2021 VOLKSWAGEN UP! open gas tank

Driving a loaded vehicle
First read and observe the introductoryinformation and safety warnings⇒
Introduction
For good vehicle handling when driving a loaded vehicle, please observe the following:
•Stow all items of luggage securely ⇒ Stowing items of luggage.
•Accelerate carefully and gently.
•Avoid sudden braking and driving manoeuvres.
•Brake earlier than in normal driving.
•If applicable, heed the information about driving with a roof carrier ⇒ Roof carrier.
Vehicle-specific weight ratings
First read and observe the introductoryinformation and safety warnings⇒
Introduction
All data in the official vehicle documents take precedence over these data. All data in this manual
apply to the basic model. The vehicle data sticker in the service schedule and the official vehicle
documents show which engine is installed in your vehicle.
The values quoted here may differ if additional equipment is fitted, for different models or for special
vehicles.
The values for the kerb weight in the following table apply for the road-ready vehicle with driver
(75 kg), service fluids including fuel tank carrying 90% of its capacity and, if applicable, tools and
Driving with an unlocked or open tailgate can cause serious injuries.
•Always drive with the tailgate closed.
•Always stow all items in the luggage compartment securely. Loose objects can fall out of
the luggage compartment and injure other road users.
•Always drive carefully and ensure that you think ahead.
•Avoid any abrupt or sudden driving and braking manoeuvres as this can cause the open
tailgate to move unpredictably.
•Any objects protruding from the luggage compartment must be marked to ensure that they
are visible to other road users. Comply with legal regulations.
•Any objects protruding from the luggage compartment must never be held in position by
the tailgate.
•If it is necessary to drive with the tailgate open, all luggage racks and cargo stowed on the
rack must be removed from the tailgate.
WARNING
Poisonous exhaust fumes can enter the vehicle interior when the tailgate is open. This could
result in loss of consciousness, carbon monoxide poisoning, serious injury and accidents.
•Always drive with the tailgate closed in order to prevent toxic gases from entering the
vehicle.
•If exceptional circumstances require you to drive with an open tailgate, you must do the
following to reduce the quantity of toxic exhaust fumes that could enter the vehicle:
- Close the electric panorama sliding/tilting glass roof.
- Switch off air recirculation mode.
- Open all vents in the dash panel.
- Switch the blowers to the highest setting.
WARNING
The vehicle length and height are different when the tailgate is open.
NOTICE
Moving loads can severely impair the vehicle's stability and driving safety, which can cause
accidents and severe injuries.
•Secure objects properly to prevent them from sliding.
•Use suitable straps when securing heavy objects.
•Engage the rear seat backrests securely in an upright position.
WARNING

Vents
The vents ⇒ Fig. 114① should be left open to ensure that the vehicle interior is sufficiently heated,
ventilated and cooled.
•Press the vent ① to open it.
•Turn the panels to adjust the direction of the airflow.
•To ensure the best possible airflow to the side windows, open the individual air vent and turn to
the defrost position in which the air vent engages.
•To close the vents, push the panels backs.
Additional vents can be found in the middle of the instrument panel ⇒ Fig. 114②, in the footwells
and in the rear area of the vehicle interior.
Air recirculation mode
First read and observe the introductoryinformation and safety warnings⇒
Introduction
General notes
The air recirculation mode prevents outside air from entering the vehicle.
If the outside temperature is very high, the manual air recirculation mode should be activated for a
short time in order to cool the vehicle interior more quickly.
•If the air distribution control is set to , switch off the air recirculation mode ⇒.
Switching the air recirculation mode on and off
Switching on: push the slider ⇒ Fig. 113④ all the way to the right.
Switching off: push the slider ⇒ Fig. 113④ all the way to the left.
At the filling station
Filling the tank
 Introduction
This chapter contains information on the followingsubjects:
⇒ Indicator lamps and fuel gauge
⇒ Filling the tank with petrol
⇒ Filling the tank with natural gas
⇒ Capacities
⇒ Checks when filling the tank
The fuel cap is located at the rear right-hand side of the vehicle.
Additional information and warnings:
•Exterior views ⇒ Exterior views
•Fuel ⇒ Fuel
Do not place any food, medicine or any other heat-sensitive items in front of the vents. Heat-
sensitive food, medicine and other items could be either damaged or rendered useless.
NOTICE
Stale air can quickly cause tiredness and lack of concentration in the driver, which in turn can
cause collisions, accidents and serious injuries.
•Never use the air recirculation mode for an extended period as no fresh air will enter the
vehicle interior.
•If the cooling system is switched off, the windows can mist up very quickly in air
recirculation mode and reduce visibility considerably.
•Always switch off the air recirculation mode when it is not required.
WARNING
Do not smoke if the air recirculation mode has been selected. The smoke drawn into the
cooling system can leave a residue on the evaporator and the dust and pollen filter, producing
a permanent unpleasant odour.
NOTICE

