2013 AUDI S7 air condition

154 Airbag system
~ fig. 161. The general location of the airbags
is marked "AIRBAG".
There is a lot you need to know about the air­ bags in your vehicle. We urge you to read the
detailed information about airbags, safety
belts and child safety in this and the other
chapters that make up the owner's literature.
Please be sure to heed the WARNINGS -they
are extremely important for your safety and
the safety of your passengers, especially in ­
fants and small children.
A WARNING
Never rely on airbags alone for protection.
- Even when they deploy, airbags provide
only supplemental protection .
- Airbag work most effectively when used
with properly worn safety belts.
- Therefore, always wear your safety belts
and make sure that everybody in your ve­
hicle is properly restrained .
- Always hold the steering wheel with both
hands on the outside of the steering
wheel rim at the 9:00 o'clock and 3 :00
o'clock positions to help reduce the risk
of personal injury if the driver's airbag in­
flates.
- Never hold the steering wheel at the 12
o'clock position or with your hands any­
where inside the steering wheel or on the
steering wheel hub. Holding the steering
wheel the wrong way increases the risk
of severe injury to the arms, hands, and
head if the driver airbag deploys.
A WARNING
Objects between you and the airbag will
increase the risk of injury in a crash by in­
terfering with the way the airbag unfolds
and/or by being pushed into you as the air­
bag inflates.
-Always make sure nothing is in the front
airbag deployment zone that could be
struck by the airbag when it inflates.
- Objects in the zone of a deploying airbag
can become projectiles when the airbag deploys and cause serious personal
in­
jury.
- Never hold things in your hands or on
your lap when the vehicle is in use.
- Never place accessories or other objects
(such as cup holders, telephone brackets,
note pads, navigation systems, or things
that are large, heavy, or bulky) on the
doors; never attach then to the doors or
the windshield; never place them over or near or attach them to the area marked
,,A IRBAG" on the steering wheel, instru­
ment panel or the seat backrests; never
place them between these areas and you
or any other person in the vehicle.
- Never attach objects to the windshield
above the passenger front airbag, such
as accessory GPS navigation units or mu­
sic players. Such objects could cause seri­
ous injury in a collision, especially when
the airbags inflate.
- Never recline the front passenger seat to
transport objects. Items can also move
into the deployment area of the side air­
bags or the front airbag during breaking
or in a sudden maneuver. Objects near
the airbags can fly dangerously through
the passenger compartment and cause
injury, particularly when the seat is re­
clined and the airbags inflate.
A person on the front passenger seat, es­
pecially infants and small children, will re­
ceive serious injuries and can even be kil­
led by being too close to the airbag when
it inflates.
- Although the Advanced Airbag System in
your vehicle is designed to turn off the
front passenger airbag if an infant or a
small child is on the front passenger
seat, nobody can absolutely guarantee
that deployment under these special
conditions is impossible in all conceiva­
ble situations that may happen during
the useful life of your vehicle.
~

-The Advanced Airbag System can deploy
in accordance with the .,low risk" opt ion
for 3- and 6-year-old children under the U.S. Federal Standard if a child w ith elec­
trical capac itance greater than the com­
bined capacitance of a typical one-year
old infan t restra ined in one of the for­
ward fac ing or rearward-fac ing ch ild
seats with which you r vehicle was cer ti­
fied is on the front passenger seat and
the other conditions for airbag deploy­ ment are met.
- Accident statistics have shown that chil­
dren are generally safer in the rear seat
area than in the front seating position.
- For their own safety, all children, espe­
cially 12 years and younger, sho uld al­
ways ride in the back properly restrained
for their age and size.
Advanced front airbag system
Your veh icle is equipped w ith a front Advanced
A irbag System in compliance with Un ited
States Federal Motor Vehicle Safety Standard
208 as applicab le at the time your vehicle was
manufactured.
The front Advanced Airbag System supple­ ments the safety belts to provide add it ional
p rotection fo r the driver's and front passeng­
e r' s heads and upper bodies in frontal crashes.
The airbags inflate only in frontal impacts
when the vehicle dece leration is high enough .
The front Advanced Airbag System for the
front sea t occ upants is no t a substit ute for
your safety bel ts. Rather, it is par t of the over­
all occupant restraint system in your veh icle.
