2021 AUDI A4 Pre sense

differential wheel bolt torque towing capacity keyless service reset oil dipstick

Page 148 of 304

AUDI A4 2021 Owner´s Manual Driver assistance

— Swerve assist does not react to pedestrians,
animals, crossing objects, and objects not
detected as vehicles.

Gi) Tips
— System functions may not be available

Driver assistance

— Swerve assist does not react to pedestrians,
animals, crossing objects, and objects not
detected as vehicles.

Gi) Tips
— System functions may not be available if the
ESC is limited or switched off, or if there is a
malfunction.
— An indicator in the instrument cluster will
inform you when there is an intervention.
Turn assist
Applies to: vehicles with turn assist
When turning left), turn assist can help to re-
duce the risk of a collision with an oncoming ve-
hicle by using braking action to keep your vehicle
in its lane. The function is only available when
the turn signal is turned on and at speeds up to
approximately 6 mph (10 km/h).

ZA WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
— The turn assist does not react to pedes-
trians, animals, crossing objects, and ob-
jects not detected as vehicles.
@) Tips
— System functions may not be available if the
ESC is limited or switched off, or if there is a
malfunction.

— An indicator in the instrument cluster will
inform you when there is an intervention.
PNM lm e es)
Applies to: vehicles with Audi pre sense
You can switch Audi pre sense and the associated
systems on or off, or adjust them individually.
The adjustment options depend on the vehicle
equipment.

2) When making a right turn in countries with left-hand drive
vehicles.
2) Incertain countries
146
> Applies to MMI: Select on the home screen: VE-
HICLE > Driver assistance > Audi pre sense.
Setting the prewarning
You can adjust the warning time for the prewarn-
ing”) individually (Early/Medium/Late) or switch
the prewarning off.
Set the warning time for the early warning to
Early at first. If you feel that the prewarnings ap-
pear too early, then set the warning time to Me-
dium. The Late warning time should only be set
in special circumstances.
(i) Tips
— If Audi pre sense is switched off, it switches
on again automatically once the ignition is
switched on again).
— Switch Audi pre sense off when you are not
using public streets, when loading the vehi-
cle onto a vehicle carrier, train, ship, or oth-
er type of transportation, or when towing
the vehicle. This can help to prevent an un-
desired intervention from the Audi pre
sense system.
— Certain settings are automatically stored
and assigned to the remote control key be-
ing used.
Applies to: vehicles with Audi pre sense
re) or is displayed when there is a malfunc-
tion, the Audi pre sense functions may be un-
available or may be limited.
A message that indicates the cause and possible
solution
may appear with some displays. The
weather conditions may be too poor or a sensor
may be covered. Bring the vehicle to a full stop,
switch the ignition off, and clean the area in front
of the sensors > page 119.
If the message still appears after switching the
ignition on again, have an authorized repair facili-
ty correct the malfunction as soon as possible.

Page 272 of 304

AUDI A4 2021 Owner´s Manual Emergency assistance

Tow bar and towing cable
The vehicle can be towed with a tow bar or tow-
ing cable. Both drivers should be familiar with
the special considerations when towing, especial-

Emergency assistance

Tow bar and towing cable
The vehicle can be towed with a tow bar or tow-
ing cable. Both drivers should be familiar with
the special considerations when towing, especial-
ly when using a towing cable.
Always make sure the traction force does not ex-
ceed the permitted level and there are no shock
loading conditions. There is always the risk of the
coupling becoming overloaded when driving off-
road.
For the most safety and security, drive with a tow
bar. You should use a towing cable only if a tow
bar is not available. Use a towing cable made of
synthetic elastic cable similar elastic material.

ZA\ WARNING
— Towing highly increases the risk of an acci-
dent, for example from colliding with the
towing vehicle.
— To reduce the risk of an accident, do not al-
low anyone to remain inside the vehicle
when it is being transported by a tow truck
or a special transporter.

