fuel cap VOLKSWAGEN TIGUAN 2018 Owners Manual

•Once you have set the hour, wait until the minutes display in the instrument cluster is marked.
•Then press the button repeatedly until the required minute is displayed. Press and hold
the button to scroll through quickly.
•Release the button to finish setting the clock.
The analogue clock adjusts itself a few seconds after ignition is switched on.
You can also use the Infotainment system to adjust the time ⇒ Vehicle settings menu.
Fuel gauge
Fig. 20 In the instrument cluster: fuel gauge for petrol and diesel.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Fuel gauge
Lit upPossible cause/remedy ⇒
Fuel tank almost empty. Reserve volume, red marking ⇒ Fig. 20, is
consumed ⇒ Fuel tank capacity.
Fill the tank as soon as possible ⇒ Fuel types and refuelling.
Water in fuel in vehicles with a diesel engine.
Reduce the vehicle speed immediately and drive to the nearest qualified
workshop at a medium engine speed and avoiding high engine loading.
OR: if the warning lamp lights up immediately after filling the tank, switch off
the engine and seek expert assistance.
When the indicator lamp lights up, the auxiliary heater and the fuel-powered supplementary
heater switch off automatically ⇒ Auxiliary heater and ventilation.
The small arrow next to the petrol pump symbol in the fuel gauge shows you the side of the
vehicle on which the tank flap is located.
Coolant temperature display
Fig. 21 In the instrument cluster: coolant temperature display (illustrationyf.
Driving when the fuel level is too low can lead to the vehicle coming to a standstill in
traffic, potentially causing 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
Do not run the tank empty. Irregular filling periods can cause backfiring and allow unburnt
fuel to enter the exhaust system. The catalytic converter or diesel particulate filter could be
damaged as a result!
NOTICE

Safety instructions for handling fuel
Fuels can pollute the environment. Any spilt service fluids must be cleaned up and disposed
of properly.
The tank flap cannot be opened manually. Seek expert assistance.
Fuel types and refuelling
Introduction
This chapter contains information on the followingsubjects:
⇒ Petrol
⇒ Diesel
⇒ Refuelling
⇒ Misfuelling prevention device
The tank flap is located at the rear right-hand side of the vehicle ⇒ Side view.
Different engines require different fuels. The factory-fitted sticker on the inside of the tank flap
indicates the required fuel type for your vehicle.
Information on indicator and warning lamps can be found in the troubleshooting section at the end
of the chapter ⇒ Troubleshooting.
Petrol
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Vehicles with a petrol engine must be run on unleaded petrol. Fuels with a maximum ethanol
content of 10yb(\f can be used for refuelling ⇒.
The petrol grades differ with respect to the octane number. The vehicle may be filled with petrol that
has a higher octane number than the engine requires. However, this does not provide any
advantage in terms of fuel consumption or engine output.
The fuel quality affects the running properties, performance and service life of the engine. You
should therefore use fuel that already contains suitable service additives if possible ⇒.
Information on the fuel standards can be found in the chapter on fuel standards ⇒ Fuel standards.
Incorrect handling of fuel can cause explosions, fire, serious burns and other injuries.
•Switch off the auxiliary heater⇒ Auxiliary heater and ventilation, the engine, the
ignition, your mobile phone and other wireless equipment while refuelling.
•Do not get into the vehicle to avoid electrostatic discharge.
•Make sure that the tank cap is closed properly and no fuel can escape.
•Comply with any relevant safety information and legislation concerning the handling of
fuels.
WARNING
Fuel may run out of the fuel canister. This could cause fire and injuries.
•Do not carry fuel canisters in the vehicle.
CAUTION
Incorrect refuelling can lead to damage to the vehicle.
•Only use fuels that have been approved for the vehicle.
•Do not use fuels containing metals and only use approved additives.
•Spilt fuel should be removed from all vehicle components immediately.
NOTICE

Diesel
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Vehicles with a diesel engine must be run on diesel ⇒. If you use diesel with a high sulphur
content, the service intervals are shorter ⇒ Service. Information on countries that use diesel with a
high sulphur content is available from your Volkswagen dealership.
The fuel quality affects the running properties, performance and service life of the engine. You
should therefore use fuel that already contains suitable service additives if possible ⇒.