A lways remember that the airbag system can
only help to protect yo u, if you are s itting up­
right, wearing yo ur safety belt and wearing it
properly . This is why you and your passengers
must always be properly restrained, not just
because the law requires you to be .
The Advanced Airbag System in your veh icle
has been certified to meet the "low r isk" re­
qu irements for 3 and 6 year-o ld children on
the passenge r side and very small adults on
A irbag system 15 5
the driver side . The low risk deployment crite­
ria are intended to help reduce the risk of in­
j u ry through interaction with the front airbag
that can occur, for example, by being too close to the steering wheel and instrument
panel when the airbag inflates.
In add ition, the system has been certified to
comply with the "s uppression" requirements
of the Safety Standard, to turn off the front
airbag for infants 12 months old and younger
who are restrained on the fro nt passenger
seat in child restraints that are l isted in the
Standard
¢ page 177, Child restraints and
Advanced front airbag system.
"Suppress ion " requires the front a irbag on the
passenger side to be turned off if:
- a child up to about one year of age is re­
strained on the front passenger seat i n one
of the rear-fac ing or forward-facing infant
restraints listed in Federal Motor Vehicle
Safety Standard 208 with wh ich the Ad­
vanced Airbag System in your ve hicl e was
certified. For a listing of the chi ld restraints
tha t were used to certify your vehicle's com ­
pliance with the US Safety Standard
¢ page 177,
-When a person is detected on the front pas ­
senger seat that has an electrical capaci­
tance that is more than the tota l electrical
capacitance of a child that is about 1 year
old restrained in one of the rear-facing o r
forward -facing infant restraints (listed in
Federal Motor Vehicle Safety Standard 208
w ith which the Advanced A irbag System in
your veh icle was certified), the front airbag
on the passenger side may or may no t de­
p loy.
T he
PASSENGER AIR BAG OFF light comes on
whe n the elect ro ni c cont ro l unit de tects a to­
ta l elec trical c apac itance on the front passen­
ger seat that requi res the front airbag to be
turned off . If the
PASSENGER AIR BAG OFF
light does not come on, the front airbag on
the passenger side has not been turned off by
the control unit and can deploy if the control unit senses an impact that meets the condi -
tions stored in its memory .
IJJ,,
•
•

-Never place or attach accessories or o th ­
er objects (such as cup hol ders, tele­
phone brackets, large, heavy or bulky ob­
jects) on the doors, over or near the area
marked ''AIRBAG" on the steering wheel,
instrument panel, seat backrests or be­
tween those a reas and yourself. These
objects co uld cause injury in a crash, es­
pecially when the airbags inflate .
- Never recline the front passenger's seat
to transport objec ts. Items can also
move into the area o f the side airbag or
the front airbag during braking or in a
sudden maneuver . Objects near the air­
bags can become project iles and cause
injury, part icularly when the seat is re­
cl ined .
- Never place or transport ob jects on the
front passenger seat. Objects on the
front passenger seat could cause the ca­ pacitive senso r in the seat to s ignal to
airbag system that the seat is occupied
by a person when it in fa ct is not, o r that
the person on the se at is he avier than he
or she actually is. The change in electric
capacitance beca use of such objects can
cause the passenger front airbag to be
turned on when it sho uld be
off, or can
cause the airbag to work in a way that is
different from the way it wou ld have
worked w ithout objects on the seat.
- Always make sure that there is nothing
on the front passenger seat that will
cause the capacitive passenge r detection
system in the s eat to s ignal to the A irbag
System that the seat is oc cupied by a
pers on when it is not, or to sign al that it
is occupied by someone who is heavier
than the pe rson actually s itting on the
seat . The presence of an object co uld
cause the passenger front a irbag to be
turned on when it sho uld be
off, or co uld
cause the airbag to work in a way that is
different from the way it wou ld have
worked w ithout the object on the seat. A
irbag
sys tem 161
A WARNING
The fine dust created when airbags deploy
can cause breathing prob lems fo r people
with a history of as thma or other breath­
ing cond itions.
- To reduce the risk of breath ing problems,
those wi th asthma o r other respiratory
conditions s hou ld get fresh air r ight
away by get ting o ut o f the veh icle or
open ing win dows or do ors.
- If you are in a collision in which airbags
deploy, was h your ha nds and fa ce with
mild soap and wate r be fore eating.
