2018 AUDI A4 engine

Table of content s
Media ... . ... ... .. .. ..... ... .. .. ...
227
Introduction . . . . . . . . . . . . . . . . . . . . . . . . 227
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Media drives . . . . . . . . . . . . . . . . . . . . . . . . 228
Bluetooth audio player . . . . . . . . . . . . . . . 230
W i- F i aud io player . . . . . . . . . . . . . . . . . . . 231
O nline med ia and Internet radio . . . . . . . . 232
Mu ltimedia connect io ns . . . . . . . . . . . . . . 233
P lay ing media . . . . . . . . . . . . . . . . . . . . . . . 236
Addit io nal sett ings . . . . . . . . . . . . . . . . . . 239
Supporte d media and file formats . . . . . . 242
Troubleshooting . . . . . . . . . . . . . . . . . . . . . 243
Audi smartphone interface ...... 246
Se tup ... .. .... ... . ...... ... .. .. ... 246
Operating . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Troubleshoot ing . . . . . . . . . . . . . . . . . . . . . 24 7
System settings . . . . . . . . . . . . . . . . . . 248
Setting the date and time . . . . . . . . . . . . . 248
MMI sett ings . . . . . . . . . . . . . . . . . . . . . . . 248
Connection manager . . . . . . . . . . . . . . . . . 249
System update . . . . . . . . . . . . . . . . . . . . . . 251
Sound settings . . . . . . . . . . . . . . . . . . . . . . 252
Volume sett ings . . . . . . . . . . . . . . . . . . . . . 252
Restart ing the M MI . . . . . . . . . . . . . . . . . . 253
Sof twa re license i nfo rm at ion 253
Safety first . . . . . . . . . . . . . . . . . . . . . . . 2 54
Driving safety . . . . . . . . . . . . . . . . . . . . 254
B asics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Correct passenger se ating positions . . . . . 255
D river's and front passenger 's footwell . . 2S8
Pedal area . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Storing cargo correctly . . . . . . . . . . . . . . . 259
Reporting Safety Defects . . . . . . . . . . . . . . 261
Safety belts . . . . . . . . . . . . . . . . . . . . . . 263
Gene ral information . . . . . . . . . . . . . . . . . 263
Why use safety belts? . . . . . . . . . . . . . . . . 264
Safety belts . . . . . . . . . . . . . . . . . . . . . . . . 266
Belt tensioners . . . . . . . . . . . . . . . . . . . . . . 269
Airbag system .................... 271
Important information . . . . . . . . . . . . . . . 27 1
Front airbags ....................... 275
M on itor ing the Advan ced Airbag System . 283
Knee airbags . . . . . . . . . . . . . . . . . . . . . . . . 28 7
4
Side a irbags . . . . . . . . . . . . . . . . . . . . . . . . 289
Side curtain airbags . . . . . . . . . . . . . . . . . . 292
Child safety . . . . . . . . . . . . . . . . . . . . . . 295
Important information . . . . . . . . . . . . . . . 295
Child safety seats . . . . . . . . . . . . . . . . . . . . 301
Securing child safety seats . . . . . . . . . . . . 306
LATCH system (lower anchorages and
tethers for c hildren) . . . . . . . . . . . . . . . . . 309
Additional informat ion . . . . . . . . . . . . . . . 314
Maintenan ce and Care ........... 31S
Checking and Filling . . . . . . . . . . . . . 31S
Gasoline ........................... 315
D iesel fue l . . . . . . . . . . . . . . . . . . . . . . . . . 316
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 31 7
Se lective cata lytic red uction (AdBlue/
DE F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 19
Emissions control systems . . . . . . . . . . . . 322
Engine compartment . . . . . . . . . . . . . . . . . 323
Engine o il . . . . . . . . . . . . . . . . . . . . . . . . . . 325
Cooling system . . . . . . . . . . . . . . . . . . . . . . 329
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . 330
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Windshie ld washer system . . . . . . . . . . . . 332
Se rvice interva l display 333
Wheels ........ ................ ... 334
Whee ls and Tires . . . . . . . . . . . . . . . . . . . . 334
T ire p ressure mo nitoring system 351
Care and cleaning . . . . . . . . . . . . . . . . 354
Genera l information . . . . . . . . . . . . . . . . . 354
Car w ash es . . . . . . . . . . . . . . . . . . . . . . . . . 35 4
Cleaning an d care information . . . . . . . . . 355
Placing your vehicle out of service . . . . . . 3 59
Do It Yourself ... .. .. ........... .. 3 60
Emergency as sistance . . . . . . . . . . . 360
Genera l information . . . . . . . . . . . . . . . . . 360
Eq uipment . . . . . . . . . . . . . . . . . . . . . . . . . 360
Tire mobility kit . . . . . . . . . . . . . . . . . . . . . 361
Replacing a whee l . . . . . . . . . . . . . . . . . . . 363
Space-sav ing spare t ire . . . . . . . . . . . . . . . 367
Collaps ible spa re ti re . . . . . . . . . . . . . . . . . 367

a co .... N ,....