Information on the fuel standards can be found in the chapter on fuel standards ⇒ Fuel standards.
Winter-grade diesel fuel and filter preheater system
Winter-grade diesel fuel, which can be used at temperatures below -20°C (-4°FyfLVDYDLODEOHGXULQJ
the cold months. In countries with different climates, diesel for other temperature conditions is
usually available. Information is available from your Volkswagen dealership and filling stations in
the respective country.
Diesel vehicles are equipped with a filter pre-heater system. When using winter-grade diesel fuel,
the fuel system is safe for operation at temperatures down to around -24°C (-11°Fyf.
However, if the fuel has waxed to such an extent that the engine will not start at temperatures
below -24°C (-11°FyfSODFHWKHYHKLFOHLQDKHDWHGJDUDJHRUZRUNVKRSIRUDZKLOH ⇒.
At cold temperatures, louder noises may occur in the diesel engine and the exhaust gas may
be tinged blue.
Refuelling
Fig. 195 Behind the tank flap: tank cap.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
See the chapter on technical data for information on filling capacities ⇒ Fuel tank capacity.
Incorrect refuelling or unsuitable fuel additives may cause damage to the vehicle.
•Before refuelling, check whether the fuel standard information provided on the pump
conforms to the requirements of the vehicle.
•Use only Volkswagen-approved service additives in the approved quantity.
•If, in an emergency, you have to use petrol with an octane number lower than the
recommended number, drive at medium engine speeds and avoid high engine loading.
Avoid high engine speeds and heavy engine loads. Failure to do so can result in engine
damage. Fill the tank with petrol with the correct octane number as soon as possible.
NOTICE
Start boosters may explode or suddenly cause the engine to run at high revs. This can
cause injuries or damage to the engine.
•Never use a start booster.
WARNING
Incorrect refuelling can lead to damage to the vehicle.
•Before refuelling, check whether the fuel standard information provided on the pump
conforms to the requirements of the vehicle.
•Do not refuel with RME fuel, petrol, fuel oil or other unsuitable fuels.
•Use only Volkswagen-approved service additives in the approved quantity.
NOTICE

Refuelling process
•Unlock the tank flap with the vehicle key or the button in the driver door.
•Open the tank flap.
•Unscrew the tank cap and place it in the holder on the tank flap.
•The fuel tank is full when the properly operated automatic filler nozzle clicks off for the first time
⇒.
•Screw the tank cap onto the filler neck.
•Close the tank flap.
Misfuelling prevention device
Fig. 196 In the tank filler neck: misfuelling prevention device.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The tank filler neck in diesel vehicles can be fitted with a misfuelling prevention device ⇒ Fig. 196.
The misfuelling prevention device ensures that the vehicle can be refuelled only using diesel pump
nozzles.
Turn the diesel nozzle to and fro if the misfuelling prevention device gets stuck. This can open the
misfuelling prevention device and make it possible to refuel the vehicle. If the misfuelling prevention
device remains closed, proceed to a qualified workshop to have the system checked.
If it is necessary to refuel the vehicle using a spare fuel canister in the event of an emergency, the
misfuelling prevention device will not open. In order to fill the tank with fuel, pour the diesel into the
tank extremely slowly in very small quantities.
Components relevant to emission control
Introduction
This chapter contains information on the followingsubjects:
⇒ Emission control with AdBlue
⇒ Catalytic converter
⇒ Particulate filter
⇒ Troubleshooting
•Emission control with AdBlue⇒ Emission control with AdBlue
•Catalytic converter ⇒ Catalytic converter
•Particulate filter ⇒ Particulate filter
Information on indicator and warning lamps can be found in the troubleshooting section at the end
of the chapter ⇒ Troubleshooting.
Overfilling the fuel tank may cause the fuel to splash out and overflow. This can cause
fires, explosions and serious injuries.
•Do not continue refuelling when the petrol nozzle switches off for the first time.
WARNING
Do not fill up with fuel that has a lower Research Octane Number (RONyfWKDQVSHFLILHG7KH
engine could otherwise be damaged.
NOTICE
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•Unscrew the cap on the filler neck.
Refilling AdBlue with the refill bottle
•Please read the manufacturer's notes and information on the refill bottle.
•Observe the expiry date.
•Remove the screw top of the refill bottle.
•Place the refill bottle on the tank filler neck and screw tightly in place.