- Be ca reful not to get the dust in to your
eyes, o r into any c uts or sc ratches.
- If the resid ue should get into your eyes,
f lus h t hem w ith wa te r.
Monitoring the
Advanced Airbag System
fl~ Airbag monitoring indicator light
Two separate indicators monitor the function
of the Advan ced Airbag System: the airbag
monitoring indi cator light and the
PASSEN­
GER AIR BAG O FF
light.
The Advanced A irbag System ( includ ing the
electron ic co ntro l unit, sensor circu its and sys­
tem wir ing) is monitored con tinuously to
make sure that it is functio ning properly
whenever the ignition is on. Each time you
switch on the ignition, the airbag monitor ing
indicator light
fl will come on for a few sec­
onds (self diagnost ics).
The sy stem must be in spected when the
indicator light
I :
- does not come on when the ignition is
sw itched on,
- does not go out a few seconds after you
have switched on the ignit ion, or
- comes on while driv ing.
If an airbag system malfunc tion is detec ted,
the indicator light wi ll first start f lashing to
catch the driver's attention and then stay on
llo-
•
•

-The PA SS ENGER AIR BAG OFF light must
come on and stay on if the ignition is on
and . ..
- a car bed has been insta lled on the front
passenger seat, or
- a rearward -facing chi ld restraint has been
installed on the front passenger seat, or
- a fo rward-facing child restraint has been in­
stalled on the front passenger seat,
- and if the e lectr ica l capaci tance registered
on the front passenger seat is equal to or
l ess than the combined capacitance of a typ­
ical 1 year-old infant and one of the rear­
ward-facing or forward -facing child re­
stra ints listed in Federal Motor Veh icle Safe­
ty Standard 208 w ith which the Advanced
Airbag System in your vehicle was certified.
If the front passenger seat is not occupied,
the front airbag will not deploy, and the
P A S·
SE NG ER AIR BA G OFF
light w ill stay on . Nev­
er install a rearward-fac ing ch ild restra int on
the front passenger seat, the safest place fo r
a child in any ki nd of child restraint is at o ne
of the seati ng positions on the rear seat
¢ page 151, Child restraints on the front seat
- some important things to know
and
¢ page 175, Child Safety.
If the PASSENGER AIR BAG light com es
on ...
If the PA SSENGER AIR BAG OFF light comes
on w hen one of the conditions listed above is
met, be sure to check the light regular ly to
make certa in that the
PA SSENGER AIR BA G
OFF
light stays on cont inuous ly whenever the
ignit ion is on.
If the PA SSE NGER A IR BA G
OFF
l ight does not appear on and does not
stay on all the time, stop as soon as it is safe
to do so and
- react ivate the system by turning the ignition
off for more than 4 seconds and then turn­
i ng it on agai n;
- remove and reinstall the child restraint .
Make sure that the child restraint is properly
installed a nd that the safety be lt fo r the
front passenger seat has been correct ly
ro uted through the child rest raint as descr i-
A irbag system 163
bed in the child restraint manufacturer's in­
structions;
- make sure that the convertible locking fea ­
t u re on the safety belt for the front passen­
ger seat has been activated and that the
safety belt has been pulled tight.
- make sure t hat no electrical device (s uch as
a laptop, CD p layer, e lectronic games device
or power inverter) is p laced or used on the
front passenger seat if the device is connect­
ed to the 12-volt socket or the cigarette
lighter socket;
- make sure that no seat heater has been ret­
rofitted or otherwise added to the front pas ­
senger seat;
- make sure that nothing can interfere with
the safety belt buckles and that they are not
obstructed;
- make sure that there are no wet objects
(such as a wet towel) and no water or other
liquids on the front passenger seat cushion .
If the PASSENGER AIR BAG light still
does not come on ...
If the PASSENGER AIR BAG OFF light still
does not come on and does not stay on con­
ti nuously (whe n the ignition is sw itched on),
- take the child restraint off the front passen-
ger seat and install it properly at one of the
rear seat positions . Have the airbag system
inspected by yo ur Audi dealer immed iate ly.
- move the ch ild to a rear seat position and
ma ke sure that the c hild is properly restra in­
ed in a c hild restra int that is app rop riate fo r
its size an d age.
The PASSENGER AIR BAG light should
NOT come on .. .
