engine AUDI A4 2018 Service Manual

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(D Note
Also read the informat ion in c::> (D in General
information on page 130 .
@ Tips
-You can can ce l the au toma tic b rake activa ­
tion w ith increasing braki ng fo rce if you ap ­
p ly the brakes yourse lf or accelerate cons id­
erab ly.
-In some situations, rea r cross-traffic assist
may warn yo u even if there is no cross t raffic
i n a cr itical area, for examp le when back ing
i nto a parki ng space or maneuver ing.
-The rea r cross-traffic ass ist also switches of f
when you switch off the ESC.
-The rea r cross traffic assist switc hes on and
off thro ugh t he pa rking aid
c::>page 136.
-The system is not available when towin g a
trailer.
Messages
App lies to: ve hicles with Audi side assist
A message appears in the instrument cluster dis­
p lay if the s ide assist switches off automatically .
@t Audi side assist: malfunction! Please contact
Service
@t Audi side assist and exit warning : malfunc­
tion! Please contact Service
The system c annot guarantee th at it will detec t
ve hicl es co rrectly and i t has switched off. The
sensors have been moved o r are faul ty. Have the
system checked by an a uth orized Audi dea ler or
author ized Audi Service Facility soon.
@t Audi side a ssist: currently unavailable. Sen­
sor vision restricted due to surround ings . See
owner 's manual
at Audi side a ssis t and exit warning : currently
unavailable. Sensor vision restricted due to sur­ roundings
The rada r se nso r vis io n is impaire d. T he ar ea in
fr on t of the senso rs must no t be covered by b ike
ra ck s, st ick ers, leaves, snow or any othe r o bj ects.
C lea n the area i n front of the senso rs, if necessa ­
ry
c::> page 129, fig . 130 .
Assistance systems
@t Audi side assist : currently unavailable. See
owne r's manual
at Audi side assist and exit warning: currently
unavailable. See owner's manual
S id e assist ca nnot be sw itched on at this time be­
c a u se the re is a ma lfun ction ( for ex ample, the
ba ttery ch arge leve l may be too low).
@t Audi side assist: unavailable in towing mode
(it Audi side assist and exit warning: currently
unavailable. Towing mode
Sid e assist switches off automatically when the
electrica l connecto r in the factory-installed t rail­
er hitch is connected. There is no guarantee the
system will sw itch off when using a retrofitted
t railer h itch . Do not use side assist and the ex it
warning w hen tow ing a traile r.
111 Rear parking aid: obstacle detection restrict­
ed
T he rear cross-traffic ass ist is not available. E i­
t h er the ESC is sw itched off, or the rada r senso rs
may be cove red by a bike rack, sticke rs, leaves,
snow or other objects. Switc h the ESC on , or
clean the area in front of the senso rs if necessary
c::> pag e 129, fig . 130 . If thi s m essage continues
to be displayed, dr ive immedia tely to an author­
i z ed Audi de aler or author ized Audi Se rvice Facili­
ty to ha ve the mal fu ncti on re paire d.
Audi drive select
Introduction
Applies to : vehicles with Aud i drive se lect
Drive select makes it possib le to exper ience dif­
ferent types of ve hicle sett ings in one ve hicle .
T he driver can select
Offroad *, Comfort , Auto
and Dynamic mod es in the Info tainm ent system
t o swi tch b etwee n a sp orty and a comfo rtable
dr iv ing mo de, fo r ex ample . In t he
Individual
mode, the settings can be a djusted to you r per­
sona l p references . This makes it possible to com­
bine settings such as a sporty engine setting with
li ght steer ing.
133

Assistance systems
Description
Applies to: vehicl es w ith Aud i drive select
The follow ing systems, among other things, are
influenced by drive select:
Engine and automatic transmission*
Depending on the mode, the engine and auto­
mat ic transmission* respond more quickly or in a
mo re balanced manner to accelerator pedal
movements . In the sporty
Dynamic mode , the
transmission shifts at highe r speed ranges.
