Service AUDI A6 2020 Owner's Manual

Sitting correctly and safely

Sitting correctly and
safely
Correct passenger
seating position
General information
As the driver, you are responsible for making sure
every passenger is sitting correctly in their seat
and maintaining this seating position while driv-
ing. Make sure that:
— Every passenger in the vehicle has adjusted his
or her seat correctly > page 60
— The steering wheel is adjusted correctly
=> page 63
— The mirrors are adjusted so that there is a suffi-
cient view of the area around the vehicle
=> page 53
— Every passenger in the vehicle has his or her
head restraint adjusted correctly > page 64
— Every passenger in the vehicle has his or her
safety belt fastened correctly > page 65
— The activation status of the front passenger's
airbag is suitable for the passenger in the front
passenger's seat > page 71
— Children are secured in suitable child safety
seats that are secured to appropriate vehicle
seats > page 73. Read and observe the impor-
tant safety information pertaining to the use of
child safety seats on the front passenger's seat
= A in General information on page 74.
Examples of incorrect seating positions
Safety belts can only provide its optimal protec-
tion when they are routed correctly. Incorrect
seating positions significantly reduce the protec-
tive functions of the safety belts and increase the
risk of injury due to incorrect belt routing.
The following list includes examples of seating
positions that could be dangerous for all vehicle
occupants. This is not a complete list. The pur-
pose is to provide examples to increase your
awareness of the topic. The following points ap-
ply when the vehicle is in motion:
— Never stand inside the vehicle.
— Never stand on the seats.
60
— Never kneel on the seats.
— Never tilt your backrest too far back.
— Never lean against the instrument panel.
— Never lie down on the rear bench seat.
— Never sit only on the front section of the seat.
— Never sit sideways on the seat.
— Never lean against the window.
— Never place your feet out of the window.
— Never place your feet on the instrument panel.
— Never place your feet on the seat cushion.
— Never ride in the footwell.
— Never sit on the armrests.
— Never drive or ride in a seat without fastening
your safety belt.
— Never ride in the luggage compartment.

ZA WARNING
Incorrect seating positions, failure to wear a
safety belt, or being too close to an airbag in-
crease the risk of serious or fatal injury to ve-
hicle occupants, especially if the airbags de-
ploy and come into contact with occupants
who are not seated correctly. Note the impor-
tant information and warnings in the chapters
for the topics given above.
Gi) Tips
— Save your seat profile* > page 68. This al-
lows you to access your personal seat profile
quickly and easily at any time.
— If you or other vehicle passengers have
physical limitations that prevent sitting in a
correct position, modifications to the vehi-
cle may be necessary. For more information,
contact an authorized Audi dealer or author-
ized Audi Service Facility, or call Audi cus-
tomer support at 1-800-822-2834.


Front seats
General information
Make sure that:
— You can press the pedals down completely
while your legs are slightly bent

Sitting correctly and safely


authorized Audi dealer or authorized Audi
Service Facility.
— The safety belts must not be removed or
modified in any way. Do not attempt to re-
pair the safety belts yourself.
— Safety belts that are strained during an acci-
dent, and thus stretched, must be replaced
by an authorized Audi dealer or authorized
Audi Service Facility.
Correct safety belt positioning


B4H-0751



RAZ-0696,


as
Fig. 58 Safety belt positioning for pregnant women

Fastened safety belts only offer optimal protec-
tion during an accident and reduce the risk of se-
rious injury or death when they are positioned
correctly. Furthermore, the correct safety belt
position holds the vehicle occupant in place so
that a deployed airbag can provide maximum
protection. Therefore, always fasten the safety
belt and make sure it is positioned correctly
> fig. 57.
To ensure the safety belt is positioned correctly,
make sure of the following points:
— The lap portion of the safety belt must be locat-
ed across the lap.
66
— The shoulder portion of the safety belt must
rest over the center of the shoulder.
— The safety belt must always rest flat and se-
curely on the body.
For pregnant women, the safety belt must rest
evenly across the chest and as low and flat as
possible on the lap, so that no pressure is applied
to the lower abdomen. This should be done
throughout the entire pregnancy > fig. 58.

