ECU AUDI S7 2015 Owner's Guide

186 Child Safety
-Always be especially careful if you must
install a rearward facing child safety seat
on the front passenger seat in exception­
al circumstances.
- Make sure that the
PASSENGER AIR BAG
OFF
light comes on and stays on all the
time whenever the ignition is switched
on.
- If the
PASSENGER AIR BAG OFF light
does not come on and stay on, immedi ­
ately install the rear-facing child safety
seat in a rear seating position and have
the airbag system inspected by your Audi dealer.
Activating the convertible locking retractor
Use the convertible locking retractor to se­
cure a child restraint.
Always heed the child safety seat manufactur­
er's instructions when installing a child re­
straint in your vehicle. To activate the conver­
tible locking retractor:
"" Place the child restraint on a seat, prefera­
bly on the rear seat.
""Slowly pull the belt
all the way out.
""Route it around or through the child re­
straint belt path¢,&. .
"" Push the child safety se at down with you r
full weight to get the safety belt really tight.
"" Insert the belt tongue into the buckle for
that seating position.
""Guide the safety belt back into the retractor
until the belt lies flat and snug on the child
safety seat.
""You should hear a "clicking" noise as the
belt winds back into the inertia reel. Test the
convertible locking retractor by pulling on
the belt. You should no longer be able to
pull the belt out of the retracto r. The con­
vertible locking retractor is now activated.
"" Make sure that the red release button is fac ­
ing away from the child restraint so that it
can be unbuckled quickly .
""Pull on the belt to make sure the safety belt
is properly tight and fastened so that the seat cannot move forward or sideways more
than one inch (2.5 cm).
A WARNING .,__
Using the wrong child restraint or an im­
properly installed child restraint can cause
serious personal injury or death in a crash.
- Always make sure that the safety belt re-
tractor is locked when installing a child
safety seat. An unlocked safety belt re­
tractor cannot hold the child safety seat
in place during normal driving or in a
crash.
- Always buckle the child safety seat firmly
in place even if a child is not sitting in it.
A loose child safety seat can fly around
during a sudden stop or in a crash.
- Always make sure the seat backrest to
which the child restraint is installed is in
an upright position and securely latched
into place and cannot fold forward. Oth­
erwise, the seatback with the child safety
seat attached to it could fly forward in
the event of an accident or other emer­
gency situation.
- Always read and heed all WARNINGS
whenever using a child restrained in ave­
hicle is being used
¢ page 173. Special
precautions apply when installing a child
safety seat on the front passenger seat
¢ page 149, Child restraints on the front
seat -some important things to know.
Deactivating the convertible locking
retractor
-
The convertible locking retractor for child re­
straints will be deactivated automatically when the belt is wound all the way back into
the retractor.
"" Press the red button on the safety belt buck­
le. The belt tongue will pop out of the buck­
le.
""Guide the safety belt all the way back into
its stowed position .
Always let the safety belt retract completely
into its stowed position. The safety belt can
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now be used as an ordinary safety belt with ­
out the convertible locking retractor for child
restra ints.
I f the convertible locking retractor shou ld be
activated inadvertently, the safety belt must
be unfastened and guided completely back in­
to its stowed position to deactivate this fea ­
ture.
If the convertib le locking retractor is not
deactivated, the safety belt will gradually be­
come tighter and uncomfortable to wear .
A WARNING
Improperly installed child safety seats in­
crease the risk of ser ious personal injury
and death in a collision.
- Never unfasten the safety belt to deacti­
vate the convert ible lock ing ret ractor for
c hild restraints while the veh icle is mov­
ing. You would not be restrained and
cou ld be ser iously injured in an accident.
- Always read and heed all WARN INGS
whenever using a child rest rained in ave­
hicle is being used
¢page 173. Special
precautions apply when installing a chi ld
safety seat on the front passenger seat
¢ page 149, Child restraints on the front
seat -some important things to know.
