2017 VOLKSWAGEN TIGUAN Ac pressure sensor

Depending on the vehicle equipment level, symbols may be displayed in the instrument cluster
instead of warning lamps.
Some warning and indicator lamps are not available in all markets.
For details on indicator lamps which light up in the light switch, see Chapter Lights ⇒ Lights.
SymbolMeaning
Central warning lamp. Observe the additional information on the
instrument cluster display.
Do not drive on!
The electronic parking brake is switched on ⇒ Electronic parking 
brake.
Do not drive on!
Brake fluid level too low or fault in the brake system ⇒ Brake fluid.
Do not drive on!
Coolant level too low ⇒ Engine coolant, engine coolant temperature
too high or fault in the cooling system ⇒ Coolant temperature display.
Do not drive on!
Engine oil pressure too low ⇒ Engine oil.
Flashing: Do not drive on! Fault in the electronic steering column
lock ⇒ Steering.
Lit up: electromechanical steering has failed ⇒ Steering.
Driver or front passenger seat belt not fastened ⇒ Seat belts.
OR: there are objects on the front passenger seat ⇒ Seat belts.
Brake or take evasive action.
Collision warning from area monitoring system (Front Assist) ⇒ Area 
monitoring system (Front Assist).
OR: collision warning from Pedestrian Monitoring ⇒ Pedestrian 
Monitoring.
Depress the brake pedal. ⇒ DSG dual clutch gearbox, ⇒ Adaptive 
Cruise Control (ACC).
Fault in the alternator ⇒ 12-volt vehicle battery.
Front brake pads worn. Go to a qualified workshop immediately. All
brake pads should be checked and renewed as necessary
⇒ Information on the brakes.
Central warning lamp. Observe the additional information on the
instrument cluster display.
Electronic Stability Control (ESC) ⇒ Brake support systems.
Traction control system (TCS) ⇒ Brake support systems.
OR: off-road driving profile active ⇒ Driving profile selection and 
4MOTION Active Control.
Anti-lock brake system faulty or not functioning ⇒ Brake support 
systems.
Electronic parking brake fault ⇒ Electronic parking brake.
Rear fog light switched on ⇒ Lights.
Partial or complete failure of the vehicle lighting, excluding cornering
light ⇒ Changing bulbs.
Lit up: there is a fault that affects the exhaust emissions
⇒ Troubleshooting.
Flashing: misfiring, which damages the catalytic converter
⇒ Troubleshooting.
Engine management system fault (Electronic Power Control)
⇒ Troubleshooting.
Engine speed limited (protection against overheating)
⇒ Troubleshooting.
Lit up: electromechanical steering reduced
OR: the 12-volt battery has been disconnected and reconnected
⇒ Steering.
Flashing: steering column is wound-up or is not unlocked/locked
⇒ Steering.
Lit up: tyre pressure too low ⇒ Tyre monitoring systems.
Flashing: fault in tyre monitoring system ⇒ Tyre monitoring systems.
Fault in the rain/light sensor ⇒ Wipers.
Fault in wipers ⇒ Wipers.
Washer fluid level too low ⇒ Wipers.
Fuel tank almost empty ⇒ Fuel gauge.
Lit up: engine oil level too low ⇒ Engine oil.
Flashing: engine oil system fault ⇒ Engine oil.
®

Performance monitor
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The performance monitor is a display
for sporty driving. The digital
instruments display real-time values for
engine power, temperature and
acceleration that are determined by
sensors on the vehicle. This provides
the driver with an overview of driving
dynamics.
Fig. 27 On the Infotainment system display: Performance monitor.
Key for ⇒ Fig. 27
Display areas.
Arrow buttons for changing to the lap timer.
Opening the performance monitor
•Press the MENU button on the Infotainment system.
•Touch the Vehicle function button.
•Touch the Selection function button.
•Touch the Sport function button.
If you would like to switch between the performance monitor and the lap timer ⇒ Lap timer, touch
one of the arrow buttons on the left and right above the instruments ⇒ Fig. 27②.
Selecting instruments and setting units
The display can show a maximum of three instruments at the same time. Each instrument can be
selected for each display area ⇒ Fig. 27① (left, middle, right).
To change instruments, swipe vertically over the display. The currently selected instrument will then
disappear and a new instrument will appear.
The units can be adjusted for some instruments in the Infotainment system ⇒ Operation and 
display in the Infotainment system.
The following instruments can be displayed:
•Charge pressure display: the charge pressure display ⇒ Fig. 27① (left) shows the pressure
in the charge air system between the turbocharger and engine (in the unit bar). The further to
the right the needle on the scale, the higher the engine power output.
•Accelerometer (G-meter): The accelerometer (G-meter) ⇒ Fig. 27① (centre) shows the
acceleration value in the centre (in the unit g). The red marking in the grid-type area shows the
acceleration level and the direction of the acting force (in the opposite direction according to
physical laws). If you drive to the left, for example, the red marking will move in the right area of
the instrument (and vice versa). If you accelerate, the red marking will move down. If you brake,
the red marking will move up. The level of acceleration is indicated by the position of the red
marking which moves outwards. If the acceleration increases, the red marking will move away
from the centre area.
•Power display: the power display ⇒ Fig. 27① (right) shows the current engine power output
as a digital value and on the surrounding scale (in kW).
•Coolant temperature display: the needle may move further in a clockwise direction under high
engine loads and with high outside temperatures. This is no cause for concern unless the
indicator lamp in the instrument cluster display is lit up or flashing ⇒ Coolant temperature 
display.
•Oil temperature display: the needle is in the middle area under normal driving conditions. If
the needle is in the bottom left area, this means that the engine has not yet reached its
operating temperature. Avoid excessively high speeds and acceleration when the engine has
not yet reached its operating temperature. The needle may move further in a clockwise direction
under high engine loads and at high outside temperatures. This is no cause for concern unless
the indicator lamp in the instrument cluster display is lit up or flashing ⇒ Engine oil.

