Light switch VOLKSWAGEN TIGUAN 2021 Service Manual

m/k/a995MK Vehicles with DSG dual clutch gearbox: the selector lever must be in the
Tiptronic position ⇒ Changing gear using Tiptronic.
No recommended gear is indicated if the most suitable gear is already selected. The currently
selected gear is displayed.
Information on cleaning the particulate filter
The engine management system recognises when the particulate filter is becoming saturated and
supports regeneration of the particulate filter by recommending the most suitable gear when driving.
Compared with normal driving, this may mean driving with an increased engine speed ⇒ Particulate 
filter.
Driving in the correct gear can help to reduce fuel consumption.
Gear-change indicator display goes out when the clutch is depressed in vehicles with a
manual gearbox or when Tiptronic position is deselected in vehicles with a DSG dual clutch
gearbox.
Driving economically
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The fuel consumption, pollution and
wear of the engine, brakes and tyres
are reduced by an appropriate driving
style. A few tips are provided below
which will help you protect the
environment and also save money.
Fig. 116 Fuel consumption in litres per 100 km at two different outside temperatures.
Think ahead when driving
The fuel consumption will increase if you do not adopt a steady driving style. Keeping a close eye
on the traffic can help to avoid frequent acceleration and braking. Keeping a sufficient distance from
the vehicle in front will help you anticipate the driving situation.
Use the cruise control system where possible ⇒ Cruise control system (CCSyf.
With a gear engaged, allow the vehicle to come to a halt by itself to make use of the engine braking
effect, e.g. when approaching traffic lights.
Using freewheeling
m/k/a995MKVehicles with a DSG dual clutch gearbox: When the selector lever is in
position D/S and neither the accelerator nor the brake pedal is depressed, the vehicle will roll
(coastyfZLWKSUDFWLFDOO\QRHQHUJ\EHLQJFRQVXPHG.
With the engine-off coasting function, the engine is not just disengaged, but is also switched off.
Driving with DSG dual clutch gearbox ⇒ Driving with DSG dual clutch gearbox.
Change gears in an energy-saving way
Shifting up early at an engine speed of 2,000 rpm will save energy. Do not drive gears to the limit
and avoid high revs.
The gear-change indicator is only designed to assist the driver and cannot replace the
driver's own judgement.
•The driver has full responsibility for selecting the correct gear in all situations (e.g.
when overtaking, driving up and down hills ⇒ Trailer towingand when towing a traileryf.
CAUTION
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Warning lights and text messages are shown on the instrument cluster display. These warnings
may be accompanied by acoustic signals.
Front brake pads worn. Go to a qualified workshop immediately. All brake pads should be
checked and renewed as necessary.
Malfunction in the brake system
A brake circuit may have failed if you have to reduce speed and the vehicle does not brake as
normal (sudden increase in braking distanceyf7KLVLVLQGLFDWHGE\WKHZDUQLQJODPS and in
some cases by a text message. Go to the nearest qualified workshop immediately to have the fault
corrected. Drive at low speed when doing this and anticipate much longer braking distances and an
increase in the pressure required on the pedal.
Starting and stopping the engine
Introduction
This chapter contains information on the followingsubjects:
⇒ Ignition lock
⇒ Starter button
⇒ Starting the engine
⇒ Stopping the engine
⇒ Electronic immobiliser
⇒ Troubleshooting
Push-starting or tow-starting
For technical reasons, your vehicle must not be push-started or tow-started. Use jump leads to
start the engine instead ⇒ Jump starting.
Ignition lock
Switching the engine off while the vehicle is moving makes it more difficult to stop the
vehicle. This can lead to loss of control of the vehicle and to accidents and severe injuries.
•Braking and steering support systems, the airbag system, the belt tensioners and other
items of safety equipment in the vehicle are only active when the engine is running.
•Never switch the engine or ignition off while the vehicle is in motion.
WARNING
The risk of serious injury can be reduced with the engine running or when starting the
engine.
•Never start or run the engine in unventilated or closed rooms. The exhaust fumes
contain carbon monoxide, an odourless and colourless toxic gas. Carbon monoxide
can cause people to lose consciousness. It can also cause death.
•Never start or run the engine if oil, fuel or any other highly flammable fluids are under
or near the vehicle, or are leaking out of the vehicle, e.g. as the result of damage.
•Never leave the vehicle unattended with the engine running, particularly if a gear or
position has been selected. The vehicle could move suddenly or something
unexpected may happen that may cause damage, fire and serious injuries.
•Never use a start booster. Start boosters may explode and cause the engine to
suddenly run at high revs.
WARNING
The components of the exhaust system become very hot. This can cause fires and serious
injuries.
•Never park the vehicle where parts of the exhaust system can come into contact with
inflammable material underneath the vehicle, e.g. undergrowth, leaves, dry grass, spilt
fuel.
•Never apply additional underseal or anti-corrosion coatings to the exhaust pipes,
catalytic converters, heat shields or particulate filter.
WARNING

