brake AUDI Q5 2017 Service Manual

CD
CD
.... N ,-... N ..... 0 0 C<'. 00
Audi adapt ive cruis e control and braking gua rd
vehicle . The adaptive cruise control turns off. A
chime sounds as a reminder .
Speed t oo l ow
This message appears if the current speed is too
low
to set or to m aint ain th e des ired speed .
The speed being saved must be at least 20 mph (30 km/h) . The cru ise control is turned off for
speeds lower than 12 mph (20 km/h) . The adap­
tive cruise control remains turned on for speeds
above 95 mph (150 km/h) (override).
It will sta­
b ilize again at 95 mph (150 km/h) when the d riv ­
e r takes his foot off of the gas pedal.
Park ing brake!
The driver message appears when the park ing
brake is activated . Adaptive cruise co ntrol is
turned off . A chime sounds as a rem inder .
117

CD
CD
.... N ,-... N .... 0 0 C<'. 00
-Always drive with the head restraints in
place and properly adjusted.
- Every person in the vehicle must have a
properly adjusted head restraint.
- Always make sure each person in the vehicle
properly adjusts their head restraint. Adjust
the head restraints so the upper edge is as
even as possible with the top of your head.
If that is not possible, try to adjust the head
restraint so that it is as close to th is position
as possible.
- Never attempt to adjust head restraint
while driving. If you have driven off and
must adjust the driver headrest for any rea·
son, first stop the vehicle safely before at·
tempting to adjust the head restraint.
- Children must always be properly restrained
in a ch ild restraint that is appropriate for
their age and size
q page 168.
Examples of improper seating positions
The occupant restraint system con only reduce
the risk of injury if vehicle occupants ore properly
seated.
Improper seating positions can cause serious in·
jury or death. Safety belts can only work when
they are properly positioned on the body . Im·
proper seating positions reduce the effectiveness
of safety belts and will even increase the risk of
injury and death by moving the safety belt to crit·
ical areas of the body. Improper seating posit ions
also increase the risk of serious injury and death
when an airbag deploys and strikes an occupant
who is not in the proper seating position. A driver
is responsible for the safety of all vehicle occu·
pants and especially for children . Therefore:
.. Never allow anyone to assume an incorrect
seat ing pos ition when the vehicle is being used
¢ ,&. .
The following bulletins list only some sample po·
sitions that will increase the risk of serious injury
and death. Our hope is that these examples will
make you more aware of seating posit ions that
are dangerous.
Driving safety
Therefore , whenever the vehicle is moving :
-never stand up in the vehicle
- never stand on the seats
- never kneel on the seats
- never ride with the seatback reclined
- never lie down on the rear seat
- never lean up against the instrument panel
- never sit on the edge of the seat
- never s it sideways
- never lean out the window
- never put your feet out the window
- never put your feet on the instrument panel
- never rest your feet on the seat cushion or back
of the seat
- never ride in the footwell
- never ride in the cargo area
A WARNING
Improper seating positions increase the risk
of serious personal injury and death whenever
a vehicle is being used.
-Always make sure that all vehicle occupants stay in a proper seating position and are
properly restrained whenever the vehicle is
be ing used .
Pedal area
Pedals
The pedals must always be free to move and
must never be interfered with by a floor mot or
any other object.
Make sure that all pedals move freely without in·
terference and that nothing prevents them from
returning to their original positions .
Only use floor mats that leave the pedal area free
and can be secured with floor mat fasteners .
If a brake circuit fails, increased brake pedal trav­
el is required to bring the vehicle to a full stop .
A WARNING
-
Pedals that cannot move freely can cause loss
of vehicle control and increase the risk of seri·
ous injury. ""
135

Driving safety
-Never place any objects in the driver's foot­
well. An object could get into the pedal area
and interfere with pedal function. In case of
sudden braking or an accident, you would not be able to brake or accelerate!
- Always make sure that nothing can fall or
move into the driver's footwell.
Floor mats on the driver side
Always use floor mots that con be securely at­ tached to the floor mot fasteners and do not in­
terfere with the free movement of the pedals.
• Make sure that the floor mats are properly se­
cured and cannot move and interfere with the
pedals
c> _& .