Z\ WARNING
Incorrect safety belt positioning can cause se-
rious injury in the event of an accident or dur-
ing sudden braking or driving maneuvers.
— Never drive with the backrest reclined ex-
tremely far. The more the backrest is tilted
back, the greater the risk of injury due to the
safety belt being routed incorrectly.
— The safety belt itself or a loose safety belt
can cause serious injuries if it shifts onto
soft areas of the body, such as the stomach.
— The shoulder portion of the safety belt must
lie over the center of the shoulder and
chest, and never under the arm, behind the
back, or across the neck or face.
— The lap portion of the safety belt must lie
across the lap and never over the stomach.
— The safety belt must lie flat and securely on
the upper part of the body and the lap.
— The belt webbing must not be pinched or
twisted, or rub against sharp edges.
— If the safety belt height is set incorrectly
and/or the safety belt is routed incorrectly,
then the safety belt's protective function
will be impaired in the event of an accident.
Make sure the safety belt is at the right
height and is routed correctly for the pas-
senger using it.
— A safety belt that is too loose may lead to in-
juries during an accident, because your body
will move farther forward due to kinetic en-
ergy and will be stopped abruptly by the
belt.
— Heavily bulky, loose clothing (for example, a
coat over a sports jacket) may prevent the
seat and safety belts from functioning cor-
rectly.

Sitting correctly and safely

> To check if the safety belt relay is securely
locked in place, pull firmly on the belt.
@ Tips
You can also adjust the height of the front
seats to change the position of the safety
belts.
PXe ert eam imately
Belt retractor lock
The safety belts on the rear seats and on the
front passenger seat are equipped with a belt re-
tractor lock.
> If you secure a child safety seat with a safety
belt, the belt retractor lock on the safety belt
may need to be activated. Follow the instruc-
tions from the child safety seat manufacturer.
» When a vehicle passenger has fastened a safety
belt, the belt retractor lock should not be acti-
vated. If the belt retractor lock has been acti-
vated unexpectedly, deactivate it.
Deactivating or activating the belt retractor lock
=> page 76.
Safety belt retractor
The safety belts are equipped with an automatic
belt retractor. This automatic retractor allows the
safety belt to be pulled all the way out when the
belt is pulled slowly. However, the automatic re-
tractor locks during sudden braking maneuvers.
It also locks the belts when accelerating, driving
uphill, and driving around curves.
Belt force limiter
Safety belts with belt force limiters reduce the
force placed on the body by the safety belts dur-
ing a collision.
Safety belt pretensioners
Safety belts may be tightened with reversible
belt tensioners when you start driving and in cer-
tain driving situations. If the safety belt is too
loose, it will be tightened so that the belt will
rest closer to the body.
In some collisions, pyrotechnic belt tensioners
may secure the safety belts so that they cannot
68
loosen. This reduces forward movement by the
vehicle passengers.

ZA\ WARNING
The pyrotechnic system can only provide pro-
tection during one collision. If the pyrotechnic
belt tensioners deploy, the pretensioning sys-
tem must be replaced by an authorized Audi
dealer or authorized Audi Service Facility.
G) Tips
Smoke may be released when pyrotechnic belt
tensioners deploy. This is not a sign of a vehi-
cle fire.

Memory function
General information
Applies to: vehicles with memory function
With the memory function, you can save and call
up seat profiles using the memory buttons in the
door trim panel.
Depending on the equipment, it may be possible
to store the following settings:
— Driver's seat: seat, steering wheel*, exterior
mirrors
— Front passenger's seat: seat
Storing and recalling a seat profile
Applies to: vehicles with memory function
The memory function buttons are located in the
door trim panel.
Storing a seat profile

> Press the [SET] button. If the LED in the button
turns on, a seat profile can be stored.
> Push one of the numbered memory buttons. A
tone confirms that the settings were stored.

Accessing a seat profile
> While the driver’s or front passenger's door is
open and the ignition is switched off, press the
memory button once briefly. The seat will be
fully adjusted to the settings in the seat profile.
> If the driver's/front passenger's door is closed
or the ignition is switched on, press and hold >

4K0012721BD
Sitting correctly and safely

the memory button until the seat profile is
completely set.


Z\ WARNING
— To reduce the risk of an accident, the seat
setting can only be recalled when the vehicle
is stationary.
— In an emergency, the recall process can be
canceled by pressing the seat adjustment

button on that seat.

