wheel torque AUDI R8 SPYDER 2015 Owners Manual

.... N
l'­
N "1: .... I.O
"' N
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heavy loads. This can result in increased
wear .
- The Launch Control Program only funct ions
when the parking brake is released and the
vehicle speed is less than 3 mph (5 km/h).
S tronic
Description
Applies to vehicles: with S tronic
Fig. 84 Shift pattern
Fig. 85 Display : selected gea rs
Your vehicle is equipped with an electronically­
controlled manual transmission called S tronic .
Two independent clutches transfer the power be­
tween the eng ine and transmission. They replace
the torque converter used in conventional auto­
mat ic transmissions and allow the vehicle to ac­
celerate without a noticeable interruption in trac­
tion .
The selected mode of operation, the gear engag­ ed and the sport function are shown in the Dr iver
Information System display ¢
fig. 85.
M -Manual operation
In this operating mode, you shift the forward
gears using the selector lever
r=>v page 76 or the
Transmission
shift paddles on the multifunction steering wheel
¢ page 78.
A - Automatic operation
In this operating mode, the forward gears are
shifted up or down depending on engine load and
vehicle speed
¢ page 77.
R- Reverse
Only s hift into reverse gear when the vehicle is
stationary and the engine is runn ing at idle
speed ¢
Li')...
To engage reverse gear, you have to press the
brake pedal, move the selector lever to the right
and t ip it towards
R. In reverse gear, the backup
lights illuminate when the ignition is on .
N -Neutral
To engage neutral, you have to move the selector
lever to the left or to the right . If reverse gear is
engaged,
move the selector lever to the left . If a
forward gea r is engaged, move the selector lever
to the right.
Sport function
The sport function is switched on by pressing the
I SPORT ! button on the selector lever cover . Up ­
shifting at a higher RPM makes full use of the en­
gine's power . Shift time is decreased and acceler­
ator pedal response is improved . In addition, in
manua l operation the engine does
not shift au to­
matically into the next gear before it has reached
the maximum permissible engine speed. In auto ­
matic operation, upshifting continues automati­
cally.
P -Automatic parking lock
The automatic parking lock is engaged immedi­
ately after you remove the key. The automatic
parking lock is also engaged if you turn off the
engine while in the A, R, or manual mode posi­
tions .
If you turn off the engine while in the N position
and leave the vehicle key in the ignition, the
transmission remains in the N position for ap­ proximately 20 minutes and then activates the
automatic parking lock . If vehicle movement is
detected within that 20 minutes based on
IIJI.
75

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CD Note
-Remove snow chains before driving on roads
not covered with snow to avoid damaging
tires and wearing the snow chains down un­ necessarily.
- Snow chains, which come into direct contact
with the wheel rim, can scratch or damage
it. Therefore, make sure that the snow
chains are suitably covered . Check the posi­
tion of the snow chains after driving a few
yards and correct if necessary. Follow the in­
structions from the snow chain manufactur­
er when doing so.
(j) Tips
Where snow chains are mandatory on certain
roads, this normally also applies to vehicles
with all-wheel drive.
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of wheel bolts is matched to the fac­
tory installed rims. If different rims are fitted,
the correct wheel bolts with the right length 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
bolts from a different vehicle -even if it is the
same model ¢
page 217.
A WARNING
Improperly tightened or maintained wheel
bolts can become loose causing loss of con­
trol, a collision and serious personal injury.
-
- Always keep the wheel bolts and the threads
in the wheel hubs clean so the wheel bolts
can turn easily and be properly tightened.
- Never grease or oil the wheel bolts and the
threads in the wheel hubs. They can become
loose while driving if greased or oiled, even
if tightened to the specified torque.
- Only use wheel bolts that belong to the rim
being installed.
Tires and wheels
- Never use different wheels bolts on your ve­
hicle.
- Always maintain the correct tightening tor­
que for the wheel bolts to reduce the risk of
a wheel loss. If the tightening torque of the
wheel bolts is too low, they can loosen and
come out when the vehicle is moving. If the
tightening torque is too high, the wheel bolts and threads can be damaged and the
wheel can become loose.
CD Note
The specified torque for the wheel bolts is 90
ft lb (120 Nm) with a tolerance of± 7 .4 ft lb
(± 10 Nm) . Torque wheel bolts diagonally. Af­
ter changing a wheel, the torque must be
checked as soon as possible with a torque
wrench -preferably by an authorized Audi
dealer or qualified workshop.
Low aspect ratio tires
Your Audi is factory-equipped with low aspect ra­
tio tires. These tires have been thoroughly tested
and been selected specifically for your model for
their superb performance, road feel and handling under a variety of driving conditions . Ask your au­
thorized Audi dealer for more details.
The low aspect ratio of these tires is indicated by
a numeral of
55 or less in the tire's size designa­
tion. The numeral represents the ratio of the
tire's sidewall height in relation to its tread width
expressed in percentage. Conventional tires have
a height/width ratio of 60 or more.
The performance of low-aspect-ratio tires is par­
ticularly sensitive to improper inflation pres­
sure. It is therefore important that low aspect
ratio tires are inflated to the specified pressure
and that the inflation pressure is regularly
checked and maintained. Tire pressures should be checked at least once a month and always
before a long trip
c> page 179, Checking tire
pressure.
195

