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
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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•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
drive come with additional OFFROAD driving profiles ⇒ Selecting a driving profile (4MOTION
Action Control).
The driving profile can be changed when the vehicle is stationary or while driving ⇒. After
selecting a driving profile, the vehicle settings (excluding engine settings) are switched to the new
profile mode immediately. When traffic conditions allow, briefly take your foot off the accelerator to
activate the newly selected driving profile for the engine.
Some settings can be stored in the user accounts of the personalisation function and
therefore change when the user account changes ⇒ Personalisation.
Selecting a driving profile (ONROAD)
Fig. 128 In the lower section of the centre console: driving profile selection button.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Selecting the driving profile
•Switch on the ignition.
•Press the driving profile selection button ⇒ Fig. 128.
•Touch the function button in the Infotainment system to display additional information about
the active driving profile.
•Touch the function button for the required driving profile.
•OR: press the driving profile button ⇒ Fig. 128 again to select the next driving profile.
If the Normal driving profile is selected, the LED in the driving profile selection button will remain
switched off.
When the ignition is switched off, the set driving profile and the individual settings will remain
selected.
The driving profiles Sport and Eco will also remain selected after the ignition has been switched
off. However, settings for the engine or DSG dual clutch gearbox may switch to the Normal driving
profile when the ignition is switched back on again.
In order to reactivate the sports function, the Sport driving profile must be selected again or the
selector lever of the DSG dual clutch gearbox must be moved to S⇒ DSG dual clutch gearbox.
To reactivate the eco functions, select the Eco driving profile again.
Recommended driving situations for each driving profile
•Eco: switches the vehicle into economical mode and helps the driver to drive the vehicle in a
fuel-efficient manner. Coasting mode is available in the Eco driving profile.
•Comfort: the Comfort driving profile is available only for vehicles with adaptive chassis control
(DCC). The driving profile creates a comfort-based vehicle setup and is suited to poor-quality
sections of road or long motorway journeys, for example.
•Normal: balanced setting, e.g. for everyday use.
•Sport: this setting gives the driver a sporty driving feeling.
•Individual: individual systems can be adjusted to suit personal requirements ⇒ Adjusting the
driving profile to suit your requirements.
Effects of the driving profiles on the vehicle setup
•Adaptive chassis control (DCC)
•Steering
•Powertrain (engine and gearbox)
•Adaptive cruise control (ACC)
•Dynamic cornering light and dynamic main beam control (Dynamic Light Assist)
•Air conditioning system
Setting a driving mode while the vehicle is in motion can distract you from the road and
cause accidents.
WARNING
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•Proactive occupant protection system
In vehicles with a DSG dual clutch gearbox, the system automatically changes to gear
position S when the Sport driving profile is selected. The system automatically switches to gear
position D when the Eco driving profile is selected. Since coasting is active in the Eco driving
profile, the gearbox programme E is additionally displayed on the instrument cluster display.
The driver can adjust certain vehicle functions irrespective of the selected driving profile. For
example, the driver can switch to gear position S when the Eco driving profile is selected.
Selecting a driving profile (4MOTION Action Control)
Fig. 129 In the lower section of the centre console: control for the 4MOTION Active Control in
vehicles with all-wheel drive.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Key to ⇒ Fig. 129:
MODE button: Selects Onroad driving profiles and opens menu in the Infotainment system.
Snow driving profile.
On-road driving profile.
Off-road driving profile.
Off-road Individual driving profile.
Selecting the driving profile
•Switch on the ignition.
•Turn the control for the 4MOTION Active Control until the LED next to the desired driving profile
lights up ⇒ Fig. 129.
•To switch through the Onroad driving profiles, press the MODE button or press an Onroad
driving profile in the Infotainment system.
•Touch the function button to display additional information about the active driving mode.
•Touch the function button for the required driving profile in the Infotainment system.
When the ignition is switched off, the set driving profile and the individual settings will remain
selected.
