
The following systems may be installed in the vehicle
The heating and fresh air system warms up and supplies fresh air to the vehicle interior. The 
heating and fresh air system does not cool down the vehicle interior.
The manual air conditioning system or Climatronic cools down and dehumidifies the air. It 
works most effectively when the windows and the glass roof are closed. If heat has built up in the 
vehicle interior, opening the doors and windows can speed up the cooling process.
How the vehicle displays active functions
Lit up LEDs on rotary knobs and buttons indicate that a function has been switched on.
Some settings can be stored in the user accounts of the personalisation function and 
therefore change when the user account changes ⇒ Personalisation.
Front controls
Fig. 109 In the upper section of the centre console: controls for the manual air conditioning system.
Poor visibility through the windows increases the risk of collisions and accidents, which 
can cause serious injuries.
•Keep all windows free of ice, snow and misting to ensure good visibility.
•Set the heating, air conditioning and rear window heating controls to prevent the 
windows from misting up.
•Only set off once all door windows, the windscreen and the rear window are clear.
•Use air recirculation mode only for short periods. If the cooling system is switched off, 
the windows can mist up very quickly in air recirculation mode and reduce visibility 
considerably.
•Switch off the air recirculation mode when it is no longer required.
WARNING
Stale air can quickly make the driver tired and affect their concentration, which in turn can 
cause collisions, accidents and serious injuries.
•Never switch off the blowers or switch on the air recirculation mode for longer periods 
as this prevents fresh air from entering the vehicle interior.
WARNING
Do not place any food, medicine or any other temperature-sensitive items in front of the 
vents. Heat-sensitive food, medicine and other items could be either damaged or rendered 
useless.
NOTICE
If the air conditioning system is not working, switch the air conditioning system off 
immediately and have it checked by a qualified workshop. This can help to prevent 
secondary damage.
NOTICE 

Fig. 110 In the upper section of the centre console: Climatronic controls.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Some functions and buttons may vary according to the vehicle equipment and the type of system 
installed.
Switching off
•Press the  button (vehicles without auxiliary heateryf .
•Turn the centre rotary control left as far as it will go.
•Touch the  function button in the Infotainment system ⇒ Operating the Climatronic 
system via the Infotainment system.
 – Infotainment system
•Press the  button to open the Climatronic air conditioning settings in the Infotainment 
system ⇒ Operating the Climatronic system via the Infotainment system.
 – Synchronising the temperature settings
•Press  to transfer the temperature settings for the driver side to the front passenger 
side.
 – Automatic mode
The automatic mode ensures constant temperatures in the vehicle interior. The air temperature, air 
quantity and air distribution are regulated automatically. Automatic mode switches off if ventilation is 
adjusted manually.
 – Cooling mode
•Press  to switch cooling mode on or off.
In cooling mode, the air is dehumidified.
 – Maximum cooling
•m/k/a995MK Manual air conditioning system: turn the left rotary control to position 
⇒ Fig. 109. Air recirculation mode is switched on automatically.
•m/k/a995MK Climatronic: press the  button ⇒ Fig. 110. Air recirculation 
mode is switched on automatically and the Climatronic air distribution is automatically set to 
position.
/ – Temperature
•m/k/a995MK Manual air conditioning system: turn the left rotary control ⇒ Fig. 109.
•m/k/a995MK Climatronic: turn the outer rotary controls ⇒ Fig. 110 to adjust the 
temperatures for the driver and front passenger sides.
The set temperatures are displayed above the outer rotary controls for Climatronic.
 – Seat and steering wheel heating
•Press the buttons  or  to switch the seat heating on and off ⇒ Seat heating.
To operate the seat heating and steering wheel heating at the same time with the button , 
pair the two functions via the air conditioning menu in the Infotainment system ⇒ Switching the 
steering wheel heating on or off together with the seat heating (only in vehicles with Climatronicyf.
 – Immediate heat button for auxiliary heater
•Press the  button to switch the auxiliary heater on and off when the ignition is switched off 
⇒.
The auxiliary heater provides additional heating when the ignition is switched on.
