brake fluid VOLKSWAGEN UP! 2021 Owner´s Manual

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

Unintentional vehicle movements during service work can cause serious injury.
•Never work underneath a vehicle if it is not secured against rolling away. If you are
working underneath the vehicle while the wheels are on the ground, the vehicle must be
on a level, the wheels must be blocked and the vehicle key must be removed from the
ignition lock.
•If you have to work underneath the vehicle, use suitable stands to provide extra support
for the vehicle. The vehicle jack is not sufficient for this task and can fail, which can lead to
serious injuries.
•The start/stop system must have been deactivated.
WARNING
The engine compartment of any motor vehicle is a dangerous area. Serious injuries can be
sustained here.
•The utmost care and attention must be paid when carrying out any work and you must
follow the general safety rules. Never take any risks.
•Never do any work on the engine or in the engine compartment unless you know exactly
how to carry it out. If you are uncertain of what to do, the work should be carried out by a
qualified workshop. Serious injuries can result from work that has not been carried out
properly.
•Never open the bonnet if you see steam or coolant escaping from the engine
compartment. Hot steam or coolant can cause serious burns. Always wait until you can no
longer see or hear steam or coolant coming from the engine compartment.
•Always allow the engine to cool down before opening the bonnet.
•Hot parts of the engine or exhaust system can burn the skin.
•Before opening the bonnet once it has cooled down:
- Apply the handbrake fully and move the selector lever to position N or move the
manual gear lever to the neutral position.
- Remove the vehicle key from the ignition lock.
- Always keep children away from the engine compartment and never leave the
vehicle unattended.
•The engine cooling system is under pressure when the engine is hot. Never open the cap
of the coolant expansion tank when the engine is hot. Coolant may spray out and cause
serious burns and injuries.
- After cooling, turn the cap slowly and very carefully anticlockwise while exerting
some downwards pressure on the cap.
- Always protect the face, hands and arms from hot coolant or steam with a large,
thick cloth.
•When refilling, do not spill any service fluids on engine components or on the exhaust
system. The spilt service fluids can start a fire.
WARNING
High voltages in the electrical system can cause electric shocks, burns, serious injuries and
death!
•Never short circuit the electric system. The vehicle battery could explode.
•Please note the following guidelines to help reduce the risk of an electric shock and
serious injuries while the engine is running or being started:
- Never touch the electrical wiring of the ignition system.
WARNING

Park the vehicle on a level and stable surface.
Depress and hold the brake pedal until the engine has stopped.
Apply the handbrake firmly Braking, stopping and parking.
Select the neutral position or move the selector lever to N Changing gear.
Stop the engine and remove the vehicle key from the ignition Starting and stopping the
engine.
Allow the engine to cool sufficiently.
Children and other people should be kept well away from the engine compartment.
Ensure that the vehicle cannot roll away unexpectedly.
Service fluids leaks are harmful to the environment. So you should regularly check the
ground underneath your vehicle. If there are spots of oil or other fluids on the ground, the vehicle
should be inspected by a qualified workshop. Any spilt service fluids must be disposed of properly.
Preparing the vehicle for working in the engine compartment
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Checklist
The following steps should always be carried out in the specified order before working in the
engine compartment ⇒:
There are rotating components in the engine compartment that can cause serious injury.
•Never place your hand near or directly in the radiator fan. Touching the rotary blades can
result in serious injuries. The fan is temperature-controlled and can start automatically,
even if the engine has been switched off and the vehicle key has been removed from the
ignition lock.
•If any work has to be performed when the engine is started or with the engine running,
there is an additional, potentially fatal, safety risk from the rotating parts, such as the drive
belts, alternator, radiator fan, etc., and from the high-voltage ignition system. Always be
particularly careful.
- Always ensure that no body parts, jewellery, ties, loose items of clothing or long hair
can be caught up in rotating engine components. Before starting work, remove any
jewellery and ties, tie up long hair and pull clothes in tightly to avoid them getting
caught in the engine compartment.
- Always depress the accelerator carefully and never without due consideration. The
vehicle can start to move even if the handbrake is applied.
•Always ensure that you have not left any objects, such as cleaning cloths and tools, in the
engine compartment. Any forgotten items can cause malfunctions, engine damage and
fires.
WARNING
Operating fluids and some materials in the engine compartment are highly flammable and can
cause fires and serious injuries!
•Never smoke while working on the vehicle.
•Never work near naked flames or sparks.
•Never spill fluids onto the engine. They could ignite on hot engine components and hence
cause injuries.
•Please note the following when carrying out any work on the fuel system or the electrical
system:
- Always disconnect the vehicle battery.
- Never work in the direct proximity of heating systems, water heaters or any other
open flames.
•Always have a fully functional and tested fire extinguisher to hand.
WARNING
When refilling or changing operating fluids please ensure that the fluids are in the correct
container. Incorrect operating fluids can cause serious functional problems and engine
damage.
NOTICE