N .... 0 0
3 co
(!) side assist displays, warning abo ut
exiting the vehicle ..... ... .. .. .
@ Door handle
@ Cent ral locking switch ....... .. .
@ Memory buttons ........... .. .
® Vent
® Thumbwhee l for vent
(J) Lever for:
- T urn signals and h igh beams
- High beam assistant ........ .
- Active lane assist .. ..... ... . .
- Traffic jam assist ....... .. .. .
@ Mul tifunction steer ing wheel with:
- Horn
- Driver's airbag . ..... ... .. .. .
- Drive r information system con -
t rols .. .. ............. .. .. .
- Audio/v ideo, telephone, nav iga­
t ion and voice recognition con-
trols . ... .... .. .... ... .. .. .
- ~ button/stee ring wheel heating
- Sh ift paddles .............. .
® Instrument cluster .... ... .. .. .
@
@
@
@
~
@
Reset trip odometer ........ .. .
W indshie ld washer system lever
Emergency flashers .... ... .. .. .
Knee a irbag ........ ..... ... . .
Adjustable steer ing column
Lever for:
- Cruise cont rol system ..... .. .
- Adaptive cruise cont rol .. ... . .
@ Instrument i llum ination ... .. .. .
@ Data link connector for On Board
Diagnostic System (OBD II) .. .. .
@ H ood release . ........... .. .. .
@ Button for switching the head-up
d isplay on/off, adjust ing the
height .. .. ............... .. .
@ Lig ht switch ............... .. .
@ Buttons for :
- All -weather lights
- Rear fog lights ........... .. .
@ Sw itch for luggage compartment
lid .. .. .. .. ............. .. .. .
128
41
67
55
55
125
116
275
13, 16
15, 16
15
94
10
12
60
56
287 82
10 2
108
58
24
324
24
54
54
54
43
Coc kpit o ve rv iew
@ Power exterior m irror adjustment
@ Power windows .............. .
@ Child safety lock . ............ .
@ Infotainment system display . .. .
@ Lockable glove compartment . .. .
@) Drives for CD, DVD, SI M cards .. .
@ Front passenger's airbag ...... .
@ Valet Park ing funct ion ... .. ... .
@ Climate contro l system . ..... .. .
@ Depend ing on equ ipment, buttons
for:
- drive select .. .. ............ .
- Start/Stop system .......... .
- Elect ronic Stabilization Control
(ESC) . .... .. .............. .
- Park ing aid .. .. ............ .
- Hill descent ass ist .. . ..... .. .
- Switching the Infota inment sys-
tem disp lay on/off .......... .
@ Socke t ..... .. .............. .
@ Cup holder . .. ... .... . ..... .. .
@ Infotai nment system on/off
button ....... .. ............ .
@ Center armrest with sto rage com­
partment . Depending on vehicle
equipment, it may have:
- Aud i m usic interface .. ..... . .
@ Sta rt ing t he engine when there is a
malfunction ... .. .... . ..... .. .
@ E lectromechanical parking brake
@) Depend ing o n eq uipment:
- Selector leve r (a utomatic trans -
m iss ion) .. .. .. ............ .
- Gearshift lever (manua l transmis-
sion)
58
48
48
156
69
228
275
51
76
133
85
14 7
136
148
156
68
69
155
234
85
88
91
@ In fotai nment unit . . . . . . . . . . . . . 155
@ I STAR T ENGINE ST OP I button 83
(D Tips
Some the equipment listed he re is only instal­
l e d in certa in models or is available as an op ­
tion.
9

Cockpit overview
Instrument cluster
Instrument cluster overview
The instrument cluster is the central information center for the driver.
Fig. 3 Instrument cl uster overv iew (analog)
F ig . 4 Instrument cluster overv iew (Audi v irtual cockpit )
(D Engine coolant temperature gauge
@ Tachometer ... .............. .
