Heating and ventilation
Heating, manual air conditioning system, Climatronic
Introduction
This chapter contains information on the following subjects:
Heating and manual air conditioning
95
Climatronic (automatic air conditioning)
96
Climatronic - automatic operation
97
Recirculated air mode
97
Air outlet vents
98
The heating and air conditioning systems ventilate and heat the vehicle interi-
or. The air conditioning system 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 heating and air conditioning systems only operate when the ignition is
switched on.
The cooling system operates only if the following conditions are met. The cooling system is switched on.
The engine is running.
The outside temperature is above approximately +2 °C.
The blower is switched on.
If the cooling system is switched on, the temperature and air humidity drops in the vehicle. The cooling system prevents the windows from misting up during
winter months.
It is possible to briefly activate re-circulated air mode to enhance the cooling
effect » page 97 .
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 indoor temperature and the outdoor air temper-
ature should not be greater than about 5 ° C.
▶ The cooling system is to be turned off about 10 minutes before the end of
the journey.
▶ Once a year, have the manual air conditioner or Climatronic system disinfec-
ted by a specialist company.WARNING■ For your own safety and that of other road users, ensure that all the win-
dows are free of ice, snow and misting. The blower should always be on to
prevent the windows from misting up.■
Under certain circumstances, air at a temperature of about 5 °C can flow
out of the vents when the cooling system is switched on.
CAUTION
■ The air inlet in front of the windscreen must be free (e.g. of ice, snow or
leaves) to ensure that the heating and cooling system operates properly.■
After switching on the cooling system 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. 116
Heating controls
95Heating and ventilation
Fig. 117
Control elements of the manual air conditioning
Read and observe
and on page 95 first.
Individual functions can be set or switched on by turning the dial or pressing the corresponding button. When the function is activated, a warning light illu-
minates in the button.
Functions of the individual control elements » Fig. 116 and » Fig. 117
Set the temperature
▶ Lower the temperature
▶ Increase the temperature
Set the fan speed (level 0: fan off, level 4: high speed)
Set the direction of the air outlet » page 98
▶ Air flow to the windows
▶ Air flow to the upper body
▶ Air flow to the footwell
▶ Airflow to the windows and the footwell
Switch recirculation on/off » page 97
Switch the cooling system on/off
Information on cooling system
The cooling system operates only if the following conditions are met
» page 95 .
The warning light in the
» Fig. 117 button lights up after activation, even if
some of the conditions for the function of the cooling system have not been
met. The operational readiness of the cooling system is indicated by the indi-
cator light in the button lighting up.
If recirculated air mode is turned to position when the blower is on, the
cooling system is switched on. The cooling system is switched off again by
turning the air distribution control out of the position .
ABCIf recirculated air mode is outside position
when the recirculating air mode
is on, the cooling system is switched on.
Note
During operation of the manual air conditioning, an increase in engine idle
speed may occur under certain circumstances in order to ensure sufficient
heating comfort.
Climatronic (automatic air conditioning)
Fig. 118
Controls the Climatronic
Read and observe
and on page 95 first.
Climatronic in automatic mode ensures the best-possible setting of the tem-
perature of the outflowing air, the blower stage and air distribution.
Individual functions can be set or switched on by turning the dial or pressing the corresponding button. When this function is switched on, the correspond-
ing icon appears in the display.
Functions of the various controls and display » Fig. 118
Set the temperature
▶ Lower the temperature
▶ Increase the temperature
Selected temperature
Degrees Celsius or Fahrenheit
Automatic operation of the air conditioning system is switched on
Intensive windshield defroster switched on
Direction of air flow
Recirculated air mode activated
Cooling system activated
1234567896Operation
Set blower speed
Set the fan speed (the set fan speed is indicated by the corresponding
number of segments in the display)
▶ Rotate left: reduce speed until you switch off the Climatronic
▶ Rotate right: increase speed
Interior temperature sensor Switching the intensive windshield defroster on/off - when this function
is switched on, the warning light illuminates in the button
Switching automatic mode on
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 97
Switch the cooling system on/off
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.
Set the temperature
The temperature can be set between +16 °C and +29 °C. The temperature is
regulated automatically within this range.
If illuminates in the display, then the Climatronic works with
maximum cool-
ing (temperature setting below +16 °C).
If illuminates in the display, then the Climatronic works with
maximum heat-
ing (temperature setting above +29 °C).
There is no automatic temperature control in the two end positions.
Switching between Celsius and Fahrenheit
Press buttons and
simultaneously and hold for about 2 seconds.
The desired temperature unit (item 3
» Fig. 118 ) appears on the display.
WARNING■
Do not switch off the Climatronic system for longer than necessary.■Switch on the Climatronic system as soon as the windows mist up.
