Climate control147● Air conditioning and automaticmode are automatically switchedon. The LED in the button A/C
illuminates, AUTO is shown in the
display.
● Temperature and air distribution are set automatically and the fan
runs at high speed.
● Switch on heated rear window è.
● Switch on heated windscreen 9 .
● To return to previous mode, press h again.
Note
If h is pressed while the engine is
running, an Autostop will be inhibited until h is pressed again.
If h is pressed while the engine is
in an Autostop, the engine will restart
automatically.
Heated rear window è 3 44.
Heated exterior mirrors m 3 40.
Heated windscreen 9 3 45.
Stop-start system 3 157.Deactivation of electronic climate
control system
Press s subsequently until the
electronic climate control system is
deactivated.
Parking heater The parking heater allows to heat the
vehicle's interior and to ventilate the
vehicle's interior with ambient air.
The operating status of the parking
heater is shown by an indicator with
an LED.
● LED illuminates: A timer has been set.
● LED flashes: The system is operating.
The LED is extinguished at the end of
the heating operation or when the
parking heater is stopped using the
remote control.
The parking heater can be
programmed using the Infotainment
system. Additionally, the parking
heater can be switched on and off
using a remote control.
Radio (Infotainment system) Press MENU to open the menu page.
Press Heating or Ventilation .
Press H or I to select the desired
timer. Confirm with OK.
Set the required time of the timer:
Press 7 or 8 to set the desired
value. Confirm with OK.
To set the timer, press H or I to
select OK on the display. Confirm with
OK .
148Climate controlMultimedia / Multimedia NaviPress d.
Press Temperature conditioning .
Activate Temperature conditioning by
pressing ON.
Press Settings .
Select Heating or Ventilation .
Press Time 1 or Time 2 to select the
desired timer.
Define the time of the selected timer.
Press 6 to save the settings and set
the timer.
Parking heater via remote control The parking heater can be switched
on using a remote control.
Press i.
Replacing the battery in the remote
control
If the indicator light of the remote
control turns yellow, the charging
status of the battery is weak. If the
indicator light does not illuminated
anymore, the battery is discharged
and has to be replaced.1. Remove the cap of the remote control by unscrewing it with a
coin and remove the battery
2. Replace battery with a battery of the same type. Pay attention to
the installation position.
3. Screw the cap in its place .
Climate control151Air conditioning regular
operation
In order to ensure continuously
efficient performance, cooling must
be operated for a few minutes once a month, irrespective of the weather
and time of year. Operation with
cooling is not possible when the
outside temperature is too low.
Service For optimal cooling performance, it is
recommended to annually check the
climate control system, starting
three years after initial vehicle
registration, including:
● functionality and pressure test
● heating functionality
● leakage check
● check of drive belts
● cleaning of condenser and evaporator drainage
● performance check
154Driving and operating0:ignition off: some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was
on previously1:ignition on power mode: ignition
is on, diesel engine is preheating, control indicators illuminate and
most electrical functions are
operable2:engine start: release key after
engine has been started
Steering wheel lock
Remove key from ignition switch and
turn steering wheel until it engages.
9 Danger
Never remove the key from
ignition switch during driving as
this will cause steering wheel lock.
Power button
The electronic key must be inside the
vehicle.
Engine start
Operate the clutch pedal (manual
transmission), the brake pedal and
press Start/Stop .Ignition on power mode without
starting the engine
Press Start/Stop without operating
clutch or brake pedal. Control
indicators illuminate and most
electrical functions are operable.Engine and ignition off
Press Start/Stop briefly in each mode
or when engine is running and vehicle
is stationary. Some functions remain
active until driver's door is opened,
provided the ignition was on
previously.Emergency shut off during driving
Press Start/Stop for about 3 seconds
3 155. Steering wheel locks as soon
as vehicle is stationary.
Steering wheel lock
The steering wheel lock activates
automatically when:
● The vehicle is stationary.
● The ignition has been switched off.
To release steering wheel lock, open
and close driver's door and switch the ignition on power mode or start the
engine directly.
156Driving and operatingTurn key briefly to position 2 and
release after engine has been
started.
Manual transmission: during an
Autostop, the engine can be started
by depressing the clutch pedal
3 157.
Automatic transmission: during an
Autostop, the engine can be started
by releasing the brake pedal 3 157.
Vehicles with power button● Manual transmission: operate clutch and brake pedal.
● Automatic transmission: operate brake pedal and move selector
lever to P or N.
● Do not operate accelerator pedal.
● Press Start/Stop button.
● Release button after starting procedure begins. Diesel engine
starts after control indicator z
for preheating extinguishes.
● Before restarting or to switch off the engine when vehicle is
stationary, press Start/Stop once
more briefly.
To start the engine during an
Autostop:
● Manual transmission: during an Autostop, the engine can be
started by depressing the clutch
pedal 3 157.
● Automatic transmission: during an Autostop, the engine can be
started by releasing the brake pedal 3 157.Emergency shut off during driving
If the engine needs to be switched offduring driving in case of emergency,
press Start/Stop for 5 seconds.9Danger
Switching off the engine during
driving may cause loss of power
support for brake and steering
systems. Assistance systems and
airbag systems are disabled.
Lighting and brake lights will
extinguish. Therefore power down the engine and ignition while
driving only when required in case of emergency.