•Unscrew the cap carefully ⇒.
•Refill only new coolant according to the Volkswagen specification (⇒ Coolant specification) ⇒
.
•The coolant level must be between the marks on the expansion tank ⇒ Fig. 123. Do not fill up
over the top line of the marked area⇒!
•Close the cap tightly.
•If in an emergency you do not have access to the coolant of the required specification
(⇒ Coolant specification), do not use any other coolant additive. Instead, initially refill with
distilled water⇒ only. Then add the correct proportion of coolant additive as soon as
possible ⇒ Coolant specification.
Vehicle battery
 Introduction
This chapter contains information on the followingsubjects:
⇒ Warning lamp
⇒ Checking the electrolyte level of the vehicle battery
⇒ Charging, replacing, disconnecting and connecting the vehicle battery
The vehicle battery is a component of the electrical system in the vehicle.
Never carry out any work on the electrical system if you are not familiar with the necessary
procedures and the general safety requirements and only unsuitable tools are available ⇒. The
work should be carried out by a qualified workshop if you are uncertain. Volkswagen recommends
using a Volkswagen dealership for this purpose. Serious injuries can be caused if work is carried
out incorrectly.
Location of the vehicle battery
The vehicle battery is located in the engine compartment.
Hot steam or engine coolant can cause serious burns.
•Never open the bonnet if you can see or hear steam or engine coolant coming out of the
engine compartment. Always wait until no escaping steam or coolant can be seen or
heard.
•Always allow the engine to cool down completely before carefully opening the bonnet. Hot
components can burn the skin.
•Before opening the bonnet once it has cooled down:
- Apply the handbrake fully and move the selector lever to position N or move the
manual gear lever to the neutral position.
- Remove the vehicle key from the ignition lock.
- Always keep children away from the engine compartment and never leave the
vehicle unattended.
•The engine cooling system is under pressure when the engine is hot. Never open the cap
of the coolant expansion tank when the engine is hot. Coolant may spray out and cause
serious burns and injuries.
- Turn the cap slowly and very carefully anticlockwise while exerting some downward
pressure on the cap.
- Always protect the face, hands and arms from hot coolant or steam with a large,
thick cloth.
•When refilling, do not spill any service fluids on engine components or on the exhaust
system. The spilt service fluids can start a fire. In certain circumstances, the ethylene
glycol in the engine can catch fire.
WARNING
•Refill only with distilled water. All other types of water can cause corrosion in the engine
due to the chemical components contained therein. This can also lead to engine failure. If
any other type of water is refilled, the fluid in the engine cooling system should be
completely replaced immediately by a qualified workshop.
•Do not fill coolant above the top of the marked area ⇒ Fig. 123. Otherwise the excess
coolant will be pressed out of the cooling system when the engine is hot and could cause
damage.
•If a large amount of coolant has been lost, do not refill the coolant until the engine has
cooled completely. Heavy coolant loss is an indication of leaks in the engine cooling
system. The engine cooling system should be checked by a qualified workshop as soon as
possible. Failure to do so can result in engine damage.
•When refilling operating fluids, please ensure that the correct container is filled. The use of
incorrect operating fluids could result in serious malfunctions and engine damage!
NOTICE