Fig. 117 Open tank flap with tank cap attached to the holder
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Switch off the engine, ignition and the mobile telephone before filling the tank and leave them
switched off during the process.
Opening the tank cap
•The tank flap is at the rear of the vehicle on the right.
•Open the tank cap by the moulding to the rear.
•If necessary, fold the key bit out of the vehicle key ⇒ Vehicle key set.
•Insert the vehicle key in the tank flap lock and turn anticlockwise.
•Turn the tank cap anticlockwise and hook it on top of the tank flap ⇒ Fig. 117.
Filling the tank
The correct fuel grade for your vehicle is shown on a sticker on the inside of the tank flap ⇒ Fuel.
•The fuel tank is full when the (properly operated) automatic filler nozzle clicks off for the first
time ⇒.
•Do not continue filling the tank after it switches off. The expansion space in the fuel tank will
otherwise fill up and the fuel could spill out. This could also happen when the fuel warms up and
expands.
Closing the tank cap
•Turn the tank cap clockwise into the fuel filler neck until it perceptibly engages.
•Turn the vehicle key in the lock cylinder of the tank flap clockwise and pull it out.
•Close the tank flap. The tank flap must be flush with the vehicle bodywork.
Natural gas engines
Run the petrol tank empty every 6 months until the indicator lamp  lights up. This is necessary to
maintain necessary system function for petrol mode and fuel quality.
Fuels can pollute the environment. Any spilt service fluids must be cleaned up and disposed
of properly.
Filling the tank with natural gas
Fig. 118 With the tank flap open: tank cap ①, gas filler neck ②, gas filler neck seal ③
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Do not continue filling the tank once the filler nozzle stops automatically. The fuel tank could
be overfilled. This can cause fuel to splash out and overflow. This can cause fires, explosions
and serious injuries.
WARNING
Remove spilt fuel from all vehicle components as quickly as possible in order to avoid damage
to the wheel housing, tyres and vehicle paint.
NOTICE

Switch off the engine, ignition and the mobile telephone before filling the tank and leave them
switched off during the process ⇒.
Please read and follow the instructions for the natural gas refuelling system.
The vehicle is not constructed for use with Liquefied Natural Gas (LNG) ⇒. Before refilling with
natural gas check that you are using the correct fuel ⇒ Fuel.
Opening the tank cap
The gas filler neck is located under the tank flap next to the petrol filler neck.
•The tank flap is at the rear of the vehicle on the right.
•Open the tank cap by the moulding to the rear.
Filling the tank
At very high ambient temperatures, the overheating protection function for the natural gas refuelling
system could switch off automatically.
•Remove the cap ⇒ Fig. 118① from the gas filler neck ②.
•Place the filler coupling for the refuelling system on the gas filler neck. Please refer to natural
gas refuelling system operating manual.
•The fuel tank is full when the compressor for the refuelling system switches off automatically.
•To end the refuelling procedure press the stop button on the refuelling system.
Closing the tank cap
•Check whether seal ⇒ Fig. 118③ on the gas filler neck has slipped onto the filler coupling.
Place the seal back in the gas filler neck as necessary.
•Push the cap ① onto the gas filler neck.
•Close the tank flap. The tank flap must be flush with the vehicle bodywork.
The filling couplings for the natural gas refuelling systems can be of various different
designs. Please ask for assistance from trained personnel if you are unsure of how to use the
system.
Noises which you may hear while refuelling are normal and do not indicate that the system is
malfunctioning.
The natural gas system in your vehicle is suitable for use with small compressors (slow fill)
and large compressors (fast fill).
Capacities
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Fuel tank capacity
Petrol enginesapprox 35.0 l, of which 4.0 l reserve.
Natural gas engineNatural gas: approx. 11.0 kg of which reserve approx. 1.5 kg.
Petrol: approx. 10.0 l of which reserve approx. 5.0 l
Checks when filling the tank
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Checklist
Never carry out any work on the engine or in the engine compartment if you are not familiar with
the necessary procedures and the general safety requirements or if the correct operating
Natural gas is highly explosive and inflammable. Failure to refuel properly with natural gas
could result in accidents, serious burns and other injuries.
•Lock the fuel filler nozzle correctly before refuelling natural gas. Stop refuelling
immediately if you start to smell gas.
WARNING
Your vehicle is not suitable for use with Liquefied Natural Gas and must not be filled up or
driven with Liquefied Natural Gas. Liquefied Natural Gas can cause an explosion in the
natural gas tank and serious injuries as a consequence.
WARNING

