
Climate control115Climate controlClimate control systems.............115
Heating and ventilation system 115
Air conditioning system ...........116
Electronic climate control system .................................... 117
Rear heating system ...............119
Rear air conditioning system ...121
Auxiliary heater ........................122
Air vents ..................................... 128
Adjustable air vents .................128
Fixed air vents ......................... 129
Glovebox cooler ......................129
Maintenance .............................. 129
Air intake ................................. 129
Pollen filter ............................... 129
Air conditioning regular operation ................................ 129
Service .................................... 129Climate control systems
Heating and ventilation system
Controls for: ● temperature
● fan speed
● air distribution
● demisting and defrosting
Heated rear window Ü 3 39, Heated
seats ß 3 48.
Temperaturered:warmblue:cold
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Fan speed
Adjust the air flow by switching the fan
to the desired speed.
Air distribution
M:to head areaL:to head area and foot wellK:to foot wellJ:to windscreen, front door
windows and foot wellV:to windscreen and front door
windows
Intermediate settings are possible.
Demisting and defrosting the
windows
● Set temperature control to warmest level.
● Set fan speed to highest level.

118Climate controlAutomatic mode
Basic setting for maximum comfort: ● Press AUTO ("AUTO" appears in
the display).
● Set desired temperature (the temperature appears in the
display).
● Open all air vents.
During automatic mode, the settings
for fan speed, air distribution, air
conditioning and air recirculation are
automatically regulated by the system and are not shown on the display.
Temperature preselection
Temperatures can be set to the
desired value with the two buttons
below the display.
For reasons of comfort, change
temperature only in small increments.red:warmblue:cold
Heating will not be fully effective until
the engine has reached normal
operating temperature.
If the minimum temperature of 15 ℃
is set, the electronic climate control
system runs at maximum cooling.
If the maximum temperature of 27 ℃
is set, the electronic climate control
system runs at maximum heating.
Notice
If the temperature is to be reduced
for climate comfort reasons, an
Autostop can be inhibited or the
engine will restart automatically
when cooling is switched on.
Stop-start system 3 135.
Fan speed
Fan speed can be increased or
decreased with the x buttons.
The selected fan speed is indicated
with x in the display.
If the fan is switched off, the air
conditioning is also deactivated.
To return to automatic mode: Press
AUTO .
Demisting and defrosting the
windows
Press V; LED illuminates.Temperature and air distribution are
set automatically, air conditioning is
switched on and the fan runs at a high
speed.
Heated rear window, heated exterior
mirrors are also switched on
automatically. Press Ü to switch off
without deactivating demisting/
defrosting of the windows. The fan
speed can also be decreased.
To return to automatic mode: press
V or AUTO .
Notice
If V is pressed while the engine is
running, an Autostop will be inhibited
until V is pressed again.
If V is pressed while the engine is
in an Autostop, the engine will restart automatically.
Stop-start system 3 135.
Air distribution
Press ï or î repeatedly.

Driving and operating131Driving and
operatingDriving hints ............................... 132
Driving economically ...............132
Control of the vehicle ...............132
Steering ................................... 132
Starting and operating ...............133
New vehicle running-in ............133
Ignition switch positions ...........133
Starting the engine ..................134
Idle speed control ....................135
Overrun cut-off ........................ 135
Stop-start system ....................135
Parking .................................... 138
Air suspension ......................... 139
Engine exhaust .......................... 141
Diesel particle filter ..................141
Catalytic converter ...................141
AdBlue ..................................... 142
Manual transmission ..................149
Manual transmission automa‐ ted .............................................. 149
Transmission display ...............149
Starting the engine ..................150
Selector lever .......................... 150Manual mode........................... 151
Electronic driving programmes 151
Fault ........................................ 152
Interruption of power supply ....153
Brakes ........................................ 153
Antilock brake system .............153
Parking brake .......................... 154
Brake assist ............................. 155
Hill start assist ......................... 155
Ride control systems .................155
Traction Control system ..........155
Electronic stability program .....156
Limited-slip rear axle ...............158
Driver assistance systems .........158
Cruise control .......................... 158
Speed limiter ........................... 162
Parking assist .......................... 162
Rear view camera ...................164
Lane departure warning ..........166
Fuel ............................................ 167
Fuel for diesel engines ............167
Refuelling ................................ 168
Fuel consumption - CO 2-
Emissions .............................. 169
Trailer hitch ................................ 170
General information .................170
Driving characteristics and towing tips .............................. 170
Trailer towing ........................... 170Towing equipment ...................171
Trailer stability assist ...............171
Auxiliary features .......................171
Power take-off ......................... 171