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

Automatic ignition switch-off
The ignition switches off automatically after a short time if the driver moves away from the vehicle
with the vehicle key when the ignition is switched on. If the dipped beam headlights were switched
on at the time, the side lights will remain switched on for approximately 30 minutes. The side lights
can be switched off manually ⇒ Lights or by locking the vehicle ⇒ Central and manual locking.
Once the vehicle detects that the driver is absent when the engine stop is active, the ignition will
switched off automatically after a certain period of time.
Automatic ignition switch-off in vehicles with a start/stop system
When all the following conditions are fulfilled at the same time, the vehicle ignition will be switched
off automatically when engine stop is active and when the vehicle is stationary:
•The driver removes their seat belt.
•No pedals are depressed.
•The driver door is opened.
If the ignition is deactivated automatically while the dipped beam headlights are switched on ,
the side lights remain switched on for around 30 minutes.
The side lights can be switched off manually or will go off when the vehicle is locked.
Engine restart function
If no valid vehicle key is detected in the vehicle interior once the engine has been switched off, the
engine can be restarted within approximately 5 seconds. A corresponding message appears on the
instrument cluster display.
After this time, the engine cannot be re-started without a valid vehicle key in the vehicle interior.
Before leaving the vehicle, always switch off the ignition manually and observe any
information shown in the instrument cluster display.
Leaving the vehicle stationary for long periods with the ignition switched on can discharge
the 12-volt vehicle battery so that the engine can no longer be started.
The engine cannot, for example, be started with the starter button if the button cell in the
vehicle key is weak or flat. In this case, use the emergency start function ⇒ Emergency start 
function.
Starting the engine
First read and observe the introductoryinformation and safety warnings⇒
Introduction
•m/k/a995MKVehicles with ignition lock: Turn the vehicle key to position ⇒ Fig. 118①.
The ignition is switched on.
•m/k/a995MKVehicles with a starter button: Press the starter button once. The ignition is
switched on.
•m/k/a995MK Vehicles with a diesel engine: During the diesel engine preheating phase,
the indicator lamp in the instrument cluster lights up.
•Depress and hold the brake pedal until the electronic parking brake has been switched off.
•m/k/a995MKVehicles with manual gearbox: fully depress the clutch pedal and hold it
until the engine has been started. Move the gear lever to neutral position.
•m/k/a995MKVehicles with DSG dual clutch gearbox: move the selector lever to
position P or N.
Unintentional vehicle movements can cause serious injury.
•Do not depress the brake or clutch pedal when switching on the ignition as the engine
will then start immediately.
WARNING
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. Children or third
parties could lock the vehicle, start the engine, switch on the ignition or operate
electrical equipment such as the electric windows.
WARNING

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 gearboxyfRULQVHOHFWRUOHYHUSRVLWLRQ D (DSG dual clutch
gearboxyfDWDVSHHGRIDWOHDVWNPKPSK\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 (ACCyfLVDFWLYe
The engine will be switched off after the Adaptive Cruise Control (ACCyfKDVEURXJKWWKHYHKLFOHWRD
standstill via an active braking intervention ⇒ Adaptive Cruise Control (ACCyf.
m/k/a995MKVehicles with DSG dual clutch gearbox: when the Adaptive Cruise Control
(ACCyfLVDFWLYHWKH'6G 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 (ACCyfLVDFWLYH:
•If the accelerator is depressed.
•When the Adaptive Cruise Control (ACCyfKDVUHVXPHGVSHHGDQGDXWRPDWLFGLVWDQFHFRQWURO.
•If the vehicle ahead has moved on.
•If the Adaptive Cruise Control (ACCyfLVGHDFWLYDWHGDQGWKHYHKLFOHGULYLQJLQIURQWPRYHGDZD\.
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

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 (TCSyfLVVZLWFKHGRIIHVSHFLDOO\LIWKHURDGLVVOLSSHU\.
•Switch the traction control system (TCSyfEDFNRQDIWHUDFFHOHUDWLRQ.
•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
(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 flatyfDQGWKHYHKLFOHKDVWREHSXVKHGRU
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 towedyfZLWKWKHVHOHFWRU
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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•In addition, if the cruise control system or Adaptive Cruise Control (ACCyfLVVZLWFKHGRII:
if the vehicle speed is less than approximately 80 km/h (50 mphyf or the brake pedal is
depressed.
•In addition, if the cruise control system or Adaptive Cruise Control (ACCyfLVDFWLYH: 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 (ACCyfLVDFWLYH: 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 mphyfWKHYHKLFOHVSHHGZLOOEH
limited to a speed between min. 2 km/h (1 mphyfDQGPD[NPKPSK\f. 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 mphyfWKH function display is visible on the instrument
cluster displayyf.
•The downhill gradient is at least 10 yb.
•You do not brake or accelerate.
The Hill Descent Control function will be deactivated when the downhill gradient is less than 5 yb.
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 icyyf.
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