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 gearbox) or in selector lever position D (DSG dual clutch
gearbox) at a speed of at least 70 km/h (44 mph) 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 (ACC) is active
The engine will be switched off after the Adaptive Cruise Control (ACC) has brought the vehicle to a
standstill via an active braking intervention ⇒ Adaptive Cruise Control (ACC).
m/k/a995MKVehicles with DSG dual clutch gearbox: when the Adaptive Cruise Control
(ACC) is active, the DSG 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 (ACC) is active:
•If the accelerator is depressed.
•When the Adaptive Cruise Control (ACC) has resumed speed and automatic distance control.
•If the vehicle ahead has moved on.
•If the Adaptive Cruise Control (ACC) is deactivated and the vehicle driving in front moved away.
Troubleshooting
The engine stop function may be deactivated if the temperature is above around 38°C (100°F).
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
If the accelerator pedal is depressed fully, the gearbox will automatically shift to a lower gear,
depending on the speed and engine revs. This will make use of the full vehicle acceleration.
The gearbox does not shift up to the next gear until the engine reaches the maximum engine speed
for the gear.
When the Eco driving profile is selected in vehicles with driving profile selection ⇒ Driving profile
selection and 4MOTION Active Control and the accelerator is depressed fully beyond the pressure
point, the engine output is automatically regulated to ensure maximum vehicle acceleration.
Launch Control Programme
The Launch Control programme gives the vehicle maximum acceleration from a standing start in
vehicles with a DSG dual clutch gearbox.
•Switch off TCS ⇒ Brake support systems.
•Depress and hold the brake pedal with your left foot.
•In selector lever position D/S, select position S. Alternatively, select the Tiptronic position or in
vehicles with driving profile selection select the Sport driving profile ⇒ Driving profile selection
and 4MOTION Active Control.
•With your right foot, depress the accelerator until the engines speed reaches approximately
3,200 rpm.
•Take your left foot off the brake ⇒. The vehicle will start with maximum acceleration.
•Switch the TCS back on after acceleration.
Troubleshooting
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Rapid acceleration can cause loss of traction and skidding, particularly on slippery roads.
This can cause you to lose control of the vehicle, which can lead to accidents and serious
injuries.
•Always adjust your driving style in accordance with the flow of traffic.
•Only use kickdown or fast acceleration if visibility, weather, road and traffic conditions
permit, and other road users are not put at risk due to the acceleration and the driving
style.
•Please note that the driven wheels could start to spin and the vehicle could skid if the
traction control system (TCS) is switched off, especially if the road is slippery.
•Switch the traction control system (TCS) back on after acceleration.
•Only use the launch control programme, if the road and traffic conditions allow for it.
•You should never endanger other road users through the acceleration of your vehicle
or through your driving style.
WARNING
Never ride the brake pedal. Do not overuse the brake pedal. Constant braking will cause
the brakes to overheat. This can considerably reduce the brake effect, increase the
braking distance and, in certain circumstances, cause the brake system to fail completely.
WARNING
•If you stop the vehicle on an incline, do not attempt to stop it from rolling back by
depressing the accelerator while a position is still selected. The dual clutch gearbox
DSG could overheat and be damaged.
•Never allow the vehicle to roll in position N, particularly if the ignition is switched off.
The DSG dual clutch gearbox will not be lubricated and could be damaged.
•m/k/a995MK Vehicles with Launch Control Programme: accelerating with the
Launch Control programme places heavy strain on all vehicle components. This can
lead to higher rates of wear.
NOTICE
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•Never let the brakes rub by applying light pressure to the brake when it is not
necessary to brake. This will increase levels of wear.
•Before driving down a long, steep gradient, reduce your speed and select a suitable
recuperation level. This will make use of the electric drive braking effect and relieve the
load on the brakes. The brakes could otherwise overheat and possibly fail. The brakes
should only be used to slow or stop the vehicle.
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
(ACC) ⇒ Adaptive Cruise Control (ACC).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 flat) and the vehicle has to be pushed or
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 ⇒
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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 6%.
•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 towed) with the selector
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 mph).