@) Tips
Certain settings are stored automatically in
the active personal profile.
Airbag system
General information
ZA WARNING
— If you have not fastened your safety belt,
you are in an incorrect seating position, or
you are too close to the airbag system, the
airbag system will not be able to protect
you. This increases the risk of serious or fa-
tal injuries. Make sure that every vehicle
passenger has their safety belt correctly fas-
tened and is sitting in a correct seating posi-
tion = page 60. This is necessary regardless
of whether the seat is equipped with an air-
bag or not.
— Never place your feet on the instrument
panel, out of the window, or on the seat sur-
faces. To help ensure that the airbag system
can deploy correctly, never bend forward or
lean on the door or the side window. Other-
wise, serious and possibly fatal injuries can
occur if the airbags deploy.

— People, animals, or objects between the
passengers and the airbag system can inter-
fere with the correct deployment of the air-
bag or can be thrown through the vehicle in-
terior, increasing the risk of serious or fatal
injuries. Make sure that nothing is located
between the vehicle occupants and the air-
bag system. Do not secure or transport any

objects within the deployment zone of the


airbag systems, especially on the steering
wheel, on the instrument panel, on the
doors, on the windows, or in the footwell.
— Never put stickers on the airbag system cov-
ers or cover them with any objects.
— Only lightweight clothing should be hung
from the garment hooks in the vehicle. Do
not use clothes hangers to hang clothing.
The pockets of the clothing must not con-
tain any heavy, breakable, or sharp-edged
objects. This could impair the effectiveness
of the side curtain airbags.
— You must not use seat or protective covers
that are not specifically approved for use on
Audi seats with side airbags. Since the side
airbags deploy from the seat backrest, such
covers could impair the protective function
of the side airbags.
— Damage to the original seat covers in the
side airbag deployment area must always be
repaired by an authorized Audi dealer or au-
thorized Audi Service Facility.
— Airbag system components are installed at
various locations in your vehicle. Incorrect
work or repairs on the vehicle could damage
the airbag system components or impair
their functionality. This may prevent the air-
bags from deploying or cause them to de-
ploy incorrectly in the event of an accident,
which increases the risk of serious or fatal
injuries. Only have an authorized Audi dealer
or authorized Audi Service Facility make re-
pairs or modifications to a vehicle.
— The airbag system can only provide protec-
tion during one collision. If there is another
collision, the airbag system will not deploy
again. If the airbag system has deployed,
have it replaced immediately by an author-
ized Audi dealer or authorized Audi Service
Facility.
— Fine dust may appear if the airbags deploy.
This is completely normal and does not indi-
cate a fire in the vehicle. The fine dust can ir-
ritate the skin and mucous membranes in
the eyes and can cause difficulty breathing,
particularly for individuals who have or have

69

Sitting correctly and safely


had asthma or other health issues that af-
fect breathing. Exit the vehicle or open the
windows or doors to get access to fresh air.
Gi) Tips
If you are transporting children in the vehicle,
read the information and follow the safety
precautions > page 73.

Safety systems monitoring
The ka indicator light in the instrument cluster
monitors the safety systems such as the airbags
(including the control modules, sensors, and wir-
ing) and the belt tensioners. It turns on when you
switch the ignition on and turns off after several
seconds.
If the ka indicator light does not turn on when
the ignition is switched on, does not turn off af-
ter several seconds, or turns on or flashes while
driving, there may be a malfunction in one of the
safety systems. Drive to an authorized Audi deal-
er or authorized Audi Service Facility immediately
to have the malfunction corrected.

ZA\ WARNING
Have the malfunction in the safety systems in-
spected immediately. Otherwise, there is a
risk that the systems may not activate during
an accident, which increases the risk of seri-
ous or fatal injury.