- With
OFF status indicator .. .. .
- With
READY status indicator . .
@ Tab area .... ... ... ....... ... .
@ Central area with
- Driver informat io n system .. .. .
- Indicator lights ........... . .
® Status line (displayed on one or two
lines)
@ Speedometer/convenience display
0 Fuel level
10
11
12
83
83,85
13
17
25
12
@ Speedometer
® Left additional display (divided in
two sections in the expanded view)
There may be additional indicator lights in the
tachometer @, the speedometer @, the status
line ® and, depending on the instrument clus­
ter, above or below the central
area @.
The following pages will primarily show illustra­
tions of the multi-color analog instrument clus ­
ter*. The display and/or position of the element
shown may vary in monochrome instrument clus-
ters or in the Audi virtual cockpit* .
lllJ,,

a co .... N ,....
N .... 0 0
3 co
A WARNING
Do not assume the roads are free of ice based
on the outside temperature display . Be aware
that there may be ice on roads even when the outside temperature is around 41 °F (+5 °C)
and that ice can increase the risk of accidents.
@ Tips
- Depending on vehicle equipment, the in ­
strument illumination (needles and gauges) may turn on when the lights are off and the
ignition is switched on . The illumination for
the gauges reduces automatically and even­
tually turns off as brightness outside in­
creases. This function reminds the driver to
turn the low beams on at the appropriate
time .
- You can select the units used for tempera­
ture, speed and other measurements in the
Infotainment system
c::> page 248.
- If your vehicle is stationary or if you are driv­
ing at very low speeds, the temperature dis­
played may be slightly higher than the ac­
tual temperature outside due to the heat ra­
diating from the engine .
- At temperatures below 41 °F ( +5 °C), a
snowflake symbol appears in front of the
temperature display
c::> A .
Coolant temperature indicator
The coolant temperature
display @c::> page 10,
fig. 3 or c::> page 10, fig. 4 only functions when
the ignition is switched on. To prevent engine
damage, please observe the following notes
about the temperature ranges.
Cold range
If only the LEDs at the bottom of the gauge turn
on, the engine has not reached operating tem­
perature yet . Avoid high engine speeds, full ac­
celeration and heavy engine loads.
Normal range
The engine has reached its operating tempera­
ture once the LEDs up to the center of the gauge
turn on. If
the. indicator light in the instru-
Cockpit overview
ment cluster display turns on, the coolant tem­
perature is too high
c::> page 30.
(D Note
- Auxiliary headlights and other accessories in
front of the cooling-air intake impair the
cooling effect of the coolant. This increases
the risk of the engine overheating during
high outside temperatures and heavy en­
gine load.
- The front spoiler also helps to distribute cooling air correctly while driving. If the
spoiler is damaged, the cooling effect will
be impaired and the risk of the engine over ­
heating will increase . See an authorized
Audi dealer or authorized Audi Service Fa­ cility for assistance .
@ Tips
Diesel engines: due to the high efficiency of
these engines, the engine may not always reach operating temperature in cold outside
temperatures . This is normal and not a cause
for concern.
Engine oil temperature display and boost
indicator
App lies to : vehicles wi th engine o il temperatu re display/boost
indica tor
Appl ies to : vehicles wi th analog ins trumen t cl uster
The engine oil temperature and boost indicator
are only shown in the lap timer display
c::> page 106.
Engine oil temperature indicator
Applies to : vehicles wit h Audi v ir tu al coc kpit
The engine oil temperature is only shown in the
expanded view or in the sport view
c::> page 15.
When engine oil temperatures are low, the dis­play--- °F
(---°C) appears in the instrument clus­
ter.
The engine has reached its operating tempera­
ture when the engine oil temperature is between 176 °F (80 °C) and 248 °F (120 °C) under normal
driving conditions. The engine oil temperature
.,,.
11

Cockpit overv iew
may be higher if there is heavy eng ine load and
high temperatures outside . This is not a cause for
concern as long as
the .¢ page 31 or II
¢ page 31 indicator lights do not turn on.
Boost ind icator
Applies to: vehicles with Audi virtual cockpit
The boost indicator is only displayed in the sport
view
¢ page 15 .
The current eng ine load (meaning the current
boost pressure) is indicated by a bar .
Tachometer
The tachometer displays the engine speed in rev­
olutions per minute
(RPM).