Suspension control*
The suspension control* uses sensors to record
information regard ing steering movements ,
braking and acceleration operations by the driv­
er , road surface, driving speed, and load. This
makes it possible to adapt damping to the driv­
ing situation nearly in rea l time. With drive se ­
lect, you can adjust the suspension control to
sporty
( Dynamic ), comfortab le ( Comfort ) or bal­
anced
( Auto ).
Steering
The power steering adapts. Indi rect s teer ing that
moves easily as in
Comfort mode is especia lly
suited to long drives on highways . The
Dynamic
mode provides sporty , direct steering.
The following applies to vehicles with dynamic
steering* : the steering ratio changes based on
vehicle speed in order to maintain optimum
steer ing effort for the driver at all times . This
sets the steering to be less sensitive at higher
speeds in order to prov ide improved vehicle con­
trol. At reduced speeds, steering is more direct in
order to keep the steering effort as min imal as
possible when the driver is maneuvering the vehi­
cle. At low and average speeds, dynamic steer­
ing* additionally provides more responsive steer­
ing performance.
Sport differential*
As a component of the all wheel drive system
(quattro)
~ page 1 SO, the sport differential dis­
tributes the driving power to the rear axle de­
pending on the situation. The distribution of
power varies depending on the selected mode
134
from moderate (Comfort ) to sporty (Dynamic ).
The goal is a high level of agility and ability to ac­
ce lerate on curves . The vehicle is very respons ive
to steering.
Adaptive cruise control (ACC)*
The behavior when accelerating can be adjusted
from comfortable to sporty, depending on the
drive select mode. Adaptive cruise control also
responds to the driving behavior of the vehicle
ahead in a more conservative or sporty manner.
Engine sound*
The engine sound adapts to the current mode
and can be subtle to sporty.
@ Tips
The S selector lever position automatically en­
gages when the
Dynamic mode is selected .
Selecting the driving mode
Applies to: vehicles with Audi drive se lect
Fig. 135 Center co nsole: controls for drive se lect
.,. Press the left or right a rrow key ~ fig. 135 until
the desired mode appears in the instrument
cluster/ Infotainment system disp lay. Or
.,. Select in the Infotainment system: IMENU j but-
ton
> Vehicle > Audi drive select.
.,. Select and confirm the desired setting.
You can change the driving mode when the vehi­
cle is stationary or while driving. If traffic per­
mits, after changing modes, briefly take your
foot off the accelerator pedal so that the recently
selected mode is also activated for the engine.
.,.

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Offroad* -act ivates offroad funct ions to support
driving on rough terrain. The engine, transmis­
sion and steer ing adjust and the Start/Stop
system* switches
off.
Comfort -provides a com fort -oriented ve hicle
setup and is suited for long drives on highways.
Auto -provides an ove rall comfor table yet dy­
n a mic driv ing feel and is sui ted fo r every day use.
Adjusting the Individual mode
Applies to: vehicles with Audi drive select
Assistance systems
Dynamic -gives the driver a sporty driving fee l
and is suited to a s porty driving style.
Individual -c::> page 135.
.8_ WARNING
Pay att ention to tra ffic w hen ope rating the
dr ive select to reduce the r is k of an acci dent .
You can adjust the vehicle settings to your personal preferences .
.,. Select in the Info tainment sys tem: !M ENUI but­
ton
> Vehicle > Audi drive select > Individual >
rig ht cont ro l button.
Afte r you have closed the sett ings, you will a uto­
mat ica lly dr ive in the
Individual mode .
Systems comfort
Engine /transmission
ba lanced
Steering comfortab le T
he equ ipment in you r vehicle will determ ine
which se tt ings you can adjust. The fo llow ing ta­
ble g ives an overv iew of t he cha ra ct eris tics.
auto dynamic
balanced sporty
ba lance d sporty
Dynamic steering " comfortable/ind irec t balanced/ direct sporty/direct
Suspension control * comfortable
Sport differential * moderate
Engine sound * subtle
ACC* comfortab le
a) Subtle in th e selector lever pos it ion D an d sporty in S.
@ Tips
Yo ur se ttin gs a re automa tically saved in Indi­
vidual
m ode . ba
lance d sporty
ba la nced sporty
subtle/sporty al sporty
ba lanced sporty
135

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prevent collisions -the re is still a risk of ac­
c idents!
