wheel torque AUDI RS7 SPORTBACK 2016 Owners Manual

In extreme cases, EDL automatically switches off
to keep the brake on the braked wheel from over­
heating. The vehicle is still working correctly. EDL
will switch on again automatically when condi ­
tions have returned to normal.
Steering recommendation
The ESC helps to stabilize the vehicle by changing
the steering torque .
I n vehicles with dynamic steering*, ESC also
helps to stabilize the steering in critical situa ­
tions.
Selective wheel torque control
Selective wheel torque control is used when driv­
ing on curves. The front wheel on the inside of
the curve or both wheels on the inside of the
curve are braked selectively as needed. This al­
lows more precise driving in curves.
Automatic post-collision braking system
The "Automatic post-collision brak ing system"
can help to reduce the risk of sliding and of other
coll isions after an accident.
If the airbag control
module detects a collision above a certain vehicle
speed, the vehicle is braked by the ESC.
The vehicle does not brake automatically if:
- the driver presses the accelerator pedal, or
- the braking force generated by the pressed
brake pedal is greater than the brak ing force
that would be initiated by the system, or
- the ESC, the brake system or the vehicle electri­
cal system are not function ing .
Switching on /off
Intelligent Technology
A WARNING
-- The ESC and its integrated systems cannot
overcome the limits posed by natural physi­
cal laws. This is especia lly important on slip­
pery or wet roads. If the systems begin act­
ing to stabilize your vehicle, you should im­
mediately alter your speed to match the
road and traffic conditions. Do not let the
increased safety provided tempt you into
taking r isks. This cou ld increase your risk of
a collision .
- Please note the risk of a collision increases
when driving fast, especially through curves
and on slippery or wet roads, and when dr iv­
ing too close to objects ahead. The ESC and
its integrated systems cannot always pre­
vent collisions -there is still a risk of acci­
dents!
- Press the accelerator pedal carefully when
accelerating on even, slippery surfaces such
as ice and snow. The dr ive wheels can spin
even when these control systems are instal­
led and this can affect driving stability and
i n crease the risk of a collision .
(j) Tips
-ABS and ASR only function correctly when
all four wheels are equipped with identical
tires. Different tire sizes can lead to a reduc­
tion in engine power.
- You may hear noises when the systems de­
scribed are working.
£SC turns on automatically when you start the engine.
Fig. 175 Center console: OFF~ button
The ESC is designed to function in levels. Depend­
ing on the level that is se lected, the stabilization
function of the ESC is limited or switched off. The amount of stabilization control will differ de­
pending on the level.
The following examples are unusual situations
where it may make sense to switch sport mode on in order to allow the wheels to spin:
- Rocking the vehicle to free it when it is stuck ..,.
181

Intelligent Technology
-Driving for an extended period of time on
salt-covered roads without using your
brakes can also affect braking efficiency .
Clean off accumulated salt coating from
brake discs and pads with a few careful
brake applications .
- If you damage the front spoiler, or if you in­ stall a different spoiler, be sure the air flow
to the front brakes is not obstructed. Other­
wise the brake system could overheat reduc­
ing the effectiveness of the entire brake sys­
tem.
- Failure of one brake circuit will impair the
braking capability resulting in an increased
stopping distance. Avoid driving the vehicle
and have it towed to the nearest Audi dealer
or qualified workshop.
- Never let the vehicle roll to a stop with the
engine shut off.
- If the brake booster is not working, the
brake pedal must be pressed considerably
harder to make up for the lack of booster
assistance.
Electromechanical
steering, dynamic
steering
The electromechanical steering supports the
driver's steering movements.
Power steering adapts electronically based on
the vehicle speed .
Indicator lights and messages
• Do not drive vehicle: Steering defective
If this indicator light turns on and stays on and
this message appears, the power steering may
have failed .
Stop the vehicle in a safe location as soon as pos­
sible. Do
not continue driving. See an authori zed
Audi dealer or authorized Audi Service Facility for
assistance.
'Jij Steering: System fault You can continue
driving
184
If the indicator light turns on and the message
appears, the steering may be more difficult to move or more sensitive than usual. The steering
wheel may also be at an angle when driving
straight.
Drive slowly to your authorized Audi dealer or au­
thorized Audi Service Facility to have the mal­
function corrected.
':r-ij Dynamic steering: Initializing
If the indicator l ight is blinking and this message
appears, dynamic steering* is being initialized.
The steering wheel will be easy to move after
starting the engine. Re-initialization might be
necessary if the steering wheel was moved hard
to the left and right while the veh icle was not
moving. The display turns off if the initialization
was successful.
(D Tips
- If the . or ':r-ij indicator light only stays on
for a short time, you may continue driving.
- The dynamic steering stability systems
opage 180 are not availab le in the event of
a system malfunction.
- For additional information on dynamic
steering, refer to
c> page 95.
All wheel drive (quattro)
Applies to: vehicles with all wheel drive
In all wheel drive, all four wheels are powered.
General information
In all wheel drive, the driving power is divided be­
tween all four wheels. This happens automatical­
ly depending on your driving behavior as well as
the current road conditions. Refer to
c> page 180,
Electronic Stabilization Control (£SC).
A center differential distributes the driving power
variably to the front and rear axle. It works to­
gether with selective wheel torque control, which
activates when driving through curves
<=> page 181 . With the sport differential*, power
distribution to the rear wheels is variable and can
be adjusted with drive select
q page 95 . .,..

