150 Intellig ent technolog y
Snow chain s
Where t ire cha ins are mandatory on certain
roads, this normally a lso applies to vehicles
with a LL-wheel drive
¢ page 204, Snow
chains .
Replacing wheels /t ir es
Vehicles with all-wheel drive must a lways
have tires of the same size. Also avoid t ires
with different tread depths. For details see
page
¢ page 199, New tires and replacing
tires and wheels.
Off -Ro ad dri ving?
Your Aud i does not have enough ground clear
ance to be used as an off -road veh icle .
It is
therefore best to avoid rough tracks and un
even terrain as much as possible . Also refer to
¢ page 153.
A WARNING
-Always adjust your driving to road and
traffic conditions. Do not let the extra
safety afforded by all-wheel drive tempt
yo u into taking extra risks.
- Although the all-wheel dr ive is very ef
fective, always remember that braking
capacity is limited by t ire traction . You
should the refore not dr ive at excessive
speeds on icy or slippery road su rfaces.
- On wet road surfaces, be careful not to
dr ive too fast because the front wheels
cou ld beg in to s lide on top of the w ater
(aquaplaning) .
If this should occ ur, you
will have no warning from a sudden in
crease in engine speed as with a front
wheel drive vehicle. A lways drive at
speeds wh ich are suited to the road con
ditions. -risk of crash.
Energy management
Starting ability is optimized
Energy management controls the distribution
of electrical energy and thus optimizes the
availability of electrical energy for starting the engine.
If a vehicle with a conventional energy system
is not driven for a long per iod of t ime, the bat
tery is discharged by idling current consumers
(e .g. immobilize r). In certa in circumstances it
can resu lt in the re be ing insufficient energy
available to start the engine.
Intelligent energy management in your vehi
cl e ha ndles the distribution of e lectr ica l ene r
gy . Start ing ability is ma rkedly improved and
the life of the battery is extended .
Bas ica lly, energy management consists of
b att ery diagn osis, idlin g current manage
m ent
and dynamic en erg y manag em ent .
Battery di agnosis
Battery diagnosis continuously determines
the state of the battery. Sensors determine
battery voltage, battery cu rrent and battery
tempe rature. This determines the current
state o f charge and the power of t he battery .
Idling current m anagem ent
Idling current management reduces energy
consumption while the vehicle is standing .
With the ig nition sw itched off, it controls the
energy supply to the various electri ca l compo
nents. Da ta from ba ttery diagnos is is cons id
ered.
Depend ing on the batte ry's state of cha rge,
individual cons ume rs a re g radually turned off
to prevent excessive discharge of the battery
and th us maintain starting capability.
Dynamic energy manag ement
While the vehicle is being d riven, dynamic en
ergy ma nagement distr ibutes the energy gen
era ted a ccord ing to t he needs of the individ u-
al components .
It regula tes consumption, so
t h at more electrical energy is not being used ..,.
184 Checking and filling
Therefore, the brake fluid must be changed
ev ery two yea rs. A lways use new brake fluid
which conforms to Federal Motor Vehicle Standard "FMVSS 116 DOT 4".
Brake fl uid is rep laced according to the Audi
maintenance service schedule . Your author
ized Audi dealer is equipped with the necessa
ry special tools and rep lacement parts, has
the necessary expertise, and can d ispose of
the used fluid .
A WARNING
-Brake fluid is po isonous . It must be stor
ed only in the closed orig inal container
out of the reac h of children!
- Brake fa ilure can result from old o r inap
propriate b rake fluid. Observe these pre
c aut ions:
- Use on ly brake fluid that meets SAE
specif icat ion
J 1703 and conforms to
Federal Motor Vehicle Standard 116 .
Always check with your authorized Audi
dealer to make su re you are using the
correct brake flu id. The correct type of
b rake fluid is a lso indicated on the
b rake fluid reservoir.
- The brake fluid must be new. Heavy use
of the brakes can cause a vapor loc k if
t he brake fl uid is left in the system too
long. This can ser ious ly affect the effi
ciency of the brakes as well as yo ur
safety . This could result in an accident.
CJ) Note
Br ake fl uid will damage the paint of your
veh icle.