Use only floor mats that leave the pedal area un ­
obstructed and that are firmly secured so that
they cannot slip out of position. You can obtain
suitable floor mats from your authorized Audi
dealer .
Floor mat fasteners are installed in your Audi.
Floor mats used in your vehicle must be attached
to these fasteners. Properly securing the floor mats will prevent them from sliding into posi­
tions that could interfere with the pedals or im­ pair safe operation of your vehicle in other ways.
A WARNING
Pedals that cannot move freely can result in a
loss of vehicle control and increase the risk of
serious personal injury.
- Always make sure that floor mats are prop­
erly secured.
- Never place or install floor mats or other
floor coverings in the vehicle that cannot be
properly secured in place to prevent them
from slipping and interfering with the ped­
als or the ability to control the vehicle.
- Never place or install floor mats or other
floor coverings on top of already installed
floor mats. Additional floor mats and other
coverings will reduce the size of the peda l
area and interfere with the pedals .
- Always properly reinstall and secure floor
mats that have been taken out for cleaning .
136
-Always make sure that objects cannot fall
into the driver footwell while the vehicle is
moving. Objects can become trapped under
the brake pedal and accelerator pedal caus­
ing a loss of vehicle control.
Storing cargo correctly
Loading the luggage compartment
All luggage and other objects must be properly stowed and secured in the luggage comport­
ment.
Fig. 152 Safe load positioning : place heavy ob jects as low
and as far forward as poss ib le.
Loose items in the luggage compartment can
shift suddenly, changing vehicle handling charac­
teristics. Loose items can also increase the risk of
serious personal injury in a sudden vehicle ma­
neuver or in a collision .
• Distribute the load evenly in the luggage com­
partment.
• Always place and properly secure heavy items in
the luggage compartment as low and as far for­
ward as possible
c>fig. 152.
• Secure luggage using the tie-downs provided
c> poge 67.
• Make sure that the rear seatback is securely
latched in place.
A WARNING
Improperly sto red luggage or other items can
fly through the vehicle caus ing serious per­
sona l injury in the event of hard braking or an
accident. To help reduce the risk of serious
personal injury:

Intelligent Technology
Intelligent Technology
Electronic Stabilization
Control (ESC)
Description
The Electronic Stabilization Control (ESC) reinfor­
ces driver safety . It reduces the risk of slipping
and improves driving stability. ESC detects crit i­
cal s ituations such as the vehicle oversteering
and understeering or the wheels sp inning. The
veh icle is stab ilized by applying the brakes or re­
ducing engine torque . Once t he ESC is active, the
indicator light
Ji) blinks in t he instrument clus­
ter.
The fo llow ing systems are integrated in the ESC :
Ant i-loc k brake system (ABS)
ABS preve nts the wheels from locking up when
braking. The veh icle can still be steered even dur­
ing hard brak ing. Apply steady pressure to the
brake pedal. Do not pump t he pedal. A pulsing in
the brake pedal indicates that the system is help ­
i n g you to brake the vehicle .
Br ake assist system
The brake assist system can decrease brak ing dis­
tance . It increases braking power when the driver
presses the brake pedal quick ly in emergency sit­
uations . You must press and hold the b rake pedal
until the situa tion is over. In vehicles w it h adap­
tive c ruise contro l* , the brake assist system is
mo re sensit ive if the di stance de te cte d to the ve­
h icle ahead is too small.
Anti -slip regulation (ASR)
ASR reduces eng ine power when the drive wheels
begin to spin and adapts t he force to the road
conditions . This makes it easie r to sta rt, acceler­
ate and dr ive up h ills.
Electronic differential lock (EDL )
The EDL brakes w heels that a re spinning and
transfers the drive power to the other whee ls .
This f unction is not avai lab le at higher speeds.
In extreme cases, EDL automatically switches off
to help keep the brake on the braked wheel from
186
overheating . EDL will sw itch on again automati ­
ca lly when conditions have returned to normal.
Steering recommendation
The ESC he lps to s tabilize the vehicle by chang ing
t h e s teer ing torque.
On vehicles with dynam ic steeri ng*, ESC helps
stab ilize the steer ing in crit ica l sit uat io ns.
