2021 VOLKSWAGEN UP! overheating

Fault in the automated manual gearbox
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Emergency programme
There may be a fault in the system if warning and indicator lamps for the automated manual
gearbox light up in the vehicle cluster ⇒ Warning and indicator lamp. When certain faults occur, the
automated manual gearbox runs in an emergency programme. The vehicle can still be driven in the
emergency programme, but only at reduced speed and not in all gears.
With an automated manual gearbox it may then be the case that the vehicle can no longer be
driven in all gears.
In all cases the automated manual gearbox should be checked by a qualified workshop
immediately.
Overheating in the automated manual gearbox
The automated manual gearbox can overheat, for example if the vehicle regularly pulls off from the
starting position or in stop-and-go traffic. Overheating is indicated by a warning lamp displayed
in the instrument cluster. An acoustic warning may also be heard. Stop the vehicle and allow the
gearbox to cool down ⇒.
The vehicle does not move forwards or backwards even though a position
has been selected
If the vehicle will not move in the required direction, the system may have selected the position
incorrectly. Depress the brake pedal and reselect the position.
If the vehicle still does not move in the required direction, there is a system fault. Seek expert
assistance and have the system checked.
Gear-change indicator (manual gearbox)
First read and observe the introductoryinformation and safety warnings⇒
Introduction
In some vehicles, the instrument cluster will show which gear should be selected while the vehicle
is in motion to reduce fuel consumption.
DisplayMeaning
The current gear is optimal.
A higher gear is recommended.
A lower gear is recommended.
Rapid acceleration can cause loss of traction and skidding, particularly on slippery roads. This
can cause you to lose control of the vehicle, which can lead to accidents and serious injuries.
•Always adjust your driving style in accordance with the flow of traffic.
•The kickdown function or fast acceleration should only be used if the visibility, weather,
road and traffic conditions permit.
•You should never endanger other road users through the acceleration of your vehicle or
through your driving style.
WARNING
If you stop the vehicle on an incline, do not attempt to stop it from rolling back by depressing
the accelerator while a position is still selected. The automated manual gearbox could
overheat and be damaged.
NOTICE
•If the display indicates that the gearbox is overheating for the first time, the vehicle will
have to be parked safely or driven faster than 20 km/h (12 mph).
•If the lamp signal and acoustic warning are repeated approximately every 10 seconds, the
vehicle must immediately be parked safely and the engine switched off. Allow the gearbox
to cool down.
•In order to prevent damage to the gearbox, you should not drive on until the lamp goes out.
You should not pull away or drive the vehicle at very low speeds while the gearbox is
overheated.
NOTICE