- Press the accelerator pedal ca refully when
accelerating on smooth, slippery surfaces
such as ice and snow. The dr ive wheels can
spin even when these control systems are
installed and th is can affect driving stability
and increase the r isk of a coll is ion.
Switching on/off
Intellig ent Technology
{!) Tips
- The ABS and ASR only funct ion correct ly
when all four wheels have a sim ilar wear
condition. Different tire sizes can lead to a
reduction in engine power.
- You may hear noises when the systems de­
scribed are working.
£SC turns on automatically when you start the engine.
Fig. 1 55 Cente r co nso le w it h b utton~ °"
The following sit uat ions are exceptions where it
may be useful to switch on sport mode (sedan) or
offroad mode (allroad) to allow the whee ls to
spin :
- Rocking the vehicle to free it when it is stuck
- Dr iving in deep snow or on loose ground
- Dr iving with snow chains
- App lies to: allroad: Driv ing on ro ugh te rra in
when much of the car's weig ht i s l ifte d off the
wheels ( axle articul at ion)
The ESC is designed to fu nction in levels. Depe nd­
i ng o n the level that is selected , the s tabilization
f u nction o f the ESC is limited or switched off. The
amo unt of stabilization control will d iffer de ­
pending on t he leve l. -
App lies to: allroad: Driv ing down hill while brak­
ing on loose grou nd
Fo r yo ur safety, switch the spo rt mode/offroad
mode off in advance.
ESC levels
Applies to: sedan
Sport mode on ESC/ASR off Sport mode off or
ESC /ASRon
Behavior
The ESC and ASR stab ili za- The stabilization f unct io n is The f ull stabiliza tion f un c-
t ion f un ct ions are lim ited not avai
lab le
¢ &. . ES C and
tion of the ESC and ASR is
¢ &. . ASR are swi tched off . avai
lab le aga in.
Op eration Press the !.r, O FFI button P ress and hold the j.r, O FFI Press the j.r, O FFI button
briefly . button longer than 3 sec- aga in .
o nds.
Ind icato r II turns on. fl and jf'll•)~~ turn on. II turns off or II and
lights lf'll•U~ turn off.
Me ssages Stabilization contro
l (ESC ):
Stabilization control (ESC ): Stabilization control
s port . Warning! Restricted off. Warning! Restricted (ESC
): on
stability stability
147

Intelligent Technology
& WARNING
- Only apply the brakes for the purpose of
cleaning the brake system whe n road and
t raffic conditions perm it . You must not en­
dange r othe r road users . This increases the
risk of an accide nt.
- Never let the vehicle roll while the e ng ine is
stopped because this increases the risk of a n
a cci den t.
([) Note
- Neve r let the brakes " rub" by pressing the
pedal lightly when braki ng is not actually
necessa ry . T his ca uses the bra kes to over­
h ea t an d inc reases br akin g d istance an d
c a uses wear .
- B efo re driv ing downhill a long distance on a
steep hi ll, decre ase your spee d an d se lec t a
l ower gear . This makes use of t he engine
b raking effe ct and re lieves the brakes . If
you nee d to b rake additionally, b rake in in­
tervals and not continuously .
(D Tips
- If the brake booste r is no t working, yo u
must press the brake pedal with much more
fo rce than normal.
- If you retrofit you r vehicle with a front spoil­
er, whee l covers o r similar items, ma ke sure
that the a ir flow to the front whee ls is not
i nte rr u pted. Othe rw ise the brake system
ca n become too hot.
Electromechanical
steering, Dynamic
steering
T h e electromechanical st eering supports the
driver's steering movements.
Power steering adapts electronically based on
the vehicle speed.
Indicator lights and messages
• St ee ring : malfunction! Plea se stop vehicle
150
If this indicato r light turns on and stays on and
this message appears, the power steering may
have failed.
Stop t he vehi cle in a sa fe location as soon as pos­
s ible . Do
not contin ue driving . See an authorized
Audi dealer or authorized A udi Service Facility for
ass istance .