Selective wheel torque control
Se lective wheel torque cont rol is used when driv­
i ng on curves. The front whee l on the inside of
the curve or both wheels on the inside of the cu rve are braked se lectively as needed. This al­
l ows mo re precise dr iving in c urves . The applica­
ble system may not ac tiv ate when d riving in wet
o r snowy cond it ions.
_&. WARNING
- The ESC and i ts in teg ra ted systems can not
overcome the laws of physics . This is espe ­
cially important on slippery or wet roads. If
the systems begin act ing to stab ilize your
veh icle, you should immediately change
your speed to match the road and traffic conditions. Do not let the increased safety
provided by t hese systems tempt yo u to
take risks. Doing so will i ncrease the r isk of
a loss of vehicle con trol, collisi on and se ri­
ous person al injur ies.
- Always a dapt your speed to road, traffic and
weather condi tions. The risk of los ing c on­
t rol of the vehicle in creases w hen driving
too fast, es pecially through curves and on
slippe ry or wet roads, and when driving too
close to ve hicles up ahead. The ESC and its
integ rated systems cannot always prevent
col lisions - there is still a risk of accidents!
- Always accelerate w ith special care on even,
smooth su rfaces s uch as those that are wet
or covered wit h ice and snow. The drive
wheels can spin even w it h these assistance
sys tems t hat cannot a lways help to reduce
t he risk of loss of vehicle co ntro l.

Inte llig ent Techn olo gy
Hill descent assist
The hill descent assist makes it possible to drive
down an incline at a constant speed .
~~,·~ ('l)ofF ___ P..1 --- fl~ IIL..~
---
Fig. 186 Top of the center conso le: hill descent assist but­
ton
Fig. 187 Display: hill descent assist
.. Press the~ button in the center console
¢ fig . 186 or on the shift gate . The button will
illuminate .
" Press the button again to switch it off. The di-
ode in the button will go out .
H ill descent ass ist brakes all four wheels auto­
matically in order to limit speed when driving ei­
ther forwa rd o r reverse on hills with a grade up to
approx imately 50%.
When the hill descent assist is on, the current
driving speed, when your vehicle entered the in­
cline is maintained.
It is only possible to switch
on the assist when driving slower than 37 mph
(60 km/h). The assist works between app roxi ­
mately 2 and 19 mph (4 and 30 km/h) . The driver
can increase or decrease the vehicle speed within
these limits by depressing the accelerator or
brake pedal In addition, vehicle steerability is in­
creased due to the braking distribution when
driving in reverse .
18 8
There must be however sufficient ground adhe­
sion . The hill descent assist can
no t do its job if
the incline is icy or if the incl ine ground is loose
¢ &.
The system does not work at speeds between 19
and 37 mph (30 and 60 km/h). The system is
then in the ready-mode. The diode in the button
will come on . The system automatically sw itched
off when you drive faster than 37 mph (60 km/ h) . The diode will go out in this case .
Active control at a specific speed up to approxi ­
mately 19 mph (30 km/h) will appear in the in­
strument cluster display
c:> fig. 187 . Two dashes
" •• " w ill appear in the ready mode .
Hill descent assist is automatically activated un­
der the following conditions:
- the diode in the button ill uminates,
- veh icle speed is below approximately 19 mph
(30 km/h)
- the incl ine is 10%.
& WARNING
- Always adapt your speed to the weather,
road and traffic cond itions. Do not let the
increased safety provided tempt you into
taking risks.
-
-The hill descent assist system cannot over­
come the laws of phys ics. Your driving style
must always be adapted to the current road
and traffic conditions.
- The hill descent assist may not be ab le to
hold your vehicle at a constant speed under
all cond itions wh ile driving on an incline (for
example if ground under the vehicle is
loose).
Notice about data
recorded by the Event
Data Recorder and
vehicle control modules
E ven t Data R eco rde r
This vehicle is equipped with an Event Data Re ­
corder ( EDR). The main purpose of an EDR is to
record, in certain crash or near crash-like .,,_

CD
CD
.... N ,-... N ..... 0 0 C<'. 00
situations, such as an a irbag dep loyment or hit ­
ting a road obstacle, data that wi ll assist in un ­
derstanding how a vehicle 's systems performed.
