2015 AUDI RS5 CABRIOLET airbag

138 Airbag sys te m
the forward-facing child restraint. The
backrest must be adjusted to an upr ight
position.
- Make sure that the
PASSENG ER AIR BA G
OFF
light comes on and stays on all the
t ime whenever the ignition is switched
on.
Advanced Airbag System components
The front passenger seat in your vehicle has a
l ot of very important parts of the Advanced
A irbag System in it. These parts include the
weight-sens ing mat , sensors, w iring, brack­
ets, and more. The function of the sys tem in
the front passenger seat is checked by the
e lectronic control unit when the ignition is on .
T he control unit mon itors the Advanced Air ­
bag System and turns the airbag indicator
light on when a malfunction in the system
components is detected . The function of the
a irbag ind icator light is described in greater
deta il be low . Because the front passenge r
seat conta ins important parts of the Ad­
v a nce d Airbag System, you m ust ta ke care to
prevent it from be ing dam aged. Damage to
the seat may prevent the Advanced Airbag for
the front passenger seat from doing its job in
a crash .
The front Advanced Airbag System
consis ts o f the following :
-Crash sensors in the front of the veh icle that
measure veh icle acceleration/dece leration
to provide information to the Advanced Air­
bag System about the severity of the crash .
- An electronic control unit, with integrated crash sensors for front and side impacts.
The contro l unit "decides" whether to fire
the front airbags based on the information
received from the crash senso rs. The co ntro l
u nit a lso "dec ides " whet he r the safety be lt
pre tensione rs should be a ctivated.
- An Advanced Airbag with gas generator and
control valve for the d river inside the s teer­
i ng w hee l hub . -
An Advanced A irbag w ith gas generator and
cont ro l valve inside the instrument pane l for
the front passenger .
- A we ight -sensing mat under t he up ho lstery
padding of the front passenger seat cushion
that measures the total weight on the seat.
The informat io n registered is sent continu­
ously to the electronic control unit to regu­
late deployment of the front Advanced Air­
bag on the passenger side .
- An airbag monitoring system and indicator
light in the instr ument cluster
q page 141.
- A sensor in each front seat registers the dis­
tance betwee n the respective seat a nd the
s teer ing whee l o r i nstrument panel. The in­
formation registered is sent cont inuous ly to
t he ele ct ro nic c ontro l uni t to regula te de­
p loyment o f the front Adv anced A irbags .
- The
PASSENGER AIR BAG OFF light comes
on and stays on in the cen ter o f the instr u­
ment panel
q page 142, fig. 152 and tells
you when the fron t Advanced Airbag on the
passenger side has been tu rned off .
- A senso r below the safety be lt latch for the
front seat passenger to meas ure t he tension
on t he safety be lt . T he tension on the safety
be lt and the weight registered by the
weight-sens ing mat he lp the control unit
"decide" whether the front airbag for the
front passenger seat should be turned off or no t
q page 132, Child restraints on the
front s eat -some important things to
k now.
- A senso r in the safety be lt latch fo r th e d riv­
er and fo r the front seat passenger tha t
s enses w het he r th at safety bel t is latche d or
no t and transmi ts this information to t he
elect ronic con trol un it.
A_ WARNING
D amage to the front passenger seat can
prevent the front airbag from work ing
properly.
- Imp roper repai r or d isassembly of the
front passenge r and dr iver seat will pre­
vent the Advanced Airbag System from
functioning properly .
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-Repairs to the front passenger seat must
be performed by qualified and properly
trained workshop personnel.
- Never remove the front passenger or
driver seat from the vehicle.
- Never remove the upholstery from the
front passenger seat.
- Never disassemble or remove parts from
the seat or disconnect wires from it.
- Never carry sharp objects in your pockets
or place them on the seat. If the weight­
sensing mat in the passenger seat is
punctured it cannot work properly.
- Never carry things on your lap or carry
objects on the passenger seat. Such
items can increase the weight registered
by the weight-sensing mat and send the
wrong information to the airbag control
unit.
- Never store items under the front pas­
senger seat. Parts of the Advanced Air­ bag System under the passenger seat
could be damaged, preventing them and
the airbag system from working proper­
ly.
