Heating and ventilation
Heating, manual air conditioning system, Climatronic
Introduction
This chapter contains information on the following subjects:
Heating and manual air conditioning
82
Climatronic (automatic air conditioning)
83
Climatronic - automatic mode
84
Air distribution control
84
Air outlet vents
84
The heater heats and ventilates the vehicle interior. The air conditioning sys-
tem also cools and dehumidifies the vehicle interior.
The heating effect is dependent upon the coolant temperature, thus full heat
output only occurs when the engine has reached its operating temperature.
The cooling system works under the following conditions. The cooling system is switched on.
The engine is running.
The outside temperature is above 2 °C.
The blower is switched on.
When the cooling system is switched on, it prevents misting of the windscreen
and windows.
It is possible to boost the effectiveness of the cooling system by briefly acti-
vating the air recirculation system » page 84.
Health protection
To reduce health risks (e.g. common colds), the following instructions for the
use of the cooling system are to be observed. ▶ The difference between the outside temperature and the inside temperature
should not be greater than 5 °C.
▶ The cooling system should be turned off about 10 minutes before the end of
the journey.
▶ Once a year, a disinfection of the air conditioner is to be carried out by a spe-
cialist company.
WARNING■ The blower should always be on to prevent the windows from misting.
Otherwise there is a risk of accident.■
Under certain circumstances, air at a temperature of about 5 °C can flow
out of the vents when the cooling system is switched on.
Note
■ The air inlet in front of the windscreen must be free of e.g. ice, snow or
leaves to ensure that the heating and cooling system operates properly.■
After switching on the cooling Condensation from the evaporator of the air
conditioning may drip down and form a puddle below the vehicle. This is not a
leak!
■
If the coolant temperature is too high, the cooling system is switched off to
ensure that the engine cools down.
Heating and manual air conditioning
Fig. 101
Controls of the heating / air conditioning
Read and observe
on page 82 first.
Individual functions can be set or switched on by turning the dial or pressing the corresponding button » Fig. 101. When the function is switched on, the in-
dicator light in the button lights up.
Setting temperature
▶ Reduce the temperature /
Increase the temperature
Set the blower speed (Level 0: Fan off, level 4: high-speed)
Set the direction of the air outlet » page 84
Air flow to the windows
Air flow to the upper body
ABC82Using the system
Air flow in the footwell
Air flow to the windows and the footwell
Switch recirculation on/off » page 84
Switch the cooling system on/off
Information on the cooling system
After pressing the button
» Fig. 101 , the warning light on the button lights
up, even if not all the conditions for the cooling system have been met. The
cooling system starts to work as soon as the following conditions have been
met » page 82 .
Note
To ensure adequate thermal comfort, during operation of the manual air condi-
tioning there could be an increase in the engine idle speed in some circum-
stances.
Climatronic (automatic air conditioning)
Fig. 102
Controls the Climatronic
Read and observe
on page 82 first.
Individual functions can be set or switched on by turning the dial or pressing the corresponding button » Fig. 102.
Setting temperature
▶ Reduce the temperature /
Increase the temperature
Selected temperature
Degrees Celsius or Fahrenheit
Automatic operation of the air conditioning system is switched on
Intensive air flow to the windscreen switched on
Direction of air flow
123456Recirculated air mode activated
Cooling system activated
Set blower speed
Set the blower speed (the set blower speed is indicated by the corre-
sponding number of segments in the display)
▶ Turn to the left: Decrease speed / switch off Climatronic
▶ Turn to the right: Increase speed
Interior temperature sensor Switching on/off the intensive windscreen air flow - when this function
is switched on, the warning light illuminates in the button
Switching automatic mode on » page 84
Switching the airflow to the windows on and off
Switching the airflow to the upper body on and off
Switching the airflow to the footwell on and off
Switch recirculation on/off » page 84
Switch the cooling system on/off
When this function is switched on, the corresponding icon appears in the dis-
play.
After the cooling system is switched off, only the ventilation function remains
active, whereby the lowest temperature that can be reached is the outside
temperature.
Setting temperature
In the range between 16 °C to 29 °C, an automatic temperature control takes
place.
At a temperature setting below 16 ° C, lights up in the temperature display,
the Climatronic functions with maximum cooling performance .
At a temperature setting above 29 °C, lights up in the temperature display,
the Climatronic functions with maximum heating output.
Switching between Celsius and Fahrenheit
Press the and
buttons simultaneously and hold for about 2 s, the dis-
play shows the desired unit (position 3
» Fig. 102 ).