to assist every time that there is a sudden change in the road surface quality. If a section of dry
road is suddenly covered with water, mud or snow, ESC will not be able to assist in the same
manner as on a dry road. If the vehicle aquaplanes (drives on a layer of water rather than on the
road surface), ESC will not be able to assist in steering the vehicle as the contact to the road
surface has been interrupted and it is therefore no longer possible to steer or brake the vehicle.
Always adapt your speed and driving style to suit visibility, weather, road and traffic conditions. ESC
cannot defy the laws of motion, improve the available power output, or keep the vehicle on the road
if insufficient care and attention on the part of the driver causes the vehicle to leave the road.
Instead, ESC increases the possibility of keeping the vehicle under control and, in extreme on-road
driving situations, it assesses the driver’s steering input and helps the vehicle to continue in the
required direction. If the vehicle is driving at a speed that leads it to leave the road before the ESC
can provide any kind of support, the ESC will be unable to provide any assistance.
The ABS, BAS, TCS and EDL systems are integrated into the ESC. The ESC is always on.
Anti-lock brake system (ABS)
The ABS prevents the wheels from locking when the brakes are applied up until the point where the
vehicle is nearly stationary and assists the driver in steering the vehicle and keeping it under
control. This means that the vehicle is less likely to spin, even when the brakes are depressed fully:
•Depress and hold the brake pedal with force. Do not take your foot off the brake pedal or
reduce the force on the brake pedal!
•Do not pump the brake pedal or reduce the pressure on the brake pedal!
•Steer the vehicle while the brake pedal is fully depressed.
•The ABS will switch off when the brake pedal is released or if the pressure on the brake pedal is
reduced.
If the ABS is taking corrective action, there is a pulsing movement in the brake pedal and some
noise. However, ABS will not necessarily guarantee shorter braking distances in all conditions. The
braking distance could even be longer when braking on gravel or on fresh snow covering an icy or
slippery surface.
Electronic brake pressure distribution system (EBD)
Every vehicle's centre of gravity moves forwards whenever the brake is operated. This means that
the rear wheels are in danger of locking due to the lower traction. The electronic brake pressure
distribution system controls the brake pressure for the rear wheels and thereby ensures the
optimum distribution of brake pressure between the front and rear axles. Under normal conditions,
the system will prevent the rear from breaking away if too much brake pressure if applied to the rear
wheels. The electronic brake pressure distribution system is included in the ABS' scope of
functions.
Brake Assist system (BAS)
The brake assist system can help to reduce the braking distance. The brake assist system
reinforces brake pressure hydraulically when the driver depresses the brake pedal quickly in an
emergency situation. As a result, full braking power is made accessible very quickly, brake pressure
is increased and the braking distance reduced. In this way, the ABS is activated more quickly and
more effectively.
Do not reduce the pressure on the brake pedal. The brake assist system will switch off the
hydraulic brake servo automatically when the brake pedal is released or if the pressure on the
brake pedal is reduced.
Traction Control System (TCS) or Traction Control (TC)
The TCS or TC reduces the engine output if wheelspin occurs and adapts the output to suit road
surface conditions. TCS or TC helps the car to start moving, accelerate and climb gradients in
unfavourable road conditions.
Electronic differential lock (EDL)
The EDL is available for normal driving on straight roads. EDL brakes the wheel that has lost
traction and distributes the driving force to the other drive wheel. To prevent the disc brake of the
braked wheel from overheating, the EDL cuts out automatically if subjected to excessive loads. The
EDL will switch on again automatically when the brake has cooled down.

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

•After altering the tyre pressures, ensure that the valve caps are screwed on.
The spare wheel or temporary spare wheel are filled to the highest tyre pressure permissible for
the vehicle.
Under-inflated tyres can contribute to an increase in fuel consumption.
Tread depth and wear indicators
Fig. 132 Tyre tread: wear indicators
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Tread depth
Difficult driving situations demand the deepest possible tread depth for the tyres and the same
tread depth for the tyres on the front and rear axles. This applies in particular for driving in winter
weather and cold temperatures and in wet conditions ⇒.
In most countries, the minimum tread depth required by law is 1.6 mm (measured in the tread
grooves next to the tread wear indicators). Observe any country-specific legal requirements.
Winter tyres lose a large degree of their effectiveness when the tread is worn down to a depth of
4 mm.
The tread depth of new tyres can vary according to type and manufacturer due to construction and
tread design.
Tread wear indicator in tyres
The original tyres on your vehicle have 1.6 mm high tread wear indicators running across the tread
⇒ Fig. 132. These wear indicators are positioned at set intervals around the tyre. Markings on the
tyre sidewall (for instance the letters TWI or other symbols) indicate the positions of the tread wear
indicators.
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 before the tread wear indicator.
Too high or too low a 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 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 or too high, the tyres will wear prematurely and the vehicle
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 shaft. This can damage the tyre valve.
•Missing valve caps, or valve caps that are not suitable or not screwed on properly, can
cause damage to the tyre valve. Always use valve caps that comply with the factory-fitted
valve cap specifications. Always screw on valve caps fully.
NOTICE