•Press and hold the refill bottle.
•The AdBlue tank is full when AdBlue no longer flows out of the refill bottle ⇒.
•Unscrew the refill bottle and remove upwards.
Refilling AdBlue with the filler nozzle
Do not fill fuel and AdBlue at the same time.
•The procedure for refilling with an AdBlue filler nozzle is the same as for refilling the fuel tank
with fuel.
•The handle of the filler nozzle must point downwards in order to prevent overfilling the AdBlue
tank.
•The AdBlue tank is full as soon as the filler nozzle clicks off for the first time. Do not continue
filling the tank! The AdBlue tank could be damaged by overfilling and AdBlue could escape⇒
.
Closing the tank filler neck
•Screw in the cap on the filler neck until it engages.
•Close the tank flap.
Preparing to drive on
•Switch on only the ignition for 30 seconds.
•The system detects that the tank has been refilled.
•Do not start the engine until the 30 seconds have elapsed.
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The refill bottle must be disposed of in accordance with regulations governing the protection
of the environment.
Catalytic converter
First read and observe the introductoryinformation and safety warnings⇒
Introduction
To help ensure long-term functionality in the exhaust system and the catalytic converter:
•Use unleaded petrol only ⇒ Fuel types and refuelling.
•Do not allow the fuel tank to run completely empty.
•Do not overfill engine oil ⇒ Engine oil.
•Do not tow start the vehicle. Use jump leads ⇒ Jump starting.
If you notice misfiring, uneven running or loss of power when the vehicle is moving, reduce speed
immediately. The vehicle should be inspected at the nearest qualified workshop
⇒ Troubleshooting. If this happens, unburnt fuel can enter the exhaust system and escape into the
atmosphere. The catalytic converter can also be damaged by overheating.
The emissions may have a sulphur-like smell even if the emission purification system is
working properly.
Particulate filter
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Function
The particulate filter filters out soot particles in the exhaust gas. Observe the following points to
ensure that the exhaust purification system will work properly for a long time:
AdBlue is an irritant and corrosive fluid that can damage the skin, eyes and breathing
passages upon contact.
•Always observe the instructions for use when using AdBlue. If containers are used
according to the instructions, it is unlikely that a user will come into contact with
AdBlue.
•AdBlue must be kept in the closed original container. Never use empty food
containers, bottles or other containers for this purpose.
•Always store in a safe place out of reach of children.
•If AdBlue gets into the eyes, immediately rinse the eyes with plenty of water for at
least 15 minutes and consult a doctor.
•If AdBlue gets onto the skin, immediately wash the area with plenty of water for at
least 15 minutes and consult a doctor if the skin becomes irritated.
•If AdBlue is swallowed, immediately rinse the mouth out with lots of water for at least
15 minutes. Do not induce vomiting unless instructed to do so by a doctor. Seek
medical assistance immediately.
CAUTION
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Overfilling AdBlue may damage the tank system and the vehicle.
•Do not fill with more than the maximum refill quantity indicated on the instrument
cluster display.
•Remove any spilt AdBlue as quickly as possible with a damp cloth and plenty of cold
water.
•If the AdBlue has already formed crystals, use warm water and a sponge to remove.
NOTICE
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Improper use of AdBlue may cause damage to the vehicle that is not covered by the
warranty.
•Only use AdBlue that complies with the standard ISO 22241-1.
•Do not mix with water, fuel or additives.
•Never fill AdBlue in the diesel tank.
•Do not transport the refill bottle in the vehicle habitually. The bottle may develop a leak
following changes in temperature and damage and the AdBlue may damage the
vehicle interior.
NOTICE
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Leaking service fluids can pollute the environment. Spilt service fluids must be collected in
suitable containers and disposed of properly and with respect for the environment.
Washer fluid
Fig. 226 In the engine compartment: cap of washer fluid reservoir.
The windscreen washer fluid level should be checked regularly and topped up as necessary.
A filter can be found in the feed throat of the washer fluid reservoir. The filter keeps large dirt
particles away from the windscreen washer jets when refilling. The filter should only be removed for
cleaning. If the filter is damaged or is not present, dirt particles can enter the system and will block
the washer jets.
•Open the bonnet ⇒ In the engine compartment.
•The washer fluid reservoir is identified by the symbol on the cap ⇒ Fig. 226.