CAUTION
Do not cover the interior temperature sensor 11 » Fig. 102 - the function of the
Climatronic could be affected. 789101183Heating and ventilation
NoteIn order to ensure adequate thermal comfort, there may be an increase in en-
gine idle speed during operation of the Climatronic in some circumstances.
Climatronic - automatic mode
Read and observe
on page 82 first.
The automatic mode is used in order to maintain a constant temperature andto demist the windows in the interior of the car.
›
To switch on press the
button. The display shows
(pos.
4
» Fig. 102
on page 83 ).
›
To turn off , press any button for the air distribution or change the blower
speed. The temperature regulation is continued.
Air distribution control
Read and observe
on page 82 first.
The recirculation mode prevents contaminated outside air getting into the In-terior of the vehicle. In recirculated air mode air is sucked out of the interior of
the vehicle and then fed back into the interior.
›
To switch on/off , press the
symbol button repeatedly.
Heating and manual air conditioning system
If the air distribution control is set to position when the recirculation modes
is switched on, the recirculated-air mode is switched off. Recirculated air mode
can be switched on again from this setting by repeatedly pressing the symbol
button .
Climatronic
With the recirculated-air mode switched on the symbol appears in the dis-
play.
The symbol disappears from the display after turning off the air recircula-
tion.
If the humidity increases in the vehicle, an automatic shutdown of air recircula-
tion can occur.
WARNINGThe recirculation system cannot be switched on for a longer period of time,
because no fresh air is fed through from the outside. “Stale air” may result
in fatigue in the driver and occupants, reduce attention levels and also
cause the windows to mist up. As soon as windows mist up, turn on the re-
circulation system immediately - risk of accident!
CAUTION
We recommend not smoking in the vehicle when the recirculating air operation
is switched on. The smoke sucked from the interior is deposited on the evapo-
rator of the air conditioner. This produces a permanent odour when the air
conditioning system is operating which can only be eliminated through consid-
erable effort and expense (replacement of compressor).
Note
If recirculated air mode is switched on for around 15 minutes, the symbol
will begin to flash in the Climatronic display as a sign that the recirculated air
mode is switched on long-term. If the recirculated air mode is not switched off,
the symbol
flashes for around 5 minutes.
Air outlet vents
Fig. 103
Air outlet vents
Read and observe
on page 82 first.
The direction of airflow can be adjusted using the air outlet vents 3, 4
» Fig. 103 , the outlets can be opened and closed individually.
84Using the system
Requirements for the system to function correctly
The following conditions must be met for the system to function correctly.
The driver's door is closed.
The driver has fastened the seat belt.
The driving speed was higher than 4 km/h after the last stop.
No trailer or other accessory is connected to the trailer socket.
System status
The system status is shown in the display when the vehicle comes to a halt
» Fig. 106 .
The engine is switched off automatically; when moving off, the ignition
process will be initiated automatically.
The engine is not switched off automatically.
The engine does not shut down when the vehicle stops, if e.g. the following
applies.
▶ The engine temperature for the proper function of the system has not yet
been reached.
▶ The charge state of the vehicle battery is too low.
▶ The current consumption is too high.
▶ High air conditioning or heating output (high fan speed, big difference be-
tween the desired and actual interior temperature).
If the engine has shut down automatically but the system detects that the en- gine is required to run (e.g. if the brake pedal is pressed repeatedly) then the
system automatically starts up the engine.
More information about the current system status can be displayed on the In-
fotainment screen » Owner´s Manual - Infotainment .
If there is a system fault , the following message will appear in the display of
the instrument cluster. Seek help from a specialist garage.Note■ If the driver's seat belt is removed for more than 30 seconds or the driver's
door is opened after the engine has switched off automatically, the engine will
have to be restarted manually.■
No automatic engine shut-down takes place when a vehicle with automatic
transmission is moving at low speed (e.g. during a traffic jam) and remains sta-
tionary after pressing the brake pedal lightly. Automatic engine shut-down
takes place if you press the brake pedal down with more force.
■
For vehicles with automatic transmission there is no automatic engine shut-
down when the system detects a manoeuvring action due to a large steering
angle.
Manually deactivating/activating the system
Fig. 107
Button for the START-STOP sys-
tem
›
To deactivate/activate the system, press the
button » Fig. 107 .
When the system is deactivated, the symbol
in the button lights up.
If the system is deactivated, it will be reactivated automatically after the igni-
tion has been switched off and on.