Belt retractor, belt tensioner, belt tension limiter
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The seat belts in the vehicle are part of the vehicle safety concept ⇒ Airbag system and include the
following important functions:
Automatic belt retractor
Every seat belt is equipped with an automatic belt retractor on the shoulder part of the belt. Full
freedom of movement is made possible when the shoulder belt is pulled slowly or when the vehicle
is travelling at normal speeds. However, if the belt is pulled out quickly or during sudden braking,
during travel in mountains or bends and during acceleration, the automatic belt retractor is locked.
Fastened seat belts on the front seats may be tensioned automatically by the proactive occupant
protection system in critical situations, for example during emergency braking or as a result of
oversteering or understeering. Both seat belts are slackened if the accident does not happen, or
when the critical situation has passed. The proactive occupant protection system is ready to be
triggered again ⇒ Proactive occupant protection system.
Belt tensioners
The seat belts for the front seat vehicle occupants, and in some cases those on the outer rear
seats, are equipped with belt tensioners.
The belt tensioners are activated by sensors during severe frontal, side and rear collisions. They
tighten the seat belts against the direction in which they are pulled. Any slack in the seat belt is
retracted, which can reduce the passenger's movement forwards or in the direction of the impact.
The belt tensioner works together with the airbag system. If the vehicle rolls over, the belt
tensioners will not be activated if the side airbags are not triggered.
A fine dust may be produced when the airbags are triggered. This is quite normal and does not
mean that there is a fire in the vehicle.
Reversible belt tensioning (proactive occupant protection system)
Reversible belt tensioning may trigger in certain driving situations. For example:
•Heavy braking,
•Oversteer or understeer,
•Minor collisions.
⇒ Proactive occupant protection system
Belt tension limiter
The belt tension limiter reduces the pressure exerted by the seat belt on the body during an
accident.
All safety requirements must be observed when the vehicle or components of the system are
scrapped. Qualified workshops are familiar with these requirements ⇒ Service and disposal of belt 
tensioners.
Service and disposal of belt tensioners
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Seat belts may become damaged during any work on the belt tensioners or while removing or
refitting any vehicle parts in conjunction with any other repair work. This damage will not always be
noticeable. The consequence may be that the belt tensioners could function incorrectly, or not
function at all, in the event of an accident.
Regulations must be observed to ensure that the effectiveness of the belt tensioner is not reduced
and that removed parts do not cause any injuries or environmental pollution. Qualified workshops
are familiar with these requirements.
Never adjust the seat belt height when the vehicle is in motion.
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