- Never place seat covers or replacement
upholstery that have not been specifical­
ly approved by Audi on the front seats.
- Seat covers can prevent the Advanced
Airbag System from recognizing child re­
straints or occupants on the front pas­
senger seat and prevent the side airbag
in the seat backrest from deploying prop­
erly.
- Never use cushions, pillows, blankets or
similar items on the front passenger
seat. The additional padding will prevent
the weight-sensing mat in the seat from
accurately registering the child restraint
or person on the seat and prevent the
Advanced Airbag System from function­
ing properly.
- If you must use a child restraint on the
front passenger seat and the child re­
straint manufacturer's instructions re­
quire the use of a towel, foam cushion or
something else to properly position the
child restraint, make certain that the
Airbag system 139
PASSENGER AIR BAG OFF light comes
on and stays on whenever the child re­
straint is installed on the front passen­
ger seat.
- If the
PASSENGER AIR BAG OFF light
does not come on and stay on, immedi­
ately install child restraint in a rear seat­
ing position and have the airbag system
inspected by your authorized Audi dealer.
How the Advanced Airbag System
components work together
The front Advanced Airbag System and the
side airbags supplement the protection of­
fered by the front three-point safety belts
with pretensioners and load limiters and the
adjustable head restraints to help reduce the
risk of injury in a wide range of accident and
crash situations. Be sure to read the impor­
tant information about safety and heed the
WARNINGS in this chapter.
Deployment of the Adva need Airbag System
and the activation of the safety belt preten­ sioners depend on the deceleration measured
by the crash sensors and registered by the
electronic control unit. Crash severity depends
on speed and deceleration as well as the mass
and stiffness of the vehicle or object involved
in the crash.
On the passenger side, regardless of safety
belt use, the airbag will be turned off if the
weight on the passenger seat is less than the
amount programmed in the electronic control
un it. The front airbag on the passenger side
will also be turned off if one of the child safe­
ty seats that has been certified under Federal
Motor Vehicle Safety Standard 208 has been
recogni zed on the seat . The
PASSENGER AIR
BAG OFF
light comes on and stays on to tell
you when the front Advanced Airbag on the passenger side has been turned off
~ page 132, Child restraints on the front seat
- some important things to know. .,.
•
•

140 Airbag system
& WARNING
To reduce the risk of injury when an airbag
inf lates, a lways wear safety belts properly.
- If you are unrestrained, lean ing forward,
sitting sideways or out of position in any
way, your risk of injury is much hig her .
- You w ill also receive serio us in juries and
cou ld even be killed if you are up against
the a irbag or too close to it when it in­
fla tes -even with an Advanced Airbag
~ page 131.
More important things to know about
front airbags
F ig . 1 51 Inflated front a irbags
Safety belts are impo rtant to help keep front
seat occupants in the proper seated pos ition
so that airbags can unfo ld prope rly and pro­
vide supp lement al protection in a front al col­
lision.
Th e front a irbags are designed to provide ad­
d itiona l prote ct io n for the chest a nd face of
the dr iver and the fr ont seat passenge r whe n:
- safety belts are worn properly,
- the seats have been posit ioned so that the
occupant is properly seated as far as possi­
ble from t he a irbag,
- and the head rest raints have been properly
adjusted .
Because airbags inflate in the blink of an eye
with great force, things you have on your lap
or have placed on the seat could become dan ­
ge ro us projectiles, an d be pushed into yo u if
the airbag inflates.
When an a irbag deploys, fine dust is released.
This is normal and is not caused by a fire in the vehicle
. This dust is made up mostly of a
powde r used to lubricate the airbags as they
deploy.
It could irr itate sk in.
It is impo rtant to remember th at w hile the
s u pplementa l airbag system is designed to re­
duce the like lihood of serious injuries, other
i njur ies, for examp le swelling, br uis ing and
minor abrasions, can a lso happen when air­
bags inflate. A irbags do not protect the arms
o r the lowe r parts of the body . Front a irbags
o nly supp lement the three point safe ty belts
in some fronta l collisions in wh ich the vehicle
deceleration is h igh enough to deploy the air ­
bags.