Note
If the system is deactivated when the engine is turned off automatically, then
the automatic start process takes place.
Brakes and parking
Introduction
This chapter contains information on the following subjects:
Handbrake
90
Parking
91
89Starting-off and Driving
The wear and tear on the brake pads is dependent on the operating condi-
tions and driving style. In difficult conditions (e.g. urban, sporty driving), the
condition of the brakes should be checked between services by a specialist ga-
rage.
Brake response can be slower if the brakes are covered in moisture or, in win-
ter, have a layer of ice or salt on them . The brakes should be cleaned and
dried by applying the brakes many times over »
.
Corrosion on the brake discs and dirt on the brake pads can occur if the vehicle
has been parked for a long period and if you do not make much use of the
braking system. The brakes are cleaned by applying the brakes several times
over »
.
Before negotiating a long or steep gradient , reduce speed and shift down a
gear. As a result, the braking effect of the engine will be used, reducing the
load on the brakes. If, nevertheless, there is a need for additional braking, it
should be carried out at intervals.
Emergency braking warning - if it is necessary to brake hard, the system may
cause the brake lights to automatically flash, to alert the traffic behind.
New brake pads must first be “run in” because these do not initially have the
best possible braking effect. Drive especially carefully for the first 200 km or
so.
If the brake fluid level is too low, it can cause faults in the braking system ;
the warning light will light up in the instrument cluster
» page 30,
Braking
system . If the warning light does not light up, yet the stopping distance is per-
ceived to be longer than before, the driving style should be adapted in view of
the unknown cause of the problem, and braking kept to a minimum - seek the
help of a specialist garage without delay.
The brake booster increases the pressure generated with the brake pedal. The
brake booster only operates when the engine is running.
WARNING■ Greater physical effort is required for braking when the engine is switch-
ed off – risk of accident!■
The clutch pedal must be actuated when braking on a vehicle with man-
ual transmission, when the vehicle is in gear and at low revs. Otherwise,
the functionality of the brake system may be impaired – risk of accident!
WARNING (Continued)■ Do not depress the brake pedal if there is no requirement to slow down.
This causes the brakes to overheat and can also result in a longer braking
distance and excessive wear - risk of accident!■
Only brake for the purpose of drying and cleaning the brake discs if the
traffic conditions permit this. Do not place any other road users in jeopardy.
■
Recommendations for new brake pads should be followed.
■
When stopping and parking, the parking brake should always be applied
firmly, otherwise the vehicle could move off - risk of accident!
■
If a front spoiler, full wheel trim, etc. is mounted retrospectively, it must
be ensured that the air supply to the front wheel brakes is not reduced.
Otherwise, the front brakes could be in danger of overheating – risk of acci-
dent!
Handbrake
Fig. 108
Handbrake
Read and observe on page 90 first.
The handbrake secures the vehicle against unwanted movement when stop-
ping and parking.
Apply
›
Pull the handbrake lever firmly upwards.
Releasing
›
Pull the handbrake lever up slightly and at the same time push in the locking
button » Fig. 108 .
›
Move the lever right down while pressing the lock button.
The handbrake warning light
lights up when the handbrake is applied, pro-
vided the ignition is on.
90Driving
The following instructions must be observed if vehicle damage is to be avoided
when driving through water (e.g. flooded roads).›
Therefore, always determine the depth of the water before driving through
water. The water level must not go above the web of the lower beam
» Fig. 114 .
›
Drive at no more than walking pace, otherwise a wave may form in front of
the vehicle, which could cause the water to enter into the vehicle’s systems
(e.g. the air intake system for the engine).
›
Never stop in the water, do not reverse and do not switch the engine off.
CAUTION
■ If water gets into the vehicle’s systems (e.g. the air intake system for the en-
gine) it can cause serious damage to the vehicle!■
Oncoming vehicles can generate water waves which can exceed the permis-
sible water level for your vehicle.
■
Do not drive through salt water, as the salt can cause corrosion. A vehicle
coming into contact with salt water is to be thoroughly rinsed with fresh wa-
ter.
Assist systems
General information
Introduction
WARNING■
The assistance systems only serve to support the driver and do not re-
lieve the driver of the responsibility for driving the vehicle.■
The increased safety provision, as well as the increased occupant protec-
tion provided by the assistance systems must not tempt you to take risks -
risk of accident!
■
Adjust the speed and driving style to the current visibility, weather, road
and traffic conditions.
■
The assistance systems have physical and system-related limitations. For
this reason, the driver may experience some undesired or delayed system
responses in certain situations. You should therefore always be alert and
ready to intervene!