'I- ij Steering: malfun ction! You may continue
driving
I f the indicato r light turns on and the message
a ppears, the steeri ng wheel may be more d iffi­
cu lt to move o r more sensitive than usu al. The
stee ring wheel may also be at a n ang le when
driving straight.
D rive slowly to an auth o rized Audi dea ler or au ­
thorized Aud i Serv ice Facili ty to have t he mal ­
f unct io n corre cted .
t$Jj Dynamic steering: correcting steering wheel
position
If the indicator light turns on and this message
appears , the dynamic steering * is re in it ia liz ing .
The s teer ing whee l will be easy to move afte r
st ar ting t he engine . Reinitializa tio n might be
ne cessary if the stee ring w heel was moved while
t h e engine was switched off. The disp lay t urns
off if the initialization was successfu l.
(D Tips
- If the . or krfl i ndi cato r ligh t only s tays on
f or a sho rt time, you may cont inue driving .
- Th e dynamic stee ring s tabili ty sys tem s
¢ page 14 6 are not av ailabl e in the event of
a system malfunction .
- For add ition al informa tion o n dynamic
s teering, see
¢ page 133.
ALL-wheel drive (quattro)
App lies to: vehicles wi th all wheel drive
General information
In all whee l dr ive, the dr iv ing power is dis trib ut-
ed between all fo ur whee ls when needed. This
happens automatically depending on your driving
behavior as we ll as the c urrent road conditions.
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Also see¢ page 146, Electronic stabilization
control (ESC) .
The all-wheel drive system dist ributes the d riving
power var iably to the front and rear axle. It works
together with selective whee l torque cont rol,
which activates when driving through curves
c:> page 146. With the sport differentia l*, power
d istribution to the rear wheels is variable and can
be adjusted using the dr ive select
c:> page 134.
The all wheel drive concept is designed for high
engine power. Your ve hicle is exceptionally pow­
erful and has excellent driving characterist ics
both under norma l dr iving condit ions and on
snow and ice . Always read and fo llow safety pre ­
cautions
c:> .&. .
Winter t ires
By us ing all wheel drive, yo ur vehicle has good
forward motion with standard tires in w inte r con­
d itions. However, using winter or all season tires
on
all four wheels in the winter is recommended ,
because this will improve the
braking effec t.
Snow chains
If there are snow chain laws, snow chains must
also be used on vehicles with all wheel drive
c:> page 350, Snow chains .
Replacing tire s
For vehicles with all whee l drive, only whee ls with
the same ro lling circumference s hou ld be used.
Avoid using tires w ith different tread depths
c:> page 341, New tires or wheels.
Offroad vehicle?
The ground clearance is too low on some mode ls
to drive on rough terrain. Therefore, avoid off­ road trips.
A WARNING
-Also, in vehicles with a ll w heel d rive, adapt
your dr iv ing style to the current road and
t raff ic conditions . Do not let the increased
safety provided tempt you into tak ing risks,
because t his increases the r is k of an acci­
dent .
Intellig ent Technology
- The braking ab ility o f your vehicle is limited
to the traction of the wheels. In this way, it
is not different from a two wheel drive vehi­
cle . Do not be tempted to accelerate to a
h igh speed whe n the road is sli ppery, be­
cause this i ncreases the risk of an accident.
- No te that o n wet streets, the fron t wheels
can "hydrop la ne" if dr iv ing at speeds that
are too high. Unlik e front wheel d rive
veh icles, the engine does not rev h ig her sud­
denly when the vehicle begins hydrop laning.
F orthisre ason,ad aptyo urspeedto the
road conditions to re duce the risk of an acci­
dent .
Energy management
The starting ability is optimized
The energy management system manages the
electrical energy distribution and optimizes the
availability of electrical energy for starting the
engine .
When a vehicle with a conventional energy sys­
tem is not drive n for a long time, the ve hicle bat­
te ry is d rained by equipment (for example, t he
immob ilizer). In certa in circ ums tances , there
c ou ld m ay no t be eno ugh e nergy to start the en­
gine.
You r vehicle is equi pped with an in tell igent ener­
gy manageme nt system fo r dist ributing electrici­
ty. This sig nifican tly improves the start ing ability
and in cre ase s t he vehicle battery life.
