . . . . . . . . . . . . . . . . 217
diesel particulate filter . . . . . . . . . . . . . . . . . . . 204
electromechanical steering . . . . . . . . . . . . . . . 200
emission control . . . . . . . . . . . . . . . . . . . . . . . . 205
engine management . . . . . . . . . . . . . . . . . . . . 205
engine pre-heating/fault system . . . . . . . . . . . 205
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
gear change . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Hill Descent Control . . . . . . . . . . . . . . . . . . . . . 210
instrument panel . . . . . . . . . . . . . . . . . . . . . 46, 48
instrument panel display . . . . . . . . . . . . . . . . . . 47
Lane Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
parking assistant (RCTA) . . . . . . . . . . . . . . . . . 237
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
remote control (auxiliary heater) . . . . . . . . . . . 178
seat belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
speed limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 Start-Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
tow hit
ch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
towing bracket . . . . . . . . . . . . . . . . . . . . . . . . . 275
tyre monitoring system . . . . . . . . . . . . . . . . . . 312
Controls and displays general instrument panel . . . . . . . . . . . . . . . . . 113
Controls for the windows . . . . . . . . . . . . . . . 18, 139
Controls on the steering wheel operating the audio, telephone and naviga-tion system . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Coolant checking level . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Cooling coolant temperature gauge . . . . . . . . . . . . . . . 117
Cooling system checking coolant . . . . . . . . . . . . . . . . . . . . . . . 302
topping up coolant . . . . . . . . . . . . . . . . . . . . . . 302
Cornering lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Correct position . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
front passenger . . . . . . . . . . . . . . . . . . . . . . . . . 75
Correct sitting position rear seat passengers . . . . . . . . . . . . . . . . . . . . . 76
Cruise control . . . . . . . . . . . . . . . . . . . . . . . . 44, 212 operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Cruise control system . . . . . . . . . . . . . . . . . . . . . . 212 warning and indication lamp . . . . . . . . . . . . . . 212
D Dangers in not using the seat belt . . . . . . . . . . . . 81
Dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Data sticker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Deactivating the front passenger front airbag . . . 22
Deactivation of front airbag . . . . . . . . . . . . . . . . . . 88
Defective bulbs changing a bulb . . . . . . . . . . . . . . . . . . . . . . . . 106
331
Index
automatic activation . . . . . . . . . . . . . . . . . . . . 260
driv in
g w
ith a trailer . . . . . . . . . . . . . . . . . . . . . 262
malfunction . . . . . . . . . . . . . . . . . . . . . . . 261, 265
rear parking aid . . . . . . . . . . . . . . . . . . . . . . . . 262
sensors and camera: cleaning . . . . . . . . . . . . . 287
towing bracket . . . . . . . . . . . . . . . . . . . . . . . . . 265
visual indication . . . . . . . . . . . . . . . . . . . 260, 264
Parking aid system see Parking aid . . . . . . . . . . . . . . . . . . . . 257, 262
Parking assistance parking system plus . . . . . . . . . . . . . . . . . . . . . 257
see Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . 249
surroundings warning . . . . . . . . . . . . . . . . . . . 257
Parking assistance (RCTA) . . . . . . . . . . . . . . . . . . 237 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Parking assistant . . . . . . . . . . . . . . . . . . . . . . . . . 241
Parking assistant (RCTA) . . . . . . . . . . . . . . . . . . . 241
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186 activate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
automatic activation . . . . . . . . . . . . . . . . . . . . 187
automatic release . . . . . . . . . . . . . . . . . . . . . . . 186
emergency braking function . . . . . . . . . . . . . . 187
release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Parking distance warning system see Parking aid . . . . . . . . . . . . . . . . . . . . 257, 262
Parking (automatic gearbox) . . . . . . . . . . . . . . . . 196
ParkPilot see Parking aid . . . . . . . . . . . . . . . . . . . . 257, 262
Particulate filter (diesel) . . . . . . . . . . . . . . . . . . . 204
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Passenger see Correct sitting position . . . . . . . . . 74, 75, 76
Passenger-side instrument panel left-hand drive . . . . . . . . . . . . . . . . . . . . . . . . . . 12
right-hand drive . . . . . . . . . . . . . . . . . . . . . . . . . 13
Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Petrol
additiv es . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Plastic parts: cleaning . . . . . . . . . . . . . . . . 288, 289
Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Positioning seat belts during pregnancy . . . . . . . . . . . . . . . . . . . . . . . . 83
seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Power management . . . . . . . . . . . . . . . . . . . . . . . 203
Power socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Power steering see Electromechanical steering . . . . . . . . . . . . 200
Pre-heating system control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Preheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Preheating the engine . . . . . . . . . . . . . . . . . . . . . 184
Press & Drive starter button . . . . . . . . . . . . . . . . . . . . . . . . . . 183
starting the engine . . . . . . . . . . . . . . . . . . . . . . 184
Puncture action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
R Racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Radar sensor . . . . . . . . . . . . . . . . . . . . . . . . 219, 223
Radio-operated remote control see Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Radio screen: cleaning . . . . . . . . . . . . . . . . . . . . 289
Radio transmitters . . . . . . . . . . . . . . . . . . . . . . . . 284
Rain sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 control of the function . . . . . . . . . . . . . . . . . . . 154
Raising the vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 66
RCTA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241 see Parking assistance (RCTA) . . . . . . . . . . . . . 237 Rear
headr ests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Rear-view mirror anti-dazzle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
interior anti-dazzle . . . . . . . . . . . . . . . . . . . . . . 155
Rear Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270 instructions for use . . . . . . . . . . . . . . . . . . . . . 271
parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
special characteristics . . . . . . . . . . . . . . . . . . . 271
Rear Assist system . . . . . . . . . . . . . . . . . . . . . . . . 270
Rear bulbs in the side panel disassemble the rear light . . . . . . . . . . . . . . . . 109
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16, 17 see also Luggage compartment . . . . . . . . . . . 137
Rear lights in the rear lid disassemble the bulb holder . . . . . . . . . . . . . . 110
Rear parking aid . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Rear seat backrest folding down . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
folding down and lifting the backrest . . . . . . . 159
lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Rear seat passengers see Correct sitting position . . . . . . . . . 74, 75, 76
Rear shelf storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Rear View Camera . . . . . . . . . . . . . . . . . . . . . . . . . 270
Refuelling fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
opening fuel tank flap . . . . . . . . . . . . . . . . . . . 292
Remote control key unlocking and locking . . . . . . . . . . . . . . . . . . . 127
Remote control (auxiliary heater) . . . . . . . . . . . . 178 replacing the battery . . . . . . . . . . . . . . . . . . . . 178
Removing and attaching head restraints . . . . . . 157
Repair work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
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