@.l For the sake of the environment
Because of the problem of prope r d isposa l
of brake fl uid as we ll as the speci al tools
req uired and the necessary expert ise, we
recommend that you have the brake fluid
changed by your authorized Audi dealer .
Battery
General information
Your vehicle is equipped with a specia l bat
te ry, an
ACM battery. This ba tte ry is located
i n the luggage compartmen t an d must be re
placed with an origina l equipment battery .
U nder normal operating conditions, the bat
tery is
maintenance -free.
Have the batte ry checked when yo u take your
vehicle in for service. You are well advised to
replace a battery that is o lde r than 5 years.
Disconnecting the battery te rminals
Some vehicle fu nctions (power window reg u
lators, for ex ample) are lost if the batte ry te r
mina ls are disconnected. These f unctions have
to be relearned after the battery termina ls are
connected again. To prevent this, the battery
sho uld only be disconnected from the veh icle
electrical system when abso lutely necessary
for repairs.
Vehicles not driven for long periods
If you do not drive your vehicle over a period
of seve ral days or weeks , e lectrica l compo
nents are gradually cut back or switched off.
This reduces energy consumption and ma in
ta ins start ing capability over a longer period
r:> page 150. Some of the convenience func
t ions may not operate, such as the inter ior
li ghts or powe r seat ad justment. The conven
ience funct io ns w ill be available again when
you sw itch on the ign it io n and s tart the en
gine.
Winter operation
D uring the winte r months, battery capac ity
tends to dec rease as temperatures drop. This
is because mo re power is a lso co nsumed wh ile
sta rting, and the headlig hts, rear win dow de
f ogger, e tc., are used more often .
Avoid unnecessa ry powe r consumpt ion, pa r
t icu lar ly i n city traffic o r when traveling only
sho rt dist ances. Let yo ur au thori zed Au di
dealer check the capacity of the vehicle bat -
tery before winter sets in
r:> page 187. A well ll>
Groove
means the space between two adjacent tread
ribs.
Load rating (code)
means the maximum load that a tire is rated
to carry for a g iven inflation pressure. You
may not find this information on all tires be
cause it is no t req uired by law.
Maximum load rating
means the load rating for a t ire at the max i
mum permissible inflation pressure for that
tire.
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure
to which a tire may be inflated. Also called "maximum inflation pressure."
Normal occupant weight
means 150 lbs. (68 kilograms) times the
number of occupants seated in the vehicle up
to the total seating capacity of your vehicle.
Occupant distribution
means distribution of occupants in a vehicle.
Outer diameter
means the overa ll diamete r of an inflated new
tire.
Overall width
means the linear distance between the exteri
ors of the sidewalls of an inflated tire, includ
in g elevations due to labeling, decorations, or
protective bands or ribs.
Ply
means a layer of rubber-coated parallel cords.
Tires and wheels 191
Production options weight
means the combined weight of those installed
regular production options we ighing over 5
lbs. (2.3 kg) in excess of those standard items
which they replace, not previously considered
in curb weight or accessory weight, including
heavy duty brakes, ride levelers, heavy duty
battery, and special trim.
Radial ply tire
means a pneumatic tire in wh ich the ply cords
that extend to the beads are laid at substan
tia lly 90 degrees to the center line of the
tread .
Recommended inflation pressure
see ¢ page 190, Cold tire inflation pressure.
Reinforced tire
means a t ire designed to operate at higher
loads and at higher inflat ion pressures than
the corresponding standard tire. Reinforced
tires my be identified as "XL", "xl", "E XTRA
LOAD", or "RF" on the sidewall.
Rim
means a metal support for a tire or a tire and
tube assembly upon which the tire beads are
seated.
Rim diameter
means nom inal d iameter of the bead seat. If
you change your wheel s ize, you will have to
purchase new tires to match the new rim di
ameter.
Rim size designation
means r im diameter and width .
Rim width
means nominal distance between rim flanges .
Sidewall
means that portion of a tire between the
tread and bead. •
•
-Che ck the tire p re ss ure on the spare imme
diatel y afte r mounting.
- Hav e the wheel b olt tightening torque
checked with a torque wrench a s soon a s
possib le by you r auth orized Audi dealer or
a qu alified ser vice sta tio n.
- With steel and allo y w heel rim s, the wheel
bolts are correctl y tight ened at a to rq ue of
90 ft lb (1 20 Nm ).