If one of the driving profiles Snow, Off-road or Off-road Individual was the last active profile, the
most recently active On-road driving profile is activated if the ignition remains switched off for a
relatively long period.
The driving profile Sport will also remain selected after the ignition has been switched off. However,
sport functions, e.g., for the engine and gearbox, can be deactivated when switching on the ignition
again. To reactivate the sports functions, tip the gearbox selector lever to the rear ⇒ DSG dual
clutch gearbox.
Recommended driving situations for each driving profile
•Snow: The Snow driving profile improves the efficiency of the accelerator on icy or snowy
roads. In addition, the lane holding when cornering and the power in straight driving are also
improved. The dynamic of the ACC Adaptive Cruise Control is restricted. The dynamic
cornering light is adjusted to provide better support in poor visibility. It is not possible to shift into
the S position in the Snow driving profile.
•Off-road: The Off-road driving profile improves the efficiency of the accelerator when driving
off-road. The engine brake is always available and gearshifts can be prevented in critical
situations. In the Off-road driving profile, the Hill Start Assist and Hill Descent Control are
active. The dynamic cornering light is adjusted to provide better support in poor visibility. It is
not possible to shift into the S position in the Off-road driving profile. When the driving profile is
active, the instrument cluster displays the symbol m/k/s562MK.
Changing the driving profile can alter the vehicle handling. Never allow the driving profile
selection to tempt you into taking any risks when driving.
•Always adapt your speed and driving style to suit visibility, weather, road and traffic
conditions.
WARNING
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Explanation of some technical terms
Fig. 131 Illustration: angle of gradient.
The terrain might look harmless, but there could be hidden dangers. Potholes, hollows,
ditches, precipices, obstacles, shallows, soft and boggy surfaces are often not
recognisable as such and can be covered either fully or partly by water or grass or
branches lying on the ground. Driving off-road over such terrain could cause accidents,
serious injury and also a vehicle breakdown.
•Check any unknown sections of the route on foot carefully before driving.
•Never choose an unsafe route or take a risk which could endanger you or your
passengers. If you are in any doubt about the safety of the route, turn back and choose
another route.
•Always adjust your speed and driving to match vehicle load levels and off-road,
visibility and weather conditions.
WARNING
•Always avoid traversing a slope ⇒ Traversing a slope.
•Vehicle occupants should never leave the vehicle via the doors facing down the hill
when parked sideways on a steep hill. The combined centre of gravity of the vehicle
and its payload (vehicle occupants and payload) can shift and cause the vehicle to roll
over and roll down the incline. Always leave the vehicle slowly via the doors which
open up the incline ⇒ Traversing a slope.
WARNING
The cruise control system has been designed for use on surfaced roads only. The cruise
control system is not suitable for use off-road and may even be hazardous. If you use the
cruise control system while driving off-road, you may lose control over the vehicle and
sustain severe injuries.
•Never use the cruise control system when driving off-road.
WARNING
The area monitoring system (Front Assist) was developed for use on paved roads only.
The area monitoring system is not suitable for use off-road and may even be hazardous. If
you use the area monitoring system while driving off-road, you may lose control over the
vehicle and sustain severe injuries.
•Never use the area monitoring system when driving off-road.
WARNING
Driving the vehicle when the fuel level is too low could lead to your vehicle breaking down
off-road, accidents and serious injuries.
•When the fuel level is too low, the fuel supply to the engine could be irregular,
especially when driving up or down hills and inclines.
•The steering, all driver assist systems and brake support systems will not function if
the engine sputters or stops completely due to a lack of fuel or irregular fuel supply.
•Always fill the tank when it is still 1/4 full. This reduces the risk of running out of fuel
and breaking down.
WARNING
Any rain entering the vehicle when the windows or glass roof are open can soak the
interior equipment and cause damage to the vehicle. Always keep the windows and glass
roof closed when driving off-road.