LATCH Lower
anchorages and tethers
for children
Child Restraint System anchors and how
are they related to child safety
To provide a s imp le r and more pract icable way
to attach the ch ild res traint on the veh icle
seat, Federa l regu lations require specia l lower
anchorages in vehicles and devices on new
chi ld restraints to attach to the vehicle ancho­
rages.
The combination of the tether anchorages and
the lower anchorages is now generally called
the
LA TCH system for "Lower Anchorages and
T ethers for Children."
F orward- facing child restraints manufactured
after September 1, 1999, are required by U.S.
Child Sa fet y 187
federa l reg ulations to comply with new child
head movement performance requirements.
These new performance requirements make a
tether necessary on most new child seats.
Installing a ch ild restra int that requires a top
tethe r without one can seriously impair the
performance of the c hild restra int and its abil ­
ity to protect the child in a collis ion. Insta lling
a child restraint that requires a top tether
without the top tether may be a violat ion of
state law.
Child restraint manufacturers offer LATCH
lower anchorages on their child seats with
hook-on or push-on connectors attached to
adjustable straps.
In add ition to the LATCH lower anchorages,
these child restraint systems usually require
the use of tether straps to help keep the ch ild
restraint firmly in place.
A WARNING
Imp roper installat ion of child restra ints
will increase the r isk of injury a nd death in
a cr ash.
- Always follow the instr uctions provided
by the manufa cture r of the child re­
s traint yo u intend to install in your vehi­
cle.
- Never inst all a child restraint withou t a
properly attached top tether strap if the
child restraint manufacturer's instruc ­
tions require the top tether strap to be
used.
- Improper use of child rest raint LATCH
lowe r ancho rage points can lead to injury
in a collision. The LATCH lower anchorage
points are designed to withstand on ly
those loads imposed by correctly fitted
child restraints.
- Never mount two child restra int systems
on one LATCH lower anchorage point.
- Never secure or attach any luggage or
other item to the LATCH lower anchorag-
-
es. Ill-
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188 Child Safet y
@ Tips
-In Canada, the terms "top tether" with
"lower universa l anchorages" (or "lower
universal anchorage bars") are used to
describe the system.
- In other countries, the term "ISO FIX" is
used to describe the lower anchorages.
Location
Fig . 176 Schematic overview: LATCH ancho rage point
l ocat ions
The illustration shows the seating locations in
your veh icle which are equipped w ith the low­
e r anchorages system.
Description
The lower anchorage positions are marked
for quick locating .
Fig. 177 Lower anchorages, covers marked
Fig. 178 Rea r seats: lower anchorage bracket locat ions
L o w er anch orage s
The circular markings on the rear seat help
you to ident ify the location of lower anchorag ­
es for the two outboard seating positions
~ fig . 177. The LATCH lower universal ancho r­
age a ttachment po ints are between the rear
seatback and rea r seat cushion .
Remove the covers~
fig. 177 to access the
lower anchorage attachment points.
The lower anchorage attachment points are
vis ible
c:> fig . 178.
Lower anchorages secure the child restraint in
the seat without using the vehicle 's safety
belts. Anchorages provide a secure and easy­
to -use attachment and minimize the possib ili­
ty of improper child rest ra int installation .
All child restraints manufactured after Sep­
tember 1, 2002, must have lower anchorage
attachments for the
LATCH system.
Please remember that the lower anchorage
po ints are only intended for installation and
attachment of child restraints spec ifically cer­
tified fo r use with
LATCH lower anchorages.
Child rest raints that are not equ ipped with the
lower anchorage attachments can still be in­
sta lled in compliance w ith the ch ild restra int
manufactu rer's instr uctions on using veh icle
safety belts .
A WARNING
-
Improper use of LATCH lower anchorages
can cause serious persona l injury in an ac ­
cident.
- Always carefu lly follow the child re ­
straints manufacturer's instructions for

proper installation of the child restraint
and proper use of the lower anchora ges
or safety belts in your vehicle.
- Never secure or attach any luggage or
other items to the LATCH lower ancho­
rages.