Description


RAZ-0239


Fig. 62 Airbag overview image (enlarged section: deployed airbags)
The locations of the airbags are labeled with
“AIRBAG”. The following airbags are installed in
your vehicle:
@ Driver's airbag
70
@ Front passenger's airbag
@® Front and rear side airbags, if applicable
@ Head curtain airbag with ejection mitigation
© Knee airbags

4K0012721BD
Sitting correctly and safely

Airbags offer the best possible protection in your
vehicle during an accident when they are used to-
gether with safety belts that are fastened cor-
rectly, and when passengers are sitting in the cor-
rect seating position. Airbags are a supplementa-
ry restraint system and do not replace safety
belts.
Airbags may deploy during front-impact, side-im-
pact, or rollover accidents.
The deployment area for the airbag system can-
not be defined for every situation, since the cir-
cumstances surrounding accidents can vary wide-
ly. Factors that play an important role include the
condition of the object that the vehicle hits (hard
or soft), the angle of impact, vehicle speed, etc.
The deciding factor for the deployment of the air-
bag system is the deceleration that occurs during
an accident. Sensors in the vehicle are designed
to detect the severity of an accident in conjunc-
tion with the control module, and to provide a
targeted and timely deployment of the restraint
system. If the vehicle deceleration that is meas-
ured during an accident is below the specified
reference values in the control module, then the
airbags will not deploy, even though the vehicle
may be severely damaged from the accident. In
these cases, the vehicle occupants will be pro-
tected by the safety belts if they are fastened and
worn correctly.
The deployment of the front passenger's airbag
will depend on the occupancy of the seat
> page 71.
Each deployed airbag is filled with gas. When this
occurs, the airbag covers open and the airbags
unfold with great force into the deployment zone
within milliseconds. Inflated airbags reduce the
movement of passengers wearing safety belts in
the direction of the impact and thus help to re-
duce the risk of injury. They can help to protect
the head, upper body, and lap, for example. How-
ever, there is the possibility that airbag deploy-
ment can cause injuries.
The airbag system only works when the ignition
is turned on.
If you or other vehicle passengers have physical
limitations that prevent sitting in a correct posi-
tion, modifications to the vehicle may be neces-
sary. For more information, contact an author-
ized Audi dealer or authorized Audi Service Facili-
ty, or call Audi customer support at
1-800-822-2834.
G) Tips
The side curtain airbags in your vehicle have
ejection mitigation functions. This reduces
the risk of being ejected from the vehicle inte-
rior during an accident, especially in the event
of a vehicle rollover.
Advanced airbag system
cS Fa an \ +
|
Fig. 63 Headliner: indicator light to display the status of
the front passenger's airbag

The Advanced Airbag System in your vehicle has
been certified to comply with the requirements
of the United States Federal Motor Vehicle Safety
Standard (FMVSS) 208, as well as Canada Motor
Vehicle Safety Standard (CMVSS) 208 as applica-
ble at the time your vehicle was manufactured.
According to these requirements, the front Ad-
vanced Airbag System on the passenger’s side
has been certified for “suppression” for infants
approximately 12 months old and younger, and
for “low risk deployment” for children aged 3 to
6 years old (as defined in the standard).
The advanced airbag system will activate or deac-
tivate the front passenger's airbag based on the
occupancy of the seat. If a front airbag deploys
during an accident, the deployment force will
adapt to the passenger.
Components
The advanced airbag system consists of the fol-
lowing components:
71
>

4K0012721BD
Sitting correctly and safely

PASSENGER AIR BAG OFF #; must remain
on.
— Front passenger's seat not occupied: the front
passenger's airbag must be deactivated, so
PASSENGER AIR BAG OFF #¥; must remain
on.

ZA WARNING
— An adult or a person with a small stature
(such as a young person or small adult) seat-
ed on the front passenger's seat will not be
protected by the passenger's airbag in the
event of a collision if the passenger's airbag
is deactivated. This increases the risk of in-
jury and death. Always make sure that
PASSENGER AIR BAG ON @ remains on
while driving. If
PASSENGER AIR BAG ON @ does not
turn on, make sure the front passenger is
sitting correctly in the seat > page 60 and
that there are no objects covering the front
passenger's seat (such as blankets or pil-
lows). If PASSENGER AIR BAG ON @
still does not turn on, the front passenger's
seat must not be used. Drive to an author-
ized Audi dealer or authorized Audi Service
Facility and have the airbag system inspect-
ed.
—Achild ina child safety seat on the front
passenger's seat - especially in a rear-facing
child safety seat - can receive a severe im-
pact if the front passenger's airbag deploys,
which increases the risk of serious or fatal
injury. Always secure child safety seats on
the rear seats. If special circumstances re-
quire the use of a child safety seat on the
front passenger's seat, always make sure
that PASSENGER AIR BAG OFF 3%; re-
mains on while driving. If
PASSENGER AIR BAG OFF #¥; does not
turn on, remove the child safety seat and in-
stall it again according to the child safety
seat manufacturer instructions. If
PASSENGER AIR BAG OFF &%; still does
not turn on, the front passenger's seat must
not be used. Drive to an authorized Audi
dealer or authorized Audi Service Facility
and have the airbag system inspected.