NOTICE
Driver assist systems
Cruise control system (CCS)
Introduction
This chapter contains information on the followingsubjects:
⇒ Operating the cruise control system with the lever
⇒ Operating the cruise control system via the multifunction steering wheel
⇒ Troubleshooting
The cruise control system helps to
maintain a speed set by the driver.
Speed range
The cruise control system is available when driving forwards at speeds from around 20 km/h
(15 mph).
Changing gear
Cruise control is interrupted as soon as you press the clutch pedal and is resumed automatically
after the gear change.
Driving downhill
Driving downhill may cause the set speed to be exceeded.
Apply the foot brake to slow the vehicle down, and change down a gear as required.
How do I operate the cruise control system?
Depending on the vehicle equipment, you can operate the cruise control system either by means of
the lever on the steering column ⇒ Operating the cruise control system with the lever or via the
multifunction steering wheel ⇒ Operating the cruise control system via the multifunction steering
wheel. The displays on the instrument cluster are identical in both cases.
Operating the cruise control system with the lever
Objects caught underneath the vehicle underbody are a danger. The vehicle underbody
must always be examined for trapped objects after every journey off-road.
•Never drive if objects are trapped in the underbody, brake system, wheels, running
gear, exhaust system and engine.
•Inflammable materials, such as dry leaves or twigs, could ignite on hot vehicle
components. A fire can cause serious injuries.
•Trapped objects could damage the fuel lines, brake system, seals and other
components. This could cause you to lose control of your vehicle and cause accidents.
WARNING
Use of the cruise control system can lead to accidents and serious injuries if traffic does
not allow you to drive at a safe distance at a constant speed.
•Never use the cruise control system in heavy traffic, on steep or winding roads, or on
slippery road surfaces e.g. on snow, ice, wet roads, loose chippings, or on flooded
roads.
•Never use the cruise control system when driving off-road or on unpaved road
surfaces.
•Adapt your speed and distance from the vehicles ahead to suit visibility, weather, road
and traffic conditions.
•Always switch cruise control off after use to avoid unintentional speed control.
•It is dangerous to use a set speed that is too high for the prevailing road, traffic or
weather conditions.
•The cruise control system cannot maintain a constant speed when travelling downhill.
The vehicle speed can increase under its own weight. Use the foot brake to slow the
vehicle.
WARNING
Fig. 135 On the left of the steering column: cruise control system lever.
Fig. 136 On the instrument cluster display: cruise control system status displays (illustration).
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Key to ⇒ Fig. 136:
Cruise control system not regulating, stored speed shown small or darkened.
System fault. Go to a qualified workshop.
Cruise control system not regulating, no speed stored.
Cruise control system regulating, stored speed displayed in large figures.
Switching on
•Move the lever ⇒ Fig. 135① to position .
No speed has been stored and the speed is not yet controlled.
Starting control
•Press the button ⇒ Fig. 135③ while driving.
The current speed is stored and controlled. The green indicator lamp also lights up.
Setting the speed
•+ 1 km/h (1 mph): tip the lever ⇒ Fig. 135① to position .
•+ 10 km/h (5 mph): push the lever briefly towards ⇒ Fig. 135⊕.
•- 1 km/h (1 mph): press the button ⇒ Fig. 135③.
•- 10 km/h (5 mph): push the lever briefly towards ⇒ Fig. 135㊀.
To keep changing the speed on a continuous basis, press and hold the lever towards
⇒ Fig. 135⊕ or ⇒ Fig. 135㊀. The vehicle adapts the current speed by
accelerating or closing the throttle. The vehicle does not actively brake.
Interrupting control
•Press the lever ⇒ Fig. 135① to position or depress the brake.
The speed remains stored in the memory.
Resuming control
•Move the lever ⇒ Fig. 135① to position .
The stored speed is resumed and controlled.
Switching off
•Move the lever ⇒ Fig. 135① to position .
The cruise control system is switched off and the stored speed is deleted.
Operating the cruise control system via the multifunction steering
wheel