- Always read and heed the important in­
formation about child restraints in this
chapter and WARNINGS ¢
page 173,
Child Safety.
Installing a child restraint with LATCH
lower anchorages
Whenever you install a child restraint always
follow the child restraint manufacturer's in­
structions.
Fig. 179 Lower anchorages: p roper mo unting
Mounting
.. Make sure the seatback of the rear seat
bench is in the upright position and securely
latched in place.
.. Attach both hook-on connectors with the
spring catch release on the child safety seat
onto the LATCH lower anchorage so that the
connectors lock into place¢
fig. 179 .
.. Pull on the connector attachments to make
s ure they are properly attached to the LATCH
lower anchorage .
.. Pull straps tight following the child restra int
manufacturer's instructions.
Releasing
.. Loosen the tension on the straps following
"' the child restraint manufacturer's instruc-
N
i3 tions.
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Child Safety 189
.. Depress the spring catches to release the
anchorage hooks from the lower anchorag­
es.
Remember: Use tether straps to help keep the
child restraint firmly in place.
& WARNING ~
Improper use of the LATCH system can in-
crease the risk of serious personal injury
and death in an accident.
- These anchors were developed only for
child safety seats using the "LATCH" sys­
tem.
- Never attach other child safety seats,
belts or other objects to these anchors.
- Always make sure that you hear a click
when latching the seat in place. If you do
not hear a click the seat
is not secure and
could fly forward and hit the interior of
the vehicle, or be ejected from the veh i­
cle .
& WARNING
Improper installat ion of child restraints
will increase the risk of injury in an acci­
dent.
- Always follow the child restraint system
manufacturer's instructions for proper
installation of the child restraint system
and proper use of tether straps as well as
the lower anchorages or safety belts in
your vehicle .
-Always read and heed the important in­
formation and WARNINGS about child safety and the installation of child re­
straint systems¢
page 173, Child Safe­
ty.
-

190 Child Safe ty
Tether anchors and tether straps
Fig. 180 Tether ancho rs: attachment hook locations
behind the rear seatbacks
The tether anchors for the two/three* rear
seating positions are located o n the backside
of the rear seatbacks
¢ fig. 180 . Vehicles with
two rear seating positions are equipped with
two tether anchors.
A tether is a straight or V-shaped strap that attaches the top part o f a child restraint to
specia l anchorage points in the veh icle.
The purpose of t he tether is to reduce the for­
ward movemen t of the ch ild restra int in a
crash, in order to help reduce the risk of head
injury that could be caused by striking the ve ­
hicle interior.
F orward facing child rest ra ints manufactured
after September 1, 1999, are required by U.S.
federal regulations to comply with new child
head movement performance requirements .
These new performance requirements make a
tether necessary on most new child safety
seats.
A WARNING
Improper insta llation of chi ld restraints
w ill increase the risk of inju ry and death in
a crash.
- Always follow the instructions prov ided
by the manufacturer of the ch ild re­
st rain t you intend to install in your Audi.
- Improper use of ch ild restra int anchors
(including tether anchors) can lead to in­
jury in a co llision. The anchors are de­
signed to w ithstand on ly those loads im ­
posed by corre ctly fitted ch ild restraints. -
Never mount two child restraint systems
on one LATCH lower anchor point.
- Never attach two child restraint systems
to one tether strap or tether anchorage.
- Never attach a tether strap to a tie-down
hook in the luggage compa rtment .
- Never use child restraint tether ancho ­
rages to secure safety belts or other
kinds o f occupant restraints.
- Never secure or attach any luggage or
other items to the LATCH lower ancho­
rages or to the tether anchors.
- If you must install a rearward fac ing
child safety seat on the front passenger
seat because of exceptiona l circumstan­
ces and t he
PA SSENGER AIR BAG OFF
light does not come o n and stay on, im­
mediately install the rear-fac ing ch ild
safety seat in a rear seating position and
have the airbag system i nspe cted by your
Aud i deale r.