•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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•In addition, if the cruise control system or Adaptive Cruise Control (ACC) is switched off:
if the vehicle speed is less than approximately 80 km/h (50 mph) or the brake pedal is
depressed.
•In addition, if the cruise control system or Adaptive Cruise Control (ACC) is active: if the
stored speed is exceeded.
Deactivating downhill speed control automatically:
•If the downhill gradient becomes less steep.
•OR: if the gearbox shifts up a gear because the engine speed is higher than approximately
4,500 rpm.
•Or in addition if the cruise control system or Adaptive Cruise Control (ACC) is active: if
the stored speed can be maintained.
Hill Descent Control
When Hill Descent Control is active, the indicator lamp lights up white.
When Hill Descent Control is not active, the indicator lamp lights up grey. The system is
switched on, but is not regulating.
The Hill Descent Control system automatically brakes all four wheels to limit the speed when driving
forwards and reversing on steep downhill gradients. The wheels will not lock as the anti-lock brake
system remains active. In vehicles with a manual gearbox, Hill Descent Control adjusts the target
speed so that the engine speed does not drop below the idling speed.
If you enter a downhill slope travelling at a speed under 30 km/h (18 mph), the vehicle speed will be
limited to a speed between min. 2 km/h (1 mph) and max. 30 km/h (18 mph). The driver can use the
accelerator pedal and the brakes to alter the speed in this range. The control speed will be set
again as soon as the driver takes their foot off the accelerator or brake pedal.
However, this can work only if the tyres have sufficient grip on the road. Hill Descent Control
cannot work on an icy or slippery slope, for example.
Hill Descent Control is automatically activated if the following conditions are met:
•The engine is running.
•The Off-road driving profile is selected ⇒ Driving profile selection and 4MOTION Active
Control.
•The speed is under 30 km/h (18 mph) (the function display is visible on the instrument
cluster display).
•The downhill gradient is at least 10 %.
•You do not brake or accelerate.
The Hill Descent Control function will be deactivated when the downhill gradient is less than 5 %.
The intelligent downhill speed control technology cannot overcome the laws of physics,
and functions only within the limits of the system. Never allow the extra convenience
afforded by pull-away assist systems to tempt you into taking any risks when driving.
•Unintentional vehicle movements can cause serious injury.
•The downhill speed control cannot replace the full concentration of the driver.
•Always adapt your speed and driving style to suit visibility, weather, road and traffic
conditions.
•Downhill speed control cannot hold the vehicle in all hill start situations or brake it
sufficiently on all slopes going downhill (e.g. if the ground is slippery or icy).
WARNING
Always be prepared to brake the vehicle. Accidents and injuries could occur if this is not
ensured.
•The downhill speed control is only a support function and may not be able to brake the
vehicle sufficiently in all situations when driving downhill.
•The vehicle may become faster despite the downhill speed control being in operation.
WARNING
Steering
Information on steering
The steering should be locked every time you leave the vehicle to make it more difficult for the
vehicle to be stolen.
Steering
The power steering is not hydraulic. It is an electromechanical system. The advantage of this
steering system is that no hydraulic hoses, hydraulic oil, pumps, filter or other parts are required.
The electromechanical system reduces fuel consumption. A hydraulic system requires constant oil
pressure in the system, whereas an electromechanical steering system only needs an energy
supply while steering.
In vehicles with driving profile selection, the selected driving profile can affect the behaviour of the
power steering ⇒ Driving profile selection and 4MOTION Active Control.
Electronic steering column lock in vehicles with starter button
The steering column will be locked if the driver door is opened and the ignition is switched off. For
this, the vehicle should be stationary and, if necessary, the gear selector lever should be in position
P.
If the ignition is not switched off until after the driver door is opened, the electronic steering column
will only be locked when the vehicle is locked using the vehicle key or the sensor in the door
handle.
Mechanical steering column lock (steering lock) in vehicles with an
ignition lock
The steering column is locked if the vehicle key is removed from the ignition lock when the vehicle
is stationary. Turn the steering wheel slightly until the steering lock clicks into place.
Insert the vehicle key into the ignition lock to unlock the steering lock. Turn the steering wheel
slightly to take the load off the steering lock mechanism. Hold the steering wheel in this position and
turn the ignition on.