— Fluids, electronic devices, or mechanical
damage on the front passenger's seat may
cause the front passenger seat occupant de-
tection to malfunction. The system may
then incorrectly detect if the front passeng-
er's seat is occupied. As a result, it could de-
ploy the front passenger’s airbag incorrectly
or fail to deploy it, which increases the risk
of serious or fatal injury. Make sure that no
wet objects (such as a wet hand towel) and
no fluids come into contact with the front
passenger's seat cushion. If the front pas-
senger's seat becomes wet, dry it immedi-
ately. Make sure no electronic devices (such
as a laptop or a retrofitted seat heater) are
on the front passenger's seat. Do not trans-
port any objects on or under the front pas-
senger's seat.
— Seat covers or protective covers may prevent
the advanced airbag system from correctly
detecting child safety seats or passengers in
the front passenger's seat. You must not use
seat covers or protective covers on the front
passenger's seat that are not specifically ap-
proved for use on Audi seats with an ad-
vanced airbag system.


Child safety seats
General information
When installing and using child safety seats, fol-
low the information in this Owner's Manual, the
applicable state and federal regulations, and the
manufacturer instructions for the child safety
seat.
You can also obtain useful and current informa-
tion from the following sources:
U.S. National Highway Traffic Safety Adminis-
tration
http://www.nhtsa.gov
http://www. safercar.gov
National SAFE KIDS Campaign
http://www. safekids.org
SafetyBeltSafe U.S.A.
http://www.carseat.org
73

Sitting correctly and safely

Transport Canada Information Centre
http://www.tc.gc.ca/roadsafety
Audi Customer Experience Center
https://www.audiusa.com/help/contact-us
https://www.audi.ca/ca/web/en/models/layer/
contact.html


ZA WARNING
To reduce the risk of serious or fatal injuries,
children must always be secured in the vehicle
with a child safety seat that is appropriate for
their body size, weight, and age.
— Children ages 12 and under must be trans-
ported using the appropriate child safety
seat. Note differences in regulations be-
tween states and countries.
— Child safety seats secured incorrectly in the
vehicle may cause serious or fatal injuries in
the event of an accident. Always secure the
child safety seat according to the manufac-
turer instructions.
— Children or babies must not under any cir-
cumstances be held on the lap of the driver
or other passengers while driving.
— Do not secure more than one child in a child
safety seat.
— Never allow a child to sit in a child safety
seat unsupervised.
— Never allow children to ride unsecured in the
vehicle or to stand or kneel on the seats
while driving. In the event of an accident, a
child could be propelled through the vehicle.
This can cause serious or fatal injuries for
the child and passengers.
— If children use an incorrect seating position
while driving, they have a higher risk of in-
jury during a sudden braking maneuver or
accident. This especially applies to children
in the front passenger's seat or children who
have their head near the side airbag deploy-
ment area, if the airbag system is deployed
during an accident. This incorrect seating
position can cause severe or even fatal inju-
ries.
— Make sure there is enough space in front of
the child in the child safety seat. If necessa-


ry, adjust the angle and position of the seat
in front of the child safety seat.
— The rear side of a forward-facing child safety
seat should be positioned as close as possi-
ble to the backrest on the vehicle seat. If the
head restraints make it difficult to install a
child safety seat, adjust or remove them if
necessary > page 64. Reinstall the head re-
straints immediately once the child safety
seat has been removed.
— Always make sure that the backrest on the
seat where the child safety seat is installed
is securely locked in place and cannot move
forward. Otherwise, the backrest where the
child safety seat is secured could move for-
ward in the event of an accident or other
emergency situation.
— NEVER use a rear-facing child safety seat on
a seat with an ACTIVATED FRONT AIRBAG;
this could cause DEATH or SERIOUS INJU-
RIES to a CHILD.
— Always secure child safety seats on the
rear seats. If exceptional circumstances re-
quire the child safety seat to be placed on
the front passenger's seat, then the front
passenger's airbag must be deactivated.
Always make sure that
PASSENGER AIR BAG OFF %; remains
on while driving. If
PASSENGER AIR BAG OFF %; does not
turn on, remove the child safety seat and
install it again according to the child safe-
ty seat manufacturer instructions. If
PASSENGER AIR BAG OFF 2; still
does not turn on, the front passenger's
seat must not be used. Drive to an author-
ized Audi dealer or authorized Audi Service
Facility and have the airbag system in-
spected.
— If you must use a forward-facing child safety
seat on the front passenger's seat, move the
seat as far back as possible so that it is as
far as possible from the front passenger's
airbag. While doing this, make sure the seat
can be adjusted all the way. A child in a child
safety seat on the front passenger's seat can