What do I do now? Trunk escape handle
Appl ies to vehicles: with trunk escape handle
In case of an emergency, the front lid can be
opened from the inside using the trunk escape
handle.
.. To open the front lid pull the handle.
The trunk escape handle inside t he luggage com ­
partment is made of fluorescent material to glow
in the dark .
.&_ WARNING
The trunk escape handle is to be used only in
an emergency.
Vehicle tool kit
The tools are stored underneath the floor panel
in the luggage compartment.
Fig. 151 Luggage compartment: veh icle tool kit
"' Swing the luggage compar tment floo r up-
wards .
.. Remove the vehicle tool kit.
The onboard tool kit incl udes:
- Hook for removing hub cap
- Lug wrench
- Alignment pin for changing wheels
- Screwdr iver w ith reversible blade
- Towing eye
- Jack* (not a vehicle component; contact your
,..... authorized Aud i dealer i f needed)
N
I'-
~ Some of the on board items listed above are pro-
.... :5: vided on certa in models only or are optiona l ex-
N l/1 .... tras.
What do I do no w?
Before returning the jack* to its p lace, retract the
jack arm fully.
.&_ WARNING
-
Improper use of the vehicle jack can cause se-
rious personal injuries.
- Never use the screw driver hex head to
tighten wheel bo lts, since the bolts cannot
attain the necessary tightening torque if yo u
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 should it be used to
lift heavy
veh icles or other loads; you risk injuring
yourse lf.
- Never start the engine when the vehicle is
raised, which could cause an accident.
- Support the vehicle securely with appropri­
ate stands if work is to be pe rformed under­
neath the vehicle; otherwise, the re is a po­
tential risk fo r injury.
- Never use the jack supplied with your Aud i
on another vehicle, part icularly on a heavier
one. The jack is only suitable for use on the
vehicle it came with.
Tire repair
General and safety pointers
Applies to vehicles: with Tire Mobility System
Tire repair is intended only for temporary, short­
term use.
Fig. 152 Tire damage for which the Tire Mobility System Is
not suited
Your vehicle is equipped with a tire repa ir kit, the
T ire Mob il it y Sy stem ( TMS). .,.
19 9