The ene rgy ma nagement system Is made up of
battery diagnosi s, idling current management ,
and dynamic energy management .
Battery diagnosis
The battery diagnos is determines the vehicle bat­
te ry c harge level. The sensors determine the bat ­
te ry vo ltage, the batte ry cu rrent, and the batte ry
temperat ure. The current c ha rge level and t he
perfo rman ce of the vehicle battery a re de ter-
mine d base d on this.
..,.
151

Intelligent Technology
Idling current management
The idling c urrent management dec reases the
energy used w hile pa rked. With the engine
sw itched off, it manages the energy distribution
to the different elect rical components . Data from
the battery diagnosis is taken into account for
this .
Depending on the vehicle battery charge level,
e lectrical equipment is switched off one item af­
ter the other to prevent the vehicle battery from
draining and to maintain the starting ability.
Dynamic energy manag em ent
W hil e driving, dynamic energy management dis ­
tr ibutes the appropriate amount of energy to the
electrical equipment. It controls the battery
charge level so that the amount of energy is not
greater than the amount being generated in or­
der to mai nta in a n optimal vehicle battery charge
level.
(D Tips
- Energy management cannot overcome the
l aws of phys ics . Note that the charge leve l
and leng th of the vehicle battery life a re
li mi ted .
- When the starting ability is endanger ed, the
(•) ind icator light turns on~ page 30.
What you should know
Maintaining the starting ability is the highest
priority.
A lot of stress is placed on the vehicle battery
when dr iv ing short d istances, dur ing c ity dr iv ing,
and at cold times of the year . A lot of energy is
used but little is gene rated . It is a lso cri tical
wh en the engine is not runn ing but e lectr ica l
e qui pment is swi tc h ed o n. In this case, energy is
u sed bu t none is ge nera te d.
In s ituatio ns l ike this, energy management will
actively regu late the d ist ribu tion of ene rgy.
Long pe riods without use
If you do not drive your vehicle for several days or
weeks, electrica l equipment is gradually scaled
back or swi tched off . This reduces energy use and
152 ensures
the vehicle will be ab le to s tart a fter long
periods of time. Some conven ience f unctions,
such as interior lig hting or power seat ad just ­
ment, may not be avai lab le under ce rtain circum­
stances. These conven ience functions will be
available again once you switch the ignit ion on
and sta rt the eng ine.
With the engine switched off
The vehicle battery will drain if you use Infotain ­
ment functions such as listening to the radio
whi le the engine is switched off.
If the vehicle's ability to start may be impaired by
the energy use, a message will appear i n the In­
fota inment system display. The message indi­
cates that the system will switc h off automatical­
l y soon. If yo u wou ld like to continue using the
funct io ns, you must s tart the engine .
With the engine running
Although electr ica l energy is generated w hile
driv ing, the veh icle battery can d ra in. This can
happe n if litt le ene rgy is generated but much is
used, and the charge level of the vehicle battery
is not optimal.
To resto re t he ba lance of energy, components
that require large amounts of energy are tempo­ rarily scaled back or sw itched off. Heat ing sys ­
te ms in pa rticula r r equir e a great deal of e nergy .
I f you notice, fo r example, t hat the seat heati ng*
o r r ear window defogger is not wor king, then it
h as been tempor arily reduce d or switched off.
These sys tems are avai lab le aga in as soon as t he
energy supp ly has been restored.
I n add it ion, yo u may notice tha t the idle speed
h as slig htly incre ase d. Tha t is normal and no
ca use for concer n. By in creasing the idling spee d,
the addit io na l required energy will be gene rated
and t he vehicle battery w ill be charged.

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Notice about data
recorded by the Event
Data Recorder and
vehicle control modules
Event Data Recorder
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 situa­
tions, such as an airbag deployment or hitting a
road obstacle, data that will assist in understand­
ing how a vehicle's systems performed. The EDR
is designed to record data related to vehicle dy­
namics and safety systems for a short period of
time, typically 30 seconds or less . The EDR in this
veh icle is designed to record such data as :
- How various systems in your vehicle were oper­
at ing;
- Whether or not the driver and passenger safety
belts were buckled/fastened;
- How far (if at all) the driver was depressing the
accelerator and/or brake pedal; and,
- How fast the vehicle was traveling.