The PAS SENGER AIR BAG OFF lig ht sho uld
NOT come on when t he ignit io n i s on and an
adult is sitting in a proper seating position on
the front passenger seat . If the
PASSENGER
AIR BAG O FF
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 •
•

Child Safety
Important things to know
Introduction
The rear seat is generally the safest place in a
collision.
The physical principles of what happens when
your veh icle is in a crash app ly also to chi ldren
~ page 141, What happens to occupants not
wearing safety belts?.
But unlike adu lts and
teenagers, their muscles and bones are not
fu lly developed . In many respects children are
at greater risk of serious injury in crashes than
ad ults.
Because children's bod ies a re not fu lly deve l­
oped, they require restraint systems especial­ l y designed for their size, weight, and body
structure. Many co untries and all states of the
United States and provinces of Canada have
laws requ iring the use of approved ch ild re­
straint systems for infants and small children.
In a fronta l crash at a speed of 20 -35 mph
(30-56 km/h) the forces acting on a 13-pound
(6 kg) infa nt w ill be more than 20 t imes the
weight of the child . T his means the weight of
the child would suddenly be more than
260 pounds ( 120 kg). Under these conditions,
on ly an appropr ia t e chi ld restraint properly
used can reduce the risk of ser ious injury.
Ch ild restra ints, like adult safety belts, must
be used properly to be effective. Used improp ­
erly, they can increase the risk of ser ious in ­
jury in an accident.
Consult the ch ild safety seat manufacture r's
instr uctions in order to be sure the seat is
right fo r you r ch ild's size ~
page 179, Impor­
tant safety instructions for using child safety
seats.
Please be sure to read and heed all of
the impo rtant informat ion and WARNINGS
about ch ild safety, Advanced A irbags, and the
i nstallation of child rest raints in this chapter .
There is a lot you need to know about the Ad­
vanced A irbags in your vehicle and how they
wo rk when infants and children in child re-
Child Sa fet y 175
stra ints are on the front passenge r seat . Be­
ca use of the large amount of important infor­
mation, we cannot repeat it a ll here . We urge
you to read the detailed information in th is
owner's manua l about airbags and the Ad­
vanced Airbag System in your vehicle and the
very important information about transport­
ing children on the front passenge r seat .
Please be sure to heed the WARN INGS -they
are ex tremely importa nt for yo ur safety and
the safety o f you r passengers, especially in ­
f ants and small chi ldren .
.A, WARNING
-Accident statistics have shown that c hil­
dren a re generally safer in the rear seat
area than in the front seating position.
Always restrain any child age 12 and un­ der in the rea r.
- All vehicle occupants and especially chil­
dren must be restrai ned p roperly when­
eve r riding in a vehicle . An unr est rained
or improperly restrained chi ld could be
in ju red by str iking the interio r or by be­
ing ejected from the vehicle during a
sudden maneuve r or impac t. An un re ­
strained or improper ly restrai ned ch ild is
also at greater risk of injury o r death
through contact with an inflating airbag.
- A suitable chi ld restraint properly instal ­
led and used at one of the rear seat ing
positions p rov ides the highest degree of
protection for infants and small children
in most accident situations.
A WARNING
Ch ildren on the front seat of any car even
with Advanced Airbags ca n be ser iously in­
ju red or even kil led when an a irbag in­
fla tes. A child in a rearwar d-fac ing ch ild
safety seat installed on t he front passen ­
ger seat will be ser iously injure d and ca n
be killed i f the front airbag inflates .
- T he infla ting air bag will h it the ch ild
safety sea t or i nfan t carrie r wi th great
force and will smash the child safe ty seat
an d child against the bac krest , center
armrest, or door .
•
•

196 Intelligent technology
Intelligent technology
Notice about data
recorded by vehicle
control modules
Your vehicle is not equipped with an Event Da­
ta Recorder (EDR), installed by some manu­
facturers fo r the express purpose of capturing
data for retrieval after an accident or crash
event . EDR's are sometimes ca lled "crash re­
corders".
Some state laws restrict the retr ieval or down­
loading of data stored by EDR's that were in­
stalled in a vehicle for the express purpose of
retrieving data after an accident or crash
event without the owner's consent.
A lthough your vehicle is not equipped with an
EDR, it is equipped with a number of electron­
ic control modules for various vehicle systems
such as, for examp le, eng ine function, em is­
sion control, as well as for the airbags and
safety belts.