The tyres and wheel rims are an essential part of the vehicle's design. The tyres and rims approved
by Volkswagen are specifically matched to the characteristics of the vehicle and make a major
contribution to good road holding and safe handling.
Avoiding damage to the tyres
•If you have to drive over a kerb or similar obstacle, drive slowly and at a right angle if possible.
•Inspect the tyres regularly for damage such as cuts, cracks or blisters.
•Remove foreign objects that are in the outer tyre tread and have not penetrated the inner
tyre⇒ Tyre damage.
•Always respond to any warning messages given by the tyre monitoring system.
•Damaged or worn tyres must be replaced immediately ⇒ Tyre damage.
•Regularly check the tyres for hidden damage ⇒ Tyre damage.
•Never exceed the top speed and load permitted for the tyres that are fitted ⇒ Tyre lettering.
•Protect the wheels, including the spare wheel, from contact with corrosive substances, including
oils, lubricants, fuel and brake fluid ⇒.
•Replace missing dust caps immediately.
Tyres with directional tread pattern
Tyres with directional tread pattern have been developed to roll in one direction only. An arrow on
the tyre sidewall indicates the direction of rotation on tyres with directional tread ⇒ Tyre lettering.
The direction of rotation must be adhered to. This is the only guarantee for optimum grip and helps
to avoid aquaplaning, excessive noise and wear.
If, however, the tyre is fitted in the opposite direction to the tread pattern, you must take more care
when driving as the tyre is now no longer being used according to its designation. This is
particularly important on wet roads. The tyres must be replaced as quickly as possible or be fitted
with the tread in the correct direction.
Rotating wheels front to rear
Regularly rotating the wheels as shown in the illustration ⇒ Fig. 130 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.
Tyres that are older than 6 years
Tyres age through physical and chemical processes that can impair their function. Tyres that are
stored unused for an extended period will harden and become brittle more quickly than tyres which
are in constant use.
Volkswagen recommends replacing tyres that are older than 6 years with new tyres. This also
applies to tyres, including the spare wheel, which appear to still be in good condition and whose
tread depth has not yet reached the minimum value stipulated by legislation ⇒.
The age of a tyre can be determined from the manufacturing date, which is a component of the tyre
identification number () ⇒ Tyre lettering.
Storing tyres
Mark tyres before you remove them to indicate the direction of rotation. This ensures you will be
able to mount them correctly when you replace them (left, right, front, rear). When removed, the
wheels or tyres should be stored in a cool, dry and preferably dark place. Do not store tyres
mounted on the rim vertically.
Any tyres not fitted on rims should be kept in suitable sleeves to protect against dirt and should be
stored vertically (standing on the tread).
Old tyres should be disposed of as required by legislation.
Corrosive liquids and other substances can cause visible and invisible damage to the tyres,
which can cause the tyre to burst.
•Always keep chemicals, oils, lubricants, fuel, brake fluid and other corrosive substances
away from the tyres.
WARNING
Old tyres – even if they have not been used – 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

Running-in
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Please follow the regulations concerning running-in new parts.
Running in a new engine
Any new engine has to be run in during the first 1,500 kilometres. During its first few hours of
running, the internal friction in the engine is greater than later on when all the moving parts have
bedded down.
The style of driving during the first 1,500 kilometres will also affect the engine quality. Even after
this time – and especially with a cold engine – drive the vehicle at moderate speeds in order to
reduce engine wear and to increase the mileage that the engine can cover. Do not drive at engine
speeds that are too low. Always shift down gear if the engine is not running smoothly. The
following applies up to 1,000 kilometres:
•Do not depress the accelerator fully.
•Do not drive the vehicle at more than 2/3 of the top engine speed.
From 1,000 to 1,500 kilometres, gradually increase driving performance to top speed and highest
engine speed.
Running in new tyres and brake pads
•New wheels and tyres ⇒ Wheels and tyres
•Information on the brakes ⇒ Braking, stopping and parking
If the engine is run in gently, the life of the engine will be increased and its oil consumption
reduced.
Accessories and parts
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Volkswagen recommends that you seek advice from a Volkswagen dealership before purchasing
accessories, spare parts or service fluids. For example, if the vehicle is to be retrofitted with
accessories or if parts have to be renewed. Volkswagen dealerships can recommend accessories,
parts and service fluids suitable for your requirements. They can also answer any questions you
might have regarding official regulations.
Volkswagen recommends that you only use approved Volkswagen accessories and Volkswagen
Genuine Parts. These parts and accessories have been specially tested by Volkswagen for
suitability, reliability and safety. And Volkswagen dealerships are qualified to install them correctly.
Although the market is constantly scrutinised, Volkswagen cannot assume responsibility for the
reliability, safety and suitability of products Volkswagen has not approved. Volkswagen can
therefore assume no responsibility for these parts, even if they have been approved by an official
testing agency or are covered by an official approval certificate.
Any retro-fitted equipment that has a direct effect on the vehicle and/or the way it is driven must be
approved by Volkswagen for use in your vehicle and bear the e mark (the European Union's
authorization symbol). These devices include cruise control systems or an electronically controlled
suspension.
Any additional electrical components fitted that do not serve to control the vehicle itself must bear
the mark (manufacturer conformity declaration in the European Union). Such devices include
refrigerator boxes, laptops and ventilator fans.
Unsuitable spare parts and accessories, incorrectly carried out work, modifications and
repairs can lead to damage to the vehicle and cause accidents and serious injuries.
•Volkswagen strongly recommends that you only use approved Volkswagen accessories
and Volkswagen Genuine Parts. These parts and accessories have been specially tested
by Volkswagen for suitability, reliability and safety.
•Repairs and modifications to your vehicle should only be carried out by a qualified
workshop. Qualified workshops have the necessary tools, diagnostic equipment, repair
information and qualified personnel.
•Never fit parts to your vehicle that are in any way different from the factory-fitted parts.
•Never secure or mount objects such as drink holders or telephone holders on or next to
the airbag covers or within the deployment zone of the airbag.
•Only use rim/tyre combinations that have been approved by Volkswagen for your vehicle
type.
WARNING
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