2021 VOLKSWAGEN UP! four wheel drive

The ESC or the TCS/TC can only function properly if all four wheels have the same tyres.
Any differences in the rolling radius of the tyres can cause the system to reduce engine power
unexpectedly.
If the ABS fails, the ESC, TCS, TC and EDL will also cease to function.
Control processes running in the systems described may cause operating noises.
Brake fluid
Fig. 101 In the engine compartment: cap on the brake fluid container
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Brake fluid will gradually absorb water from the surrounding air. The brake system will be damaged
if there is too much water in the brake fluid. The boiling point of the brake fluid is also considerably
reduced by the water content. Heavy use of the brakes may cause a vapour lock in the brake
system if the water content is too high. Vapour locks reduce levels of braking power, considerably
increase braking distance and can even cause the brake system to fail completely. Your own safety
and that of other road users depends on having a brake system that functions properly at all times
⇒.
Brake fluid specification
Volkswagen has developed a brake fluid that has been optimised for the brake system in the
vehicle. To ensure optimal operation of the brake system, Volkswagen recommends the use of
brake fluid compliant with VW standard 501 14.
Driving fast on icy, slippery or wet roads can lead to a loss of control of the vehicle and could
cause serious injury to the driver and passengers.
•Adapt your speed and driving style to suit visibility, weather, road and traffic conditions. Do
not let the extra safety afforded by the brake assist systems ABS, BAS, EDL, TCS, TC and
ESC tempt you into taking any risks when driving.
•The brake assist systems cannot defy the laws of motion. Slippery and wet roads will
remain dangerous, even when the ESC and other systems are active.
•Driving too fast on wet roads can cause the wheels to lose contact with the road surface
and aquaplane. A vehicle cannot be braked, steered or controlled once it has lost contact
with the road surface.
•Brake assist systems cannot prevent an accident if, for example, you are driving too close
to the vehicle in front or are driving too fast for the individual situation.
•Although the brake assist systems are very effective and can help to control the vehicle in
difficult driving situations, please always remember that the driving stability of the vehicle
depends on the tyre grip.
•When accelerating on a slippery surface, for example on ice and snow, press the
accelerator carefully. The wheels can spin even with active brake assist systems and this
can lead to a loss of control of the vehicle.
WARNING
ESC will be considerably less effective if other components and systems that affect driving
dynamics are not serviced correctly or are not functioning properly. This also applies, but not
exclusively, to the brakes, tyres and other systems that have already been named.
•Please always note that modifications and changes to the vehicle can affect the function of
the ABS, BAS, TCS, TC, EDL and ESC.
•Alterations to the suspension system or the use of non-approved wheel and tyre
combinations can affect the function of ABS, BAS, TCS, TC, EDL and ESC and reduce
their effectiveness.
•Suitable tyres are also crucial if ESC is to function optimally ⇒ Wheels and tyres.
WARNING

proper facilities for disposing of the old tyres. Volkswagen recommends using a Volkswagen
dealership for this purpose.
Additional information and warnings:
•Transporting ⇒ Driving notes
•Braking, stopping and parking ⇒ Braking, stopping and parking
•Cleaning and caring for the vehicle exterior ⇒ Caring for and cleaning the vehicle exterior
•Consumer information ⇒ Consumer information
•Vehicle toolkit ⇒ Vehicle toolkit
•Hubcaps ⇒ Hubcaps
•Changing a wheel ⇒ Changing a wheel
•Breakdown set ⇒ Breakdown set
For technical reasons, it is not generally possible to use the wheels from other vehicles. This
can also apply to wheels of the same vehicle type. Refer to the vehicle documentation and ask a
Volkswagen dealership if necessary.
Handling wheels and tyres
Fig. 130 Diagram showing how to swap wheels
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The tyres are the most used and most underestimated parts of a vehicle. Tyres are very important
as the narrow tyre surfaces are the only contact between the vehicle and the road.
The service life of tyres is dependent on tyre pressure, driving style handling and fitting.
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
circumference) and the same tread.
•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 and always keep to the specified tyre pressure value. 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.
•Never drive with worn tyres or tyres that are damaged (cuts, cracks or blisters). Driving
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 assist 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 rims with bolted on 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