CAUTION
Do not cover the interior temperature sensor 11 » Fig. 118 as this could impair
the functioning of the Climatronic.91011Note■ As soon as the windscreen mists up, press the symbol button . Press the
button once the windscreen has demisted.■
During operation of the Climatronic, under certain circumstances an increase
in engine idle speed can occur in order to ensure adequate heating comfort.
Climatronic - automatic operation
Read and observe
and on page 95 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. 118
on page 96 ).
Automatic mode can be switched off by pressing any of the air distribution
buttons or by increasing/decreasing the blower speed. The temperature is
nevertheless regulated.
Recirculated air mode
Read and observe
and on page 95 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.
Switching on/off
›
Press the button.
Heater
Recirculated air mode is switched off automatically if the following conditions
are met.
The blower is switched on.
The airflow adjuster is in position .
97Heating and ventilation
Individually controlled air conditioning
Recirculated air mode is switched on automatically if the following conditions
are met.
The blower is switched on.
The airflow adjuster is outside position
.
The temperature controller is turned to the left.
Recirculated air mode is switched off automatically if the following conditions
are met.
The blower is switched on.
The airflow adjuster is in position
.
Climatronic
Depending on the moisture conditions in the vehicle interior, the air recircula-
tion may shut-down automatically .WARNINGThe recirculation system cannot be switched on for a longer period of time,
because there is no supply of fresh air from the outside. “Stale air” may re-
sult in fatigue in the driver and occupants, reduce attention levels and also
cause the windows to mist up. The risk of having an accident increases.
Switch off recirculated air mode as soon as the windows start to mist up.
CAUTION
We recommend not smoking in the vehicle when the recirculating air operation
is switched on. The smoke sucked from inside the vehicle is deposited on the
evaporator of the air conditioner. This produces a permanent odour when the
air conditioning system is operating which can only be eliminated through con-
siderable effort and expense (replacement of compressor).Air outlet ventsFig. 119
Air outlet vents
Read and observe
and on page 95 first.
The direction of airflow can be adjusted using the air outlet vents 3, 4
» Fig. 119 , the outlets can be opened and closed individually.
Changing the direction of air flow
›
To change the height of the air flow, turn the horizontal fins upward or
downward using the movable adjuster
A
» Fig. 119 .
›
To adjust the lateral direction of the air flow, turn the vertical fins with the
movable adjuster
A
to the left or to the right.
Opening
›
Turn the regulator
B
upwards » Fig. 119.
›
Turn the regulator
B
to the right.
Closing
›
Turn the regulator
B
downwards » Fig. 119.
›
Turn the regulator
B
to the left.
98Operation
An overview of the available settings for adjusting the direction of the air
outletSet the direction of the air outletActive air outlet vents » Fig. 1191. 2 . 41. 2 . 4 . 53 . 44 . 5
CAUTION
To ensure that the heating, the manual air conditioning and the Climatronic
systems work properly, do not block up the air outlet vents with any objects.99Heating and ventilation
OperationFig. 123
Display
Vehicles with manual transmission
The motor is automatically switched off as soon as the vehicle comes to a halt,
the shift lever is shifted to the neutral position and the clutch pedal is re-
leased.
The motor is automatically started as soon as the clutch pedal is depressed.
Vehicles with automatic transmission
The motor is automatically switched off as soon as the vehicle comes to a
standstill and the brake pedal is actuated.
The motor is automatically started as soon as the brake pedal is released.
Conditions for the system function
The following conditions are required for the correct system function.
The driver's door is closed.
The driver has fastened the seat belt.
The bonnet is closed.
The driving speed exceeded 4 km/h after the last stop.
No trailer is coupled.
System status
The system status is shown on the display » Fig. 123 when stopped.
The engine is automatically switched off; when driving off again, the en-
gine is started automatically.
The motor is not automatically switched off.
Reasons for the engine running
Running the engine can be essential when stopped, for the following reasons. ▶ 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 capacity (high fan speed, big difference be-
tween the desired and actual indoor temperature).
When the engine is shut-down automatically and the system detects that the
engine is required such as when the brake pedal is pressed repeatedly then
the system automatically starts the engine.
Infotainment display
Information about the current status of the system can be displayed in the In-
fotainment display » Owner´s Manual Infotainment , chapter CAR - Vehicle set-
tings (CAR button) .
Note
■
If the vehicle remains outdoors for a long time in minus temperatures or in
direct sunlight, it can take several hours until the internal temperature of the
vehicle battery reaches a suitable temperature for proper operation of the sys-
tem.■
If the driver's seat belt is removed for more than approx. 30 seconds or the
driver's door is opened during stop mode, the engine will have to be started
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 shutdown
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.