158Driving and operatingWith touchscreen
The stop-start system can be
deactivated in the vehicle
personalisation 3 124.
If the system is deactivated during an Autostop, the engine restarts
immediately.
AutostopVehicles with manual transmission
An Autostop can be activated at a
standstill or at a speed below
20 km/h.
Activate an Autostop as follows: ● Depress the clutch pedal.
● Set the selector lever to neutral.
● Release the clutch pedal.
The engine will be switched off while the ignition stays on.Vehicles with automatic transmissionIf the vehicle is at a standstill with
depressed brake pedal or gear
selector in N, Autostop is activated
automatically.In case of vehicles with automatic
transmission of type B, an Autostop
can also be activated at a speed below 20 km/h.
The engine will be switched off while the ignition stays on.
Indication
An Autostop is indicated by control
indicator ñ.
During an Autostop, the heating and
brake performance will be
maintained.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled.
● The stop-start system is not manually deactivated.
● The driver's door is closed or the driver's seat belt is fastened.
● The sliding doors are closed
● The vehicle battery is sufficiently charged and in good condition.
● The engine is warmed up.
● The ambient temperature is between 0 °C and 35 °C.
● The engine coolant temperature is not too high.
● The engine exhaust temperature is not too high, e.g. after driving
with high engine load.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the exhaust filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Otherwise an Autostop will be
inhibited.
Note
The Autostop may be inhibited for
several hours after a battery
replacement or reconnection.
Driving and operating159Certain settings of the climate control
system may inhibit an Autostop.
Climate control 3 141.
Immediately after higher speed
driving an Autostop may be inhibited.
New vehicle running-in 3 153.
Vehicle battery discharge protection
To ensure reliable engine restarts, several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
Power saving measures
During an Autostop, several electrical
features such as auxiliary electric
heater or rear window heating are
disabled or switched to a power
saving mode. The fan speed of the
climate control system is reduced to
save power.
Restart of the engine by the driver
Vehicles with manual transmission
Depress the clutch pedal without
depressing the brake pedal to restart the engine.Vehicles with automatic transmission
Type A: The engine is restarted if
● the gear selector is in position D
with M activated or not and the
brake pedal is released
● the gear selector is in position N,
the brake pedal is released and
the gear selector is moved to
position D with M activated or not
● the gear selector is in position P,
the brake pedal is depressed and the gear selector is moved to
position R, N or D with M
activated or not
● the reverse gear is engaged
Type B: The engine is restarted if ● the gear selector is in position A
or M and the brake pedal is
released
● the gear selector is in position N,
the brake pedal is depressed and and the gear selector is moved toA or M
● the reverse gear is engagedRestart of the engine by the stop- start system
The selector lever must be in neutral to enable an automatic restart.
If one of the following conditions
occurs during an Autostop, the
engine will be restarted automatically by the stop-start system:
● depending on engine, vehicle speed exceeding 3 km/h or
25 km/h (manual transmission)
● vehicle speed exceeding 3 km/h (automatic transmission)
● stop-start system manually deactivated
● driver's door opened
● sliding door opened.
● driver's seat belt unfastened
● engine temperature too low
● charging level of vehicle battery below defined level
● brake vacuum not sufficient
● vehicle driven at least at walking speed
206Driving and operatingFor trailers with low driving stability
and caravan trailers, the use of an
oscillation damper is strongly
recommended.
If the trailer starts snaking, drive more slowly, do not attempt to correct the
steering and brake sharply if
necessary.
When driving downhill, drive in the
same gear as if driving uphill and
drive at a similar speed.
If the outside temperature exceeds
37 °C, reduce the load on the trailer
to protect the engine of the vehicle.
At high outside temperatures it is
recommended to leave the engine
running for one or two minutes after
having stopped the vehicle in order to
faciliate cooling.
Adjust tyre pressure to the value
specified for full load 3 271.
Towing a trailer increases the braking
distance of the vehicle. To limit the
heating of the brakes, it is
recommended to use the braking
effect of the engine.By driving uphill, the temperature of
the coolant is increased. To reduce
heating, drive at a reduced speed and
pay attention to the coolant
temperature. If the control indicator
2 of the engine coolant temperature
gauge illuminates, stop the vehicle
and switch off engine as soon as
possible.
Trailer towing Trailer loadsThe permissible trailer loads are
vehicle and engine-dependent
maximum values which must not be
exceeded. The actual trailer load is
the difference between the actual
gross weight of the trailer and the
actual coupling socket load with the
trailer coupled.
The permissible trailer loads are
specified in the vehicle documents. In general, they are valid for gradients
up to 12%.
The permissible trailer load applies
up to the specified incline and at sea
level. Since engine power decreases
as altitude increases due to the airbecoming thinner, therefore reducing
climbing ability, the permissible gross
train weight also decreases by 10%
for every 1000 metres of altitude. The gross train weight does not have to be
reduced when driving on roads with
slight inclines (less than 8%, e.g.
motorways).
The permissible gross train weight
must not be exceeded. This weight is
specified on the identification plate
3 264.
When distributing the loads in the trailer, heavy objects should be
placed as close as possible to the
axle.
Vertical coupling load
The vertical coupling load is the load
exerted by the trailer on the coupling
ball. It can be varied by changing the
weight distribution when loading the
trailer.
The maximum permissible vertical
coupling load is specified on the
towing equipment identification plate
and in the vehicle documents.