These data can he lp prov ide a better understand­
ing of the circumstances in which crashes and in­
juries occur. NOTE: EDR data are recorded by your
vehicle only if a non-trivial 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. Howeve r, other parties, such as law en­
forcement, could combine the EDR data with the
type of personally identifying data routinely ac­
quired during a crash investigation.
To read data recorded by an EDR, specia l equip­
ment is required, and access to the vehicle or the
EDR is needed. In addition to the vehicle manu­
facturer, other parties, such as law enforcement,
that have the specia l equipment, can read the in­
formation if they have access to the vehicle or the
EDR.
Some state laws restrict the retrieval or down­
l oading of data stored by ED Rs 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.
Intelligent Technology
Audi will not access the EDR and/or simi la r data
or give it to others -
- unless the vehicl e owner (or lessee if the vehi­
cle has been leased) agrees; or
- upon the official request by the police; or
- upon the order of a court of law or a govern-
ment agency; or
- for the defense of a lawsuit through the jud ic ial
discovery process.
- Aud i may also use the data for research about
veh icle operation and safety performance or
prov ide the data to a th ird party for research
purposes without ide ntify ing the specific vehi­
cle or information about the identity of its own­
er or lessee and only after the reco rded vehicle
data has been accessed.
Vehicle control modules
Your vehicle is also equipped 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.
T hese elect ronic contro l modu les record data
dur ing normal vehicle operation that may be
needed by trained technicians for diagnostic and
repair purposes. The recording capab ility of these
modules is limited to data (no sound is record­
ed). Only a small amount of data is actually re­
corded over a very limited period of time, or stor­
ed when a system fault is detected by a control
module . Some of the data stored may relate 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
down loaded w it h special equipment that is di­
rectly connected to the vehicle .
(D Tips
Your vehicle may be equipped w ith Aud i con­
nect. Your use of certain Audi connect fea­
tures requires wire less services that are pro­
vided by a third party wireless telecommuni ­
cations provider . For details regarding how in­
formation obtained through Audi connect is
collected, processed, transmitted, used, and
shared, please see your contract with the
wireless telecommunications provider and the
IJJJ,-
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Telephone Introduction
A pp lies to: ve hicles with telep hone
To make phone coils in your vehicle using the
MMI, connect your cell phone to the
MMI via
Bluetooth.
H and sfree
Afte r you have connected your cell phone to the
MMI via Bluetooth, you can use the handsfree
system and operate telephone functions through
your MMI. You can make calls using the antenna
on your cell phone.
A WARNING
- Medical experts warn that cell phones can
interfere w ith the function of pacemakers.
Always ma inta in a m inimum distance of 20
centimeters between the cell phone anten­
na and the pacemaker.
- Do not carry the cell phone in a pocket di­
rectly over the pacemaker when the phone
is switched on.
- Sw itch the cell phone off immediately if
you suspect it may be interfering with the pacemaker.
- Do not use the voice recognition system*
c::> page 168 in emergencies because your
voice may change in stressful situations. It may take longer to dial the number or the
system may not be able to dia l it at all. Dial
the emergency n umber manua lly.
- Switch your cell phone off in areas where
there is a risk of an exp losion. These loca­
tions are not always clea rly marked. This
may include gas stations, fuel and chemical
storage facilities or transport vehicles, or lo ­
cations where fuel vapors (such as propane
or gasoline vapor in vehicles or bu ildings),
chem icals or large quantities of dust parti­
cles (such as flour, sawdust or metal) may
be present in the air. Th is also applies to all
other locations where you would normally
tu rn your vehicle engine off.
- The demands of traffic requ ire your full at­
tent io n. Always read t he chapter
c::> page 155, Traffic safety information.
-
T e le ph on e
(D Note
Always fo llow the information found in Q (!) in
Wi-Fi hotspot on page 194.
(D Tips
- The Bluetooth connect ion range is limited
to inside the vehicle. It can also be affected
by local condit ions and interference with
other devices.