The beginning of the red zone in the tachometer
indicates the maximum perm iss ible engine speed
for all gears once the engine has been broken in
and when it is warmed up to operating tempe ra­
ture. Before reaching this zone, you should sh ift
i n to the next h ighest gear, select the D/S selec­
tor lever position, or remove yo ur foot from the
accelerator pedal.
CD Note
The needle in the tachometer @ ¢ page 10,
fig . 3
o r¢ page 10, fig. 4 may only be in the
red area of the gauge for a short time or there
is a risk of engine damage . The location where
the red zone begins varies depending on the
eng ine.
@ For the sake of the environment
Upshifting early helps you to save fuel and re­
duces operating noise.
Fuel level
The display (J) ¢ page 10, fig. 3 or ¢ page 10,
fig . 4
only functions when the ignition is switch­
ed on . When the display has reached the reserve
mark, a red LED turns on and the
tD in dicator
light tu rns
on ~ page 34. The red LED wi ll blink
when the fuel level is ve ry low.
12
For the tank capacity in your vehicle, refer to the
Technical
Data ¢ page 381.
CD Note
Never drive until the tank is comp letely emp­
ty. The irregu lar supply of fuel that results
from that can cause engine misfires . Uncom­
busted fue l w ill then enter the exhaust sys­
tem. This can cause overheating and damage
to the catalyt ic converter.
Odometer
Fig . 5 In st rum en t cluster : odometer and reset b utto n
Trip odomet er and odometer
The trip odometer shows the distance driven
s ince it was last reset.
It can be used to measure
short distances.
The trip odometer can be reset to zero by press ­
ing
the ~ reset button.
The odometer shows the total distance that the
vehicle has been driven.
Malfunction indicator
If there is a malfunction in the instrument clus­
ter,
DEF will appear in the trip odometer disp lay.
Have the malfu nction corrected as soon as possi­
ble.
(j) Tips
The units of measu rement can be set in the
I nfotainment system
¢ page 248 .

Cockpit overv iew
Head-up display
Applies to: vehicles with head-up display
Fig. 21 Instrument panel: knob for the head-up display
The head-up display projects certa in warnings or
selected information from the ass ist systems* or
nav igation* on the w indshield. The d isplay ap­
pears within the drive r's fie ld of vision .
Switching on /off
• To switch the head-up display on or off, press
the
knob~ ~ fig. 21.
Adjust ing th e height
The height of the display can be adjusted to the
individual driver.
• Make sure you are seated correctly
qpage255.
• Turn the knob~ to adjust the display .
Setting s in th e Infotainm ent sy ste m
• Se lect in the Infotainment system: I MENU I but­
ton
> Vehi cle > left contro l button > Dri ver as­
s ist ance
> H ea d-up di spl ay .
D is play content
In the Infotainment system, you can specify
which information should be displayed: For ex­
ample, this can include navigation information*,
adaptive cruise control* or camera-based traffic
sign recognition *.
The display of certa in information and some of
the red indicator lights cannot be hidden in the
Infotainment system.
Brightness
You can adjust the display brightness in the Info­
tainment system. The d isplay brightness decreas -
24
es automatically as the amount of light decreas ­
es . The background brightness is adjusted with
the instrument
illumination ~ page 58.
Picture rotation
You can rotate the picture in the Infotainment
system clockwise or counter clockwise.
(D Note
To p revent sc ratches on the glass covering the
head-up display, do no t place any objec ts in
the pro jection opening .
@ Tips
-Sunglasses with po larization filte rs and un­
favorable light ing cond itions can have a
negative effect on the disp lay .
- An optimum disp lay depends on the seat
posit ion and the height ad justment of the
head -up disp lay.
- A spec ial windshie ld is needed for the head ­
up display funct ion .
- For information on clean ing,
see~ table In­
terior cleaning on page 356.
On-Board Diagnostic
System (OBD)
Malfunction indicator lamp (MIL)
The ma lf u nction indicator lamp (MIL) ¢;# in the
i nstrumen t cluster is part of the On-Board Diag­
nostic System (OBD II).
The indicator light turns on when the ignition is
switched on and turns off once the engine is
star ted and is r unning in idle at a stable speed.
This indicates that the MI L is fu nctioning correct­
l y .
If th e light do es n ot turn off aft er start ing the
e ngin e
or turns on while driving, this may indi­
cate there is a malfunction in the engine .
If the
i ndicator turns on, the cata lytic converter may be
damaged.