Installing the upper tether strap on the
anchorage
F ig. 181 Tether strap: proper routing and mou nting
Installing the tether st rap
• Release or deploy the tether strap on the
child restraint according to the child re­
s traint manufacture r's instructions.
• Guide the upper te ther s trap
und er the rear
head restraint¢
fig. 181 (raise the head re ­
straint if necessary) .
• Attach the tether strap ancho rage hook into
the tether anchorage.
.,. Pull on the tether strap hook so that the
spring catch of the hook engages.
• Tighten the tether strap firmly follow ing the
child restraint manufacturer's instructions. ..,

208 Trailer towing
Trailer towing
Driving with a trailer
General information
Your Audi was designed primarily for passen­
ger transportation .
If you plan to tow a trailer, p lease remember
that the additional load will affect durability,
economy and performance .
Trailer towing not on ly places more stress on
the vehicle, it also calls for more concentra­
tion from the driver.
For this reason, always follow the operating
and driving instructions provided and use
common sense.
@ Note
If you are going to tow a trai ler, you must
activate the trailer operation mode
c:::> page 208, Operating instructions.
Technical requirements
Trailer hitch
Use a weight-carrying hitch conforming to the
gross trailer weight. The hitch must be suita­ ble for your vehicle and trailer and must be
mounted securely on the vehicle's chassis at a
technically sound location . Use only a trailer
hitch with a removable ball mount. Always
check with the trailer hitch manufacturer to
make sure that you are using the cor rect
hitch.
Do not use a bumper hitch.
The hitch must be installed in such a way that
it does not interfere with the impact-absorb­
ing bumper system. No modifications should
be made to the vehicle exhaust and brake sys­
tems . From time to time, check that all hitch
mounting bolts remain securely fastened.
When you are not towing a trailer, remove the
trai ler hitch ball mount. This prevents the
hitch from causing damage should your vehi­
cle be struck from behind
c:::> A.
Trailer brakes
If your trailer is equipped with a brakin g sys­
tem, check to be sure that it conforms to all
regulations.
T he trailer hydraulic brake system must not be
directly connected to the vehicle's hydraulic
brake system .
Safety chains
Always use safety chains between your veh icle
and the trailer.
Trailer lights
Trailer lights must meet all regulations. Be
sure to check with your Audi dealer for correct
wiring, switches and relays.
Mirrors
If you are unable to see the traffic behind you
using the regular outside mirrors, then you
must install extended mirrors. It is important
that you
always have clear v is ion to the rear .
A WARNING
--
After removing the trailer hitch, do not
store it in your vehicle . In case of sudden
braking, the hitch could fly forward and in­
jure you or your passengers.
Operating instructions
Maximum trailer weight
A trailer for your vehicle is limited to a typical
class 1 or class 2 trailer.
Trailer load distribution
Be sure the load in the trailer is held securely
in place to prevent it from shift ing forward,
backward or sideways.
Never allow a passenger to ride in a trailer
c:::> A in Driving instructions on page 210.
Engine cooling system
Towing a trailer makes the engine work hard­
er . It is important that the cooling system 's
performance is up to the additional load.

226 Check ing and filling
- Always disconnect the battery.
- Never smoke or work near heaters or open flames . Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and persona l in ­
jury while the engine is running or being started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repa ir
with the engine running:
- Fi rst, fully apply the parking bra ke,
move se lec to r lever to P (Pa rk) .
- Always use extreme caution to preven t
clot hing, jewe lry, or long h air from ge t­
ting caught in the radiator fan, V -belts
or other moving parts, or from contact­ ing hot parts. Tie back hair before
start ing, and do not wear cloth ing that
will hang or droop into the eng ine.
- Min imize exposure to emission and
chemica l hazards¢ ,&..
A WARNING
California Propos ition 65 Warning:
- Engine exhaust, some of its constituents,
and certa in veh icle components conta in
or emit chemicals known to the State of
Califor nia to cause cancer and b irth de­
fec ts a nd reproduct ive ha rm. In addition,
certain fluids conta ined in vehicles and
certa in prod ucts of co mponent wear co n­
ta in o r emi t chemicals known to the
State o f Ca lifornia to cause can cer and
birth defects or ot her reproductive harm. -
Battery posts, terminals and re lated ac­
cessories conta in lead and lead com­
pounds, chemicals known to the State of
California to cause cance r and reproduc­
tive harms. Wash hands after handling .