 – Residual heat
If the ignition is switched off and the engine is warm, the residual heat from the engine is used to 
continue to heat the vehicle interior. The function is switched off after 30 minutes and if the 12-volt 
vehicle battery has a low charge level.
 – Blower
•Turn the middle rotary control. 

 – Switches Air Care on and off ⇒ Air Care Climatronic.
 – Locks the rear temperature selectors ⇒ Rear controls.
 – Opens the auxiliary heater menu ⇒ Auxiliary heater and ventilation.
 – Switches windscreen heating on and off ⇒ Windscreen heating.
 – Switches steering wheel heating on and off ⇒ Steering wheel heating.
 – Switches the seat heating on and off ⇒ Seat heating.
 – General settings submenu
Automatic air recirculation – Switches automatic air recirculation mode on and off ⇒ Air 
recirculation mode.
Automatic auxiliary heater – Allows or prevents auxiliary heating ⇒ Fuel and emission 
control.
Automatic windscreen heating – Switches automatic windscreen heating on and off 
⇒ Windscreen heating.
 – Submenu for air conditioning settings
 – Adjusts the blower speed.
 – Switches cooling system on and off.
 – Air distribution to the upper body via the vents in the dash panel.
 – Air distribution to footwell.
 – Air distribution to the windscreen.
 – Switches air recirculation mode on and off.
Presettings – submenu for presettings
 – Switches automatic mode on.
 – Switches maximum cooling output on or off.
 – Switches the defrost function on or off.
 – Display for manual control of the cooling system.
Air conditioning profiles
Air con. profile – Adjusts the blower speed in  mode.
Rear controls
Fig. 111 In the rear centre console: controls for the rear seats.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Temperature
•Press the  and ⇒ Fig. 111 buttons to set the temperature.
Setting the temperature using the Infotainment system
•Press the  button on the control panel.
•Touch the function button for the temperature for the rear row of seats.
•Touch the  and  function buttons to set the temperature.
The display now shows the set temperature. 

Fig. 118 To the right of the steering wheel: positions of the vehicle key in the ignition lock.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
When there is no vehicle key in the ignition lock, the steering column lock can be activated.
Vehicle key positions ⇒ Fig. 118
Ignition switched off. The vehicle key can be removed.
Ignition switched on. The steering lock can be released. The diesel engine is pre-heated 
and the yellow indicator lamp  lights up yellow.
Depress the brake pedal when the indicator lamp  lights up green. Start the engine. 
Release the vehicle key as soon as the engine starts. Once released, the vehicle key moves 
back to position ⇒ Fig. 118①.
m/k/a995MKDepending on the market, in vehicles with a DSG dual clutch gearbox: If 
you cannot remove the vehicle key from the ignition lock when the vehicle is stationary, move the 
selector lever to position P. If necessary, press the lock button in the selector lever and then 
release it.
Starter button
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The starter button replaces the ignition 
lock (Press & Driveyf .
Fig. 119 In the lower section of the centre console: starter button for starting the engine.
The starter button is used to start the vehicle (Press & Driveyf .
The vehicle can be activated only if there is a valid vehicle key in the vehicle.
When leaving the vehicle, the electronic steering column lock will be activated when the ignition is 
switched off and the driver door is opened ⇒ Steering.
Switching the ignition on and off
Press the starter button once without depressing the brake or clutch pedals ⇒.
Careless or unsupervised use of the vehicle key can lead to accidents or injuries.
•Always take all vehicle keys with you every time you leave the vehicle. The engine can 
be started and electrical equipment such as the window controls can be operated. This 
can cause serious injury.
•Never leave children or people requiring assistance alone in the vehicle when the 
vehicle is locked. They could become trapped in the vehicle in an emergency and may 
not be able to get themselves to safety. For example, locked vehicles may be subjected 
to very high or very low temperatures depending on the season. This can cause 
serious injuries and illness or fatalities, especially among small children.
•Never remove the vehicle key from the ignition lock when the vehicle is in motion. The 
steering column lock may be activated and you will no longer be able to steer the 
vehicle.
•The key bit in the vehicle key needs to be folded out fully and locked in position.