These electronic contro l modules also record
vehicle-re lated data during normal vehicle op­
eration for diagnostic and repair purposes.
The recording capacity of the electronic con­
trol modules is limited to data (no sound is re­
corded) and only a small amount of data is ac­
tually recorded over a very limited pe riod of
time and stored when a system fault or other
condition is sensed by a control unit. Some of
the data then stored may relate to vehicle
speed, direction, braking as we ll as restraint
system use and performance in the event of a
crash or other condition. Stored data can only
be read and downloaded with special equip­
ment.
Electronic Stabilization
Control (ESC)
Description
ESC helps to improve road holding and vehicle
dynamics to help reduce the probability of
skidd ing and loss of vehicle control. It works
only when the engine is running. ESC detects certain difficult driving situat
ions, including
when the vehicle is beginning to spin (yaw)
out of control and helps you to get the veh icle
back under control by se lectively braking the
wheels, and/or reducing engine power and
providing steering assistance to help hold the
vehicle on the driver's intended course. The in­
dicator light
G) in the instrument cluster
blinks when ESC is taking action to help you
control the vehicle.
ESC has limitations.
It is important to remem­
ber that ESC cannot overcome the laws of
physics. It wi ll not always be able to help out
under all conditions you may come up against.
For example, ESC may not always be able to
help you master situations where there is a
sudden change in the coefficient of friction of
the road surface. When there is a section of
dry road that is suddenly covered with water,
slush or snow, ESC cannot perform the same
way it wou ld on the dry surface . If the vehicle
hydroplanes (rides on a cushion of water in­
stead of the road surface), ESC will not be
able to help you steer the vehicle because con­
tact with the pavement has been interrupted
and the vehicle cannot be braked or steered.
During fast cornering, particularly on winding
roads, ESC cannot always deal as effectively
with difficult driving situations than at lower
speeds. When towing a trailer, ESC is not able
to help you regain control as it would if you
were not tow ing a trailer.
Always adjust your speed and driving style to road, traffic; and weather condit ions. ESC can­
not override the vehicle's physical limits, in­
crease the available traction, or keep a vehicle
on the road if road departure is a result of
drive r inattention. Instead, ESC improves the
poss ibility of keeping the vehicle under con­
trol and on the road during ex treme maneu­
vers by using the driver's steering inputs to
help keep the vehicle going in the intended di­
rection . If you are traveling at a speed that
causes you to run off the road before ESC can
provide any assistance, you may not experi­
ence the benefits of ESC.

Manual mod e
-Manua l dep loyment: Tapping b riefly on the
switch
¢ fig. 182 dep loys the rear spoiler.
- Manua l retraction: A t speeds up to abo ut
10 mph (20 km/h) , ret ract the rear spoiler
by pressing and holding the switch
¢ fig. 182 . At speeds between 10 mph (20
km/h) and 80 mph (130 km/h), retract the
rear spoiler by tapping on the switch
¢ fig . 182.
In dicat or light s
rJ /. R ea r spoiler: system m alfun ct io n!
The rear spoiler may not have extended due to
a ma lf u nction. This could change the vehicle 's
driving characteristics at high speeds . Do not
exceed 85 mph (140 km/h). Drive to your au­
thorized Audi dealer immed iate ly to have the
malfunction corrected. The co lor of the indica­
tor light depends on the vehicle speed.
A WARNING
Dr iv ing at higher speeds w ithout the rear
spoiler dep loyed can impair handling char ­
acteristics, making the veh icle harde r to
cont ro l.
- Always make sure that the spoiler is de­
ployed when driving at speeds over
85 mph (140 km/h). If the rear spoiler
warning/ind icator light in the i nstr u­
ment cluster comes on, the rear spoiler
may not have dep loyed .
- Never drive at speeds higher than
85 mph (140 km/h) if the spoiler is not
deployed. Have the spoiler inspected as
soon as possible by an authorized A udi
dealer or qualif ied workshop.
- Always obey speed limits and other traf­
fic laws.
A WARNING
Improper operation of the rear spoiler can
cause crushing injuries.
- Always make sure that nobody, especially
children, is in the way when the rear
spoiler is deployed or retracted.
Int ellig ent technolog y 199
@ Note
-Never push the vehicle or apply force to
the rear spoiler -it could be damaged.
