After switching off the auxiliary heating, the coolant pump runs for a short period.
The auxiliary heater does not switch on: › when the following appears in the instrument cluster display, or the the follow-
ing was displayed before the ignition was turned off: Please refuel. Range: ...
km or PLEASE REFUEL ;
› when the charge state of the vehicle battery is too low;
› when no pre-set time is activated.
setting
First read and observe the introductory information and safety warn-
ings
on page 88.
Information on the setting » Bedienungsanleitung Infotainment, chapter Setting
vehicle systems (CAR button) .
Before the setting is started, check the correct time and date settings.
Checking the settings
When the departure time is activated, the indicator light in the button
lights up
for around 10 seconds after the ignition is turned off.
Remote control
Fig. 88
Auxiliary heater: Radio remote control
First read and observe the introductory information and safety warn-
ings
on page 88.
Explanation of graphicAAerialBBattery coverCWarning lightSwitch on the auxiliary heatingSwitch off the auxiliary heating
The transmitter and the battery are housed in the housing of the remote control.
The receiver is located in the interior of the vehicle.
When the battery is fully charged, the range of the remote control is a few hun-
dred metres. Obstacles between the radio remote control and the vehicle, bad
weather conditions and a weaker battery can clearly reduce the range.
To switch the auxiliary heating on or off, hold the remote control vertical, with the
aerial pointing upwards. The antenna must not be covered with the fingers or the palm of the hand during this process.
The auxiliary heating can only be switched on/off safely using the radio remote 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 C » Fig. 88DescriptionLights up green for around 2 seconds.The auxiliary heating was switched on.Lights up red for around 2 seconds.The auxiliary heating was switched off.Slowly flashes green for around 2 sec-
onds.The ignition signal was not received.Quickly flashes green for around 2 sec-
onds.The auxiliary heating is blocked, e. g
because the tank is nearly empty or
there is a fault in the auxiliary heating.Flashes red for around 2 seconds.The switch off signal was not received.Lights up orange for around 2 seconds,
then green or red.The battery is weak, however the
switching on or off signal was received.Lights up orange for around 2 seconds,
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 re-
ceived. 90Using the system
CAUTIONThe radio remote control comprises electronic components and must therefore be
protected against water, severe impacts and direct sunlight.
Replacing the battery in the remote control
First read and observe the introductory information and safety warn-
ings
on page 88.
If the indicator light
C
» Fig. 88 on page 90on the radio remote control indicates
a weak or discharged battery, it must be replaced.
The battery is located under a cover
B
» Fig. 88 on page 90 on the back of the
radio remote control.
›
Insert a flat, blunt object, such as a coin, into the gap of the battery cover.
›
Turn the cover against the direction of the arrow up to the mark to open the cover.
›
Replace the battery.
›
Return the battery cover.
›
Turn the cover in the direction of the arrow up to the initial marking, engage.
When replacing the battery, pay attention to the correct polarity.
The replacement battery must have the same specification as the original battery.
For the sake of the environment
Dispose of the used battery in accordance with national legal provisions.
91Heating and air conditioning system
Index
A
ABS Function
113
Warning light17
Accessories165
Active driver-steering recommendation (DSR)112
Adjusting Exterior mirror
58
Interior mirror57
Adjusting seats139
Adjustment Seat
60
Aerial160
see Radio reception162
Airbag146
Deployment146
Front airbag147
Head airbag150
Knee airbag148
Side airbag149
Airbag system146
Air conditioning system Air outlets
82
Climatronic86
Manual air conditioning system84
Air outlets82
Alarm35
Anti-theft alarm system35
Antilock brake system113
Armrest Front
76
rear64
Ashtray70
Assist systems ABS
17, 113
Cruise control systems (CCS)119
EDL114
ESC17, 112
Headlight assist47
Lane Assist126
Park Assist116
Parking aid114
ProActive passenger protection125
Select driving mode124
START/STOP121
TCS16, 113
Auto Check Control12
Automatic driving lamp control45
Automatic gearbox Dynamic shift programme
132
Emergency programme132
Kickdown132
Selector lever-emergency unlocking133
Selector lever lock131
Selector lever positions130
Starting-off and driving130
Tiptronic131
Automatic load deactivation180
Automatic transmission129
Auxiliary heating and cooling system Switching on/off
89