•Only attach light objects weighing under 100 g to the vehicle key.
WARNING
The 12-volt vehicle battery may run down and prevent the motor from restarting if the 
ignition is switched on while the engine is switched off.
•Always switch off the ignition before leaving the vehicle.
NOTICE 

First read and observe the introductoryinformation and safety warnings⇒
Introduction
Warning and indicator lamps in the instrument cluster
Warning and indicator lamps light up
Fault in engine management system. The engine should be checked by a qualified workshop 
as soon as possible.Risk of engine overheating. The engine speed will be automatically 
restricted. The engine speed is shown on the instrument cluster display. The engine speed control 
is lifted when the engine is no longer in a critical temperature range and the foot is taken off the 
accelerator. and Engine speed limitation is initiated due to a fault in the engine 
management system. Make sure that you do not exceed the displayed engine speed. The engine 
should be checked by a qualified workshop as soon as possible.Exhaust system fault. Have 
the engine checked by a qualified workshop.Particulate filter has become saturated with 
soot. Drive in fourth gear (manual gearboxyf  R U  L Q  V H O H F W R U  O H Y H U  S R V L W L R Q  D (DSG dual clutch 
gearboxyf  D W  D  V S H H G  R I  D W  O H D V W     N P  K      P S K \f for approximately 15 minutes. Observe the valid 
speed limits. Go to the nearest qualified workshop if the indicator lamp still does not go out.
m/k/a997MKVehicles with diesel engine
Indicator lamps flash.
Fault in engine management system. The engine should be checked by a qualified workshop 
as soon as possible.Engine management system has detected misfiring, which damages the 
catalytic converter. Reduce speed immediately and drive carefully to the nearest qualified 
workshop. Have the engine checked.
Unauthorised vehicle keys
If a non-authorised vehicle key has been inserted in the ignition lock it can be removed as follows:
•m/k/a995MKVehicles with a DSG dual clutch gearbox: press the lock button in the 
selector lever and release. Pull the vehicle key out of the ignition lock.
•m/k/a995MKVehicles with a manual gearbox: remove the vehicle key from the ignition 
lock.
Emergency start function
Use the emergency start function if no valid vehicle key is detected in the vehicle interior. A 
corresponding display will appear in the instrument cluster. This could be the case, for example, if 
the button cell in the vehicle key is weak or discharged:
•Depress and hold the brake pedal.
•Hold the vehicle key to the right of the steering column trim directly after pressing the starter 
button ⇒ Fig. 120.
•The ignition is switched on automatically, and in some cases the engine is started.
Emergency deactivation
If the engine cannot be switched off by pressing the starter button briefly, an emergency switch-off 
procedure is required:
•Press the starter button twice within a few seconds or press and hold once.
•The engine switches off automatically ⇒.
Immobiliser malfunction
A message will be displayed in the instrument cluster if an unauthorised vehicle key is used or there 
is a fault in the system. The engine cannot be started. Use an authorised vehicle key or seek expert 
assistance.
Start/stop system 
Fig. 121 In the lower part of the centre console: button for the start/stop system.
The start/stop system automatically switches the engine off when the vehicle is coming to a stop 
and when stationary. When required, the engine restarts automatically.
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Conditions that require a manual engine start
The engine must be started manually under the following conditions:
•If the driver door is opened.
•If the bonnet is opened.
Activating and deactivating the start/stop system manually
•Press the button  in the centre console ⇒ Fig. 121 to deactivate the system. If the 
start/stop system has been deactivated, the indicator lamp in the button lights up.
•Press the button  in the centre console again ⇒ Fig. 121 to reactivate the system.
The instrument cluster shows the status of the start/stop system every time the  button is 
pressed.
If the start/stop system has switched the engine off, it will start again as soon as the system has 
been deactivated manually with the  button.
Always deactivate the start/stop system manually when driving through water.