Windscreen washer fluid level Windscreen wiper and washer
Engine oil level Engine oil
Engine coolant level Coolant
Brake fluid level Braking, stopping and parking
Tyre pressure Wheels and tyres
equipment, service fluids and unsuitable tools are not available ⇒ Preparation for working in the
engine compartment! The work should be carried out by a qualified workshop if you are
uncertain. Please ensure that the following are checked regularly, preferably every time you fill
the tank:
Vehicle lighting necessary for traffic safety:
- Turn signals
- Side lights, dipped beam headlights and main beam headlights
- Tail light cluster
- Brake lights
- Rear fog light ⇒ Lights
Information on changing bulbs ⇒ Changing bulbs.
Fuel
 Introduction
This chapter contains information on the followingsubjects:
⇒ Petrol
⇒ Natural gas
Different engines require different fuels. The factory-fitted sticker on the inside of the tank flap
indicates the fuel type that is required for your particular vehicle.
Volkswagen recommends using low-sulphur or sulphur-free fuels, to help reduce fuel consumption
and prevent damage to the engine.
If the engine is not running smoothly or begins to judder, this can indicate poor or inadequate fuel
quality, e.g. water in the fuel. If these symptoms appear, reduce the vehicle speed immediately and
drive to the nearest qualified workshop at medium engine speeds, avoiding high engine loading. If
these symptoms occur immediately after the vehicle has been refuelled, switch the engine off as
soon as it is safe to do so and seek expert assistance. This can help to prevent further damage.
Additional information and warnings:
•⇒BookletService schedule,
•Filling the tank ⇒ Filling the tank
•Engine management and exhaust system ⇒ Engine management system and exhaust
purification system
Petrol
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Petrol types
Vehicles with a petrol engine must be run on unleaded petrol in compliance with the European
standard EN 228 or DIN 51626-1 ⇒. Fuels with a maximum ethanol content of 10% (E10) can
be used for refuelling.
Petrol types are categorised according to their octane number, e.g. 91, 95, 98 or 99 RON (RON =
Research Octane Number). The vehicle may be filled with petrol that has a higher octane number
Incorrect handling of fuel can cause explosions, fire and serious burns and injuries.
•Fuel is highly explosive and inflammable.
•Never handle fuel near open flames, sparks or glowing matter (e.g. cigarettes).
•Keep naked flames, hot parts and sparks at a safe distance.
•Switch off your mobile telephone or two-way radio when dealing with fuel. Electromagnetic
radiation can generate sparks which can in turn start a fire.
•Avoid electrostatic discharge and electromagnetic radiation in the direct vicinity of fuels.
•Never spill fuel in the vehicle or in the luggage compartment.
•Comply with any relevant safety information and legislation concerning the handling of
fuels.
WARNING

The vehicle engine management will automatically adapt to the different natural gas qualities. Both
natural gas qualities can therefore be mixed in the fuel tank. You do not need to empty the tank
before refuelling with a different grade.
Natural gas
The vehicle can run on natural gas. Further information is available from your local Volkswagen
dealership.
Safe handling of natural gas
If you can smell gas or think there may be a leak in the natural gas system ⇒:
•Stop the vehicle immediately.
•Switch off the ignition.
•Open all the doors to fully ventilate the vehicle.
•Extinguish cigarettes immediately.
•Remove items that could cause sparks or fire from the vehicle or switch them off.
•Do not drive on if you can still smell gas.
•Seek expert assistance. Have the fault rectified.
Have the natural gas system checked regularly according to the service schedule by a
qualified workshop.
In the engine compartment
Preparation for working in the engine compartment
 Introduction
This chapter contains information on the followingsubjects:
⇒ Preparing the vehicle for working in the engine compartment
⇒ Opening and closing the bonnet
Always park the vehicle on a level and stable surface before carrying out any work in the engine
compartment.
The engine compartment of a motor vehicle is a hazardous area. Never carry out any work on the
engine or in the engine compartment if you are not familiar with the requisite procedures and
general safety requirements, or if you only have access to incorrect operating equipment, service
fluids, and unsuitable tools ⇒. The work should be carried out by a qualified workshop if you are
uncertain. Serious injuries can be caused if work is carried out incorrectly.
Additional information and warnings:
•Exterior views ⇒ Exterior views
•Windscreen wiper/washer ⇒ Windscreen wiper and washer
•Starting and stopping the engine ⇒ Starting and stopping the engine
•Brake fluid ⇒ Braking, stopping and parking
•Checks when filling the tank ⇒ Filling the tank
•Engine oil ⇒ Engine oil
•Engine coolant ⇒ Coolant
•Battery ⇒ Vehicle battery
•Accessories, modifications, repairs and renewal of parts ⇒ Accessories, modifications, repairs
and renewal of parts
Ignoring the smell of gas in the vehicle or when refuelling can cause serious injuries.
•Take any necessary action.
•Leave the area of risk.
•Contact the emergency services if necessary.
WARNING
Your vehicle is not suitable for use with Liquefied Natural Gas and must not be filled up or
driven with Liquefied Natural Gas. Liquefied Natural Gas can cause an explosion in the
natural gas tank and serious injuries as a consequence.
WARNING
Cleaning and maintenance