Drive
with reduc ed eng in e perf orman ce (avoid
high speeds for extended periods of time and/o r
IJJ,-

fast acceleration) and have the malfunction cor­rected. See an authorized Audi dealer or
authorized Audi Service Facility .
The electronic speed limiter may be faulty if the
indicator light turns on. For additional informa­
tion, see
¢ page 102, Electronic speed limiter .
The MIL indicator light may also turn on if the
fuel filler cap is not closed correctly
¢page 317.
On-Board Diagnostics
Fig. 22 Location of Data Li nk Con nec tor (DLC )
On-Board Diagnostics monitors the components
of your em ission control system. Each monitored
component in your eng ine system has been as­
signed a code. In case of a ma lfunction, the com­
ponent will be identified and the fault stored as a
code in the control module memory.
The MI L light may also illuminate if there is a
leak in the on -board fuel vapor recovery system.
If the light illuminates after a refueling, stop the
vehicle and make sure the fuel filler cap is prop­ erly closed (only vehicles with gasoline engine)
¢ page 317 .
In order to make an accurate diagnosis, the stor­
ed data can only be displayed using special diag­ nostic equipment (generic scan tool for OBD) .
In order to connect the specia l diagnostic equip­
ment, push the plug into the Data Link Connector
(DLC). The DLC is located to the right of the hood
release¢ fig. 22.
a Your authorized Audi dealer or qualif ied work-al
;:::: shop can interpret the code and perform the nee-
" ~ essary repair . 0 0
~ al
Cockpit overview
A WARNING
--
Do not use the diagnostic connector for per­
sonal use. Incorrect usage can cause malfunc­
tions, which can increase the risk of a colli­
sion!
Indicator lights
Description
The indicator lights in the instrument cluster
blink or turn on. They indicate functions or mal­
functions.
Messages may appear with some indicator lights.
A warn ing s ignal will sound at the same time.
The indicator lights and messages in the instru­
ment cluster display can be covered by other dis­
plays. To show them again, select the second tab
with the mult ifunct ion steer ing
wheel ¢ page 13.
If there are several malfunctions, you can display
them one at a time using the thumbwheel.
Some indicator lights in the display can display in
several co lors.
it Central indicator light
If the. or d indicator light turns on, check
the message in the instr ument cluster.
Overview
Some indicator lights turn on briefly as a function
check when you sw itch the ignition on. These sys ­
tems are marked with
a./ in the fo llowing tab les.
If one of these indicator lights does not turn on,
there is a malfunction in that system.
Your vehicle has either a monochrome display or
a multicolored display, depending on vehicle
equipment. Some indicator lights appear white
on a monochrome display .
The. or Q central
indicator light turns on at the same time to indi-
cate the priority of these indicator lights.
..,.
25

Cockpit over view
Red indicator ligh ts
26
--------------
Central indicator light
¢page 25,
Aud i pre sense*
¢ page 120
USA model s:
Brake system ./
¢page28
Cana da m od els:
Brake system ./
¢ page28
USA models :
Electromechan ical parking brake
¢ page29
Canada models:
Electromechan ica l parking brake
¢page29
Cooling system
¢ page30
Engine oil pressure
¢ page 31
E ngine oil level
¢ page 31
Alter nator
¢ page30
Safety belt
¢page30
Electromechan ica l steering ./
¢page 150
Steering lock
¢ page 31
Engine start system
¢ page 31
Transmiss ion (automatic t ransm is ­
sion)
¢ page 96,
Clutch (manual transmission)
¢page32
Hood
¢ page32
Adapt ive cr uise control*./
¢ page 110
Traffic jam assist*
¢ page 116 Ad B
lue*
¢ page 319
Ad Bl ue*
¢ pag e 319
Yellow indi cator lights
--------------
Central indicator light
¢ page25
Electronic Stabi lization Control
( E SC)
¢ page32
Elec tronic Stab il izat io n Contro l
(ESC)
./
¢ page32
Electronic Stab ilizat ion Control
(ESC)
¢ page 147
Brake system
¢ page 33
USA models:
Ant i- lock braking system (ABS)./
¢ page32
Canad a model s:
Ant i-lock b raking system (ABS) ./
¢ page32
Safety systems ./
¢page32
USA mode ls:
Brake pads
¢ page33
Ca nad a model s:
Brake pads
¢ page 33
E lec tromechanical parking brake
¢ page29
Tire p ressure
¢ page352
Tire pressure
¢page 352
Engine contro l
¢page 33
Engine contro l (diesel engine)
¢ page 33