- If yo u notice while changin g a ti re th at the
wheel bolts are co rrod ed and diff icult to
turn , then they should be repl aced before
y ou check the t ighten ing to rqu e.
- Replace the flat t ire with a new one and
ha ve it installed on your vehicle as soon as
possib le . R emount th e wh eel co ver .
Until then, driv e with extra care and at re
d uced speeds.
A WARNING
- If you are going to equip your vehicle
with t ires or rims wh ich differ from those
w hich were factory installed, then be
sure to read the informat ion
~page 199,
New tires and replacing tires and
wheels.
- Always store the tools securely in lug
gage compa rtment. Otherw ise, in an ac
c ident o r sudden mane uver they could fly
f orward, causing inju ry to passengers in
the vehicle .
(D Note
Do not use commerc ia lly available t ire
sealants. Othe rwise, the elec trical compo
nents of the tire pressure monitoring sys
tem* will no longer work properly and the
sensor for the tire pressure monitoring
system wi ll have to be replaced by a qua li
fied workshop.
What do I do now? 217
Jump-starting
General
If necessary, the engine can be started by
connecting it to the battery of another vehi
cle.
If the engine should fail to start because of a
discharged or weak battery, the battery can be
connected to the battery of
another vehicle,
us ing a
pair of jump er cabl es to start the en
gine.
Both batteries must be rated at 12 volts . The
capacity (Ah) of the booster battery must not
be substantia lly less than the capac ity of the
discharged battery .
Jumper cables
Use only jumper cables of suff ic ient ly large
cro ss se ction to safely car ry the starter cur
rent . Refer to the manufacturer's specifica
tions .
Use only jumper cab les which have
insulated
term inal clamps and are properly marked for
dist inction:
plu s(+) cable : in most cases colored r ed
m inu s(-) cable :
in most cases colored black
A WARNING ~
Batteries contain e lectric ity, acid, and gas .
Any of these can cause very serious or fata l
injury. Follow the instructions below for
safe handling of your vehicle's battery.
-Always shield your eyes and avo id lean-
ing over the battery whenever poss ible.
- A discharged battery can a lready freeze
at temperatures just below 32 °F (0 °(). Before connect ing a jumper cable , the
frozen battery must be thawed com
pletely, othe rwise it could explode .
- Do not allow battery acid to contact eyes
or skin . Flush any contacted area with
wate r immediately .
- Improper use of a booster battery to
start a vehicle may cause an explosion. •
•
218 Wh at do I do now ?
-Vehicle batteries generate explos ive gas
es. Keep sparks, flame and lighted ciga
rettes away from batteries.
- Do not try to jump start any vehicle with
a low acid level in the battery.
- The voltage of the booster battery must
also have a 12-Volt rating. The capacity
(Ah) of the booster battery should not be
lower than that of the discharged bat
tery. Use of batteries of different voltage or substant ially different "Ah" rating
may cause an explos ion and personal in
Jury.
- Never charge a frozen battery. Gas trap
ped in the ice may cause an explosion.
- Never charge or use a battery that has
been frozen. The battery case may have
be weakened.
- Use of batteries of different voltage or
substant ially different capacity (Ah) rat
ing may cause an explosion and injury.
T he capacity (Ah) of the booster battery
should not be lower than that of the dis
charged battery.
- Before yo u check anything in the engine
compartment, always read and heed all
WARNINGS ¢
page 172, Working in the
engine compartment.
(D Note
- Applying a higher vo ltage booster bat
tery wi ll ca use expensive damage to sen
sitive electronic components, s uch as
control units, relays, radio, etc.
- There m ust be no e lectrica l contact be
tween the vehicles as otherwise current
could already start to flow as soon as the
positive(+) terminals are connected .
(0 Tips
-The discharged battery must be proper ly
connected to the vehicle's electrical sys
tem.
- Switch off any car phone, or follow the
car phone instructions for this situation.
Use of jumper cables
Make sure to connect the jumper cable
clamps in exactly the order described below!
F ig . 1 63 Luggage compartment: co nnectors for a
charge r and jump start cables
Fi g. 1 64 Jump start us ing the battery in a nother vehi
cle: A· Fema le socket, B • D isc harge
The battery is located in the luggage compart
ment¢
page 185. T he front lid can be opened
i n an emergency¢
page 34.