142Driving and operatingMalfunction indicator light 3 96.
AdBlue
General information
The selective catalytic reduction
(BlueInjection) is a method to
substantially reduce the nitrogen
oxides in the exhaust emission. This
is achieved by injecting a Diesel
Exhaust Fluid (DEF) into the exhaust
system.
The designation of this fluid is
AdBlue ®
. It is a non-toxic, non-
flammable, colourless and odourless
fluid which consists of 32% urea and
68% water.9 Warning
Avoid contact of your eyes or skin
with AdBlue.
In case of eye or skin contact,
rinse off with water.
Caution
Avoid contact of the paintwork with AdBlue.
In case of contact, rinse off with water.
AdBlue freezes at a temperature of
approx. -11 °C. As the vehicle is
equipped with an AdBlue pre-heater,
the emissions reduction at low
temperatures is ensured. The AdBlue
pre-heater works automatically.
AdBlue gauge
In versions without AdBlue level
warnings in the Driver Information
Centre, an AdBlue gauge is present,
which shows the current AdBlue fluid
level remaining in the tank.
AdBlue gauge 3 90.
Level warnings
The AdBlue consumption is approx.
3.5 litres per 600 miles (810 mpg) and depends on the driving behaviour.
Version with level warnings in the
Driver Information Centre
If the AdBlue level falls below a
certain value, a level warning will be
displayed in the Driver Information
Centre 3 101.

Driving and operating143
Additionally, control indicator Õ
illuminates continuously together with a warning chime.
Refill the AdBlue tank as soon as
possible. Refer to "Refilling AdBlue"
below.
If AdBlue is not refilled within a certain
distance, further level warnings are
displayed in the Driver Information
Centre depending on the current
AdBlue level.
Engine restarts prevented
Subsequent requests to refill AdBlue
and finally the announcement that an engine restart will be prevented are
displayed in the Driver Information
Centre.Notice
These restrictions are a legal
requirement.
Before the prevention of an engine
restart, a warning message with
0 miles is displayed in the Driver
Information Centre, indicating that after switching off the ignition an
engine restart will be prohibited.
After the prevention of an engine
start, a warning message is displayed in the Driver Information Centre
reminding the driver that AdBlue level
is insufficient.
To allow the engine to be restarted,
the tank should be refilled completely
or with a volume of at least ten litres
of AdBlue, depending on AdBlue
consumption.Warning stages: level warnings,
engine restarts prevented 1. Y illuminates after the ignition is
switched on with warning
message LEVEL ADBLUE LOW :
Driving is possible without any
restrictions.
Refill the AdBlue tank as soon as
possible.2. Y illuminates during driving with
warning message TOP UP
ADBLUE :
Possible loss of engine power.
Refill the AdBlue tank as soon as
possible.
3. Y illuminates during driving with
warning message XXX KM STOP
ADD ADBLUE :
Vehicle speed may be limited to
12 mph after switching the engine off and on again until the range is
reduced to 0 miles.
Refill the tank completely or with a
volume of at least ten litres of
AdBlue (depending on AdBlue
consumption) as soon as
possible.
4. Y illuminates during driving with
warning message 0 KM STOP
ADD ADBLUE :
The engine cannot be restarted
after switching off the ignition.
To allow the engine to be
restarted, refill the tank
completely or with a volume of at
least ten litres of AdBlue
(depending on AdBlue