@) Note
— If normal towing is not possible, for exam-
ple if the transmission is faulty or if the
towing distance is greater than 30 miles
(50 km), then transport the vehicle on a
special carrier.
— If the vehicle is towed by a tow truck at the
axle that is not permitted, this can cause se-
vere damage to the transmission.
— The vehicle must not be tow started for
technical reasons.
G) Tips
— If the power supply is interrupted, then it
will not be possible to move the selector
lever out of the "P" position. The parking
lock must be released using the emergency
release before towing the vehicle
=> page 100.
— Switch Audi pre sense* off > page 146 when
loading the vehicle onto a vehicle carrier,
train, ship,
or other type of transportation,
270
or when towing the vehicle. This can prevent
an undesired intervention from the pre
sense* system.
— Follow the local legal regulations for tow-
ing.
Read and follow the important information under
=> page 269.
Preparations
> Only secure the towing cable or tow bar at the
designated towing loop > page 271.
> Make sure the towing cable is not twisted. Oth-
erwise it could disconnect from the towing loop
while towing.
> Switch the emergency flashers on in both
vehicles > page 53. However, do not do this if it
prohibited by law.
Towing vehicle (front)
> Only start to drive when the towing cable is
taut.
> Press the brake pedal very carefully.
> Avoid sudden braking or driving maneuvers.
Vehicle being towed (rear)
» Make sure the ignition is switched on so that
the steering wheel is not locked and so that you
can use the turn signals, the horn, and the
windshield wipers if needed > A\.
> Switching it off before the vehicle has stopped
may impair the function of the brake booster
and power steering. You would then need to
use more force to steer and brake the vehicle.
> Release the parking brake > page 106.
> Select the “N” selector lever position.
> Make sure the towing cable is always taut.

ZA\ WARNING
— Never tow a vehicle using a tow bar or tow-
ing cable if the vehicle does not have electri-
cal power.
— If the vehicle runs out of power while it is
being towed, stop towing the vehicle imme-
diately and consult an authorized Audi deal-

er or qualified repair facility.

Page 284 of 304

AUDI A4 2021 Owner´s Manual Accessories and technical changes

Usually maintenance and repair work requires
special tools, measuring devices, and other
equipment that is available to trained vehicle
technicians in order to

Accessories and technical changes

Usually maintenance and repair work requires
special tools, measuring devices, and other
equipment that is available to trained vehicle
technicians in order to help ensure that your vehi-
cle and all of its systems operate correctly, relia-
bly, and safely. Performing work on the vehicle
incorrectly can impair the operation and reliabili-
ty of your vehicle and may void one or more of
your vehicle's warranties.
Technical Modifications
Interference with electronic components, their
software, the wiring, and data transfer may cause
malfunctions. Because of the way electronic com-
ponents are interconnected, such malfunctions
can also impair systems that are not directly in-
volved. This means that you risk both a substan-
tial reduction in the operational safety of your ve-
hicle and increased wear of vehicle components.
Some convenience functions, such as the conven-
ience turn signal function, individual door open-
ing function, and displays, can be reprogrammed
using special workshop equipment. If functions
are reprogrammed, the information and descrip-
tions about these functions in this Owner's Man-
ual may no longer apply to the changed func-
tions. Audi recommends that an authorized Audi
dealer or authorized Audi Service Facility perform
and verify any reprogramming procedures.

— Never perform any work in the engine com-
partment unless you know exactly how to
carry out the job and have the correct tech-
nical information and the correct tools.
— If you are uncertain about what to do, have
the work performed by an authorized Audi
dealer, an authorized Audi Service Facility,
or another qualified workshop. Serious per-
sonal injury may result from improperly per-
formed work.

ZA\ WARNING
Maintenance work, repairs, or technical modi-
fications to the vehicle (such as installing ad-
ditional equipment) that is not performed
correctly can cause serious injuries and in-
crease the risk of an accident.

Z\ WARNING
The engine compartment in any motor vehicle
is a potentially dangerous area and can cause
serious personal injury.
— Always use extreme caution when doing any
work in the engine compartment. Always
follow commonly accepted safety practices
and use common sense. Never risk personal

injury.

282
@) Note
— Maintenance work, repairs, or technical
modifications to the vehicle (such as instal-
ling additional equipment) that is not per-
formed correctly can cause vehicle damage.
— If emergency repairs must be performed,
take your vehicle to an authorized Audi deal-
er or authorized Audi Service Facility as soon
as possible.
— Audi is not liable for damage to the vehicle
resulting from failure to comply with these
guidelines.
@) For the sake of the environment
— Regular maintenance can help protect the
environment.
— Technical modifications to the vehicle can
have a negative impact on fuel consumption
and vehicle emissions.
@) For the sake of the environment
Certain components in your vehicle such as
undeployed airbag modules, pretensioners
and remote control batteries may contain Per-
chlorate Material - special handling may ap-
ply, See www.dtsc.ca.gov/hazardouswaste/
perchlorate. When the vehicle or parts of the
restraint system including airbag modules
and safety belts with pretensioners are scrap-
ped, all applicable laws and regulations must
be observed. Your authorized Audi dealer is
familiar with these requirements and we rec-
ommend that you have your dealer perform
this service for you.

Page 298 of 304

AUDI A4 2021 Owner´s Manual Index

Parking lock
Manually releasing.............00000- 100
also refer to Gears... 6... eee e eee eee 97
Partition W@t sca < ssces v enees s aren ase 86, 87
Pass-through... .... cc eee cence

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