Page 89 of 173

Climate control87Auxiliary heater
Coolant heater The Eberspächer 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 and the
air distribution to V.
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.
Timer1
X Activation
button=Switches the control
unit on/off and
changes displayed
information2 q Back
button=Selects functions in
the menu bar and
adjusts values3 Menu bar=Displays the
selectable functions
Y , x , P , Ö and Y4 r Next
button=Selects functions in
the menu bar and
adjusts values5 OK button=Confirms selection
Remote control
Page 124 of 173

122Vehicle care
Battery access
The vehicle battery is located beneath the front left hand seat floor
panel 3 139.
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 containssulfuric 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.
Vehicle battery maintenance9 Danger
Ensure adequate ventilation when
charging the battery. There is a
risk of explosion if gases
generated during charging are
allowed to accumulate!
Replacing the vehicle battery
When the vehicle battery is being replaced, please ensure that there
are no open ventilation holes in the
vicinity of the positive terminal. If a
ventilation hole is open in this area, it
must be closed off with a dummy cap,
and the ventilation in the vicinity of the negative terminal must be opened.
We recommend that you have the
vehicle battery replaced by a
workshop.
Additional battery
Depending on the vehicle's auxiliary
equipment certain models may have
an additional battery located next to
the vehicle battery.
Diesel fuel filter
Drain diesel fuel filter of residual
water at every engine oil change.
Page 168 of 173

166IndexAAccessories and vehicle modifications .......................... 115
Adjustable air vents .....................90
Airbag and belt tensioners ...........70
Airbag deactivation ................47, 70
Airbag system .............................. 42
Air conditioning regular operation 91
Air conditioning system ................ 85
Air intake ...................................... 91
Air vents........................................ 90
Alert .............................................. 75
Antifreeze ................................... 119
Antilock brake system ................ 101
Antilock brake system (ABS) .......72
Anti-theft alarm system ................26
Anti-theft locking system .............. 25 Appearance care ........................143
Armrest ........................................ 35
Ashtrays ....................................... 65 Automatic light control .................79
Automatic locking ........................23
Auxiliary heater ............................. 87
B Battery, jump starting.................. 139
Belts.............................................. 39
Bonnet ....................................... 116
Brake and clutch fluid .................147Brake assist ............................... 102
Brake fluid .................................. 121
Brakes ............................... 101, 121
Brake system ............................... 71
Breakdown.................................. 141
Bulb replacement ....................... 124
C Capacities .................................. 162
Car Pass ...................................... 18
Catalytic converter .......................96
Central locking system ................20
Centre high-mounted brake light 126
Changing tyre and wheel size ...133
Charging system .......................... 71
Child locks ................................... 23
Child restraint installation locations ................................... 49
Child restraint systems ................48
Cigarette lighter ........................... 64
Cleaning the vehicle ...................143
Climate control ............................. 15
Clock ............................................ 63
Code ............................................. 75
Control indicators.......................... 68
Control of the vehicle ...................93
Controls ........................................ 60
Controls in steering wheel ............60
Convex shape .............................. 28
Coolant ....................................... 119