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124Climate controlAir vents
Adjustable air vents Centre air vents in the instrument
panel
Direct the flow of air by tilting and
swivelling the slats.
To close the vent, swivel the slats
inwards.
Outer air vents in the instrument
panel
Direct the flow of air by tilting and
swivelling the slats.
To close the vent, swivel the slats
outwards.
Centre air vent on top of the
instrument panel
Close air flow by turning the thumb
wheel to the front.
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Climate control125Air vent in the glovebox
The air vent can be opened or closedby turning.
At least two air vents must be open
while cooling is on.
9 Warning
Do not attach any objects to the
slats of the air vents. Risk of
damage and injury in case of an
accident.
Fixed air vents
Additional air vents are located
beneath the windscreen and door windows and in the foot wells.Maintenance
Air intake
The air intake in front of the
windscreen in the engine
compartment must be kept clear to
allow air intake. Remove any leaves,
dirt or snow.
Cabin air filter
Change filter regulary for maximum
effect.
More frequent passenger
compartment air filter replacement
may be needed, if you drive in areas
with heavy traffic, poor air quality,
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126Climate controlareas with high dust levels or which
are sensitive to environmental
allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced air flow, windows
fogging up, or odors.
Your dealer can help to determine
when it is the right time to replace the
filter.
Air conditioning regularoperation
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
● cabin air filter check
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134Driving and operating● The engine exhaust temperatureis not too high, e.g. after driving
with high engine load.
● The ambient temperature is above -5 °C.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the diesel particle filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Otherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may inhibit an Autostop. See
Climate control chapter for more
details 3 116.
If an autostop is temporarily not
available, D flashes green 3 91.
New vehicle running-in 3 128.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 transmissionConventional restart
All engines have conventional restart.
Depress the clutch pedal without
depressing the brake pedal to restart
the engine.
On engines with late restart a
conventional restart is only possible
without depressed brake pedal.Late restart
All engines have late restart in
addition to conventional restart. Late
restart is only active on gradients up to 5%.
● Depress the brake pedal.
● Depress the clutch pedal.
● Select first gear.
● Release the brake pedal to restart the engine.
Vehicles with automatic transmission
Release the brake pedal or move
selector lever out of D into N or P to
restart the engine.
Restart 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:
● The stop-start system is manually deactivated.
● The bonnet is opened.
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Driving and operating135● The driver's seat belt isunfastened and the driver's door
is opened.
● The engine temperature is too low.
● The charging level of the vehicle battery is below a defined level.
● The brake vacuum is not sufficient.
● The vehicle is driven at least at walking speed.
● The climate control system requests an engine start.
● The air conditioning is manually switched on.
If the bonnet is not fully closed, a warning message is displayed in the
Driver Information Centre.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop during the restart might be noticeable.Parking9 Warning
● Do not park the vehicle on an
easily ignitable surface. The
high temperature of the
exhaust system could ignite the
surface.
● Always apply the parking brake. Activate the manual
parking brake without pressing the release button. Apply as
firmly as possible on a downhill slope or uphill slope. Depress
brake pedal at the same time to
reduce operating force.
● Switch off the engine.
● If the vehicle is on a level surface or uphill slope, engage
first gear or set the selector
lever to position P before
removing the ignition key or
switching off ignition on
vehicles with power button. On an uphill slope, turn the front
wheels away from the kerb.
If the vehicle is on a downhill
slope, engage reverse gear or
set the selector lever to position
P before removing the ignition
key or switching off ignition on
vehicles with power button.
Turn the front wheels towards
the kerb.
● Close the windows.
● Remove the ignition key from the ignition switch or switch off
ignition on vehicles with power
button. Turn the steering wheel until the steering wheel lock is
felt to engage.
● Lock the vehicle.
● Activate the anti-theft alarm system.
● The engine cooling fans may run
after the engine has been
switched off 3 177.
Caution
After running at high engine
speeds or with high engine loads,
operate the engine briefly at a low
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192Vehicle careNo.Circuit1Fan climate control system2–3Body fuse box4–5Instrument panel fuse box6Engine cooling unit7Body control module8Engine control fuel pump9Engine controlNo.Circuit10Engine control11Engine control12Engine cooling unit13Body control module14Intelligent battery sensor15–16Front fog light17–18High beam right19High beam left20Engine control fuel pump21Starter22–23Starter24Trailer hitch25Instrument panel fuse box26Transmission control moduleNo.Circuit27Body control module28Engine control module29Front wiper30Body control module
After having changed defective fuses,
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunction may occur.
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Vehicle care193Instrument panel fuse boxFuse box on the left side of the
instrument panel
In left-hand drive vehicles, the fuse
box is behind a cover in the
instrument panel. Disengage cover at
the side and remove.
In right-hand drive vehicles, the fuse
box is located behind a cover in the
glovebox. Open the glovebox and
remove the cover.
No.Circuit1Interior mirror / Exhaust
system / Electric power
steering / Clutch sensor / LPG /
Exterior mirror adjustment /
Inductive charging2–3Trailer Hitch4Horn5Windscreen washer pump front/
rear6Windscreen washer pump front/ rear7Heated steering wheel8Rear wiper9–10Central locking system11Central locking system12Instrument cluster13Climate control system / USB
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194Vehicle careNo.Circuit14OnStar15Instrument cluster / Climate
control system16Brake / Starter / Retained power off17Instrument cluster18Advanced parking assist19Top column module / Trailer
control module20–21Anti-theft alarm system / Start button22Rain sensor / Camera23Door module24Advanced parking assist /
Camera / Infotainment25Airbag26Top column module27Anti-theft alarm systemNo.Circuit28–29Infotainment30–31Infotainment32Power outlet front33–34Heated exterior mirrors / Door
module35Instrument cluster / Light
switch / Advanced parking
assist/ Transmission control
module36Courtesy lights / Sunvisor
lights / Glovebox lightFuse box on the right side of the
instrument panel
In left-hand drive vehicles, the fuse
box is located behind a cover in the
glovebox. Open the glovebox and
remove the cover. Remove the
bracket.