2015 AUDI R8 SPYDER suspension

Airb ag syst em
observed. Your authorized Audi dealer is fa­
miliar with these requirements and we recom­
mend 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 System
pe rforms in a crash. For example, us ing t ire-rim
comb inat ions not approved by Audi, lowering the
vehicle, changing the stiffness of the suspension, including the springs, suspension 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 example, increase the force levels meas­
ured by the sensors and make the airbag system
deploy in crashes in which it wou ld not deploy if
the changes had not been made. Other kinds of
changes may reduce the force levels measured by
the sensors and prevent the airbag from deploy ­
ing when it should.
A WARNING
Changing the vehicle's s uspension including
use of unapproved t ire-rim comb inat ions can
change Advanced A irbag performance and in­
crease the risk of ser ious persona l injury in a
crash .
- Never install suspension components that
do not have the same performance charac­
te ristics as the components or iginally insta l­
led on your veh icle.
- Never use tire-rim combinations that have not been approved by A udi.
A WARNING
Items stored between the safety belt buckle
and the center console can cause the senso rs
in the b uck le to send the wrong information
t o the electron ic contro l modu le and prevent
t he Advanced Airbag System from working
properly.
- Always make sure that nothing can interfere
with the safety be lt b uckles and that they
are not obstructed.
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Knee airbags
Description of knee airbags
The knee airbag system can provide supplemen­
tal protection to properly restrained front seat
occupants .
Fig. 119 D river 's airbag
The driver knee airbag is in the instrument panel
u nderneath the steer ing whee l
~fig. 119, the
airbag for the passenger is at about the same height in the instrument panel underneath the
glove compartment.
The knee airbag offers additional protection to
the driver's and passenger's knees lower thigh
areas as a supplement to the protection by the
safety belts.
If the front a irbags dep loy, the knee a irbags also
deploy in fronta l co llisions when the dep loyment
threshold stored in the control unit is met
~ page 110 , More important things to know
about front airbags .
In addition to their normal safety function, safe­
ty belts help keeping the driver or front passen­ ger in posit ion in a frontal collision so that the
airbags can provide supplemental protection .
The airbag system is not a substitute for your
safety belt . Rather, it is part of the overall occu­
pant restra int system in your vehicle. A lways re­
member that the airbag system can only help to
protect you if you are wearing your safety belt
and wea ring it p roperly. This is why you sho uld a l­
ways wear your safety be lt, not just because the
l aw requires yo u to do so¢
page 95, General
notes .
llll-

Driving and en vironment
Driving and environment
Break-in period
A new vehicle must be broken in, and the break-in
period shou ld be 1 ,500 miles (2,500 km) . Do not
use full acceleration for the first 600 miles
(1 ,000 km) and do not exceed the maximum en­
gine speed of 6,000 rpm You must also not use
full accelerat ion between 600 and 1,200 miles
(1,000 to 2,000 km) . From 1,200 to 1,500 miles
(2 ,000 to 2,500 km), you can gradually increase
maximum eng ine speed to 8,250 rpm for brief
pe riods.
During the first hours of operation, there is
greater fr iction in the eng ine and the transmis­
sion than later when all the moving pa rts have
b roken in .
The way you drive during the first 1,500 miles
(2 ,500 km) affects engine quality . If you drive at
modera te engine speeds thereafter, part icu larly
when the engine is cold, yo u red uce eng ine wea r
and increase the potential mileage o f the engine.
Do not dr ive at RPMs that a re too
low. Shift down
when the engine is no longe r runni ng "smooth­
ly". Extremely high RPMs are gover ned automati­
cally.
Avoid damaging the
vehicle
W hen you are driving on poor roads, or over
curbs, steep ramps, etc ., make certain that low­
lying parts such as spoilers and exhaust system
parts do not bottom out and get damaged .
This is especially true for vehicles with low-slung
chassis (sports chassis) and fully loaded vehicles.
Driving through water on
roads
Note the following to avoid vehicle damage when
d riving through water, for examp le on flooded
roads:
- The water must no t be any h igher than the bot­
tom of the vehicle body.
142
- Do not drive faster than walk ing speed .
A WARNING
After driv ing through water, mud, s lush, etc .,
the brakes may be s low to take effect because
of wet brake rotors and pads. Dry the brakes
first by brak ing carefully to restore the full
braking effect.
(D Note
Vehicle components such as the eng ine,
transmission , suspension or e lectrical system
can be severe ly damaged by dr iv ing t hrough
water .
(D Tips
- Check the dept h of the water before driving
through it.
- Do not stop the vehicle, drive in reverse or switch the engine off when driv ing through
water.
- Keep in mind that oncoming veh icles may
create waves that raise the water level and
make it too deep for your vehicle to d rive
through safely .
- Avoid driving through salt water because it
can cause corrosion.
Catalytic converter
It is very important that your emission control
system (catalytic converter) is functioning prop­
erly to ensure that your vehicle is running in an
environmen tally sound manner.
.,. Always use lead-free gasoline ~ page 151,
Fuel supply.
.,. Never r un the tank down all the way to empty.
.,. Never put too much mo tor o il in yo ur engi ne
~ page 160, Adding engine oil 'l::r..
.,. Never try to push- or tow-sta rt your vehicle .
The cata lytic converter is an effi cien t "clean -up"
device built in to the exhaust system of the vehi ­
cle. The cata lytic conve rter burns many of the
po llutants in the exhaust gas before they are re­
l eased into the atmosphere.
-

.... N ,..: N "': ....
"' "' N
"' .....
Tire service life
The service life of tires depends
on a lot of different things includ­
ing proper installation and bal ­
ancing, correct tire pressure and
driving style.
Fig. 149 Tire tread: tread wear indica ­
tors (TWI)
Tread Wear Indicator (TWI)
The original tires on your vehicle
have 1/16 inch (1 .6 mm) high
"wear indicators"c::>
fig. 149 run­
ning across the tread. Depending
on the make, there will be s ix to
eight of them evenly placed
around the tire. Marks on the tire
sidewall (for example "TWI" or
other symbols) indicate the posi­
tions of the tread wear indicators.
Worn tires must be replaced. Dif­
ferent figures may apply in other
countries c::>
.&..
Tire pressure
Incorrect tire pressure causes pre­
mature wear and can cause sud-
Tires and wheels
den tire blow-out. For this reason,
tire pressure must be checked at least once a month c::>
page 179.
Driving style
Driving fast around curves, heavy
acceleration and hard braking in­
crease tire wear.
Wheel balancing
The wheels on new vehicles are
balanced. However, various situa­
tions during everyday driving can
cause them to become unbal­
anced, resulting in vibrations you
can usually feel through the
steering wheel.
Unbalanced wheels must be reba­
lanced to avoid excessive wear on
steering, suspension and tires . A
wheel must also be rebalanced
when a new tire is installed .
Incorrect wheel alignment
Incorrect wheel alignment can
cause excessive tire wear, impair­
ing the safety of the vehicle. If
tires show excessive wear, have
the whee l alignment checked by
an authorized Audi dealer or
qualified workshop.
185