The EDR is designed to record da ta rela ted to ve­
hicle dynamics and safety systems for a short pe­
riod of time, typically 30 seconds or less . The
E DR in th is veh icle is des igned to record such da­
ta as:
- How various systems in your vehicle were oper­
at ing;
- Whether o r not the driver and passenger safety
belts were buckled/fastened;
- How far ( if at all) the dr iver was depressing the
acce lerator and/or brake peda l; and,
- How fast the vehicle was trave ling.
These da ta ca n he lp provide a better understand­
ing of the ci rcumstances in which crashes and in ­
juries occur. NO TE: EDR data are reco rded by your
vehicle only if a non-triv ia l crash situation occurs ;
no data are recorded by the EDR under normal
driving conditions and no personal data (e.g., name, gender, age, and crash location) are re ­
corded . H owever, other parties, such as law en­
forcement, could combine the EDR data w ith the
type of personally identify ing dat a routine ly ac­
q uir ed dur ing a crash invest iga tion.
To read data reco rded by an EDR, specia l equip­
ment is req uired, a nd access to t he veh icle or the
E DR is needed. I n add it io n t o the veh icle ma nu­
facture r, ot he r p arties, s uch as law enfor cement,
that have the specia l equipment, can read the in ­
formation if they have access to the vehicle or the
EDR.
Some state l aws restrict the retr ieval or down­
loading of data stored by EDRs insta lled in a vehi ­
cle for the express purpose of retrieving data af ­
ter an accident or crash event without the own ­
er's consent.
Aud i will not access the EDR and/or s imilar data
or give it to others -
- u nless the veh icle owner (or lessee if t he vehi­
cl e h as bee n leased) agrees; or
- u pon the officia l request by the po lice; o r
- upon the order of a court of law or a govern-
ment agency; o r
Intelligent Technology
- for the defense of a lawsuit thro ugh the jud ic ia l
discovery process.
- Aud i may a lso use the data for resea rch about
vehicle operation and safety performance or
provide the data to a third party for research
purposes witho ut identify ing the specif ic veh i­
cle or information about the ident ity of its own­
er or lessee and only after the recorded veh icle
data has been accessed .
Vehicle control modules
You r vehicle is also eq uipped w ith a number of
electronic control modules for various vehicle
systems, such as engine management, emiss ion
contro l, airbags, and safety be lts .
These elect ronic contro l modu les record data
during norma l vehicle operation that may be
needed by trained techn ic ians for diagnostic and
repa ir purposes . The recording capab ility of these
modules is lim ited to data (no sound is record ­
ed) . Only a sma ll amount of data is actua lly re­
corded over a very lim ited period of time, or stor­
ed whe n a system fault is de tected by a contro l
module . Some of the da ta s tored may rela te to
vehicle speed, direction, or braking, as well as re ­
straint system use and performance in the event
of a crash . Stored data can also only be read and
downloaded wit h specia l equipment that is di­
rectly connected to the vehicle.
{!) Tips
Your vehicle may be equipped w ith Aud i con­
nect. Your use of certain Aud i connect fea­
tures requires wire less serv ices that are pro­
v ided by a third party wireless telecommuni­
cations provider . Fo r details regarding how in­
fo rmation ob tained throug h Au di connec t is
colle cted, p ro cessed, tra nsmitted, used, and
s hare d, ple ase see yo ur contra ct with t he
wireless tele commun ications provider and the
"About A udi connect" tab in your vehicle's
MMI:
I MENU ! button > Audi connect > About
Audi connect .
189

Intelligent Technology
Braking
What affects braking efficiency?
New brake pads
During the firs t 25 0 miles (400 km), new b rake
pads do not possess their full braking effect , they
have to be "broken i n" first ¢& .
Operating conditions and driving habits
The brakes on today 's automobiles a re sti ll sub­
ject to wea r, depend ing la rgely on ope rating con­
d itions and dr iv ing habits
c::> .&,. . On veh icles that
are either dr iven most ly in stop-and -go city traf ­
f ic or are driven hard, the brake pads should be
checked by your authorized Audi dea ler more of­
ten than spec ified in the
Warr ant y & Ma inte ­
nance booklet .