Warning lamps and text messages may be shown in the instrument cluster display. These warnings
may also be accompanied by acoustic signals.
Engine oil
Lit up: engine oil level too low. Switch off the engine. Check the engine oil level ⇒ Checking 
the engine oil level and refilling the engine oil.Flashing: engine oil system fault. Go to a
qualified workshop and have the engine oil sensor checked.Flashing: engine oil pressure
is too low. Do not drive on!
Switch off the engine and check the engine oil level ⇒ Checking the engine oil level and refilling the 
engine oil - Do not drive on or remain at idling speed if the warning lamp is flashing even if the
engine oil level is correct. The engine could otherwise be damaged. You should obtain professional
assistance.
Engine coolant
Introduction
This chapter contains information on the followingsubjects:
⇒ Coolant specification
⇒ Checking the coolant level and refilling coolant
You should only carry out work on the cooling system if you know exactly how to perform the
required tasks, are aware of the general safety procedures and have access to the correct
equipment, service fluids and suitable tools. Failing to carry out work correctly can cause serious
injuries ⇒. The work should be carried out by a qualified workshop if you are uncertain.
Volkswagen recommends using a Volkswagen dealership for this purpose.
Coolant and coolant additives can pollute the environment. Spilt service fluids must be
collected then disposed of properly and in an environmentally responsible way.
Coolant specification
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The cooling system is filled at the factory with a mixture of specially prepared water and at least
40% coolant additive G 13 (TL-VW 774 J). The coolant additive is dyed purple. This mixture of
water and coolant additive gives the necessary frost protection down to -25°C (-13°F) and protects
the alloy parts of the cooling system against corrosion. The mixture also prevents scaling and
raises the boiling point of the coolant.
In order to protect the coolant system, the proportion of coolant additive must always be at least
40%, even if anti-freeze is not required in warm weather and warm climates.
If greater frost protection is required in very cold climates, the proportion of anti-freeze additive can
be increased. However, the percentage of coolant additive should not exceed 60%, as this would
reduce the frost protection and the cooling effect.
When refilling the coolant, a mixture of distilled water and at least 40% coolant additive - G 13 - or
- G 12 plus-plus - (TL-VW 774 G) (both of which are dyed purple) must be used in order to obtain
the optimum corrosion protection ⇒. Mixing - G 13 - with the coolant additives - G 12 plus - (TL-
VW 774 F), - G 12 - (dyed red) or - G 11 - (dyed blue-green) will significantly decrease the level of
corrosion protection and should therefore be avoided ⇒.
Engine coolant is toxic.
•Engine coolant should only be kept in sealed original containers in a safe place.
•Never store engine coolant in empty food containers, bottles or any other non-original
containers as people finding these containers may then drink the engine coolant.
•The engine coolant must be stored out of the reach of children.
•Please note that the amount of correct coolant additive used must be sufficient for the
lowest ambient temperature that you expect the vehicle to be exposed to.
•Coolant can freeze at extremely cold outside temperatures, causing the vehicle to
break down. Vehicle occupants with inadequate winter clothing could then freeze to
death as the heating will also no longer function.
WARNING

If the tyre pressure is too low, this will increase fuel consumption and tyre wear.
When new tyres are driven at high speeds for the first time, they can expand slightly and
trigger a one-off pressure warning.
Old tyres should only be replaced by tyres that have been approved by Volkswagen for the
vehicle type.
Do not rely solely on the tyre monitoring system. Check your tyres regularly to ensure that
they are properly inflated and have no signs of damage, such as punctures, cuts, cracks, and
blisters. Remove any objects that become embedded in the tyre tread but have not penetrated into
the body of the tyre itself.
Types of tyre monitoring systems
First read and observe the introductoryinformation and safety warnings⇒
Introduction
There are two different tyre monitoring systems available for this vehicle. Their differing features are
described below:
Tyre Pressure Loss Indicator
•Monitoring of various parameters (for example rolling circumference) of all wheels using ABS
sensors (indirect measurement).
Tyre Pressure Monitoring System
•Monitoring of the tyre pressure by means of pressure sensors on each tyre valve (direct
measurement). Tyre valve made of metal.
Tyre Pressure Loss Indicator
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Functional description
The Tyre Pressure Loss Indicator uses data from the ABS sensors and other functions to check the
speed of rotation and the rolling circumference of the individual wheels.
The rolling circumference can change:
•If the tyre pressure has been changed.
•If the tyre pressure is too low.
•If the tyre has structural damage.
•If the vehicle is loaded more heavily on one side.
•If snow chains have been fitted.
•If a temporary spare wheel has been fitted.
•If one wheel per axle has been changed.
The Tyre Pressure Loss Indicator may react with a delay or not display anything at all in the
event of a sporty driving style, when driving on snow-covered or icy roads or unpaved roads or
when driving with snow chains.
Synchronising the Tyre Pressure Loss Indicator
•Switch on the ignition.
•Press the button or function button, depending on version ⇒ Vehicle settings menu.
The intelligent tyre monitoring system technology cannot overcome the laws of physics,
and functions only within the limits of the system. Incorrect handling of the wheels and
tyres can lead to a sudden loss of pressure in the tyres, tread separation and even tyre
blow-out.
•Check tyre pressures regularly and always maintain the specified tyre pressure value
⇒ Tyre pressure. If the tyre pressure is too low, it is possible that the tyre temperature
will increase to such an extent that the tread peels off and the tyre bursts.
•Always maintain the correct cold tyre pressure as specified on the sticker ⇒ Tyre 
pressure.
•Check the tyre pressure regularly when the tyres are cold. If necessary, adjust the tyre
pressure in the cold tyre to the recommended tyre pressure for the tyres installed on
your vehicle ⇒ Tyre pressure.
•Check your tyres regularly for signs of wear or damage.
•Never exceed the top speed and load permitted for the fitted tyres.
WARNING