- Only operate the rear spoiler manua lly
when the rear lid is closed . Otherwise,
damage cou ld occur.
(D Tips
C lean the spoiler compa rtment every 2 to
3 months. The spoiler compartment must
a lways be free of ice, snow, leaves or other
debris .
Braking
General information
What affects braking efficiency?
Operating condition s and dri ving h abit s
The brakes on today's automobiles are still
subject to wear, depending largely on operat­
ing condit ions and driving habits ¢.&, . On
vehicles that are either driven mostly in stop­
and-go c ity traff ic or are dr iven hard, the
brake pads should be checked by your author­
ized Audi dea ler more often th an specified in
the
Warran ty & Maintenan ce boo kle t. Failure
to have you r brake pads inspected can result
in reduced brake performance .
On steep slopes, you sho uld use the braking
effect o f the engine . This way, you prevent un ­
necessary wear on the b rake system. If you
must use your brakes, do not hold the brakes
down cont inuous ly. Pump the brakes at inter­
vals.
Mo istur e or road salt
U nder certain conditions , for example, when
driving through water or very heavy rain , or
even after washing your vehicle, the braking
effect can be reduced due to moisture (or in
free zing cond itions ice) on the brake pads. A
few carefu l brake applications should dry off
the brake pads or remove any ice coatings .
When you are driving at higher speeds with
the windshield w ipers on, the brake pads will
Ill-
•
•

Catalytic converter
It is very important that your emission con­trol system (catalytic converter) is function­
ing properly to ensure that your vehicle is run­
ning in an environmentally sound manner .
.. Always use lead-free gasoline¢ page 225,
Fuel supply.
.,. Never run the tank down all the way to
empty.
.,. Never put too much motor oil in your en-
gine
¢ page 235, Adding engine oil~-
.,. Never try to push- or tow-start your veh icle.
The catalytic converter is an eff icient "clean­
up" device built into the exhaust system of
the vehicle . The catalytic converter burns
many of the pollutants in the exhaust gas be ­
fore they are released into the atmosphere.
The exclusive use of unleaded fuel is critically
importa nt for the life of the cata lytic convert­
e r and proper functioning of the engine.
A WARNING
-
- Do not park or operate the vehicle in
areas where the hot exhaust system may
come in contact with dry grass, brush,
fuel spill or other material which can cause a fire.
- Do not apply additional undercoating or
rustproofing on or near the exhaust
man ifold, exhaust pipes, catalytic con­
verter or heat shields. During driving, the
substance used for undercoating cou ld
overheat and cause a fire.
0 Note
- Be aware that just one tank filling with
leaded fuel will already seriously de­
grade the performance of the catalytic
converter.
- Do not exceed the correct engine oil level
¢ page 235.
-Do not drive until the fuel tank becomes
completely empty. The eng ine could mis­
fire . U nburned fuel could a lso get i nto
Dri vin g and en vironm ent 205
the exhaust system and this cou ld cause
the catalytic converter to overheat .
- Do not switch off the ignit ion while the
vehicle is mov ing.
- Do not continue to ope rate your veh icle
unde r these conditions, as othe rwise fuel
can reach the catalytic converter. This
co uld result in overheating of the con­
verter, requir ing its replacement .
- To assure efficient operation of the Emis ­
sion Control System:
- H ave your vehicle maintained prope rly
and in accordance w ith the se rv ice rec­
ommendat ions in you r Warranty &
M aintenance boo klet.
- L ack of prope r maintenance as we ll as
improper use of the vehi cle w il l impair
the function of the em ission contro l
system and could lead to damage .
@ For the sake of the environment
Even when the Emiss ion Control System is
operat ing properly, the exha ust gas can
have a sul fur -li ke exhaust gas smell under
some operating states . This depends on
the sulfur content of the fuel being used .
Using a different brand of fue l may help,
or filling the tank with lead-free super
grade gasoline .
Avoid damaging the
vehicle
When you are drivi ng on poo r roads, or over
c ur bs, s teep ramps, etc., ma ke certai n that
low -lying parts s uch as spoilers and exhaust
system pa rts do not bottom o ut and get dam­
aged.
T h is is espec ially true for veh icles w ith low­
s lung chassis (spor ts chassis)* and fully load­
ed vehicles. •
•