Front airbags will not deploy:
- if the ignition is sw itched off whe n a crash
occ urs,
- in side co llisions,
- in rear-end co llisions,
- in rollovers,
- when t he crash decelerat ion meas ured by
the airbag system is less than the min imum
threshold needed for a irbag deployment as
reg istered by the electronic contro l unit .
The front passenger airbag will also not
deploy:
- when the front passenger seat is not occ u­
pied,
- when the weight on the front passenger
seat as sensed by the Advanced Airbag Sys­
tem indicates that the fr ont a irbag on the
passe nger side has to be turned off by the
elect ronic control un it (the
PA SSENGER AIR
BAG OFF
li ght comes on and stays o n).
& WARNING
-
Sitting in the wrong pos ition can incr ease
t he r isk of se rio us i njury in crashes.
- To r educe t he risk of inju ry w he n the air ­
bags i nflate, the drive r and passenge rs
m ust alw ays sit in an upr igh t position,
m ust not lea n aga ins t or place any part
of their body too close to the area whe re
the airbags a re located .
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-Occ upants who are unbelted, out of posi­
t ion or too close to the airbag can be
seriously injured by an airbag as it un­
folds with great force in the blink of an
eye
¢ page 132.
A WARNING
-
A child in a rearward-facing child safety
seat insta lled on the front passenger seat
w ill be seriously injured and can be k illed if
the front a irbag in flates - even with an Ad­
vanced Airbag System .
- The inflating a irbag w il l hit the child
sa fety sea t or infant carrier w ith g reat
f orce and w ill smash the ch ild safety seat
and child against the backrest , cente r
armrest, door or roof .
- Always install rear -facing child sa fety
seats on the rear seat .
- If you mus t install a rearward facing
child safety seat on the front passenger
seat because of exceptional circ umstan­
ces and the
PASSENGER AIR BAG OFF
light does not come on and stay on, im ­
med iately install the rear-facing child
safety seat in a rear seating position a nd
have the a irbag system inspected by you r
authori zed Au di dealer .
A WARNING
Objects betwee n you and t he a irbag will
increase the risk of in jury in a crash by in­
t erfering wi th the way the air bag un folds
or by being pushed into you as the a irbag
inflates.
- Never hold th ings in your hands or on
yo ur lap when the vehicle is in use.
- Never transport i tems on or in the area
of the front passenge r seat . Objects
cou ld move into the area of the front air­
bags dur ing braking or other s udden ma­
neuver and become dangerous projec­
t il es that can cause serious personal in­
jury if the airbags inflate .
- Never place or attach accessories or oth­
er objects (such as cupholders, te le­
phone brackets, large, heavy or b ulky ob -
-
Airbag system 141
jects) on the doors, ove r o r near the area
marked "AIRBAG" on the steering wheel,
instrument panel, seat backrests or be­
tween those areas and yourself . These
objects could cause in ju ry in a c rash , es ­
pecia lly when the airbags infla te .
- Never recline the front passenger 's sea t
to transport objects. Items can a lso
move into the area of the s ide a irbag or
the front a irbag du ring bra king or in a
sudden maneuve r. O bje cts ne ar the air­
bags can become projec tiles and cause
in jur y, partic ula rly when the seat is re ­
clined .
A WARNING
The fine dust create d when air bags deploy
can cause breathing prob lems for people
with a history of asthma or other breath­ ing cond itions .
- To reduce the risk of breath ing problems,
those with asthma or other respiratory conditions shou ld get fresh air r ight
away by getting o ut o f the veh icle or
open ing windows or doors.
- If you are in a collision in which airbags
deploy, was h your hands and face with
mild soap and wate r before ea ting.
- Be ca reful not to get the dust into your
eyes, o r into any c uts or sc ratches .
- If the resid ue should get into your eyes,
f lush them w ith wate r.
Monitoring the
Advanced Airbag
System
Airbag monitoring indicator light
T wo separate indicators monitor the function
of the Advanced Airbag System: the airbag
monitoring indicator light and the
PASSEN·
GER AIR BAG OFF
light.
T he Advanced A irbag System ( incl uding the
electron ic co ntro l unit , se nsor circu its and sys­
tem wir ing) is mo nitore d continuously to
m ake su re that it i s fu nc tioni ng properly •
•

142 Airbag system
whenever the ignit ion is on. Each t ime yo u
turn on the ignition, the
II airbag monitoring
indicator light will come on for a few seconds
(self diagnostics) .