⇒ Catalytic converter
Additional information and warnings:
•Changing gear ⇒ Changing gear
•Filling the tank ⇒ Filling the tank
•Fuel ⇒ Fuel
•Engine oil ⇒ Engine oil
•Battery ⇒ Vehicle battery
•Information stored in the control units ⇒ Accessories, modifications, repairs and renewal of parts
•Tow-starting and towing ⇒ Tow-starting and towing
Indicator lamps
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Lit upPossible causeSolution
Engine management system fault
(Electronic Power Control).
The engine should be checked by a qualified
workshop as soon as possible.
Fault in catalytic converter.
Decrease speed. Drive carefully to the next
qualified workshop. The engine should be
checked.
FlashesPossible causeSolution
Misfiring, which damages the catalytic
converter.
Decrease speed. Drive carefully to the next
qualified workshop. The engine should be
checked.
Several warning and indicator lamps will light up briefly as a functional check when the ignition is
switched on. They will go out soon afterwards.
If the indicator lamps  or are lit up, fuel consumption may be higher, and engine
performance reduced.
Catalytic converter
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The catalytic converter is used for exhaust gas post-treatment and helps to reduce exhaust
emissions. To help ensure long-term functionality in the exhaust system and the catalytic converter:
•Use unleaded petrol only.
•Do not allow the fuel tank to run empty.
•Do not overfill engine oil ⇒ Engine oil.
•Do not tow-start the vehicle. Use jump leads ⇒ Starting the engine with jump leads.
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. If this happens,
unburnt fuel can enter the exhaust system and escape into the atmosphere. The catalytic converter
can also be damaged by overheating.
Even when the exhaust purification system is working perfectly, there may be a smell of
sulphur from the exhaust in some conditions. This depends on the sulphur content of the fuel being
used.
The components of the exhaust system become very hot. This can cause fires.
•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.
•Never apply additional underseal or anti-corrosion coatings to the exhaust pipes, catalytic
converters or heat shields.
WARNING
To avoid damage to your vehicle, always observe the indicator lamps and associated warning
texts.
NOTICE
If and when

•Insert the plug ⇒ Fig. 157⑨ into one of the vehicle's 12-volt sockets ⇒ Socket.
•Use the on/off switch ⇒ Fig. 157⑧ to switch on the air compressor.
•Run the compressor until the tyre pressure has reached 2.0 – 2.5 bar (29 – 36 psi / 200 –
250 kPa) ⇒. The maximum running time is 8 minutes⇒.
•Switch off the air compressor.
•If a pressure level of 2.0 – 2.5 bar (29 – 36 psi / 200 – 250 kPa) cannot be achieved unscrew
the tyre filler hose from the tyre valve.
•Drive (or reverse) the vehicle approximately 10 metres so that the sealing compound is more
evenly distributed in the tyre.
•Screw the tyre filler hose for the air compressor firmly back onto the tyre valve and inflate the
tyre again.
•If the required pressure still cannot be reached, the tyre is too badly damaged. The tyre cannot
be sealed with the breakdown set. Do not drive on. Seek expert assistance ⇒.
•Disconnect the air compressor and unscrew the tyre filler hose from the tyre valve.
•Drive the vehicle no faster than 80 km/h (50 mph) once a tyre pressure of 2.0 – 2.5 bar
(29 – 36 psi / 200 – 250 kPa) has been reached.
•Check the tyre pressure after driving for 10 minutes⇒ Test after driving for 10 minutes.
Test after driving for 10 minutes
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Reconnect the tyre filler hose ⇒ Fig. 157⑤ and check the tyre pressure on the tyre pressure
display ⑥.
1.3 bar (19 psi / 130 kPa) and lower:
•Do not drive on! The tyre cannot be sealed adequately with the breakdown set.
•Seek expert assistance ⇒.
1.4 bar (20 psi / 140 kPa) and higher:
•Set the tyre pressure back to the correct value ⇒ Wheels and tyres.
•Resume your journey to the nearest qualified workshop. Do not exceed a maximum speed of
80 km/h (50 mph).
•Have the damaged tyre replaced at the workshop.
Fuses
 Introduction
This chapter contains information on the followingsubjects:
⇒ Fuses in the vehicle
⇒ Changing a blown fuse
At the time of print we are unable to provide an up-to-date overview of the locations of the fuses for
the electrical consumers. This is because the vehicle is under constant development, because
fuses are assigned differently depending on the vehicle equipment level and because several
consumers may use a single fuse. You can get more information about the fuse layout from a
Volkswagen dealership.
The tyre filler hose and the air compressor can get hot during inflation.
•Protect your hands and skin from the hot components.
•Do not place the hot tyre filler hose or the hot air compressor on any inflammable
materials.
•Allow the device to cool down fully before stowing.
•If the tyre will not inflate to at least 2.0 bar (29 psi / 200 kPa), the tyre is too damaged. The
sealant is unable to seal the tyre. Do not drive on. Seek expert assistance.
WARNING
Switch the air compressor off after a maximum of 8 minutes to avoid overheating. Let the air
compressor cool down for a few minutes before switching it back on.
NOTICE
Driving with an unsealed tyre is dangerous as it can cause accidents and serious injuries.
•Do not carry on driving if the tyre pressure is 1.3 bar (19 psi / 130 kPa) or lower.
•Seek expert assistance.
WARNING