38Keys, doors and windowsActivation without monitoring of
passenger compartment
Disable monitoring of the passenger
compartment, e.g. when animals are
being left in the vehicle, or if the
auxiliary heater has been set for a
timed or remote controlled start
3 122.
Press and hold e on the remote
control or electronic key. An audible
signal will sound as confirmation.
The status will remain until the doors
are unlocked.
Alarm When triggered, the alarm sounds via a separate battery-backed power
sounder, and the hazard warning
lights flash simultaneously. The
number and duration of alarm signals are stipulated by legislation.
If the vehicle battery is disconnected
or its power supply is interrupted, the
alarm siren will be triggered. First
deactivate the anti-theft alarm system
if the vehicle battery must be
disconnected.To silence the alarm siren (if
triggered) and therefore deactivate
the anti-theft alarm system, reconnect vehicle battery and unlock the vehicle
or switch on the ignition.
Immobiliser
The immobiliser is part of the ignition
switch and checks whether the
vehicle is allowed to be started with
the key being used.
The immobiliser is activated
automatically after the key has been
removed from the ignition switch and
also if the key is left in the ignition
switch when the engine is turned off.
If the engine cannot be started, switch off the ignition and remove key, wait
approx. two seconds and then repeat
the start attempt. If start attempt is
unsuccessful, attempt to start the
engine using the spare key and seek
the assistance of a workshop.Notice
Radio Frequency Identification
(RFID) tags may cause interference with the key. Do not have it placednear the key when starting the
vehicle.
Notice
The immobiliser does not lock the doors. You should always lock the
vehicle after leaving it and switch on
the anti-theft alarm system 3 24,
3 36.
122Climate controlSet the fan < to regulate the amount
of cooled air to be flown into the rear
passenger compartment.
Auxiliary heater Coolant heater
The engine-independent, fuel-
powered coolant heater provides
rapid heating of the engine coolant to
enable heating of the vehicle interior
without the engine running.9 Warning
Do not operate the system when
refuelling, when dust or
combustible vapours are present
or in enclosed spaces (e.g.
garage).
Before starting or programming the
system to start, turn the vehicle's
climate control system to heat, set the
air distribution to V and turn the fan
on.
Switch off when not required. Heating stops automatically after the
programmed runtime. It will also
cease to operate if the vehicle fuel
level drops too low.
During operation, power from the
vehicle battery is used. The driving
time should therefore be at least as
long as the heating time. For short
journey times, check the vehicle
battery regularly and recharge if
necessary.
To ensure efficient performance,
briefly operate the auxiliary heater
once a month.
Control units
The timer or remote control unit turns the system on and off, and is used to
programme specific departure times.Timer (Type A)1 Display:Displays preset, current
time or preset time,
temperature, Y and Ö2 l:Adjusts values up3 7:Long press: switch
heater on, short press:
turns display on or
confirms selection4 d:Long press: switch
heater off, short press:
turns display on or exit
menu5 k:Adjusts values down
124Climate control2 l:Adjusts values up3
OFF:Switch heater off, or press
Y and OFF simultaneously
to confirm selection4 Y:Switch heater on, or press Y
and OFF simultaneously to
confirm selection5 k:Adjusts values down
If no buttons are pressed within
30 seconds the display automatically
turns off.
9 Warning
When refuelling, switch off the
remote control unit as well as the
heater!
The remote control has a maximum
range of 1000 m. The range may be
reduced due to environmental
conditions and as the battery
becomes weaker.
Remote control (Type B) fault
displaysZ:poor signal – adjust positionFAIL:error during signal
transmission –
move closer or check heater
fuseÜ:battery low – replace battery
Teach remote control (Type B)
Up to four additional remote control
units may also be configured. During
additional teaching processes, the
oldest transmitter will be deleted each
time.
Remove the heater fuse for
5 seconds, then refit the fuse. Within
2–6 seconds press OFF for
1 second. Teaching is completed.
If the remote has not been used for a long period, press the OFF button six
times at intervals of 2 seconds, then
press and hold for another
2 seconds, then wait 2 minutes.
Manual control
Depending on version, the auxiliary
heater can also be switched on for the
last duration time or the default
duration 30 minutes, or cut-off
immediately, using the button on the
lower part of the instrument panel,
beside the steering wheel.
The LED in the button confirms
operation.
Battery replacement
Replace the battery when the range
of the remote control is reduced or when the battery charge symbol
flashes.
Vehicle care1719Danger
Ensure adequate ventilation when
charging the battery. There is a
risk of explosion if gases
generated during charging are
allowed to accumulate!
Jump starting 3 196.
Warning label
Meaning of symbols: ● No sparks, naked flames or smoking.
● Always shield eyes. Explosive gases can cause blindness or
injury.
● Keep the vehicle battery out of reach of children.
● The vehicle battery contains sulfuric acid which could cause
blindness or serious burn
injuries.
● See the Owner's Manual for further information.
● Explosive gas may be present in the vicinity of the battery.Additional battery
Depending on the vehicle's auxiliary
equipment, certain models may have
an additional battery mounted under
the front passenger bench seat.
Notice
The additional battery is
automatically connected to the main vehicle battery only when the engine
is running. It does not need to be
manually disconnected before
230IndexAAbsorptive Glass Mat battery .....170
Accessories and vehicle modifications .......................... 164
AdBlue .................. 99, 104, 140, 204
AdBlue tank ................................ 219
Adjustable air vents ...................127
AGM battery ............................... 170
Airbag and belt tensioners ...........96
Airbag deactivation ................62, 96
Airbag label............................. 58, 62
Airbag system .............................. 58
Air conditioning regular operation ................................ 128
Air conditioning system .............. 117
Air intake .................................... 128
Air recirculation ...................117, 198
Air vents...................................... 127
Alert ............................................ 103
Antifreeze ................................... 168
Antilock brake system ................ 146
Antilock brake system (ABS) .......98
Anti-theft alarm system ................36
Anti-theft bolts............................. 193
Anti-theft locking system .............. 35
Anti-theft security lock ..................24
Appearance care ........................199
Armrest ........................................ 48
Ashtrays ....................................... 88 Automatic anti-dazzle ..................41Automatic fuel cut-off ..................134
Automatic light control ...............109
Automatic locking ........................30
Autostop ............................. 133, 135
Auxiliary heater ........................... 122
B Battery ........................................ 170
Battery discharge protection ......115
Battery, jump starting.................. 196
Belts.............................................. 53
Bench seat.................................... 74
BlueInjection ............................... 140
Bonnet ....................................... 165
Bottle holders................................ 74
Brake and clutch fluid .................204
Brake assist ............................... 147
Brake fluid .................................. 169 Brakes ............................... 146, 169
Brake system ............................... 97
Breakdown.................................. 198
Bulb replacement ....................... 174
C
Capacities .................................. 219
Car Pass ...................................... 20
Catalytic converter .....................139
Central locking system ................24
Centre high-mounted brake light 176
Changing tyre and wheel size ...189
Charging system .......................... 97