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~ Then comp lete ly unscrew th e othe r whee l bolts
as descr ibed above.
~ Takeoff the wheel le aving the alignment pin in
t he bolt hole
Q (D.
Putting on th e w hee l
~ Lift the spare wheel and carefully slide it over
the alignment pin to guide it in place
q (D.
~ Use the hexagonal socket in the screwdriv er
hand le to screw in and tighten all wheel bo lts
s ligh tly.
~ Unscrew the alignmen t pin and insert and
t ighten the remaining wheel bolt s light ly like
the rest .
~ Turn the jack handle counter-clockw ise to lowe r
the vehi cle until the jack is fu lly released.
The wheel bolts must be clean and turn easily. Check the contact surfaces of wheel and hub . Re­
move contaminants on these surfaces before in­
stall ing the wheel.
The hexagonal socket in the screwdriver handle makes it eas ier to hand le the wheel bolts . The re­
ve rsible blade shou ld be removed .
When mounting
un idirectional tires, observe the
d irection of rotation
q page 203 .
When removing or install ing the wheel, the
r im could hit the brake rotor/ceramic brake
roto r* and damage the rotor. Wo rk ca refully
an have a second pe rson help you .
{D) Tips
Never use the hexagonal socket in the handle
of t he screwdr iver to loose n or tighten the
wheel bo lts.
Tightening wheel bolts
~ Fi t the wheel bolt wrench ove r th e wheel bo lt
and push it down as fa r as it will go
l).
~ Close your grip aro und the end of the wrench
hand le for max im um torq ue and turn eac h
whee l bolt
cloc kwi se u ntil it s its t ight .
l) You need t he appro pria te adapte r to t ight en th e an ti- th eft
wheel bo lts
<=:> p age 20 3.
What do I d o now?
Have the tightening torque of the wheel bolts
checked as soon as possib le with a torqu e
w renc h. It should be 120 Nm .
Check the
tire pre ssure as soon as possible.
Return the veh icle tool k it to its p roper place .
A WARNING
Loosening the whee l bolts is p roh ibited; dan­
ger of an accident!
(D Tips
- Never try and use the hexagonal socket in
the handle of the screwdrive r to loosen o r
tighten t he whee l bolts.
- If you hav e determined that wheel bolts are
co rroded and difficult to turn, the bolts
must be replaced before checki ng t he tor­
que.
- Unt il the t ightening to rque is checked, d rive
a t redu ced s peed s as a precaution.
Notes on wheel change
Please read t he info rmation q page 186, New
tires and replacing tires and wheels,
if yo u are
going to us e a spare tire w hich is different from
the ti res on your vehicle.
After you change a tire:
- Che ck the tire pre ssure on the spar e imm ed i­
ate ly after mounting .
- Have the wheel bolt tightening torque
c he cked with a torque wrench as soon as po s­
s ible by your authorized Audi d ealer or a
qualified service station .
- With steel and all oy wheel rim s, th e wheel
bolts ar e corre ctl y tightened at a torque of 90
ft lb
( 120 Nm ).
- If you noti ce while changing a tire that the
wheel bolts are corroded and diffi cult to turn ,
then the y should be replaced before you check
the tightening to rque .
IJ>-
205

Index
Warning/Indicator lights Rear spoiler . . . . . . . . . . . . . . . . . . . . . . . . . 18
Warn ing lights . . . . . . . . . . . . . . . . . . . . . . . . 11
Warranty coverages . . . . . . . . . . . . . . . . . . . 215
Wear indicator . . . . . . . . . . . . . . . . . . . . . . . 185
Weights. .. .. .... .......... ...... ... . 212
What happens if you wear your safety belt too
loose? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
What happens to unbelted occupants? . . . . . 96
What impairs dr iving safety? . . . . . . . . . . . . . 87
What should I do after changing a wheel? . 181
Wheel bolts
Torque. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Checking tire pressure . . . . . . . . . . . . . . . . 179
Clean ing . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Cold tire inflation pressure . . . . . . . . . . . . 176
General notes . . . . . . . . . . . . . . . . . . . . . . . 169
Glossary of tire and loading terminology . 171
New tires and wheels . . . . . . . . . . . . . . . . . 186
Tires and vehicle load limits . . . . . . . . . . . 182
When must the airbag system be inspected? 1.12
When should I adjust the tire pressures? . . 181
When shou ld I check the tire pressures? . . . 181
Where can I find the tire pressures for my
car? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Why safety belts? . . . . . . . . . . . . . . . . . . . 95, 96
Wind deflector . . . . . . . . . . . . . . . . . . . . . . . . 40
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Windows Clean ing/remov ing ice . . . . . . . . . . . . . . . . 147
Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
W indshield washer fluid . . . . . . . . . . . . . . . . 17
Windshield wipers . . . . . . . . . . . . . . . . . . . . 168
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Insta lling new wiper blades . . . . . . . . . . . . 53
Service position . . . . . . . . . . . . . . . . . . . . . . 53
Winter operation Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Car washes . . . . . . . . . . . . . . . . . . . . . . . . . 145
Coolant system . . . . . . . . . . . . . . . . . . . . . 161
Defrosting windows . . . . . . . . . . . . . . . . . . . 63
Heated seats . . . . . . . . . . . . . . . . . . . . . . . . 64
Removing ice from windows . . . . . . . . . . . 147
Windshield wipers . . . . . . . . . . . . . . . . . . . 168
Winter tires . . . . . . . . . . . . . . . . . . . . . . . . . . 193
All-wheel drive . . . . . . . . . . . . . . . . . . . . . . 193
228
Wiper and washer system . . . . . . . . . . . . . . . 51
Intermittent wiping . . . . . . . . . . . . . . . . . . . 51
One -tap wiping ... .. .................. 51
Wiper b lades
refer to Windshield wipers . . . . . . . . . . . . . 53