74

4K0012721BD
Warm and cold

@) Note
To reduce the risk of damage to the seat heat-
ing* elements, do not kneel on the seats or
place heavy pressure on one area of the seat.
@ Tips
— If the front passenger's seat heating” is
turned on, it will not turn on again automat-
ically if more than 10 minutes have passed
between switching the ignition off and on
again.
— Only use the fragrance function* in modera-
tion and take any other passengers and ani-
mals into consideration when using the
function. An overlap of different scents or
odors could cause discomfort. If there is
discomfort, reduce the intensity or switch
the fragrance function* off. Only use fra-
grances that are approved by Audi.
Adjusting the vents
You can open and close the vents using the
thumbwheels. The levers adjust the direction of
the airflow from the vents.
Additional settings
You can adjust additional settings.
> Applies to: MMI: Select on the home screen:
VEHICLE > Climate control > ©.
Fragrance
Applies to: vehicles with fragrance function
Using Fragrance selection, you can select the fra-
grance and see the fill level of the fragrance.
You can select the strength of the scent with Fra-
grance level.
Footwell temperature*
You can adjust the footwell temperature for the
driver and front passenger.
Air quality display
Applies to: vehicles with air quality display
You can display information about the air quality.
> Applies to: MMI: Select on the home screen:
VEHICLE > Climate control > Air quality.
Pollutant filter
A pollutant filter cleans the air in the vehicle inte-
rior when the blower is switched on.
A schematic display represents the effectiveness
of the filter. The display visualizes the amount of
pollutant particles in the vehicle interior in com-
parison to the surroundings.
G) Tips
For optimal air quality in the vehicle interior,
close all windows and doors and activate A/C
cooling mode, the AUTO function, and recircu-
lation mode.
Steering wheel heating
Sy ieee Rela
Applies to: vehicles with steering wheel heating
> Press @ to switch steering wheel heating on or
off.
You can also operate the steering wheel heating
using the multifunction steering wheel
> page 29.
@® Tips
The steering wheel heating setting will be au-
tomatically stored in the active personal pro-
file.
Messages
Applies to: vehicles with steering wheel heating
@ Steering wheel heating: on/Steering wheel
heating: off
This message appears if you have switched the
steering wheel heating on or off.
Steering wheel heating: malfunction! See own-
er's manual
If this message appears, there is a malfunction.
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
91

Warm and cold

Fluids in the A/C system
Refrigerant in the A/C system
The sticker in the engine compartment provides
information about the type and amount of refrig-
erant used in the vehicle’s A/C system. The stick-
er is located in the front section of the engine
compartment or at the front or back of the hood.

Symbol | Meaning

Warning: the A/C system must only
A be serviced by qualified technicians.

Refrigerant type

alt Lubricant type

Refer to the service information
(only available for authorized Audi
dealers or authorized Audi Service
Facilities)
i

The A/C system must only be serv-
iced by qualified technicians.

Flammable refrigerant
Se
|Be

Make sure all components are dis-
posed of correctly and never install
y components in the vehicle that have
been removed from old vehicles or
taken from recycling.


Lubricant in the A/C system
The exact specification and amount of lubricant
in the A/C system can be obtained from an au-
thorized Audi dealer or authorized Audi Service
Facility or at https://erwin.audiusa.com/erwin.

ZA\ WARNING
To ensure secure and safe operation, the A/C
system must only be serviced by qualified
technicians.

@) Tips
— Never repair the A/C system evaporator with
components from old vehicles or from recy-
cling.
— New replacement evaporators for portable
A/C systems must be certified and labeled
92
as such, so that they comply with the SAE
standard J2842 HFO-1234yf and R744.