Rims
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The design of the wheel bolts is matched to the rims. If different rims are fitted, the correct wheel
bolts with the right length and correctly shaped bolt heads must be used. This ensures that the
wheels are fitted securely and that the brake system works properly ⇒ Changing a wheel.
For technical reasons, it is not generally possible to use the wheels from other vehicles. This can
also apply to wheels of the same vehicle type.
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.
Wheel bolts
Wheel bolts must always be tightened with the correct tightening torque ⇒ Changing a wheel.
Rims with bolted-on rings
Rims with bolted-on rings consist of several components. These components are fastened using
special bolts and special fastening technology. This ensures that the wheel functions properly, does
not leak, remains safe and runs true. For this reason, damaged rims should be replaced. They may
only be repaired by a qualified workshop. Volkswagen recommends using a Volkswagen dealership
for this purpose ⇒.
Rims with bolted-on trims
Rims may have removable trims that are attached to the rim with self-locking bolts. Damaged trims
may only be repaired by a qualified workshop. Volkswagen recommends using a Volkswagen
dealership for this purpose ⇒.
Rims identification
In some countries, new rims are legally required to contain certain specifications on them.
Depending on the country the following specifications can appear on the rims:
•Seal of conformity
•Rim size
•Name of manufacturer or brand name
•Date manufactured (month / year)
•Country of origin
•Production number
•Raw materials batch number
•Product code
New wheels and tyres
First read and observe the introductoryinformation and safety warnings⇒
Introduction
New tyres
•Drive particularly carefully for the first 600 km with new tyres as the tyres have to be run in.
Tyres that have not been run in have reduced grip ⇒ and braking effect ⇒.
•All four wheels must be fitted with radial tyres of the same type, size (rolling circumference) and
the same tread.
The use of unsuitable or damaged rims can impair vehicle safety and cause accidents and
serious injury.
•Only use rims that have been approved for the vehicle.
•Check the rims regularly for damage and replace as necessary.
WARNING
Incorrect loosening and tightening of the bolts on rims with bolted-on rings can cause
accidents and serious injury.
•Never remove the bolts on rims with bolted-on rings.
•All work on rims with bolted-on rings must be carried out by a qualified workshop.
Volkswagen recommends using a Volkswagen dealership for this purpose.
WARNING

Tyre lettering (example)Meaning
granted approval. This is followed by the number of the type
approval certificate.
DOT BT RA TY5 1709
Tyre identification number (TIN – may be on the inner side of
the wheel) and manufacturer date:
DOT
The tyre complies with the legal requirements of the
USA Department of Transportation, responsible for tyre
safety standards.
BTCode identifier of the factory that manufactured the
tyre.
RATyre manufacturer's data on tyre size.
TY5Manufacturer's tyre characteristics.
1709Manufacture date: 17th week in 2009.
TWIIndicates the position of the tread wear indicator ⇒ Tread depth
and wear indicators.
Made in GermanyCountry of manufacture.
MAX LOAD 615 KGUS load data for the maximum load per wheel.
MAX INFLATION 350 KPA
(51 PSI)US limitation for the maximum air pressure.
SIDEWALL 1 PLY RAYONData on tyre sub-construction components:
1 layer of rayon (artificial silk).
TREAD 4 PLIES
1 RAYON + 2 STEEL +
1 NYLON
Data on the tread surface components:
In the example there are four layers under the tread surface:
1 layer of rayon, 2 steel belt layers and 1 nylon layer.
Information for the end user concerning comparative values for specified basic tyres
(standardised test procedure)⇒ Consumer information:
TREADWEAR 220Relative life expectancy for the tyre, with reference to a US-
specific standard test.
TRACTION AWet braking response of the tyre (AA, A, B or C).
TEMPERATURE ATemperature stability of the tyre at higher test speeds (A, B or
C).
Any other characters are internal codes used by the tyre manufacturer or are country-specific
codes, e.g. for Brazil or China.
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. The direction of
rotation must be adhered to. This guarantees 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.
Tyre load
The load capacity index indicates how many kilograms can be loaded onto an individual tyre (tyre
load).
78425 kg81462 kg83487 kg85515 kg87545 kg91615 kg
Speed index
The speed index indicates the maximum permitted speed that may be driven when particular
wheels are fitted.
Pmax. 150 km/h (93 mph)Qmax. 160 km/h (99 mph)Rmax. 170 km/h (106 mph)Smax. 180 km/h
(112 mph)Tmax. 190 km/h (118 mph)Umax. 200 km/h (124 mph)Hmax. 210 km/h (130 mph)Vmax.
240 km/h (149 mph)Zover 240 km/h (149 mph)Wmax. 270 km/h (168 mph)Ymax. 300 km/h
(186 mph)
Some tyre manufacturers use the code ZR for tyres with a highest permitted speed of over
240 km/h (149 mph).
The TIN is the tyre serial number.
Winter tyres
First read and observe the introductoryinformation and safety warnings⇒
Introduction
In winter road conditions, winter tyres will considerably improve the car's handling. The design of
summer tyres (width, rubber compound, tread pattern) gives less grip on ice and snow. Volkswagen
urgently recommends the use of winter tyres or all-year tyres on all four wheels of the vehicle,
particularly if winter conditions are expected on the roads. Winter tyres will also improve the braking
response of the vehicle and will help to reduce braking distances in winter weather. Volkswagen
recommends that winter tyres be fitted to the vehicle at temperatures below +7°C (+45°F).
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