Emergency assistance
Equipment
Warning triangle
Applies to: ve hicles with warning triangle
D
Fig. 196 Luggage co mpa rtment lid : w arnin g tria ngle
The warning triangle placed in the vehicle at the
factory is located in the luggage compartment.
• Turn the twist lock ¢
fig. 196 and pull the cover
downward to open the cover .
• Remove the warning triangle from its holder.
The luggage compartment lid is only designed to hold the warning triang le offered by the original
accessories program.
Vehicle tool kit
F ig. 197 Luggage co mpa rtment : veh icle tool kit
The vehicle tool kit , vehicle jack*, tire mobi lity kit
and compressor are stored in the luggage com ­
partment under the cargo floor cover .
• Lift the cargo floor by the plastic handle.
• Turn the handle counter-clockwise and remove
the cover .
Emergen cy a ssis tanc e
A WARNING
-Improper use of the veh icle jack can cause se-
rious pe rsonal injuries.
- Never use the screw driver hex head to
tighten wheel bolts, since the bolts cannot
attain the necessary tightening torque if you
use the hex head, potentially causing an ac­
cident.
- The factory-supplied jack is intended only
for your veh icle model. Under no circum­
stances s hou ld it be used to lift heavy
veh icles o r othe r loads; you risk in juring
yourse lf .
- Neve r start the engine when the ve hicle is
raised, which co uld cause an acciden t.
- Support the vehicle securely with appropri­
ate stands if work is to be pe rformed under­
neath the vehicle; otherwise, there is a po ­
t ential risk for injury .
- Neve r use the ja ck supplied w ith your Aud i
on anot her vehicle, particularly on a heavier
one. The jack is only s uitable for use on the
vehicle it came with.
(D Tips
The vehicle jack* in your vehicle is m ainte­
nance -free .
Tire repair set
General and safety pointers
Tire repair is intended only for temporary, short­
term use.
F ig. 198 Tire damage for wh ich the Tire Mob ility Sys tem is
not s uited
IIJI,
239

Emerg ency assis ta nce
After changing a wheel
A wheel change is not complete without the do­
ing the following.
• Always store the vehicle tool kit, the jack* and
the replaced tire in the luggage compartment
<=>page 124.
• As soon as possible, have the tightenin g tor­
qu es
on all whee l bolts checked with a torque
wrench. The correct tightening torque is 90 ft lb (120 Nm).
• Have the flat tire
replac ed as soon as possible.
(D Tips
- If yo u notice that the whee l bolts are cor­
roded and difficu lt to turn wh ile changing a
tire, they should be replaced before you
check the tightening torque.
- Drive at reduced speed until you have the
tightening torques checked .
- After changing a w heel, the tire pressure in
a ll four tires must be checked/corrected and
the tire pressure monitoring indicator must be stored in the MMI
c> page 23 7.
Wheels with wheel bolt caps
A ppl ies to: ve hicles w ith whee l bolts w it h ea ps
The caps must be removed first from the wheel
bolts before the bolts can be unscrewed .
Fig. 201 Chang ing a wheel : removing the whee l bo lt caps
Removing
• Push the
pla stic clip (provided with the veh icle
tool kit) over the wheel bolt cap unt il the inner
retainers on the clip align wit h the edge of the
cover.
244
• Remove the cap with t he pla stic clip (vehicle
tool kit)
c> fig. 201.
Refitt ing
• Place t he caps over the wheel bolts and push
them back on.
The caps are to protect and keep the wheel bo lts
clean.
Loosening and tightening the wheel bolts
The wheel bolts must be loosened before raising
the vehicle .
Fig. 202 Chang ing a whee l: loosening the wheel bolts
Lo ose ning
• Slide the
w hee l w ren ch onto the wheel bo lt as
far as it will go.
• Take tight hold of the
end of the wrench hand le
and turn the wheel bolts
count er-clo ckwis e
about one single turn in the direction of arrow
¢fig. 202.
Tightening
• Slide the wheel wrench onto the wheel bo lt as
far as it will go.
• Take tight hold of the
end of the wrench handle
and turn each wheel bolt
clockwis e until it is
seated .
_&. WARNING
- Do not use force or hurry when changing a
wheel -you can cause the veh icle to slip off
the jack and cause serious persona l injuries.
- Do not loosen the wheel bo lts more than
one turn
before you raise the veh icle w ith
the jack. -You r is k an injury.