Auxiliary heating (auxiliary heating and ventila- tion)
88
setting90
B
Ball rod Check attachment
108
installing107
Ready position107
removing108
Battery Replacing the battery in the remote control(aux-
iliary heating)
91
Before setting off138
Belt tensioners145
Bonnet Closing171
Opening171
Boot Cover
67
Fastening elements65
Fixing of the floor covering66
Light65
see Boot lid37
Boot lid37
Automatic locking38
Brake booster97
Brake fluid Checking
175
Brake pads Indicator light
20
Brakes Brake assist systems
112
Brake booster97
Handbrake98
Running in100
Warning light14
Braking Brake fluid
175
Information for braking97
Breakdown kit192
Break recommendation see Fatigue detection
27
Bulbs Replacing
202
Button in the driver's door Electrical power windows
38
C
Car computer see Multifunction display
22
Car jack188
Carrier68
Catalytic converter100
Central locking button32
212Index
Hazard warning light system49
Headlight beam adjustment44
Headlight flasher45
Main beam45
parking light45
Parking light44
Rear fog light48
Replacing bulbs202
Tourist light46
Turn signal light45
Lights Low beam
44
switching on and off44
Warning lights12
Loads207
Locking Remote control
32
Locking and unlocking from the inside32
Lock the vehicle Keys
31
Luggage compartment Emergency unlocking
38
Fixing nets66
Folding double hooks66
Unlocking the luggage compartment lid38
M
Mirror Exterior mirror
58
Vanity53
Mobile phone134
Multicollision brake112
Multifunction display Functions
22
Memory22
Select data22
Multimedia135
AUX137
MEDIA IN137
USB137
N
Nets
66
O
Oil refer to Engine oil
172
Onboard computer see Multifunction display
22
Operation in winter De-icing windows
162
Diesel fuel169
Vehicle battery179
Outside temperature21
Overview Engine compartment
172
Warning lights12
P
Paint see Paint damage
161
Paint damage161
Parking automatic brake assist
116
Manoeuvring out of a parallel parking space116
Park Assist116
Parking aid114
Parking ticket holder80
Passive Safety138
Pedals99
Petrol refer to Fuel
168
Polishing the paintwork refer to Taking care of your vehicle
161
Power sockets 12 V
71
230 V71
Power steering93
Power windows Button in the front passenger door40
Preservation refer to Taking care of your vehicle
161
ProActive passenger protection125
R
Radiator fan
175
Radio reception Aerial
162
Functional fault162
Raise vehicle191
Rear mirror56
Exterior mirror58
Interior mirror57
Rear seats Seat backrest
63
Rear window - heating52
Recirculated air mode Climatronic
87
Manual air conditioning system85
Recommended gear21
Refuelling167
Fuel167
Regulation Headlight beam
44
Remote control32
Auxiliary heating (auxiliary heating)90
Synchronisation process33
Remote control key Replacing the battery
28
Replacement of parts165
replacing Vehicle battery
179
Replacing bulbs
202
Fuses199
The rear window wiper blade56
Wiper blades56
215Index
Towing196
Towing a trailer106
Towing device Description
106
Drawbar load106
Towing eye front
197
Rear197
Towing protection36
Traction control system (TCS)113
Traffic sign recognition25
Traffic signs see Traffic sign recognition
25
Trailer106
13-pin power socket110
driving with a trailer110
loading109
Safety eye110
Transport Boot
64
Roof rack system68
Transporting children safely154
Two-way radio systems134
Type plate207
Tyre control display Calibration
185
Tyre load-bearing capacity see Wheels
184
Tyre repair192
Tyres see Wheels
183
U
Underbody protection
163
Unlocking Remote control
32
Unlock the vehicle Keys
31
V
Vehicle battery Automatic load deactivation
180
charging179
Checking the electrolyte level179
Operation in winter179
replacing179
Safety instructions176
Vehicle care Alcantara
164
Artificial leather164
Cloths164
Vehicle Condition see Auto Check Control
12
Vehicle data sticker207
Vehicle dimensions208
Vehicle height208
vehicle identification number - VIN (vehicle body number)
207
Vehicle key28
Vehicle length208
Vehicle tool kit188
Vehicle width208
Vest Holder for reflex vest
74
Visors see Sun screen
53
see Sun visors53
W
Warning lights
12
Warning symbols see Warning lights
12
Warning triangle188
Washing159
Automatic car wash system160
by hand160
Chrome parts161
High-pressure cleaner161
Weights207
Wheel bolts Anti-theft wheel bolt
192
Caps185
Loosening and tightening191
Wheel rims181
Wheels Bolts
186
changing189
Full trim185
General information181
Load index184
Low-profile tyres184
new tyres183
replacing wheels182
Snow chains186
Spare wheel184
Speed symbol183
Store wheels182
Tyre inflation pressure182
Tyre life182
Winter tyres186
Window Interior mirror
57
Window convenience operation40
Windows De-icing
162
See Electrical power windows38
Windscreen heating
52
see Radio reception162
Windscreen washer fluid Checking
176
Replenishing176
Warning light19
Winter176
Windscreen washer system176
Windscreen wipers54
217Index