2016 MERCEDES-BENZ CLA air condition

The seat belt should: R
fit snugly across your body R
be routed across the middle of your
shoulder R
be routed in your pelvic area across the
hip joints X
Before starting off, adjust the rear-view mir-
ror and the exterior mirrors ( Y
page 107) in
such a way that you have a good view of
road and traffic conditions. X
Vehicles with a memory function: save
the seat and exterior mirror settings
( Y
page 110).
Seats
Important safety notes
G WARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The seats can still be adjusted when there is
no SmartKey in the ignition lock.
G WARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Observe the safety notes on "Air bags"
( Y
page 48) and "Children in the vehicle"
( Y
page 58).
G WARNING
If the driver's seat is not engaged, it could
move unexpectedly while the vehicle is in
motion. This could cause you to lose control of
the vehicle. There is a risk of an accident. Always make sure that the driver's seat is
engaged before starting the vehicle.
G WARNING
You could lose control of your vehicle if you do
the following while driving: R
adjust the driver's seat, head restraint,
steering wheel or mirrors R
fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
G WARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
! To avoid damage to the seats and the seat
heating, observe the following information: R
keep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible. R
if the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats. R
clean the seat covers as recommended;
see the "Interior care" section. R
do not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible. R
when the seat heating is in operation, do
not cover the seats with insulating mate- Seats 101
Seats, steering wheel and mirrors Z

Useful information
i This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
i Read the information on qualified special-
ist workshops ( Y
page 25).
Overview of climate control systems
General notesObserve the settings recommended on the
following pages. The windows could other-
wise fog up.
To prevent the windows from fogging up: R
switch off climate control only briefly R
switch on air-recirculation mode only
briefly R
switch on the cooling with air dehumidifi-
cation function R
switch on the defrost windshield function
briefly, if required
The air-conditioning system/dual-zone auto-
matic climate control regulates the tempera-
ture and the humidity of the vehicle interior
and filters out undesirable substances from
the air.
The air-conditioning system/dual-zone auto-
matic climate control can only be operated
when the engine is running. Optimum opera-
tion is only achieved with the side windows
and panorama roof with power tilt/sliding
panel closed.
If you start the engine using your smartphone,
the last selected climate control setting is
reactivated ( Y
page 169). The residual heat function can only be acti-
vated or deactivated with the ignition
switched off ( Y
page 141).
Always keep the ventilation flaps behind the
side trim panel in the cargo compartment
clear ( Y
page 123). Otherwise the vehicle will
not be ventilated correctly.
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature ( Y
page 89). This
will speed up the cooling process and the
desired interior temperature will be
reached more quickly.
i The integrated filter filters out most par-
ticles of dust and soot and completely fil-
ters out pollen. It also reduces gaseous pol-
lutants and odors. A clogged filter reduces
the amount of air supplied to the vehicle
interior. For this reason, you should always
observe the interval for replacing the filter,
which is specified in the Maintenance
Booklet. As it depends on environmental
conditions, e.g. heavy air pollution, the
interval may be shorter than stated in t he
Main tenance Booklet.
i It is possible that under certain circum-
stances the residual heat function may be
activated automatically an hour after the
SmartKey has been removed in order to dry
the automatic climate control. The vehicle
is then ventilated for 30 minutes.130
Overview of climate control systems
Climate control

Air-conditioning system cont rol panel
US A only
C
Sets th e temperature ( Y
page 137)D
Defrost s th e windshield ( Y
page 139)

R
Use the residual heat function if you want to
heat or ventilate the vehicle interior when
the ignition is switched off. The residual
heat function can only be activated or deac-
tivated with the ignition switched off. R
If you change the settings of the climate
control system, the climate status display
appears for approximately three seconds
at the bottom of the screen in the Audio/
COMAND display (see separate operating
instructions). You will see the current set-
tings of the various climate control func-
tions.
DYNAMIC SELECT button (except
Mercedes-AMG vehicles) You can choose between various drive pro-
grams with the DYNAMIC SELECT button
( Y
page 155).
If you have selected drive program E :R
when heating, the electrical heater booster
is deactivated and in the warming-up phase
heat output is reduced R
the rear window defroster running time is
reduced
Depending on the configuration, the climate
settings can also be influenced in drive pro-
gram I .
If you have selected drive program C or S , the
climate settings are not affected.
ECO start/stop function
During automatic engine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO
button ( Y
page 153). Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could fog up.
Therefore, switch off climate control only
briefly
Air-conditioning system X
Turn the SmartKey to position 2 in the igni-
tion lock ( Y
page 147). X
To switch on: turn control

change the temperature setting in small
increments. Start at 72 ‡ (22 †).
Setting the air distribution
Air-conditioning system Air distribution settings
a
Directs air through the defroster vents