105Starting-off and driving
Manually deactivating/activatingFig. 124
Button for the START-STOP sys-
tem
Deactivate/activate
›
Press the button
» Fig. 124 .
When system is deactivated, the warning light in the button illuminates.
If the system is deactivated, then it is automatically activated again after
switching the ignition off and on.
Note
If the system is automatically deactivated when the engine is turned off, then
the automatic start process takes place.
Information messages
The warning symbols are shown in the instrument cluster display.
Start the engine manually!START MANUALLY
If for example the driver's seat belt is stored, the engine must be started man-
ually.
On vehicles with the starter button the ignition is turned off by the first press
of the start button, only after pressing for the second time is the start process
initiated.
Error: start-stop systemSTART STOP ERROR
A system error is present. Seek help from a specialist garage.
Brakes and parking
Introduction
This chapter contains information on the following subjects:
Information for braking
106
Handbrake
107
Parking
108WARNING■ Greater physical effort is required for braking when the engine is switch-
ed off – risk of accident.■
The clutch pedal must be depressed 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!
■
When leaving the vehicle never leave persons leave unattended in the
vehicle who could release the brake. The vehicle might then move off – risk
of accident.
■
Observe the recommendations on the new brake pads » page 112.
CAUTION
Never let the brakes slip with light pressure on the pedal if braking is not nec-
essary. This causes the brakes to overheat and can also result in a longer brak-
ing distance and excessive wear.
Information for braking
Read and observe
and on page 106 first.
Wear-and-tear
The wear of the brake pads is dependent on the operating conditions and driv-
ing style.
The brake pads wear more quickly if a lot of journeys are completed in towns
and over short distances or if a very sporty style of driving is adopted.
Under these severe conditions , the thickness of the brake pads must also be
checked by a specialist garage between services.
Wet roads or road salt
The performance of the brakes can be delayed as the brake discs and brake
pads may be moist or have a coating of ice or layer of salt on them in winter.
The brakes are cleaned and dried by applying the brakes several times »
.
106Driving
Drive especially carefully for the first 500 km or so.
New brake pads
New brake pads have to first “grind in” because these do not initially have the
best possible braking effect.
Drive especially carefully for the first 200 km or so.
Tips for economical driving
To achieve the lowest possible fuel consumption, the following instructions
must be observed.
Looking ahead when driving
Avoid unnecessary acceleration and braking.
Change gear in an energy saving and timely manner
Observe the recommended gear » page 39.
Avoid full throttle and high speeds
Fuel consumption can be reduced by half if only three-quarters of the possible
top speed of your vehicle is used.
Reducing idling
If the vehicle is fitted with the START - STOP system there is an automatic re-
duction of the idling. If the engine is stopped on vehicles without START-STOP
system, such as when waiting in a traffic jam, the fuel economy is already
greater after 30 - 40 s than the fuel quantity which is required for engine re-
start.
Avoid short distances
When driving a short distance of less than about 4 km, the engine cannot
reach its operating temperature. As long as the engine has not reached oper-
ating temperature, the fuel consumption is significantly higher than with the
engine hot.
Pay attention to the correct tyre inflation pressure being maintained
Further information » page 161.
Avoid unnecessary ballast
Per 100 kg of weight, consumption increases by about 0.3 l/100 km. At a speed
of 100 - 120 km/h, a vehicle fitted with a roof rack cross member without a load
will use about 10 % more fuel than normal due to the increased aerodynamic
drag.
Saving electricity
Only turn on electrical consumers (e.g. seat, window and mirror heating, etc.)
for as long as necessary.
Use the cooling system economically
The air conditioning system compressor uses power from the engine when in
cooling mode, which will affect the fuel consumption.
It recommended to open the windows or the doors of a vehicle for which the
interior has been strongly heated through the effect of direct sunlight in order
to allow the heated air to escape.
The cooling system should not be switched on if the windows are open.
DriveGreen function
Fig. 130
Shown in the infotainment dis-
play
The DriveGreen function (hereinafter referred to as "DriveGreen") evaluates
the driving efficiency based on information relating to the driving style. Useful
tips for reducing fuel consumption are also offered.
DriveGreen can be displayed on the Infotainment as follows.
›
Press the button in the Infotainment and then in the display the function
keys one after the other
DriveGreen
.
A
driving liquid display
With the driving is liquid the display is near the green dot. When accelerating
or braking, the indicator moves down or up.
B
“Green leaf”
The leaf margin shown in green shows with a few seconds, the current drive
efficiency. When driving economically there are several green layers on the
edge of the leaf. If you are not driving economically, no green colour appears
and the leaf may disappear completely.
112Driving