key battery VOLKSWAGEN UP! 2021 Owner´s Manual

•Depress the clutch pedal to restart the engine.
Important preconditions for automatic engine switch-off
•The driver is wearing their seat belt.
•The driver door is closed.
•The bonnet is closed.
•A minimum engine temperature has been reached.
•The vehicle has been moved since the engine was last switched off.
•The defrost function of the air conditioning system is not switched on.
•The charging state of the vehicle battery is sufficient.
•The temperature of the vehicle battery is not too low or too high.
•The vehicle is not on a steep incline.
•Reverse gear is not engaged.
Conditions for an automatic restart
The engine can start automatically under the following conditions:
•If the vehicle rolls on.
•If the voltage of the vehicle battery falls.
Conditions that make a key start necessary
The engine has to be started manually with the vehicle key in the following conditions:
•If the driver unfastens their seat belt.
•If the driver door is opened.
•If the bonnet is opened.
Switching the start/stop system on and off
•Press the button in the centre console ⇒ Fig. 103.
•If start/stop system has been deactivated, the indicator lamp in the button lights up.
If the start/stop system has switched the engine off, the engine will start again as soon as the
system has been switched off manually with the button.
In some cases, it will be necessary to restart the engine manually with the vehicle key. Take
note of the corresponding indicator lamp in the instrument cluster.
Hill Hold Assist
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The Hill Hold Assist function actively holds the vehicle when pulling away on an incline.
The Hill Hold Assist function is automatically activated if the following
conditions are met
Points 1 to 3 must be fulfilled at the same time:
Manual gearboxAutomated manual gearbox
1.On an incline, the stationary vehicle must be held in position with the footbrake until the
vehicle starts moving.
2.The engine is running smoothly.
3.
Fully depress the clutch pedal and move the
gear stick to the 1st gear position if you want
to drive forwards up a hill or to the R position
if you want to reverse up a hill.
Position D is selected when driving forwards
up an incline or position R is selected for
driving in reverse up an incline.
The brake servo and the electromechanical steering will not function if the engine is switched
off.
•Never allow the vehicle to roll if the engine is switched off.
•The start/stop system must be switched off 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
vehicle battery can be damaged.
NOTICE

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

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:

The vehicle battery will discharge if the hazard warning lights are left on over a long period of
time – even when the ignition is switched off.
If you brake hard at speeds over approximately 80 km/h (50 mph), the brake lights will flash
to warn the traffic behind. If you then continue to brake, the hazard warning lights will be switched
on automatically at speeds under approximately 10 km/h (6 mph). The brake light will light up
continuously. Once the vehicle starts to accelerate, the hazard warning lights will switch off again.
First aid kit, warning triangle and fire extinguisher
Fig. 141 In the luggage compartment: warning triangle stowage compartment under the floor
covering
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Warning triangle
In some vehicle models, a warning triangle like the one shown may be stowed in a compartment in
the luggage compartment under the floor covering ⇒ Fig. 141.
First aid kit
The first aid kit must comply with legal requirements. Comply with the expiry dates of the contents.
Fire extinguisher
A fire extinguisher may be located in a holder in the footwell in front of the front passenger seat.
The fire extinguisher must comply with the valid legal requirements. It must be fully functional and
checked regularly. See the test certificate on the fire extinguisher.
Manual opening and closing
 Introduction
This chapter contains information on the followingsubjects:
⇒ Locking or unlocking the driver door and front passenger door manually
⇒ Locking the front passenger door and rear doors manually
⇒ Unlocking the tailgate manually
If the vehicle key or central locking system fails, the doors and tailgate can be locked and, to a
certain extent, unlocked manually.
Additional information and warnings:
Ignoring any of the items on this important safety checklist can lead to accidents and severe
injuries.
•Always follow the instructions in the checklist and observe the general safety procedures.
WARNING
The components of the exhaust system become very hot. This can cause fires and serious
injuries.
•Park the vehicle so that no part of the exhaust system can come into contact with any
inflammable material underneath the vehicle, e.g. dry grass, fuel.
WARNING
In the event of a sudden driving or braking manoeuvre or accident, loose objects can be flung
though the vehicle and cause severe injuries.
•Always secure or stow the fire extinguisher, high-visibility waistcoat, first aid kit and
warning triangle safely in the vehicle.
WARNING

⇒ Fitting the front towing eye
⇒ Driving tips when towing
Observe any legal requirements when towing or tow-starting.
For technical reasons, vehicles with a discharged battery must not be tow-started.
For technical reasons, vehicles with an automated manual gearbox must not be tow started
unless it has been ascertained that the gearbox is in position N⇒ When a vehicle with an
automated manual gearbox has to be towed:.
Towing a vehicle when the engine is switched off and the ignition is switched on discharges the
vehicle battery. In some vehicles battery charge level, the drop in voltage can be large enough after
just a few minutes that electrical consumers in the vehicle will no longer function, e.g. the hazard
warning lights.
Additional information and warnings:
•Exterior views ⇒ Exterior views
•Changing gear ⇒ Changing gear
•Engine management system and exhaust purification system ⇒ Engine management system
and exhaust purification system
•Starting the engine with jump leads ⇒ Starting the engine with jump leads
You will not be able to fit a towing eye onto the rear bumper. The vehicle is not suited for
towing other vehicles.
Notes on tow-starting
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Vehicles should not be tow-started wherever possible. Use jump leads to start the engine
instead⇒ Starting the engine with jump leads.
For technical reasons, the following vehicles cannot be tow-started:
•If the vehicle battery has discharged, the engine control unit will not function properly.
However, if the vehicle still has to be tow-started (manual gearbox):
•Engage 2nd or 3rd gear.
•Keep the clutch pressed down.
Never tow a vehicle that has no power supply.
•Never remove the key from the ignition. This could cause the steering lock to engage
suddenly. You will no longer be able to steer the vehicle. This can lead to a loss of control
of the vehicle, accidents and serious injuries.
•If the power supply to the towed vehicle is disconnected, stop towing immediately and
seek expert assistance.
WARNING
If a vehicle is being towed, the vehicle handling and braking effect will change significantly.
Please note the following in order to reduce the risk of an accident or serious injuries:
•Notes for the driver of the towed vehicle:
- You will need to depress the brake pedal more vigorously than normal as the brake
servo is not working. Always be careful not to drive into the vehicle that is pulling your
vehicle.
- You will need to turn the steering wheel more vigorously as the power-assisted
steering function is not working.
•Notes for the driver of the towing vehicle
- Accelerate carefully and gently.
- Avoid sudden braking and driving manoeuvres.
- Brake earlier than normal by pressing lightly on the brake pedal.
WARNING
•Remove and install the cover and the towing eye carefully so as to avoid damage to the
vehicle, e.g. the paintwork.
•Unburnt fuel can enter the catalytic converter and damage it while the vehicle is being
towed.
NOTICE