(D Note
When adding flu ids, always make sure that
they are poured into the proper conta iner
or f iller opening, otherwise serious dam­
age to vehicle systems w ill occur.
® For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly. If
you see spots from oil or other ve hicle flu­
i ds, have yo ur vehicle inspected by a n au­
thori zed Audi dea le r.
Closing the engine hood
.,. Pull the hood down un til the pressure from
t he struts is reduced.
.,. Let the hood
drop down and latch in p lace .
Do not try to push it shut; it may fail to en­
gage ¢&_ .
A WARNING
-
A hood that is not completely latched
could fly up and b lock your view while dr iv­
ing.
- When you close the engine hood, check it
to make sure the safety catch has p roper­
ly engaged. The hood sho uld be flush
with the surrou nding vehicle body pa rts.
- If you notice while driv ing t hat the hood
is not s ecured prope rly, stop at onc e and
close it.

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tire failure and loss of
control.
-Excessive speed and/over­ loading can cause heat
build -up, sudden tire failure
and loss of control.
-If the tire pressure is too low or too high, the tires
will wear prematurely and
the vehicle will not handle
well.
-If the tire is not flat and you do not have to change a
wheel immediately, drive at
reduced speed to the near­
est service station to check
the tire pressure and add air as required.
(D Note
Driving without valve stem
caps can cause damage to
the tire valves. To prevent
this, always make sure that
factory installed valve stem caps on all wheels are secure­
ly mounted on the valve.
@ For the sake of the environment
Underinflated tires will also
increase the fuel consump­
tion.
Tires and wheels 255
Tires and vehicle load limits
'
There are limits to the amount of load or weight that any vehi­
cle and any tire can carry. Ave­
hicle that is overloaded will not
handle well and is more diffi­
cult to stop. Overloading can
not only lead to loss of vehicle
control, but can also damage important parts of the vehicle
and can lead to sudden tire fail­
ure, including a blowout and
sudden deflation that can cause
the vehicle to crash.
Your safety and that of your passengers also depends on
making sure that load limits are
not exceeded. Vehicle load in­
cludes everybody and every­
thing in and on the vehicle .
These load limits are technical­ ly referred to as the vehicle's
Gross Vehicle Weight Rating
("GVWR").
The "GVWR" includes the
weight of the basic vehicle, all
factory installed accessories, a
full tank of fuel, oil, coolant and other fluids plus maximum ""
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Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of wheel bolts is matched to the
factory installed r ims. If differen t rims are fit­
ted, the correct wheel bolts with the right l ength and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
securely and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bo lts from a different vehicle -eve n if it
i s the same model
~ page 296.
_&. WARNING
Improperly tig htened or maintained whee l
bolts can become loose ca using loss of
contro l, a co llision and serious persona l in­
jury.
- Always keep the wheel bolts and the threads in the wheel hubs clean so the
whee l bolts can turn easily and be prop­
erly t ightened.
- Never grease or oil the wheel bo lts and
the threads in the wheel hubs. They can become loose wh ile driving if greased or
o iled, even if tightened to the specif ied
torque .
- Only use wheel bolts that belong to the
rim being installed.
- Never use different whee ls bolts on your
vehicle .
-Always maintain the correct tighten ing
torque for the wheel bo lts to reduce the
risk of a wheel loss . If the tightening tor ­
que of the wheel bolts is too low, they
can loosen and come out when the vehi­
cl e is moving.
If the tightening torque is
too high, the whee l bolts and threads
can be damaged and the wheel can be­
come loose.