•Check whether there is enough windscreen washer fluid in the reservoir.
•To top up, mix clean water (not distilled wateryfZLWKDZDVKHUIOXLGUHFRPPHQGHGE\
Volkswagen ⇒. Observe the dilution instructions on the packaging.
•At low temperatures, add a special anti-freeze agent so that the fluid cannot freeze ⇒.
Capacities
The washer fluid reservoir has a capacity of between 3 and 5 litres depending on the vehicle
equipment level.
Unsuitable service fluids and consumables, and the incorrect use of these fluids and
consumables, can cause accidents, serious injuries, burns or poisoning.
•Service fluids must be kept in their original sealed container.
•Never store service fluids in empty food containers, bottles or any other non-original
containers as people finding these containers could drink them.
•Keep children away from all service fluids and consumables.
•Always read and follow the information and warnings on the service fluid packaging.
•When using products that give off harmful fumes, always work outdoors or in a well-
ventilated area.
•Never use fuel, turpentine, engine oil, nail varnish remover or other volatile fluids for
vehicle care. They are toxic and highly flammable. They could cause fires and
explosions.
WARNING
•Only use suitable service fluids for refilling. Never use the wrong service fluid. Failure
to observe this warning can result in serious malfunctions and engine damage.
•Optional equipment and other accessories in front of the air inlet reduce the cooling
effect of the coolant. The engine may overheat at high ambient temperatures and high
engine loads.
NOTICE

Before changing the engine oil, first find out where old oil can be disposed of properly near
you.
Used oil must be disposed of in accordance with regulations governing the protection of the
environment. Never dispose of old oil in locations such as gardens, woods, sewerage systems, on
streets and roads, or in rivers and waterways.
Engine oil consumption
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Engine oil consumption can vary from engine to engine and can change during the working life of
an engine.
The vehicle may consume up to 1.0 litre of engine oil per 2,000 km, depending on how you drive
and the conditions in which the car is used. In new vehicles, consumption is likely to be higher for
the first 5,000 km. The engine oil level must therefore be checked at regular intervals, preferably
when refuelling and before long journeys.
When the engine is working hard, the engine oil level should be kept within the upper permissible
area ⇒ Fig. 227Ⓒ, for instance during extended motorway journeys in summer, when towing a
trailer ⇒ Trailer towing, or when climbing mountain passes.
Checking the engine oil level and refilling the engine oil
Fig. 227 Engine oil level markings on the oil dipstick.
Fig. 228 In the engine compartment: engine oil filler cap (illustrationyf.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Key to ⇒ Fig. 227:
Engine oil level too high – follow the messages in the instrument cluster display or contact
a qualified workshop, if necessary.
If, in exceptional cases, you have to carry out an oil change yourself, please note the
following:
•Always wear eye protection.
•Always allow the engine to cool down completely to avoid burns.
•Avoid raising your arms when removing the oil drain plug with your fingers to help
prevent oil from running down your arm.
•Use a suitable container when draining the used oil. It must be at least large enough to
hold the entire quantity of engine oil required for refilling.
•Never store engine oil in empty food containers, bottles or any other non-original
containers as people finding these containers may not know that they contain engine
oil.
•Engine oil is toxic and must be stored out of the reach of children.
WARNING

Handling wheels and tyres
Fig. 235 Diagram showing how to swap wheels.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The wheels and tyres approved by Volkswagen have been carefully selected.
Rotating wheels front to rear
Regularly rotating the wheels as shown in the illustration ⇒ Fig. 235 is recommended to help
ensure that tyres wear evenly. All the tyres will then last for about the same time.
Volkswagen recommends having the wheels changed by a qualified workshop.
Avoiding damage to the rims and tyres
•Always drive over kerbs slowly and at a right angle.
•Check the tyre pressure regularly.
•Never exceed the top speed and load permitted for the tyres that are fitted ⇒ Tyre lettering and 
tyre type.
•Damaged or worn tyres must be replaced immediately ⇒ Tyre damage.
•Protect the wheels from contact with corrosive substances, including oils, lubricants, fuel and
brake fluid ⇒.
•Replace missing dust caps immediately.
Tyres that are older than 6 years
Tyres age through physical and chemical processes that can impair their function. Tyres that have
been stored unused for an extended period of time age quicker than tyres that are used all the time.