Failure to have your brake pads
inspected can result in reduced brake perform­
ance .
On steep slopes, you shou ld use the braking ef ­
fect of the eng ine. This way, you prevent unnec­
essary wear on t he brake system . If you must use
your brakes , do not hold the brakes down cont in ­
uously . Pump the brakes at interva ls.
Oper ating noise
Noises may occur when braking depend ing on the
speed, braking force and outs ide cond itions such
as temperature and humidity .
Effect of wat er and road salt
In certain s ituations, for example after driving
through water, in heavy ra in, after overnight con ­
densat ion or after washing your car, the braking
effect can be reduced by moisture or ice on the brake rotors and b rake pads . The brakes must be
dried first with a few careful b rake applications.
At higher speeds and with the windshie ld wipers
turned on, the brake pads press aga inst the brake
rotors for a short amount of t ime. Th is occurs at
regular intervals w ithout the driver noticing and
provides fo r bette r brake response time under
wet conditions.
The effectiveness of the brakes can be reduced
when the vehicle is dr iven on a salt-covered road
and the brakes a re not used . Likewise , you clean
off acc umu lated salt coat ing from brake d iscs
190
and pads with a few cautious app lications of the
bra ke
c::> & .
Corrosion
There may be a tendency fo r dirt to build up on
the b rake pads and corrosion to form on the discs
if the car is not dr iven regu la rly or only for short
trips wi th little use of the brakes .
If the bra kes are not used frequent ly, o r if cor ro­
s io n has formed on the discs , it is advisable to
clean off the pads and discs by b rak ing firmly a
few times from a moderately high speed
c::> & .
Faults in the brake system
If you s hou ld notice a sudden increase in brake
pedal travel, then one of the two brake circu its
may have fai led ¢
_&.
Low brake fluid level
Malfunctions can occur in the brake system if the
brake fluid level is too low . The brake fluid level
i s monitored electronically.
Brake booster
The brake booster increases the pressure that
you generate with the brake pedal. It only oper­
ates wh ile the eng ine is r unning or w ith the igni­
tion switched on (hybr id drive *) ¢ & .
Brake lining wear statu s
Brake lining wear may be checked by visual in­
spection of the condition of the brake pads
through the openings in the wheel. If necessary,
the wheel may be removed for t his inspection
¢page 255, Replacing wheels .
A WARNING
-New brake pads do n't have the best s top­
ping power and m ust be "broken-in" du ring
the initial 250 miles (400 km) . You can
compensate for this by pressing the brake pedal more firmly . This a lso applies later
when new pads are installed.
- You shou ld perform braking maneuvers for
the purpose of cleaning the brake system
only if road condit ions permit. Other road
users must not be put at risk -you may
cause an accident!

CD
CD
.... N ,-... N ..... 0 0 C<'. 00
-Before descending a steep grade , reduce
speed and shift transm iss ion into a lower
gear or lower driving range. Do not ride the
brakes or hold the pedal down too long or
too often . This could cause the brakes to get
hot and d iminish brak ing efficiency .
- Do not "r ide the brakes" by resting your foot
on the pedal when you do not intend to
bra ke. This may cause the bra kes to over­
heat , premat ure wea r and increased stop­
ping distance.
- Under certa in climat ic and operating condi­
tions su ch as p assing thro ugh w ater, dr iving
in heavy ra in or after washing the vehicle,
the ef fectiveness of the brakes can be re­
duced. In winter, ice can acc umulate on the
brake pads, linings, discs and drums . Care­
fully apply b rakes for a test. Brakes wi ll dry
and ice coatings wi ll be cleaned off after a
few careful brake applications .
- Driv ing for an extended period of time on
salt-covered roads without using your
bra kes can also affect bra king efficiency .
Clean off accumulated sa lt coating from
bra ke discs and pads with a few caref ul
bra ke appl ic a tion s.
- If you damage the front spoiler, or if yo u in­
sta ll a differen t spoi le r, be sure the air flow
to the front br akes is not o bstru cte d. O the r­
wise the br ake system could over heat reduc­
ing the e ffec tiveness of the entire brake sys ­
tem.