Electromechanical steering
The power steering provided by the electromechanical steering system automatically adjusts to the
vehicle speed, steering wheel torque and steering wheel angle. The electromechanical steering
only functions when the engine is running.
You will need considerably more strength than normal to steer the vehicle if the power steering is
reduced or has failed completely.
Counter steering assistance
Counter steering assistance provides the driver with power steering in critical driving situations.
Additional steering power helps the driver when counter steering ⇒.
The intelligent Hill Descent Control technology cannot overcome the laws of physics, and
functions only within the limits of the system. Never allow the extra convenience afforded
by pull-away assist systems to tempt you into taking any risks when driving.
•Unintentional vehicle movements can cause serious injury.
•The Hill Descent Control cannot replace the full concentration of the driver.
•Always adapt your speed and driving style to suit visibility, weather, road and traffic
conditions.
•A Hill Descent Control System may not be able to always hold the vehicle on uphill
gradients or brake it sufficiently on all slopes going downhill (e.g. if the ground is
slippery or icy).
WARNING
Always be prepared to brake the vehicle. Accidents and injuries could occur if this is not
ensured.
•The Hill Descent Control system is only a support function and may not be able to
brake the vehicle sufficiently in all situations when driving downhill.
•The vehicle may accelerate despite the Hill Descent Control system.
WARNING
Progressive steering
Depending on the vehicle equipment level, progressive steering can adjust the force of the steering
movement in a driving situation. Progressive steering only functions when the engine is running.
In urban driving, smaller steering movements are required when parking, manoeuvring, or turning
sharply.
When driving on country roads or on the motorway, the progressive steering provides a more
sporty, direct steering response, and a dynamic feel.
Troubleshooting
Warning and indicator lamps in the instrument cluster
The indicator lamps light up.
Do not drive on! Electromechanical steering not functioning. The steering must be
checked by a qualified workshop as soon as possible.Electromechanical steering function
reduced. The steering must be checked by a qualified workshop as soon as possible. If the yellow
warning lamp remains off after the engine has been restarted and you have driven a short distance,
you do not need to consult a qualified workshop.The 12-volt battery has been disconnected
and reconnected. Drive a short distance at a speed of 15 – 20 km/h (9 – 12 mph).
The indicator lamps flash.
Steering column twisted. Turn the steering wheel back and forth.Steering column not
locked or unlocked. Remove the vehicle key from the ignition lock and switch the ignition back on
again. Follow any messages that are on the instrument cluster display. Do not continue your
journey if the steering column remains locked when the ignition is switched on. Seek expert
assistance.
Driving profile selection and 4MOTION Active
Control
Introduction
This chapter contains information on the followingsubjects:
⇒ Selecting a driving profile (ONROAD)
⇒ Selecting a driving profile (4MOTION Action Control)
⇒ Adjusting the driving profile to suit your requirements
⇒ Troubleshooting
The driving profile selection contains
factory-defined driving profiles which
have different effects on the vehicle
setup. You can also set your own
vehicle setup by means of an individual
driving profile.
Different driving profiles can be selected depending on the vehicle equipment level. The effect on
the vehicle setup in the individual driving profiles depends on the vehicle equipment.
The settings available depend on the type of drive. Vehicles with a front-wheel drive come with
ONROAD driving profiles ⇒ Selecting a driving profile (ONROAD), while vehicles with all-wheel
If the power steering is not working, the steering wheel is difficult to turn, which makes it
difficult to steer the vehicle.
•The power steering only functions when the engine is running.
•Never allow the vehicle to roll if the engine is switched off.
•Never remove the vehicle key from the ignition lock when the vehicle is in motion. The
steering column lock may be activated and it will no longer be possible to steer the
vehicle.
WARNING
In conjunction with the ESC, counter steering assistance provides the driver with
assistance when steering in critical driving situations. The driver must steer the vehicle at
all times. Counter steering assistance does not steer the vehicle.
WARNING
The ignition of the vehicle being towed must be switched on to prevent the steering wheel
from locking, and so that the turn signals, horn, wipers and window washer system can be
used.
NOTICE