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General information
Breaking in
A new vehicle must be broken in for the first
1,000 mi les (1,500 km). Do not dr ive at speeds
that will exceed 2/3 of the maximum permitted
engine speed (RPM) for the first 600 miles
(1,000 km), and avoid full acceleration during
this period . You may gradually start increasing
the RPM and the speed between 600 miles
(1,000 km) and 1,000 miles (1,500 km) .
During the first hours of use, the engine has a
higher internal friction than later on when all
moving parts have settled into p lace with each
other.
How the vehicle is driven during the first 1,000
miles (1,500 km) also affects the engine quality.
Drive at moderate engine speeds after the initia l
break-in period, particularly when running a cold
engine . This will reduce eng ine wear and improve
the m ileage .
Do not drive at too low of an engine speed (RPM) .
Shift down if the engine stops running "smooth ly". Extremely high eng ine speeds are automati
cally reduced.
Reducing the risk of vehicle damage
([) Note
When driving on poor roads, by curbs and on
steep ramps , make su re that low-hang ing
components such as the spoiler and exhaust
system do not come into contact with these
or they could be damaged. This especially ap
plies to vehicles with low ground clearance
and vehicles that are heavily loaded.
Driving through water on roads
Note the following to reduce the risk of vehicle
damage when driv ing through water, for example
on flooded roads :
- The water must not be any higher than the bot
tom of the vehicle body.
D riving
- Do not drive faster than walking speed.
A WARNING
After driv ing through water or mud, the effec
tiveness of the brakes may be reduced due to moisture on the brake rotors and brake pads.
A few careful brake applications should dry
off the brakes and restore the full braking ef
fect .
(D Note
- Vehicle components such as the engine,
transmission, suspens ion or electrical sys-
tem can be severely damaged by driving
through water.
- Always switch the Start/Stop system" off
when driving through water¢
page 84.
(D Tips
-Determine the depth before driving through
water.
- Do not stop the vehicle, drive in reverse or
switch the engine off when driving through
water.
- Keep in mind that oncoming vehicles may
create waves that raise the water level and
make it too deep for your vehicle to drive
through safely.
- Avoid driv ing through salt water, because
this can cause corrosion.
Economical and environmentally-friendly
driving
T he amount o f fuel consumpt ion, the environ
mental impact and the wear to the engine,
brakes and tires depends mostly on your driving
style. With an ant icipatory and economic driving
style, fuel consumption can be reduced by ap proximately 10-15%. The following tips will help
you conserve the environment and your money at the same time.
Anticipatory driving
A vehicle uses the most fuel when accelerating.
When you drive with anticipation, you do not
need to brake as often and so you accelerate less.
When possible, let your vehicle coast with a gear ..,.
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style.
Operating noise
Noises may occur when bra king depend ing o n the
speed, b raking force and ou ts ide cond itions su ch
as tempe rature and humidity.
W et conditions or road salt
In ce rtain s ituat ions, for example after dr iving
through water, in heavy ra in or afte r washing
your car, the bra king effect may be reduced due
to moisture or ice on t he b rake ro to rs and br ake
pads . The br akes mus t be "dried" f irs t with a few
careful brake applications .
At highe r speeds and with the windsh ie ld w ipers
turned o n, the br ake p ads press against the br ake
r otors for a short amoun t of time . This action,
which is not felt by the driver, happens at regular intervals and ens ures a better reaction time for
the brakes in wet weather.
The braking effe ct can also be reduced if you are
d riving on salted roads and you do not apply t he
brakes for long periods of time . The layer of salt
on the bra ke rotors and pads must be worn off
f irst when the brakes are app lied.
Cor rosion
L eaving the vehicle par ked for long pe riods of
time, low mi leage and avoiding heavy braking
can cont ribute to corrosion on the brake rotors
and to dirty brake pads.
If you usually avo id heavy b raking or if there is
corrosion present, occasional heavy braking at h igh speeds is recommended to clean the brake
rotors and pads¢
A.
Brake system malfunct ion
If yo u no tic e th at the brake peda l travel has sud
denly
increased, then a brake c ircuit in the dual
circuit brake system may have malfunctioned. Drive to an aut ho rized Aud i dea le r or a uth orized
Aud i Service Facility immediately to have the
problem corrected. On the way there, drive with
reduced speed and keep in mi nd that you w ill
need a longer dista nce to stop and you w ill need
to p ress the b rake pedal harde r.
Intellig ent Technology
Low brake fluid level
When the br ake fluid level is low, malfu nctions in
the brake system may occur . The brake fluid level
is electronically monitored .
Brake booster
The brake booster ampl ifies t he p ress ure you ap
ply to the brake pedal.
A WARNING
- Onl y ap ply the bra kes for the purpose o f
cleaning the brake sys tem when road and
traffic conditions permit. You must not en
danger other roa d users . This increases the
risk of an accident.
-
- Never let the ve hicle roll while the engine is
stopped because this increases the risk of an
accident.
(D Note
- Never let the brakes "rub" by pressing the
peda l lightly when braking is not actually
necessary. This causes the b rakes to over
heat and increases braking distance and
causes wear.
- Before driving downhill a long distance on a
steep hill, decrease your speed and select a
lower gear . This makes use of the engi ne
bra king effec t and relieves the brakes. If
you need to bra ke ad ditio na lly, bra ke in in
t erva ls and not continuously.
(D Tips
- If the brake boos ter is not work ing , you
must press t he b rake peda l w ith much more
force than normal.
- If you retrofit your vehicle with a front s po il
er, wheel covers or sim ila r i tems, make su re
t ha t the air flow to the fro nt wheels is n ot
i nt errup ted. Otherwise t he b rake system
c an become too hot .