- Failure of one brake circuit will imp air the
brak ing capability resulting in an increased
stopping distance . Avoid driving the vehicle
and have it towed to the nearest a uthorized
Audi dealer or qualif ied workshop.
- Never let the vehicle roll to a stop with the
engine shut off .
- If the brake booster is not wor king, the
brake pedal m ust be pressed considerably
harder to make up for the lack of booster
assistance .
Intelligent Technology
Electromechanical power
assist, Dynamic steering
The electromechanical power assist helps the
driver when steering .
Power steering adap ts elec tronically based on
the vehicle speed .
Indicator lights and message s
• Steering defecti ve! Do not drive vehicle!
If this indi ca to r li ght tur ns on and st ays on and
t hi s message appea rs, the powe r steering may
have failed.
Stop t he vehi cle in a safe location as soon as pos­
s ible. Do
not cont inue drivi ng. See yo ur author ­
ized Audi dea ler or o ther qualif ied repa ir facility
for assistance .
l;rij Dynamic steering : Sy stem fault! You can
continue driving
If the indicator light turns on and the message
appea rs , the steer ing may be more diffic ult to
move o r more sensitive than usu a l. Th e steering
m ay also be at an angle when dr iving st raig ht.
D rive slowly to your a uthorized Aud i dea le r or
qualified wo rksh op to have t he malfunct io n cor­
rec ted .
'Iij Dynamic steering: Initializing
Aud i drive select* : if the indicato r light blinks and
the driver message appears, the dynamic steer­
ing* is re init ia liz ed . After sta rting the engine , the
steering wheel will move slig htly . Re -initializa ­
t io n m ight be necessary if the steer ing whee l was
moved hard to t he left and r ight wh ile the veh icle
was not mov ing. The display turns off if the initi­
aliza tion was successful.
(D Tips
- If the . or l~ij indicato r light only stays on
for a shor t time, you m ay cont inue drivi ng.
- The dynam ic stee ring* sta bility systems
r=;, page 186 are no t ava ilable in the event of
a system mal func tio n.
- For add itiona l information on dy namic
steering*
r=;, page 122 .
191

Driving and th e en vironm ent
Driving and the
environment
Breaking in
New engine
The engine needs to be run-in during the first
1,000 miles (1,500 km).
For the first 600 miles (1 ,000 kilometer s):
.,. Do not use full throttle .
.,. Do not drive at engine speeds that are more
than 2/3 of the max imum permitted RPM .
From 600 to 1,000 miles (1 ,000 to 1 ,500
kilometers ):
.,. Speeds ca n gradually be increased to the maxi­
mum perm iss ib le road or eng ine speed .
During and after break-in pe riod
.,. Do not rev the engine up to high speeds when it
is cold. This applies whether the transmission is
in N (Neutral) or in gear .
After the break- in period
.,. Do not exceed maximum engine speed under
any circumstances.
.,. Upshift into the next higher gear
before reach­
ing t he red area at the end of the tachometer
sca le
¢page 8.
During the first few hours of driving, the eng ine's
internal friction is higher than later whe n all the
mov ing parts have been broken in. How well this
break- in process is done depends to a considera­
b le exte nt on the way the vehicle is d rive n during
the firs t 1,000 miles (1,500 kilometers).
{[) Note
Extremely high eng ine speeds a re au tomati­
cally reduced . However, these rpm lim its are
progr ammed for an e ng ine well run -in, not a
new engine.
@ For the sake of the environment
Do not dr ive with u nne cessarily high eng ine
spee ds -upshi fting ea rly saves fuel, reduces
noise and protec ts the enviro nment .
194
· New tires
If your veh icle is runni ng on new tires, d rive very
c ar efu lly fo r the fi rs t 350 miles (500 kilometers)
a fter fi tting.
_& WARNING
New tires tend to be slippe ry and must a lso
be "broken-in". Be sure to remember this dur­
ing the first 350 m iles (500 kilometers) .
Brake gent ly. Avoid following closely behind
other ve hicles or ot her situations that might
require sudden, hard braking.