New tyres or tyres which are old, worn down or damaged cannot provide full levels of
vehicle control and braking power.
•Incorrect handling of wheels and tyres can reduce vehicle safety and cause accidents
and serious injuries.
•All four wheels must be fitted with radial tyres of the same type, size (rolling
circumferenceyfDQGWKHVDPHWUHDG.
•New tyres will have to be run in as they will initially have reduced grip and braking
effect. Drive particularly carefully for the first 600 km in order to prevent accidents and
serious injury.
•Check tyre pressures regularly when the tyres are cold, and always keep to the
specified value. If the tyre pressure is too low, it is possible that the tyre temperature
will increase to such an extent when driving that the tread peels off and the tyre bursts.
•Never drive with worn tyres or tyres that are damaged (cuts, cracks or blistersyf'ULYLQJ
with tyres in this condition can result in blown tyres, accidents and serious injuries.
Worn or damaged tyres must be replaced as soon as possible.
•Never exceed the top speed and load permitted for the fitted tyres.
•The effectiveness of the driver assist systems and brake support systems depends on
the tyre grip.
•If you notice unusual vibrations or if the vehicle pulls to one side when driving, stop
the car immediately and check the wheels and tyres for damage.
•In order to reduce the risk of losing control of the vehicle, and the risk of accident and
serious injury, never loosen the bolts on wheel rims with bolted on wheel rim rings.
•Do not use wheels or tyres if you do not know their history. Used wheels and tyres
could be damaged, even if the damage is not visible.
•Even if they have not been used, old tyres can suddenly lose pressure or burst,
especially at high speeds, and thus cause accidents and serious injuries. Avoid using
tyres that are more than six years old. If you have no alternative, drive slowly and with
extra care at all times.
WARNING

•Always check the tyre pressure when the tyres are cold. The specified tyre pressure applies to
cold tyres. Tyre pressure is always higher in warm tyres than it is in cold tyres. For this reason,
never reduce the pressure in warm tyres to adjust the tyre pressure.
•Always adjust the tyre pressure to the load level ⇒ Fig. 236\b.
•After adjusting the tyre pressures, always screw the caps onto the valves and observe the
information on the tyre monitoring system ⇒ Tyre monitoring systems.
•Always use the tyre pressure specified on the sticker. Never exceed the maximum tyre pressure
which is given on the sidewall of the tyre
Underinflated tyres will result in increased fuel consumption.
Tread depth and wear indicators
Fig. 238 Tyre tread: wear indicators.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Tread depth
In most countries, the minimum tread depth required by law is 1.6 mm (measured in the tread
grooves next to the tread wear indicatorsyfQRWHDQ\FRXQWU\VSHFLILFUHJXODWLRQV7KHW\UHVVKRXOG
have the same tread depth, at the minimum on each axle ⇒.
Observe any country-specific legal requirements relating to the permissible minimum tread depths
for winter and all-year tyres ⇒ Winter tyres.
Tread wear indicator in tyres
The tread wear indicators show if a tyre is worn down. The tyre must be replaced at the latest when
the tread depth is just down to the tread wear indicator.
The bottom of the tyre tread has 1.6 mm high tread wear indicators ⇒ Fig. 238. Markings on the
tyre sidewall indicate the position of the tread wear indicators ⇒ Fig. 238.
Incorrect tyre pressure may cause the tyre to suddenly lose pressure or burst while the
vehicle is in motion. This can cause serious accidents and fatal injuries.
•If the tyre pressure is too low, it is possible that the tyre temperature will increase to
such an extent when driving that the tread peels off and the tyre bursts.
•Fast speeds or overloading of the vehicle can cause overheating, sudden tyre damage
including tyre bursts and ripping of the tread surface and thus to a loss of control of
the vehicle.
•If the tyre pressure is too low, the tyres will wear prematurely and the car will not
handle well.
•Check tyre pressures regularly, at least once a month, and before every long journey.
•All tyres must have the correct tyre pressure to suit the vehicle load.
•Never reduce excess pressure when the tyres are warm.
WARNING
•When attaching the tyre pressure gauge, ensure that you do not position it at an angle
to the valve stem. This can damage the tyre valve.
•Always make sure the valve caps are completely screwed on while driving.
NOTICE