Practical tips
Frequently asked questions
If you suspect that there is a fault in the vehicle or if your vehicle has been damaged, read and
observe the following information before contacting a Volkswagen dealership or qualified
workshop. You may also find useful information in the index under the headings Things to note or
Checklist.
IrregularitySome possible causesPossible solution
Engine does not start.
Vehicle battery is discharged.
– Jump start the engine ⇒ Starting the
engine with jump leads.
– Recharge the vehicle battery
⇒ Vehicle battery.
An incorrect vehicle key is
being used.
Use a valid vehicle key ⇒ Vehicle key
set.
The fuel level is too low.Fill the tank ⇒ Filling the tank.
Vehicle cannot be locked
or unlocked with the
vehicle key.
– The battery in the vehicle
key is discharged.
– The vehicle key is too far
away from the vehicle.
– Replace battery ⇒ Vehicle key set.
– Move closer to the vehicle.
– Synchronise vehicle key ⇒ Vehicle
key set.
– Unlock or lock vehicle manually
⇒ Manual opening and closing.
Unusual noises.
Cold engine, brake assist
systems, electronic steering
column lock, auxiliary heater,
filling up with natural gas.
Refer to the index under entries for
Noises.
Unusual handling.
Assist systems are active.Refer to the index under entries for
Assist systems.
An incorrect tyre pressure is
being used.
Check tyre pressure ⇒ Wheels and
tyres.
Damage to the tyre or wheel.
Check the rims and tyres regularly for
damage ⇒ Wheels and tyres and
replace as necessary ⇒ Changing a
wheel.
The vehicle has no
vehicle jack, spare wheel
or breakdown set.
Equipment depends on type
of vehicle.
No direct solutions possible as it
depends on the equipment level.
Contact a Volkswagen dealership if
necessary ⇒ Vehicle toolkit.
The road ahead is not lit
up properly.
– Headlight has been masked
for driving on the left or on the
right.
– Headlight not adjusted
correctly.
– Bulbs have failed.
– Dipped beam headlight not
switched on.
– Mask the headlights accordingly for
driving on the left or right ⇒ Lights.
– Adjust headlight range ⇒ Lights.
– Change bulbs ⇒ Changing bulbs.
– Switch dipped headlights on
⇒ Lights.
Electrical consumers not
working.
Low vehicle battery charge.Recharge vehicle battery ⇒ Vehicle
battery.
Low fuel level.Fill the tank ⇒ Filling the tank.
Fuse blown.Check fuse and replace as necessary
⇒ Fuses.
Fuel consumption is
higher than indicated.
– Short distances driven.
– Uneven acceleration.
– Avoid driving short distances.
– Think ahead when driving.
– Accelerate evenly.
An electrical consumer is
switched on.
Switch off all consumers that are not
needed.
Fault in engine management
system.
Have the fault rectified ⇒ Engine
management system and exhaust
purification system.
Tyre pressure too low.Adjust the tyre pressure ⇒ Wheels
and tyres.
Driving in hilly regions.No direct solutions possible.
Driving with a heavy load.No direct solutions possible.
Driving at high engine speed.Select a high gear.
In an emergency
 Introduction
This chapter contains information on the followingsubjects:
⇒ Making you and your vehicle safe
⇒ First aid kit, warning triangle and fire extinguisher
Additional information and warnings: