Page 135 of 398

CLIMATE
}}
* Option/accessory, for more information, see Introduction.133
Air conditioning
The air conditioning function cools and dehu- midifies the air in the passenger compartment.
When the indicator light in the button is on, the air condition-ing is controlled automatically.This cools/heats and dehu-midifies the incoming air. Whenthe indicator light in the buttonis off, the air conditioning is
disengaged. Other functions are still controlledautomatically. When maximum defroster (p. 133)is selected, the air conditioning system is set formaximum blower speed and dehumidifies thecabin as quickly as possible.
Related information
• Climate – general information (p. 126)
• Automatic climate control (p. 132)
Max. defroster and electrically heated windshield
*
The heated windshield and max. defroster func- tions are used to clear the windshield and frontside windows of condensation and ice asquickly as possible.
The selected settings are shown in the center console display
Electrical heating *
Max. defroster
Models without an electrically heated windshield
• Press the button once to start defrosting/de- icing the windshield and front side windows.The indicator light (2) in the defroster buttonilluminates when the function is active.
• Press the button twice to switch off thedefroster (the indicator light will switch off).
Models with an electrically heated windshield *
• If this feature is switched off, press the but- ton once to start heating the windshield 2
.
Symbol (1) will illuminate in the center con- sole display.
• Press the button twice to start both thedefroster and the windshield heating. Sym-bols (1) and (2) will illuminate in the centerconsole display.
• If these features are on, press the button toswitch them off. The symbols will no longerbe displayed.
2
If a "C" appears in the rear-view mirror when the button is pressed, the compass * has to be recalibrated, see Digital compass * (p. 107).
Page 137 of 398

CLIMATE
135
Air distribution – recirculation Recirculation can be used to shut out exhaust fumes, smoke, etc., from the passenger com-partment.
The air in the passenger com- partment is then recirculated,i.e., no air from outside the caris taken into the car when thisfunction is activated. The indi-cator light in the button will illu-minate when recirculation is
selected. If the air in the car recirculates for too long, there is a risk of condensation forming on the insidesof the windows, especially in winter.
TimerThe timer function minimizes the risk of fogging, or stale air when the recirculation function isselected by automatically switching off the func-tion after a certain length of time, depending onthe ambient temperature. Activate/deactivate the function under
Climate settingsRecirculation timer. See My Car – introduction
(p. 77) for a description of the menu system.
NOTE
When Defroster is selected, recirculation is always deactivated.
Related information
• Climate – general information (p. 126)
• Air distribution – general (p. 129)
• Air distribution – function (p. 134)
• Air distribution – table (p. 136)
Page 261 of 398

STARTING AND DRIVING
* Option/accessory, for more information, see Introduction.259
•
Start/Stop – Hill Start Assist (HSA) (p. 257)
• Start/Stop – symbols and messages (p. 261)
Start/Stop – Auto-stop exceptions
In certain situations or conditions, the engine may not auto-stop
when the vehicle comes to a
standstill, such as if:
Condition/situation
The vehicle's speed has not reached a speed of approx. 6 mph (10 km/h) after the mostrecent auto-start or after the driver has startedthe engine.
The driver unbuckles his/her seat belt.
The main battery's charge is below the mini- mum level.
The engine has not reached its normal operat- ing temperature.
The ambient temperature is below approx. 25°F (-4°C) or above approx. 85°F (30°C).
The windshield's heating function * is activated.
The climate system cannot keep the desired settings in the passenger compartment; theblower will operate at high speed.
The vehicle is backing up.
The main battery's temperature is below freez- ing or too high.
The driver is turning the steering wheel hard.
Condition/situation
The road's incline is very steep.
A trailer's electrical system is connected to the vehicle.
The hood has been opened A
.
The transmission has not reached its normal operating temperature.
Atmospheric pressure is below a level equiva- lent to an altitude of approx. 4,900–8,200 ft(1500–2500 m) above sea level. The actualpressure is also affected by current weatherconditions.
The Adaptive Cruise Control's * Queue Assist
feature is activated.
The gear selector is in the SB
or " +/–" posi-
tion.
A Certain engines only
B Sport mode (where applicable)
Related information
• Start/Stop – introduction (p. 258)
• Start/Stop – function (p. 258)
• Start/Stop – settings (p. 260)
• Start/Stop – Auto-start exceptions (p. 260)
• Start/Stop – Hill Start Assist (HSA) (p. 257)
• Start/Stop – symbols and messages (p. 261)
Page 262 of 398

STARTING AND DRIVING
260
Start/Stop – Auto-start exceptions
In certain situations or conditions, the engine may auto-start even though the driver is still
pressing the brake pedal, such as if:
Condition/situation
Condensation forms on the windows.
The climate system cannot keep the desired settings in the passenger compartment.
Electrical current consumption is temporarily high or the main battery's charge is below theminimum level.
The brake pedal is pumped repeatedly.
The hood has been opened A
.
The driver unbuckles his/her seat belt while the gear selector is in the D or N positions.
The steering wheel is turned.
The gear selector is moved from D to SB
, R or
" +/– ".
The driver's door is opened with the gear selector in D – an audible signal and a text
message will inform the driver that Start/Stop is active.
A Certain engines only
B Sport mode (where applicable)
WARNING
Do not open the hood if the engine has auto- stopped. The engine could suddenly auto-start. Before opening the hood:
• Switch off the ignition using the
START/
STOP ENGINE button.
• Be aware that if the engine has been run- ning, components in the engine compart-ment will be very hot.
If the engine does not auto-start, this could be due to :
• The driver's seat belt is not fastened
• The gear selector is in
P and the driver's
door is opened
In these cases, the driver will have to restart the engine by pressing the START/STOP ENGINE
button.
Related information
• Start/Stop – introduction (p. 258)
• Start/Stop – function (p. 258)
• Start/Stop – settings (p. 260)
• Start/Stop – Auto-stop exceptions (p. 259)
• Start/Stop – Hill Start Assist (HSA) (p. 257)
• Start/Stop – symbols and messages (p. 261)
Start/Stop – settings
Settings for the Start/Stop function can be made in the MY CAR menu system.
Related information
• Start/Stop – introduction (p. 258)
• Start/Stop – function (p. 258)
• Start/Stop – Auto-stop exceptions (p. 259)
• Start/Stop – Auto-start exceptions (p. 260)
• Start/Stop – Hill Start Assist (HSA) (p. 257)
• Start/Stop – symbols and messages (p. 261)