144Driving and operatingconsumption) as soon as
possible.
Illumination of control indicator Y may
be accompanied by a warning chime.
Warning chimes 3 102.High emission warnings
If the exhaust emission rises above a
certain value, warnings similar to the
range warnings as described above
will be displayed in the Driver
Information Centre. Control indicator
Õ illuminates continuously together
with A 3 96 and a warning chime.
Requests to have the exhaust system checked and finally the
announcement that an engine restart
will be prevented are displayed in the
Driver Information Centre.
Notice
These restrictions are a legal
requirement.
At an AdBlue range of approx.
680 miles, a warning message is
displayed in the Driver Information
Centre showing the remaining
distance the vehicle can travel beforeengine restarts are prevented. This
warning message is repeated approx.
every 60 miles.
Seek the assistance of a workshop as soon as possible.Warning stages: high emission
warnings 1. Y and A illuminate with warning
message CHECK ANTI-
POLLUTION :
Fault in the system that may result in a loss of engine power.
Seek the assistance of a
workshop as soon as possible.
2. Y and A illuminate with warning
message ANTIPOLLUTION xxx
KM FAIL :
Indicates that in less than
680 miles an engine restart will be
prohibited after switching off the
ignition.
This warning message will be
repeated every 60 miles.
Vehicle speed may be limited to
12 mph after switching the engine off and on again until the range is
reduced to 0 miles.Seek the assistance of a
workshop as soon as possible.
3. Y and A illuminate with warning
message ANTIPOLLUTION 0 KM
FAILURE :
The engine cannot be restarted
after switching off the ignition.
Seek the assistance of a
workshop.
Illumination of control indicators Y
and A may be accompanied by a
warning chime.
Warning chimes 3 102.
Version without level warnings in the Driver Information Centre

Driving and operating145When the AdBlue gauge shows the
level is very low, control indicator Õ
first illuminates continuously, then as
AdBlue level drops to a certain
amount Õ flashes for a few seconds
then illuminates continuously.
Refill the AdBlue tank as soon as
possible. Refer to "Refilling AdBlue"
below.
Driving is possible without any
restrictions.Engine power loss
As the AdBlue level drops further,
control indicator Õ flashes for a few
seconds then illuminates
continuously, accompanied by a
warning chime and loss of engine
power.
Notice
These restrictions are a legal
requirement.
If AdBlue is not refilled before the tank
is empty, Õ flashes and after the next
engine restart the vehicle speed will
be limited to approx. 12 mph.Immediately refill the tank completely or with a volume of at least ten litres
of AdBlue, depending on AdBlue
consumption.Warning stages: level warnings,
engine power loss
1. Range A. No control indicator:
Driving is possible without any
restrictions.
2. Range B. Control indicator Y
illuminates:
Refill the AdBlue tank as soon as
possible.
3. Range C. Control indicator Y
flashes for a few seconds each
time the ignition is switched on,
then illuminates continuously:
Refill the AdBlue tank as soon as
possible.
4. Range D. Control indicator Y
flashes for a few seconds each
time the ignition is switched on
then illuminates continuously,
accompanied by a warning chime:
Loss of engine power.
Refill the tank completely or with a
volume of at least ten litres of
AdBlue (depending on AdBlue
consumption) as soon as
possible.
5. Range E. Tank is empty and Y
flashes accompanied by warning chimes:
Vehicle speed will be limited to
12 mph after switching the engine off and on again.
Refill the tank completely or with a
volume of at least ten litres of
AdBlue (depending on AdBlue
consumption) as soon as
possible.

146Driving and operatingHigh emission warnings
If the exhaust emission rises above a certain value, control indicator Õ
illuminates together with A 3 96.
Consult a workshop as soon as
possible.
If the fault is not rectified within a
certain distance, Õ and A flash for
a few seconds then illuminate
continuously. Loss of engine power.
When the fault is critical, Õ and A
flash continuously and after the next
engine restart the vehicle speed will
be limited to approx. 12 mph.
Notice
These restrictions are a legal
requirement.
Seek the assistance of a workshop as
soon as possible.Warning stages: high emission
warnings 1. Y and A illuminate:
Fault in the system.
Seek the assistance of a
workshop as soon as possible.2. Y and A flash when the engine
is started then illuminate
continuously:
Fault in the system resulting in a
loss of engine power.
Seek the assistance of a
workshop as soon as possible.
3. Y and A flash:
Fault in the system.
Vehicle speed will be limited to
12 mph after switching the engine
off and on again.
Seek the assistance of a
workshop as soon as possible.
Illumination of control indicators Y
and A may be accompanied by a
warning chime.
Warning chimes 3 102.Refilling AdBlueCaution
Only use AdBlue that complies
with European standards
DIN 70 070 and ISO 22241-1.
Do not use additives.
Do not dilute AdBlue.
Otherwise the selective catalytic
reduction system could be
damaged.