•Open the Vehicle settings menu in the Infotainment system.
•Touch the Tyres function button.
•Touch the SET function button.
•When all four tyre pressures correspond to the required values, touch the Confirm function
button.
After an extended driving time with driving at different speeds, the system will automatically learn
the new values and monitor them.
•If the tyre pressures have been changed.
•If one or more wheels have been changed.
•If the wheels have been swapped round, e.g. from front to rear ⇒ Rotating wheels front to rear.
The Tyre Pressure Loss Indicator stops working if there is a fault in the ESC or ABS ⇒ Brake 
support systems.
After a warning about the tyre pressure being too low, switch the ignition off and then back
on again. The Tyre Pressure Loss Indicator can only then be re-synchronised.
Tyre Pressure Monitoring System
Fig. 234 Typical display in the instrument cluster: current tyre pressures.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Key to ⇒ Fig. 234:
Target pressure in bar.
Actual pressure in bar.
Loss in pressure in front left.
System fault for rear right tyre.
The Tyre Pressure Monitoring System (TPMS) monitors the tyre pressure of the four wheels while
the vehicle is in motion using pressure sensors on the tyres. The system warns the driver in the
event of a pressure loss.
Display of tyre pressures on the instrument cluster
Open the menu Vehicle status in the instrument cluster display ⇒ Instrument cluster. The vehicle
is displayed with the target and actual pressures of all the wheels ⇒ Fig. 234.
When the ignition is switched on, the last measured tyre pressures will be displayed first; these
values will be updated when the journey is started. If the tyre pressure is too low, the respective
actual values and the affected tyres will be marked ⇒ Fig. 234.
If the tyres are in rest state, the sensors will not transmit any tyre pressures. This stops the sensor
batteries discharging.
If no tyre pressures are transmitted, the last received values are shown in grey.
Switching the Tyre Pressure Monitoring System on and off
Observe any country-specific legal requirements for the Tyre Pressure Monitoring System.
If a set of tyres is fitted to the vehicle where the tyres either do not have wheel sensors or have
wheel sensors that are not compatible with the vehicle, the indicator lamp will flash for
approximately one minute and then light up steadily. The tyre pressures will not be monitored. The
system cannot be switched off.
Adjusting the tyre pressure
Following any relevant change in the vehicle load, the tyre pressure must be checked and altered
as necessary. The tyre pressures recommended for the vehicle are on a sticker on the driver door
pillar or on the inside of the tank flap ⇒ Tyre pressure.
1)

There may be differences between readings on the pressure gauge when filling the tyres and the
values determined by the Tyre Pressure Monitoring System. The Tyre Pressure Monitoring System
is more precise.
Selecting target pressures for partial or full vehicle load
The driver must select the appropriate target pressure depending on the vehicle load level.
•Switch on the ignition.
•Press the button or function button, depending on version ⇒ Vehicle settings menu.
•Touch the Vehicle status function button.
•Touch the Settings function button.
•Select the Tyres menu option.
•Select the load level.
Selecting the tyre type
While the dimensions of the tyres are changed, it may be necessary to adjust the target pressure
for the new tyres. If no adjustment is necessary, the selection menu will not be available.
•Switch on the ignition.
•Press the button or function button, depending on version ⇒ Vehicle settings menu.
•Touch the Vehicle status function button.
•Touch the Settings function button.
•Select the Tyres menu option.
•Select the appropriate tyre size.
If the tyre sizes are fitted that do not correspond to the factory-specified sizes, the corresponding
target tyre pressures can be entered by a Volkswagen dealer.
Spare wheel or temporary spare wheel
The tyre pressure of the spare wheel or the temporary spare wheel in the luggage compartment is
not monitored.
Depends on the vehicle.
Troubleshooting for the Tyre Pressure Loss Indicator
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Lit up
•Do not drive on!
•Check and adjust all tyre pressures ⇒ Tyre pressure.
•The damaged tyre should be replaced.
•Re-synchronise the Tyre Pressure Loss Indicator ⇒ Tyre Pressure Loss Indicator.
•If the problem persists, seek expert assistance.
Flashes
•Do not drive on!
•Switch the ignition off and then back on again.
•Re-synchronise the Tyre Pressure Loss Indicator ⇒ Tyre Pressure Loss Indicator.
•If the problem persists, seek expert assistance.
•The pressure sensors are secured to special aluminium valves that are screwed rigidly
in place. When inflating the tyres and checking the pressure, do not bend the valves
into position.
•Missing valve caps could lead to damage to the valve and the sensors. Always make
sure that all valve caps are fully screwed on. Do not use metal valve caps.
•Do not use convenience valve caps as they do not form a proper seal. This can cause
damage to the sensors.
NOTICE
1)