Start/stop mode when Adaptive Cruise Control (ACCyf  L V  D F W L Y e
The engine will be switched off after the Adaptive Cruise Control (ACCyf  K D V  E U R X J K W  W K H  Y H K L F O H  W R  D  
standstill via an active braking intervention ⇒ Adaptive Cruise Control (ACCyf.
m/k/a995MKVehicles with DSG dual clutch gearbox: when the Adaptive Cruise Control 
(ACCyf  L V  D F W L Y H   W K H  ' 6 G dual clutch gearbox can shift into coasting mode and the engine can be 
switched off with the engine-off coasting function.
In the following instances, the engine will restart when the Adaptive Cruise Control (ACCyf  L V  D F W L Y H :
•If the accelerator is depressed.
•When the Adaptive Cruise Control (ACCyf  K D V  U H V X P H G  V S H H G  D Q G  D X W R P D W L F  G L V W D Q F H  F R Q W U R O .
•If the vehicle ahead has moved on.
•If the Adaptive Cruise Control (ACCyf  L V  G H D F W L Y D W H G  D Q G  W K H  Y H K L F O H  G U L Y L Q J  L Q  I U R Q W  P R Y H G  D Z D \ .
Troubleshooting
The engine stop function may be deactivated if the temperature is above around 38°C (100°Fyf .
In some cases, it may be necessary to restart the engine manually. Follow any 
corresponding messages on the instrument cluster display.
The start/stop function is activated automatically if the Eco driving profile is selected on 
vehicles with driving profile selection ⇒ Driving profile selection and 4MOTION Active Control.
Always deactivate the start/stop system manually when driving through water.
Manual gearbox: selecting a gear
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Never switch off the engine or the ignition while the vehicle is in motion. This can lead to a 
loss of vehicle control, accidents and serious injuries.
•The airbags and belt tensioners will not work if the ignition is switched off.
•The brake servo will not work when the engine is switched off. That is why more 
pressure on the brake pedal is needed to brake the vehicle when the engine is 
switched off.
•The power steering will not work when the engine is not running. More power is 
needed to steer the vehicle when the engine is switched off.
•When the ignition is switched off, the steering lock may activate and you will no longer 
be able to steer the vehicle.
•The start/stop system must be deactivated if work is to be carried out in the engine 
compartment.
WARNING
If the start/stop system is used in very high outside temperatures over a long period, the 
12-volt vehicle battery can be damaged.
NOTICE 

Fig. 126 Removing the cover of the gearshift gate.
Fig. 127 Unlocking the selector lever lock manually.
Warning and indicator lamps in the instrument cluster
The indicator lamps light up.
Brake pedal not depressed. Fully depress the brake pedal. Also see Adaptive Cruise Control 
(ACCyf  ⇒ Adaptive Cruise Control (ACCyf.Do not drive on! Gearbox fault. Allow the gearbox 
to cool down in selector lever position P. If the warning lamp does not go out, do not drive on. Seek 
professional assistance. Failure to do so could result in considerable damage to the gearbox.
Brake pedal not depressed, e.g. when trying to engage another position with the selector lever. To 
select a position, press the brake pedal. See also electronic parking brake ⇒ Electronic parking 
brake.
The indicator lamps flash.
The lock button in the selector lever is not engaged. The vehicle cannot drive off. Engage the 
selector lever lock ⇒ Selector lever lock.
Troubleshooting for the selector lever lock
In rare cases, the selector lever lock may not engage in vehicles with a DSG dual clutch 
gearbox. The drive is then deactivated to prevent the vehicle from accidentally pulling away. The 
indicator lamp flashes and an information message is also displayed. Use the following procedure 
to engage the selector lever lock:
•Depress the foot brake and then release it again.
Unlocking the selector lever lock manually
If the power fails in the vehicle (e.g. if the 12-volt battery is flatyf  D Q G  W K H  Y H K L F O H  K D V  W R  E H  S X V K H G  R U  
towed, the selector lever lock must be released manually. Seek professional assistance.
The manual release mechanism is located under the cover of the gearshift gate.
Removing the cover of the gearshift gate
•Switch on the electronic parking brake. If the electronic parking brake cannot be switched on, 
the vehicle will have to be prevented from rolling off using other means.
•Switch off the ignition.