Defrosting th e windows
Windows fogged up on th e insideAir-conditionin g syste mX
Activat e th e Z "Coolin g wit h air dehu-
midification " function .X
If th e windows continue to fo g up, activat e
th e d "Windshield defrosting" function .
i You should only selec t this setting until
th e windshield is clear again .
Dual-zone automati c climat e contro lX
Activat e th e Z "Coolin g wit h air dehu-
midification " function .X
Activat e automatic mode X .X
If th e windows continue to fo g up, activat e
th e d "Windshield defrosting" function .
i You should only selec t this setting until
th e windshield is clear again .
Windows fogged up on th e outsid eX
Activat e th e windshield wipers .X
Se t th e air distribution to

driven at lower engine speeds and the
wheels being less likely to spin. R
gliding mode is activated automatically
when engine-internal conditions are fulfil-
led and the accelerator is not depressed. At
the same time the transmission’s clutch
opens and the vehicle rolls freely using its
kinetic energy. As a result great distances
can be completed without the engine brake
and fuel consumption reduced.
Mercedes-AMG vehicles Drive program I (Individual)
In drive program I the following properties of
the drive program can be selected: R
the drive (engine management) R
the transmission management R
the suspension (vehicles with AMG RIDE
CONTROL) R
ESP ®
Information about the configuration of drive
program I with COMAND or Audio 20 can be
found in the Digital Operator's Manual.
Drive program C (Comfort)
Drive program C is characterized by the fol-
lowing: R
the vehicle delivers comfortable, economi-
cal handling characteristics. R
the vehicle pulling away more gently in
forward and reverse gears, unless the
accelerator pedal is depressed fully. R
the vehicle having improved driving stabil-
ity, for example on slippery road surfaces. R
optimal fuel consumption resulting from
the automatic transmission shifting up
sooner. The vehicle is driven in the low
engine speed range and the wheels are less
likely to spin. R
gliding mode is available. R
the ECO start/stop function is available. Drive program S (Sport)
Drive program S is characterized by the fol-
lowing: R
the vehicle exhibits sporty driving charac-
teristics. R
the automatic transmission shifting up
later. the fuel consumption possibly being
higher as a result of the later automatic
transmission shift points. R
the suspension exhibits stiff springing and
damping settings (vehicles with AIR RIDE
CONTROL). R
gliding mode is not available. R
the ECO start/stop function is not availa-
ble.
Drive program S+ (Sport Plus)
Drive program S+ is characterized by the fol-
lowing: R
the vehicle exhibits particularly sporty driv-
ing characteristics. R
the automatic transmission shifting up
later. R
the fuel consumption possibly being higher
as a result of the later automatic transmis-
sion shift points. R
the suspension exhibits particularly stiff
springing and damping settings (vehicles
with AMG adaptive sport suspension sys-
tem). R
gliding mode is not available. R
the ECO start/stop function is not availa-
ble.
Drive program RACE (vehicles with AMG
RIDE CONTROL)
The RACE drive program is characteriz ed by
the following: R
the vehicle exhibits driving characteristics
suitable for the racetrack. R
all vehicle systems are set for maximum
sportiness. R
the automatic transmission shifting up
later.Automatic transmission 163
Driving and parking Z

Braking
Important safety notes
G WARNING
If you shift down on a slippery road surface in
an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
Downhill gradients
! On long and steep gradients, you must
reduce the load on the brakes by shifting to
a lower gear in good time. This allows you to
take advantage of the engine's braking
effect. For this, you need to have selected
manual drive program M . This helps you to
avoid overheating the brakes and wearing
them out excessively.
When you take advantage of the engine's
braking effect, a drive wheel may not turn
for some time, e.g. on a slippery road sur-
face. This could cause damage to the drive
train. This type of damage is not covered by
the Mercedes-Benz warranty.
Briefly depressing the accelerator pedal on
downhill gradients while the manual drive
program M is temporarily activated: the auto-
matic transmission may switch to the last
active automatic drive program E or S . The
automatic transmission may shift to a higher
gear. This can reduce the engine's braking
effect.
Heavy and light loads
G WARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This
increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident. Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
! Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately.
Drive on for a short while. This allows the air-
flow to cool the brakes more quickly.
Wet roads If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehi-
cle washed, brake firmly while paying atten-
tion to the traffic conditions. This will warm up
the brake discs, thereby drying them more
quickly and protecting them against corro-
sion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance. R
In order to prevent any salt build-up, apply
the brakes occasionally while paying atten-
tion to the traffic conditions. R
Carefully depress the brake pedal and the
beginning and end of a journey. R
Maintain a greater distance to the vehicle
ahead. Driving tips 175
Driving an d parking Z