The sy stem must be in spect ed wh en the
fl ind icator light :
-does not come on when the ignit ion is
switched on,
- does not go out a few seconds after you
have switched on the ignition, or
- comes on while driving .
If an airbag system malf unct ion is dete cted,
the ind icator light will firs t start flash ing to
catch the driver's attention and then stay on
continuously to serve as a constant reminder
to have the system inspected immediately.
If a mal func tion occurs that turns the fron t
airbag on the passenger side off, the
PASSEN­
GER AIR BAG OFF
l ight will come on and stay
on whenever the ignition is on.
.&_ WARNING
An airbag system that is not funct ion ing
properly cannot provide supplemental pro­
tect ion in a frontal crash.
- If the airbag indicator light
c:> page 19
comes when the vehicle is be ing used,
have the system inspected immed iate ly
by you r autho rized Aud i dea le r. It is pos­
sible that the airbag will inf late when it
is not s upposed to, or w ill not inflate
when it sho uld.
PASSENGER AIR BAG OFF light
Fig. 152 Sect ion from the inst rumen t pa nel: PASSEN­
GER AIR BAG O FF ligh t
-
The PASSENGER AIR BAG OFF light is located
in the center of the instrument pane l
c:>fig. 152.
The PASSENGER AIR BAG OFF light wi ll come
on and stay on to tell you when the front Ad­
vanced Airbag on the passenger side has been
turned off by the electron ic contro l unit. Each
t ime you turn on the ignition , the
PASSEN ­
GER AIR BAG OFF
light will flash for a few
seconds and:
- will stay on i f the front passenger seat is not
occ upied,
- will stay on if there is a small ch ild or child
restraint on the front passenger seat,
- will go out if the front passenge r seat is oc­
cupied by an adult as registered by the
weight-sensing mat.
T he
PASSENGER AIR BAG OFF light mu st
come on and stay on
if the ignition is on and
- a ca r bed has been installed on the fron t
seat, o r
- a rearward-facing child rest rain t has bee n
installed o n the front passenger seat, or
- a forwa rd-fac ing ch ild restra int has been in­
stalled on the front passenger sea t, or
- the weight reg iste red on the front passen­
ge r seat is equal to or less t han t he com­
bined weight o f a typical 1 year -ol d restra in ­
ed in one of the rea r-facing or forwa rd-fac­
ing infant restraints listed in Federal Motor
Veh icle Safety Standard 208 with which the
Advanced A irbag System in your vehicle was
certified .
If the front passenger seat is not occupied,
t h e front airbag will not deploy, and the
PAS·
SENGER AIR BAG O FF
light will stay on. Nev­
er install a rearward-facing child restraint on
t h e front passenger seat, the safest p lace for
a ch ild in any k ind of ch ild restraint is at one
of the seating posit ions on the rear sea t
c:> page 132, Child restraints on the front seat
- some important things to know
and
c:> page 152, Child Safety.
If th e PASSENGER A IR BAG OFF light come s
o n
w hen o ne of the cond itions listed above is
met, be su re to check t he light regu larly to
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make certain that the PASSENGER AIR BAG
OFF
light stays on continuous ly whenever the
i gnit ion is on. If the
PASSENGER AIR BAG
OF F
light does not appear and not stay on all
the t ime, stop as soon as it is safe to do so
and
- react ivate the system by turning the ignition
off and then turning it on again;
- remove and reinstall the child restraint .
Make sure that the child restraint is properly
installed and that the safety belt for the
front passenger seat has been correct ly
routed around the child restraint as descr i­
bed in the child restraint manufacturer's in­
structions;
- make sure that the convertible locking re­
tractor on the safety belt for the front pas­
senger seat has been act ivated and that the
safety belt has been pulled tight. The belt
must not be loose o r have loops of slack so
that the sensor below the safety belt latch on the seat can do its job
¢ page 162 .