~ Then remove the other wheel bolts as described above.
~ Takeoff the wheel leaving the a lignment pin in
the bolt ho le ¢ (D.
Putting on th e oth er w heel
~ Lift the whee l and carefully slide it over the
alignment pin to guide it in place ¢(D.
~ Use the hexagonal socket in the screwdriver
handle to screw in and tighten all whee l bolts
sligh tly.
~ Remove the alignment pin and insert and tight­
en the remaining wheel bolt slightly like the
rest .
~ Turn the jack handle counter-clockwise to lower
the vehicle until the jack is fu lly re leased.
~ Use the wheel bolt wrench to tighten all wheel
bolts firmly ¢
page 244 . Tighten them cross ­
wise,
from one bolt to the (approximately) op­
posite one, to keep the whee l centered .
When removing or installing the whee l, the
rim could hit the brake rotor/ceramic brake
rotor* and damage the rotor. Work carefully
and have a second person help you.
(D Tips
Never use the hexagonal socket in the handle
of the screwdriver to loosen or tighten the
wheel bo lts.
- Pu ll the reversible blade from the screwdriv­
er before you use the hexagonal socket in
the handle to turn the wheel bo lts.
- When mounting tires w ith
u nidirectio nal
tre ad design
make sure the tread pattern is
po inted the r ight way ¢
page 247.
-The wheel bolts should be clean and easy to
turn . Check for d irt and corrosion on the
mating surfaces of both the wheel and the
hub . Remove all dirt from these surfaces be ­
fo re remo unt ing the wheel.
Em ergenc y ass is tanc e
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the
right direction .
Using a repl acement t ire w ith a tread pattern
intend ed for use in a sp ecific direction
When using a rep lacement tire with a tread pat­
tern intended for use in a spec ific d irection ,
please note the follow ing:
- The direction of rotation is marked by an arrow
on the side of the tire .
- If the replacement tire has to be installed in
the incorrect direction, use the replacement tire only temporarily s ince the t ire w ill not be
ab le to achieve its optimum perfo rmance char­
acter istics with rega rd to aquap lan ing, no ise
and wear.
- We recommend that you pay pa rt icu lar atten­
tion to th is fact d uring wet weather and that
you adjust your speed to match road cond i­
tions .
- Rep lace the flat tire w ith a new one and have it
installed on your veh icle as soon as possib le to
restore the hand ling advantages of a unidirec­
tional tire.
Notes on wheel changing
Please read the information ¢ page 225, New
tires or wheels
if you a re go ing to u se a replace­
ment t ire wh ich is different from the t ires on
you r vehicle .
After you change a tire:
- Check the tire pre ssure on the r epl acement
tire immed iatel y afte r in st a llat ion .
- Have th e whe el bolt tight ening torqu e
c hecked with a torque w rench as s oon as pos­
s ible b y your authorized Audi de aler o r a
qualified ser vice st ation.
- With steel and allo y wheel rim s, the wheel
bolt s are co rr ectl y ti ghtened at a torque of 90
ft lb
( 1 20 Nm) .
-If you notice that the wheel bolts are corroded
and diffi cult to turn while changing a ti re ,
the y should be r eplaced before you chec k the
tightening torque. ..,.
247