Catalytic converter
App lies to : vehicles wi th gaso line e ngi ne
-
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 209,
Gasoline .
.,. Never r un the tank down all the w ay to emp ty.
.,. Never put too much mo to r o il in yo ur engi ne
¢ page 221, Adding engine oil 9::r..
.,. Never try to push- or tow-start your vehicle .
The cata lyt ic converter is an efficie nt "clea n-up"
device b uilt into the exhaus t sys tem o f the ve hi­
cle . Th e catalytic converter b urns many of the
po llutants in the exhaust gas before they are re ­
l eased into the atmosphere.
The exclusive use of un le ad ed fuel is critically im ­
portan t fo r the life o f the cataly tic converte r and
proper functio ning of the engine .
A WARNING
The temperature o f the exhaust system is
h igh, both when driv ing and after stopp ing
the eng ine.
-
- Never touch the exhaust tail pipes once they
have become hot. This could resu lt in burns.
- Do not park or operate the vehicle in a reas
where the hot exhaust system may come in
contact with dry grass, b rush, fuel sp ill or
other mate rial which can cause a fire.

CD
CD
.... N ,-... N .... 0 0 c:<: 00
-Do not apply additional undercoating or
rustproofing on or near the exhaust mani­
fold, exhaust pipes, catalytic converter or heat shields. During dr iv ing, the substance
used for undercoating could overheat and
cause a fire.
Q) Note
- Be aware that just one tank filling with
leaded fuel will already ser iously degrade
t h e pe rformance of the catalytic converter .
- Do not exceed the correct eng ine o il level
c:> page 221.
-Do not drive until the fuel tank becomes
complete ly empty. The engine could mis­
fire. Unburned fuel could also get into the
exhaust system and this cou ld cause the
catalytic conve rte r to overheat.
- Do not tur n off the ignition whi le the vehicle
i s mov ing.
- Do not continue to operate your vehicle un­
der these cond it ions, as otherwise fuel can
r each the catalytic converte r. This cou ld re­
su lt in ove rheating of the converte r, req uir­
i ng its replacement.
- To assu re efficient operation of the Emis ­
s ion Control System:
- Have your vehicle maintained properly and
in accordance with the service recommen­
dations in your Warranty
& Maintenance
booklet.
- Lack of proper maintenance as well as im­
proper use of the vehicle will impair the
function of the em ission control system
and co uld lead to damage.
@) For the sake of the environment
Even when the Em ission Control System is op­
erat ing properly, the exhaust gas can have a
sulfur-like exhaust gas smell under some op­
erat ing states. This depends on the su lfu r
conten t of the fuel being used. Using a differ­
ent brand of fue l may he lp, or filling the tan k
with lead -free s uper grade gasoline.
Driving and the envir onment
Diesel particulate filter
App lies to : veh icles w ith diesel en gine
The diese l particu late filter filters near ly all of
the soot particles out of the exhaust. The filter
cleans itself automatica lly under norma l driving
condit ions. If the filter cannot clean itself (for ex­
amp le, because you are only driving short distan­
ces), the filter becomes clogged with soot and
the m symbol for the d iesel part icu late filter il­
luminates
c:> page 31 .
_&. WARNING
-Do not park your veh icle over flammab le
mate ria ls s uch as grass or leaves because
the high temperature of the diesel particu­
late filter cou ld start a fi re.
-
- Do not app ly an underbody pro te ctant in the
exhaust system area or a fire could sta rt .
Avoid damaging the
vehicle
When you are driving on poor roads, or over
curbs, steep ramps, etc., make certain that low­
ly ing parts such as spo ilers and exhaust system
parts do not bottom out and get damaged .
This is especially true for vehicles with low-s lung
chassis (sports chass is)* and fully loaded
vehicles.
Economical and environ­
mentally-friendly driving
General
Your personal style of driving will determine the
economy of your vehicle, as well as exhaust and
noise levels .
Fuel economy, env ironmental impact, and wear
o n your engine, brakes and tires large ly depend
on three factors :
- your pe rsonal d riving s tyle
- operat ing cond itions
- technical limitat ions
If you ant ic ipate what you need to do next and
drive economically, you can easily cut your fuel
195