■
Only enable, disable or set the assistance systems so that you have the
car fully under control in every traffic situation - risk of accident!
Braking and stabilisation systems
Introduction
This chapter contains information on the following subjects:
Stability Control (ESC)
97
Anti-lock braking system (ABS)
97
Engine drag torque control (MSR)
97
Traction control (TCS)
97
Electronic Differential Lock (EDL)
98
Brake Assist (HBA)
98
Hill Start Assist (HHC)
98
Multi collision brake (MCB)
98
Trailer stabilization system (TSA)
98
The brake and stabilization systems are automatically activated each time the
ignition is switched on, unless otherwise indicated.
The error display is in Chapter » page 29, Warning lights .
96Driving
Parking assistance (ParkPilot)
Introduction
This chapter contains information on the following subjects:
Function
99
Display in the Infotainment display
100
Activation / deactivation
100
Automatic system activation when moving forward
101
Park Assist (hereinafter referred to as the system) draws attention via acoustic
signals or the Infotainment display when manoeuvring around obstacles in the
vicinity of the vehicle.
WARNING■ The general information relating to the use of assistance systems must
be observed » page 96, in section Introduction .■
Moving persons or objects may not be recognised by the system sensors.
■
Under certain circumstances, surfaces of certain objects and types of
clothing cannot reflect the system signals. There is a danger that such ob-
jects or people may not be recognised by the system sensors.
■
External noise sources may affect the signals of the system sensors.
There is a danger that obstacles may not be recognised by the system sen-
sors.
■
Before reversing, you should satisfy yourself that there are no small ob-
stacle, such as a rock, thin post etc., in front or behind your vehicle. Such
obstacles may not be recognised by the system sensors.
CAUTION
■ Keep the system sensors » Fig. 116 on page 99 clean, snow-and ice-free
and do not cover with any objects of any kind, otherwise the system function-
ing may be impaired.■
In adverse weather conditions (heavy rain, water vapour, very low or high
temperatures, etc.), the functioning of the system may be impaired - “incorrect
recognition of obstacles”.
■
Accessories additionally installed on the vehicle rear, such as bicycle carriers,
can impair the system function.
FunctionFig. 116
Installation location of the sensors on the left side of the vehicle:
front / rear
Fig. 117
Sampled areas and range of the
sensors
Read and observe and on page 99 first.
The system uses ultrasound waves to calculate the distance between the
bumper and an obstacle. The ultrasonic sensors are, depending on vehicle
equipment,, located in the back or in the front bumper » Fig. 116.
Depending on the equipment, the following system variants are possible
» Fig. 117 .
▶ Variant 1: warns of obstacles in the areas
C
,
D
.
▶ Variant 2: warns of obstacles in the areas
A
,
B
,
C
,
D
.
99Assist systems
Operation descriptionFig. 125
Cruise control system controls
Read and observe on page 103 first.
Overview of the CCS controls » Fig. 125AActivate CCS (control deactivated) Interrupt control (sprung position) Deactivate CCS (delete set speed)BTake control again a)
/ Increase speedCStart control / reduce speedDSwitching between CCS and speed limitera)
If no speed is set the current speed is adopted.
Once the controls are activated, the CCS maintains the vehicle at the set
speed; the warning light lights up in the instrument cluster.
Controls are automatically interrupted if any of the following occur.
▶ The brake pedal is operated.
▶ When one of the brake assist systems (e.g. ESC) intervenes.
▶ Through an airbag deployment.
▶ By pressing the
D
button.
WARNING■ Always deactivate the cruise control system after use to prevent the sys-
tem being switched on unintentionally.■
Control may only be resumed if the set speed is not too high for the cur-
rent traffic conditions.
Note■ During control, speed can be increased by pressing the accelerator pedal. Re-
leasing the accelerator pedal will cause the speed to drop again to the set
speed.■
By pressing the
D
button during the regulation, this is cancelled and the
speed limiter is activated.
Speed limiter
Introduction
This chapter contains information on the following subjects:
Operation
104
Description of operation
105
The speed limiter limits the maximum driving speed to the set speed limit.
This limit can only be exceeded by depressing the accelerator pedal fully.
The condition in which the Speed Limiter monitors a potential set speed limit
excess is referred to as regulation.
WARNINGThe general information relating to the use of assistance systems must be
observed » page 96, in section Introduction .
Operation
Fig. 126
MAXI DOT display: Examples of speed limiter status displays
104Driving