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- To reduce the risk of cuts, protect yourself
from sharp metal components when wash
ing the underbody or the inside of the wheel
housings .
- After washing the vehicle, the brak ing effect
may be delayed due to mo isture on the
brake rotors or ice in the w inter . This in
creases the risk of an acc ident. The brakes
must be d ried fi rst w ith a few careful b rake
applications.
(D Note
- If you wash t he vehicle in an automatic car
wash, yo u m ust fold the exte rior m irrors in
to reduce the risk of damage to the mirrors.
Power folding exte rior m irrors* must on ly
be fo lded in a nd out using the power folding
fu nct ion.
- To reduce the risk of damage to the rims
and tires, compare the width between the
whee ls on your vehi cle w it h t he dis tan ce be
tween the g uide rai ls in the car wash.
- To reduce t he risk of damage, compare the
height and width o f you r vehicle wi th the
Ca re and cleaning
height and w idth of the inside of the car
was h.
- T o red uce the risk of pa int damage, do not
was h the vehicle in d irect sun light .
- T o red uce the risk of d am age to the s urf ace,
do not use insect removing sponges, k itche n
sponges or similar items .
- Mat te finish painted veh icle components:
- To reduce the risk of damage to the sur-
face, do not use polishing agents or hard
wax .
- Never use protective wax. It can destroy
the matte finish effect .
- Do not place any stickers or magnetic
signs on vehicle parts painted with matte
finish paint . The paint cou ld be damaged
when the stickers or magne ts are re
moved .
@ For the sake of the environment
Only wash t he vehicle in facilities s pec ially de
s ign ed for that pu rpose . This will reduce the
r isk of dirty wate r contaminated with oil from
ente ring the sewe r sys tem.
Cleaning and care information
W hen cleani ng and ca ring for individua l vehicle
components, refer to the follow ing tables . The
i n formation contained there is simply recom
mendations. For quest ions or for components t
h at are not liste d, co n su lt an autho riz ed Au di
dealer or authorized A udi Se rvice Fac ility . Also
fo llow the information found in ¢ .&. .
Exterior cleaning
Component Situation Solution
Windshield wiper
Deposits c:> page 56, Cleaning the wiper blades
blades
Headlights /
Deposi ts So
ft spo nge wi th a mild so ap sol ution3>
tail lights
S ensors /
Deposits Sensors: soft cloth w it h solvent-free cleaning solut ion
camera lenses Camera le nses: soft clot h w ith alcohol-free cleaning solu-
tion
Snow/ice H
and br ush/solvent-free de-icing spray
Wheels Road salt Water
Brake dust Acid-free special cleaning solution
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clean surface .
.,. Install the alignment pin (from the vehicle tool
kit) by hand into the empty hole
c:> fig . 285.
.,. Remove the rest of the wheel bol ts.
"" Remove the wheel
c:>(D . The alignment pin re -
mains in the hole while do ing this .
Install a whee l
Read the directions on c:> page 365 when instal
ling unidirectional tires .
.,. Slide the wheel on over the alignment pin
c:> (D.
.,. Install the wh eel bo lts and tighten gent ly using
the hex socket.
.,. Remove the alignment pin and also tighten the
remaining wheel bolt .
.,. Carefully lower the vehicle using the vehicle
jack* .
.,. Tighten the wheel bolts in a diagona l pattern
us ing t he wheel wrench .
The wheel bolts must be clean and loosen/tight e n easi ly. Check the contact surfaces for the
wheel and hub . Contaminants on these surfaces
must be removed before installing the wheel.
& WARNING
Never use the hex socket in the screwdr iver
handle or the hex socket wrench with the
ratchet to loosen or tighten the whee l bolts.
You will not attain the req uired tightening
specification, which w ill increase the risk of an
accident .
When removing or installing the whee l, the
r im could hit the brake rotor and damage the
rotor. Work carefu lly and have a second per
son help you.
(D} Tips
- When mounting tires w ith u nidi re ctional
t read desig n
make sure the tread pattern is
po inted the r ight way
c:> page 365.
- 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
-
Em ergenc y ass is tanc e
hub. Remove all dirt from these s urfaces be
fore remounting the whee l.
Unidirectional tires
A unidirectional tire profi le is identified by a rrows
that point in the running direct ion on the tire
s idewall. You must always adhere to the spec i
fied ru nning direction . Th is is necessary ensure
the tire 's opt imum performance in regard to ad
hesion , running no ise, frict ion and hyd roplaning.
To benefit fully from the advantages of the uni directional t ire design, you should replace faulty
t ir es as soon as possible and restore the cor rect
run ning direction on a ll of the t ires .
Finishing
.,. Rei nstall the caps on the wheel bo lts if neces
sary .
.,. Store the ve hicle too l kit in its designated
place.
.,. Store the replaced tire securely in the luggage
compartment
i=> page 261.
.,. Check the tire pressure on the installed wheel
as soon as possible .
.,. Correct the t ire pressure and store it in the In
fotainment system
i=> page 352 .
.,. The whee l bolt tigh tening specification must be
120
ft l bs ( 160 Nm) . Check it as soon as possi
b le with a torque wren ch. Drive carefu lly unti l
then.
.,. Have the fau lty whee l replaced as quickly as
possible .
(D Tips
-If you notice that the wheel bo lts are cor
roded and d ifficult to turn while changing a
tire, they shou ld be replaced before you
check the tightening torque.
- Dr ive at reduced speed unti l you have the
tightening torques checked.
Notes on wheel changing
Please read the information c:> page 340 if you
are going to use a replacemen t tire which is d if-
ferent from the tires on your vehicle. .,,.
365