-make sure that things that may increase the
weight of the chi ld and child safety seat are
not being transported on the front passen ­
ger seat;
- make sure that the safety belt tension sen­
sor is not b locked. Shake the safety belt
latch on the front passenger seat back and
forth;
- If a strap or tether is being used to tie the child safety seat to the front passenger
seat, make sure that it is not so tight that it
causes the we ight-sensing mat to measure
more we ight than is actually on the seat.
If the PA SSEN GER AIR B AG OFF light st ill
do es not come o n
and does not stay on con­
tinuously (when the ignition is switched on),
- take the chi ld restraint off the front passen-
ger seat and install it properly at one of the
rear seat pos itions. Have the a irbag system
inspected by your author ized Audi dealer
i mmediately .
- move the ch ild to a rear seat posit io n and
make sure that the child is properly restrain­
ed in a child restraint that is appropriate for
its size and age.
A irbag system 143
The PAS SENGER AIR BAG OFF light should
NOT come on when the ignitio n is on and an
adult is s itting in a proper seating position on
the front passenger seat. If the
PAS SENGER
AIR BAG OFF
light comes on and stays on or
flashes for about 5 seconds wh ile driving, un­
der these c ircumstances, make sure that:
- the adult on the front passenger seat is properly seated on the center of the seat
cushion with his or her back up aga inst the
backrest and the backrest is not recl ined
¢ page 113, Proper occupant seating posi­
tions,
- the adult is not tak ing weight off the seat by
holding on to the passenger assist handle
above the front passenger door o r support ­
ing thei r weight on the armrest,
- the safety belt is being properly wo rn and
tha t the re is not a lot of s lack in the safety
be lt webbing,
- accesso ry sea t covers or cushions o r other
things that may cause an incorrect reading
or imp ression on the weight-sensing mat
under the upho lstery of the seat have been
removed from the front passenger seat,
- a safety belt extender has not been left in the safety be lt latch for the front passenger
seat.
In add ition to the
PA SSENGER AIR BAG O FF
light in the center of the instrument panel,
the message
PASSENGER A IR BAG OFF or
PASSENGER AIR BAG ON will briefly appear
in the instrument cluster disp lay. This is to in­
form the dr iver of the current front passenger
airbag status.
Important safety instructions on
monitoring the Advanced Airbag System
A WARNING
An airbag system that is not functioning
properly cannot provide supplemental pro­
tection in a frontal crash.
- If the airbag ind icator light
¢ page 19
comes when the veh icle is being used,
have the system inspected immediately
by your authorized Audi dealer.
It i s
-
•
•

144 Airbag sys tem
possible that the airba g will inf late when
it is not supposed to, or will not inflate
when it should.
A WARNING
If t he front airbag inflates, a ch ild without
a child restra int, in a rearward-facing child
safety seat or in a forward-facing child re­
straint that has not been properly insta lled
w ill be seriously injured and can be k illed.
- Even though your veh icle is equipped
with an Advanced Airbag System, make c ertain that a ll children, especially 12
years and younger, a lways ride on the
back seat properly restrained for their
age and size.
- Always instal l forwa rd or rear-facing
child safety seats on the rear seat -even
with an Advanced Airbag System.
- If you must install a rearward -fac ing
child safety seat on the front passenger
seat because of exceptional circ umstan­
ces and the
PASS ENG ER AIR BAG OFF
light does not appear and stay on, imme ­
diately install the rear-fac ing ch ild safety
seat in a rear seating position and have
the a irbag system inspected by you r au­
tho riz ed Aud i deale r.
- A tight tether or other strap on a rear­
wa rd-facing child restra int attached to
the front passenger seat can put too much pressure on the weight-sens ing
mat in the seat and register mo re weight
than is ac tually on the seat. The heavier
weight registe red can make the system
work as though an adu lt were on the seat
and dep loy the Advanced Airbag when it
must be suppressed caus ing serious or
even fatal injury to the child.
- If, in exceptional circumstances, you
must install a forward-facing child re­
st raint on the front passe nger seat, a l­
ways move the seat into its rearmost po­
sit io n in the seat's fo re and aft adjust­
me nt range, as f ar away from the airbag
as possib le. The b ackrest m ust be adjus t­
ed to an upr ight position. Make sure that the
PA
SSEN GER AIR BAG OFF light
comes on and stays on all the time when­
ever the ignition is switched on.