Do not connect the negative cable d irectly to
the negative term inal on the battery. Connect
it to a
jump st a rt pin instead ¢ fig. 163.
Connect the po sitive cable (red ) to the
positive terminal
1. Co nnect one end of the red jumper cable
¢
fig . 164 (!) to the positive terminal of
discharged battery @.
2 . Connect the other end of the red jumper
cable to the positive terminal @of the
booster battery @.
Connect the n egativ e cable (black ) to the
n egati ve terminal
3. Connect one end of the b lack jumper ca
ble @ to the negative terminal of the
booster battery @. .,.
Fuel supply too low . . . . . . . . . . . . . . . . . 18
Gasoline ... .................. .... 167
Gasoline additives ................. 168
Octane rating ............ .... .. ... 167
Recommendation ......... .. .. .. .. . 167
Refueling .. ................ ... ... 169
Reserve . ... ... .. .. ...... .. .. .. .. .. 10
Tank capacity ............... .... .. 225
Unlocking the fuel filler flap by hand . . 170
Fuel gauge .. ............. .... .. .... 10
F uses
Assignment ................ .... .. 221
Replacing . ................. ... ... 221
G
Garage door opener (Homelink®) ... .. .. 90
Gearshift lever . . . . . . . . . . . . . . . . . . . . . . 77
Gearshift lever (S tronic) Positions . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Generator Warning/indicator lights ............. 14
Glossary of tire and loading terminology 190
Glove compartment ........ .. .. .. .. .. 61
Gross Vehicle Weight Rating (GVWR) .. . 223
H
Headlight
Defective
Headlights .
. .... ......... .... .. .. .. 18
46
Head restraints . . . . . . . . . . . . . . . . . . 59, 96
Adjusting .. .. .............. ... .... 96
H eated
Exterior mirrors .......... .. .. .. .. .. 50
Rear window defogger . . . . . . . . . . . . . . . 67
Seats . ..... .. .............. ... .... 67
Heated washer jets
Wiper and washer system .. .. .. .. .. .. 51
Heating .... . .... ......... .... .. .. .. 63
High beam . . . . . . . . . . . . . . . . . . . . . . 46, 47
High voltage warn ing label .. .. .. .. .. . 223
Hill hold assist Starting on hills .......... .. .. .. .. .. 71
H omelink ® universal remote control . ... 90
Horn ..... ... ...... ............. ... . 6
How many airbags does my vehicle have? 117
Index 235
How often should I check my tire pres-
sures? ....... .. .... ............... 196
•
How safety belt pretens ioners work .. .. 109 •
Hydroplaning . .. .. ................. 199
I
Ignition ..... ..... .. ................ 68
Immobilizer .. .. .. .. .. ........... .. . 10
Important things to do before driving .. . 93
Improperly worn safety belts ......... . 108
Indicator light Airbag system . . . . . . . . . . . . . . . 121,122
Audi magnetic ride .... ........... .. . 19
Convertible top .. .. ................ 15
PASSENGER AIR BAG OFF .......... . 122
Ind icator lights .. ... ................. 11
Red symbols in the center display . .. .. . 11
Yellow symbols in the center display .. . 12
also refer to Warning/indicator lights . . 11
Infant seats ....... ...... .......... 137
Installing child safety seats Safety belts . . . . . . . . . . . . . . . . . . . . . . 140
Instrument cluster and controls ... .. .. .. 8
Instrument panel illumination ......... 49
Instruments and controls General illustration . . . . . . . . . . . . . . . . . . 6
Interior lights ... .. .. ............... . 49
Luggage compartment . . . . . . . . . . . . . . 50
J
Jump-starting . .. .. .... ........... .. 217
K
Key ........... ... .. ..... ........... 28
Battery replacement . . . . . . . . . . . . . . . . 29
Emergency key ... .... ........... .. . 28
Key replacement . . . . . . . . . . . . . . . . . . . 28
Master key . ..... .. ................ 28
Valet key . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Kick-down . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Knee airbags .. .. .. ................. 126
Description .. .. .. ................. 126
How they work ..... .. .. ...... ..... 127
Important safety instructions ........ 128