- To learn which Bluetooth connections and
wh ich of the functions in your cell phone are
supported, check with your cell phone serv­
ice provider or the database for mobile devi­
ces at
www .audiu sa.com /bl uetooth .
Setup
Connecting a cell phone using Bluetooth
Applies to: vehicles wi th telepho ne
Fig . 17 6 Display ing t he PIN for enter ing in t he cell ph one
R equirem ent
The vehicle must be stationary and the ignition
must be switched on.
T he Bl uetoo th funct ion and v isib ility o f the MMI
¢ page 250 and cell phone must be sw itched on.
T he cell phone to be connected must not be con­
nected to any other Bluetooth device.
T he
MMI must not be connected to a cell phone .
Connecting a cell phone
.,. Select: !MENUI button> T elephone > Co nnect
mobile dev ice
> Find new de vices > Ne xt. The
avai lable Bluetooth devices are shown in the In­
fotainment system display .
Or select: !MENUI
button > S etting s> left contro l button > MMI
s etting s
> Connec tion manag er ¢ page 249 . .,..
175

a co .... N ,....
N .... 0 0
3 co
Checking and Filling
Gasoline
Fuel supply
Applies to: veh icles with gaso line engine
Using the right fuel helps keep the environment
clean and prevents engine damage .
Fuel recommendation
The fuel recommended for your vehicle is unlead­
ed premium
grade gasoline. Audi recommends
using TOP TIER Detergent Gasoline with a mini­
mum octane rating of 91 AKI (95 RON). For more
information on TOP TIER Detergent Gasoline,
p lease go to the official website
(www.toptiergas .com) .
The recommended gasoline octane rating for
your engine can also be found on a label located
on the inside of the fuel filler flap . This rating
may be specified as AKI or RON.
Your vehicle may also be operated using unlead­
ed regular gasoline with a min imum octane rat ­
ing of 87 AKl/91 RON. However, using 87 AKl/91
RON octane fuel will slightly reduce engine pe r­
formance.
Use unleaded gasoline only. Unleaded gasoline
is available throughout the USA , Canada, and in
most European countries . We recommend that
you do not take your vehicle to areas or countries
where un leaded gasol ine may not be available.
For more information on refueling your vehicle,
see
c::> page 317 .
Octane rating
Octane rating indicates a gasoline's ability to re­
sist engine damaging "knock" caused by prema­
ture ignit ion and detonation . Therefore , buy ing
the correct grade of gasoline is very important to
h e lp prevent possible engine damage and a loss
of eng ine performance.
Gasoline most commonly used in the United
States and Canada has the following octane rat­
ings that can usually be found on the filler pump:
- Premium Grade: 91
-96 AKI
Checking and Filling
-Regu lar Grade: 87 -90 AKI
E xplanation of the abb reviations:
AKI =
Anti Knock Index = (R +M)/2 = (RON +MON)/
2
RON = R esearch Octane Number
MON = Motor Octane Number.
(D Note
- Do not use any fuel w ith octane ratings low­
er than 87 AKI or 91 RON otherwise expen­
sive engine damage w ill occur .
- Do
not us e leaded gasoline. The use of lead­
ed gasoline will severe ly damage your vehi­
cle's catalytic converter and its ability to
control exhaust emissions .
Blended gasoline
Applies to: vehicles with gasoline engine
Use of gasoline containing alcohol or MTBE
(methyl tertiary butyl ether)
You may use unleaded gasoline blended with al­
cohol or MTB E (commonly referred to as oxygen ­
ates) if the blended mixture meets the following
criteria:
Blend of gasoline methanol (wood alcohol or
methyl alcohol)
-Anti -knock index must be 87 AKI or higher.
- Blend must contain no more than 3% metha-
nol.
- Blend must contain more than 2% co-solvents.
Blend of gasoline and ethanol (grain alcohol or
ethyl alcohol)
- Anti-knock index must be 87 AKI or higher.
- Blend must not conta in more than 15% etha-
nol.
Blend of gasoline and MTBE
- Anti-knock index must be 87 AK I or higher.
- Blend must contain not more than 15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform es­
pecially well for winter or summer dr iving . Dur-
ing seasonal change-over, we suggest that you
..,.
315