•Carefully pull the cover upwards in the area around the selector lever gaiter with connected 
electrical wiring ⇒ Fig. 126.
•Pull the cover up and over the selector lever ⇒.
Releasing the selector lever lock manually
Depending on the vehicle equipment, there are two possible manual release mechanism variants.
•Using the flat blade of the screwdriver from the vehicle tool kit, carefully push the release lever 
in the direction of the arrow and hold it in this position ⇒ Fig. 126.
•Press the lock button on the front of the selector lever handle and move the selector lever to 
position N.
•After manual release, carefully press the cover onto the centre console while ensuring that the 
electrical wires are positioned correctly.
•Using the flat blade of the screwdriver from the vehicle tool kit, carefully push the release lever 
in the direction of the arrow and hold it in this position ⇒ Fig. 127.
•Press the lock button on the front of the selector lever handle and move the selector lever to 
position N.
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•After manual release, carefully press the cover onto the centre console while ensuring that the 
electrical wires are positioned correctly.
Emergency programme
There is a fault in the system if all the displays on the instrument cluster for the selector lever 
positions have a light background. The DSG dual clutch gearbox is running in an emergency 
programme. The vehicle can still be driven in the emergency programme, but only at reduced 
speed and not in all gears.
In vehicles with a DSG dual clutch gearbox, you may no longer be able to select reverse gear.
In all cases you should have the DSG dual clutch gearbox checked by a qualified workshop 
immediately.
Overheating of the DSG dual clutch gearbox
The DSG dual clutch gearbox can become too hot, for example, if the vehicle pulls off 
frequently, drives at crawling speed for long periods, or in stop-and-go traffic. Overheating is 
indicated by the warning lamp and in some cases by a text message in the instrument cluster 
display. A signal tone may also be given. Stop the vehicle and allow the gearbox to cool down ⇒
.
The vehicle does not move forwards or backwards even though a position 
has been selected
If the vehicle will not move in the required direction, the system may have selected the position 
incorrectly. Depress the brake pedal and reselect the position.
If the vehicle still does not move in the required direction, there is a system fault. Seek expert 
assistance and have the system checked.
Downhill speed control
If the vehicle is being held on the Auto Hold function, the green indicator lamp  lights up. 
Switch off Auto Hold if necessary ⇒ Auto Hold function.
The Hill Descent Control system in vehicles with a DSG dual clutch gearbox helps when braking 
and travelling downhill ⇒. This system uses the braking power of the engine, rather than the 
brakes directly.
The DSG dual clutch gearbox selects the best gear for the circumstances, depending on the 
steepness of the hill and the current speed. The selector lever must be in position D/S. The downhill 
speed control is not active in Tiptronic mode.
As the downhill speed control system can shift down only as far as third gear, it may be necessary 
to activate the Tiptronic mode when driving down particularly steep inclines. When in Tiptronic 
mode, select second or first gear manually in order to make use of the braking effect of the engine 
and to relieve the load on the brakes.
The start/stop system is automatically deactivated as long as downhill speed control is active.
Activating downhill speed control automatically:
•If the downhill gradient is greater than approximately 6yb .
•AND: if the selector lever is in position D/S.
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Never move the selector lever out of the position P if the electronic parking brake is not 
switched on. Otherwise the vehicle could move unexpectedly if it is stopped on an incline, 
which could lead to accidents and serious injuries.
WARNING
The DSG dual clutch gearbox will become damaged if the vehicle is allowed to roll for a 
long period of time or at a high speed (for example while being towedyf  Z L W K  W K H  V H O H F W R U  
lever in position N and the engine switched off.
NOTICE
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•If the display indicates that the gearbox is overheating for the first time, the vehicle will 
have to be parked safely or driven faster than 20 km/h (12 mphyf .
•If the text message and signal tone are repeated every ten seconds, the vehicle must be 
parked safely immediately and the engine switched off. Allow the gearbox to cool down.
•In order to prevent damage to the gearbox, you should not drive on until the acoustic 
warning stops. You should not pull away or drive the vehicle at very low speeds while 
the gearbox is overheated.
NOTICE
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