Q;) Note
The spec ified torque fo r the wheel bo lts is
90 ft lb (120 Nm) w ith a toleran ce of± 7,4
ft lb(± 10 Nm). Torque wheel bo lts diago-
Tire s an d wheel s 269
nally . After changing a whee l, the torq ue
must be checked as soon as possible with a
torque wrench -preferably by an author­
i zed Audi dealer or qualif ied workshop.
Low aspect ratio tires
Your Audi is factory-equ ipped w ith low aspect
ratio tires . These tires have been thoroughly
tested and been selected specifically for your model for their superb perfo rmance, road fee l
and hand ling u nder a variety of driving condi­
tions . Ask your au thorized Aud i dealer for
more details .
T he low aspect ratio of these t ires is ind icated
by a numera l of
55 or l ess in the tire's si ze
designation. The n umera l represents the ra tio
of the ti re's sidewall height in relation to its
tread width expressed in percentage . Conven­
tiona l tires have a height/width ratio of 60 or
more.
The perform ance o f low-a spe ct-r atio tire s is
p ar ticul arl y s ens it iv e to imp ro per infl ation
pressur e. It is t herefo re im porta nt t hat low
a spect ratio t ires are inflat ed to the specified
pr essure and that the inflation pressure is
r e gularly checked and ma int ained. Tire pr es­
s ure s should be check ed at lea st on ce a
month and alwa ys befor e a long trip
~ page 252 , Checking tire pressure.
What you c an do to avoid tire and rim
damage
Low aspect ratio tires can be damaged more
easily by impact w it h potholes, curbs, gull ies
o r r idges on the road, pa rtic ularly if the tire is
u nder infla ted .
In order to minimize the occurrence of impact
damage to the tires of your vehicle, we recom­
mend that you observe the following p re ca u­
tions:
- Always ma inta in recommended inflation
p ressures . Check your tire pressu re eve ry
2 ,000 miles (3,000 km) and add air if neces­
sary .
- Dr ive caref ully on roads wi th potholes , deep
gullies o r ridges. The impact from driv ing ..,. •
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What do I do now? Emergency warning
triangle
App lies to vehicles: with emerge ncy warning triangle
The warning triangle is located on the inside
of the trunk lid .
D -
!I l
Fig. 207 Trunk lid: Warn ing triang le
.,. To open the cover, turn the locking mecha­
nism and pull the cover downward .
"' M ~
~ .. m
.,. Remove the warning triangle from its hold ­
er .
The rear lid is only designed to hold the warn­
ing triangle offered by the original accessories
program. If you would like to retrofit your ve­
hicle with a warning triangle, please contact
your authori zed Audi dealer.
Vehicle tool kit
Vehicle tool kit and jack
The vehicle tool kit is located in the luggage
compartment under the cargo floor cover.
Fig. 208 Luggag e compa rtm en t: ca rgo floo r cov er
fol ded upwa rd /spa re tir e
What do I do now? 273
Fig . 209 Tru nk l id: Ve hicle too l kit
.,. Fold the floor to the seatback with the help
of the handle .
.,. Turn the handwheel counter-clockwise
q fig. 208 and remove the spare tire to
reach the vehicle tool kit.
T he onboard tool kit includes:
- Hooks to remove the whee l covers*
- Plastic hook to remove wheel bolt covers*
- Wheel bolt wrench
-Alignment pin for changing wheels
- Screwdriver with reversible blade
- Tow ing eye
-Jack
Before storing the jack, make sure it is wound
back down as far as it will go.
A WARNING
Im proper use of the vehicle jack can cause
serious personal injuries .
- Never use the screw driver hex head to
tighten w heel bolts, since the bolts can­
not attain the necessary tightening tor­
que if you use the hex head, potentially
causing an accident .
- The factory-supplied jack is intended on­
ly for your vehicle model. Under no cir­
cumstances should it be used to lift
heavy vehicles or other loads; yo u risk in­
juring yo urself.
- Never start the engine when the vehicle
is raised, which could cause an accident.
- Support the vehicle securely with appro­
pria te stands if wor k is to be performed
underneath the vehicle ; otherwise, there
is a potential risk for injury. ..,.