A WARNING
-
- If the PASSENGER AIR BAG OFF light
does not go out when an adult is sitting
on the front passenger seat after taking
the ste ps described above, make su re the
adu lt is prope rly seated and restra ined at
one o f the rea r sea ting pos itions.
- Have the airbag system inspected by
your author ized Audi dealer befo re trans­
port ing anyone on the front p assenger
se at.
(D Tips
If the weig ht-sensing mat in the front pas­
senger seat de te cts an empty seat, the
front air b ag on the p assenger side wi ll be
turned off, and
PASSENGER AIR BAG OFF
will stay on .
Repair, care and disposal of the airbags
Parts of the airbag system are installed at
many different places o n your Aud i. Insta lling,
removing, servicing or repa iring a part in an
area of the veh icle can damage a part of an
airbag system and p revent that system from
working p roperly in a coll is io n.
There are some important t hings you have to
know to make sure that the effectiveness of
the system w ill not be impaired and that dis­
ca rded components do not cause inju ry or pol­
lute the environmen t.
A WARNING
Imprope r care, serv ic ing and repair p roce­
dur es can increase the risk of personal in ­
ju ry and death by prevent ing an a irbag
from deploying when needed or dep loying
an a irbag unexpectedly:
- Never cover, obstruct , or change the
steer ing whee l horn pad or airbag cover
or the instrument panel or mod ify them
in any way .

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-Never attach any objects such as cu­
pholders or telephone mountings to the
surfaces covering the airbag units.
- For cleaning the horn pad or instrument
panel, use only a soft, dry cloth or one
moistened with plain water. Solvents or
cleaners could damage the airbag cover
or change the stiffness or strength of the
material so that the airbag cannot de­
ploy and protect properly.
- Never repair, adjust, or change any parts
of the airbag system.
-All work on the steering wheel, instru­
ment panel, front seats or electrical sys­
tem (including the installation of audio
equipment , cellular telephones and CB
radios, etc.) must be performed by a
qualified technician who has the training
and special equipment necessary.
- For any work on the airbag system, we
strongly recommend that you see your
authorized Audi dealer or qualified work­
shop.
- Never modify the front bumper or parts
of the vehicle body .
- Always make sure that the side airbag
can inflate without interference:
- Never install seat covers or replace­
ment upholstery over the front seat­ backs that have not been specifically
approved by Audi.
- Never use additional seat cushions that
cover the areas where the side airbags
inflate.
- Damage to the original seat covers or
to the seam in the area of the side air­
bag module must always be repaired
immediately by an authorized Audi
dealer.
- The airbag system can be activated only
once. After an airbag has inflated, it must be replaced by an authorized Audi
dealer or qualified technician who has
the technical information, training and
special equipment necessary.
- The airbag system can be deployed only
once. After an airbag has been deployed,
it must be replaced with new replace-
Airbag system 145
ment parts designed and approved espe­
cially for your Audi model version . Re­
placement of complete airbag systems
or airbag components must be per­
formed by qualified workshops only. Make sure that any airbag service action
is entered in your Audi Warranty
& Main­
tenance booklet under
AIRBAG REPLACE­
MENT RECORD.
- In accidents when an airbag is deployed,
the vehicle battery separates the alterna­
tor and the starter from the vehicle elec­
trical system for safety reasons with a pyrotechnic circuit interrupter.
- Work on the pyrotechnic circuit inter­
rupter must only be performed by a
qualified dealer -risk of an accident!
- If the vehicle or the circuit interrupter
is scrapped, all applicable safety pre­
cautions must be followed.
@ For the sake of the environment
Undeployed airbag modules and preten ­
sioners might be classified as Perchlorate
Material -special handling may apply, see
www .dtsc.ca.gov/hazardouswaste/per-
ch lorate. When the vehicle or parts of the
restraint system including airbag modules
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 recommend that you have your
dealer perform this service for you.
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
change the way that the Advanced Airbag Sys­
tem performs in a crash. For example, using
tire-rim combinations not approved by Audi ,
lowering the vehicle, changing the stiffness of
the suspension, including the springs, suspen­
sion struts, shock absorbers etc. can change
the forces that are measured by the airbag
sensors and sent to the electronic control unit. Some suspension changes can, for
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