2018 AUDI A4 tow

Table of contents
About this Owner's Manual . .. .. .
Cockpit ... .. ............... .... .. .
Cockpit overview ................ .
Controls at a glance ... .......... .. .. .
Instrument cluster .. .......... .. .. .. .
Multifunction steering wheel plus ... .. .
Multifunction steering wheel ......... .
Driver information system ...... .. .. .. .
H ead-up display .... .. .. ..... ... .. .. .
On-Board Diagnostic System (OBD) .. .. .
I ndicator lights .................... . 6
8
8
8
10
13
16
17
24
24
25
Starting and driving . . . . . . . . . . . . . 37
Opening and closing . . . . . . . . . . . . . 3 7
Central locking . . . . . . . . . . . . . . . . . . . . . . 3 7
L uggage compartment lid . . . . . . . . . . . . .
43
Child safety lock . . . . . . . . . . . . . . . . . . . . . 48
Power windows . . . . . . . . . . . . . . . . . . . . . 48
Sliding/tilting sunroof . . . . . . . . . . . . . . . . 49
Panorama glass roof . . . . . . . . . . . . . . . . . SO
Valet parking function . . . . . . . . . . . . . . . .
51
Garage door opener (Homelink) . . . . . . . . 52
L ights and Vision . . . . . . . . . . . . . . . . . 54
Exterior lighting . . . . . . . . . . . . . . . . . . . . . 54
Interior lighting . . . . . . . . . . . . . . . . . . . . . 57
V1s1on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Windshield wipers . . . . . . . . . . . . . . . . . . .
60
Digital compass . . . . . . . . . . . . . . . . . . . . . 63
Seats and storage . . . . . . . . . . . . . . . . 65
General information . . . . . . . . . . . . . . . . . 65
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 65
H ead restraints . . . . . . . . . . . . . . . . . . . . . 66
Memory function . . . . . . . . . . . . . . . . . . . .
67
Sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Luggage compartment ........ .... .. .
Roof rack .. .. ... ............ .... .. .
Warm and cold ................ .. .
Climate control system .............. .
3 zone deluxe automatic climate control .
Steer ing wheel heating .. ........ .. .. .
2
70
74
76
76
77
79
Driving ... .. .. .. .. .. ... .......... . .
General information . ... ........... . .
Steering .......... .. .. . .......... . .
Start ing and stopping the eng ine ..... . .
Start/Stop system .. .. ............. . .
E le ctromechanical parking brake ...... .
Start ing to drive .. .. .. ........ ..... . .
D rivi ng offroad . .. ... ...... ....... .. .
Automatic transmission
Trailer towing ..... .............. .
Driving with a trailer .. ............. . .
8 0
80
82
83
85
88
89
90
91
99
99
T raile r towing information . . . . . . . . . . . . 100
Driver assistance . . . . . . . . . . . . . . . . . 102
Assistance systems . . . . . . . . . . . . . . 102
Electronic speed limiter. . . . . . . . . . . . . . . 102
Speed warning system . . . . . . . . . . . . . . . . 102
Cruise control system . . . . . . . . . . . . . . . . 102
Camera-based traffic sign recognition . . . 104
Lap timer . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Pred ictive efficiency assist. . . . . . . . . . . . . 107
Audi adaptive cruise contro l . . . . . . . . . . . 108
Pred ictive control (eff ic ie ncy assist) . . . . . 115
Traffic jam assist . . . . . . . . . . . . . . . . . . . . 116
Distance indicat or and distance warnin g 118
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Audi pre sense . . . . . . . . . . . . . . . . . . . . . . 120
Audi pre sense basic . . . . . . . . . . . . . . . . . . 120
Audi pre sense front . . . . . . . . . . . . . . . . . 121
Audi pre sense rea r . . . . . . . . . . . . . . . . . . 122
Audi pre sense city . . . . . . . . . . . . . . . . . . . 123
Settings in the Infotainment system . . . . 124
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Audi active lane assist . . . . . . . . . . . . . . . . 125
Audi s ide assist . . . . . . . . . . . . . . . . . . . . . 128
Audi drive select . . . . . . . . . . . . . . . . . . . . . 133
Parking systems
General information .. ... .......... . .
Rear parking system .. .. ........... . .
Parking aid plus .. .. .. ............. . .
Rearview camera ... .. .. ........... . .
Periphera l cameras ... ... .......... . .
Adjusting th e parking aid . ........... .
136
136
137
137
138
140
143

a co .... N ,....
N .... 0 0
3 co
Fuses and bulbs . . . . . . . . . . . . . . . . . . 369
F uses .. .. .. .. .. .. .. .... ... .. .. .... . 369
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
Emergency situations ... .. .. .... . 374
G ene ral . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
St art ing by pu shing o r tow ing . . . . . . . . . . 374
S tar ting w it h jumpe r cables . . . . . . . . . . . 374
Usingthejumpst artcable . ........ ... 375
Towing w ith a tow tr uck . . . . . . . . . . . . . . 376
Ra is ing the veh icle . . . . . . . . . . . . . . . . . . . 377
Accessories and Technical Data . 37 9
Technical data . . . . . . . . . . . . . . . . . . . . 379
Ve hicl e specifications . . . . . . . . . . . . . . . . 379
N otes about tec hnica l data . . . . . . . . . . . . 379
We igh ts . . . . . . . . . . . . . . . . . . . . . . . . . . . 380
Di mensions . . . . . . . . . . . . . . . . . . . . . . . . . 380
Capac it ies . . . . . . . . . . . . . . . . . . . . . . . . . . 38 1
Gasoline engin es . . . . . . . . . . . . . . . . . . . . 38 1
Diese l eng ines . . . . . . . . . . . . . . . . . . . . . . 382
Consumer Information . . . . . . . . . . 383
War ranty cove rages . . . . . . . . . . . . . . . . . . 383
Oper ating your veh icle outs ide the U .S.A.
o r Can ada . . . . . . . . . . . . . . . . . . . . . . . . . . 383
Aud i Service Repair Ma nuals and
Lit erature . . . . . . . . . . . . . . . . . . . . . . . . . . 383
M ain tenance . . . . . . . . . . . . . . . . . . . . . . . . 383
Accesso ries and te chnical changes . . . . . . 385
D eclarat ion of Compli ance,
T elecommun ications and Electronic
Syst ems . . . . . . . . . . . . . . . . . . . . . . . . . . . 386
Index ..... .. .. ... ..... ... .. .. .... . 387
Table of contents
5

Cockpit over view
The short -term memory collects driving informa­
tion from the time the ignition is switched on un­
til it is switched off . If you cont inue driv ing with­
in two hours after switching the ignition off, the
new values are included when calculat ing the cur­
rent tr ip informat ion.
Unlike the short-term memory, the long-term
memory is not erased automat ically. You can se­
lect the time period for evaluat ing trip informa­
tion yourself .
Fuel con sumpti on
The current fue l consumption can be shown us­
ing a bar graph
cc> fig. 14. The average cons ump­
tion stored in the short-term memory is also dis­
played. If the bars are green or the gray tone on
the bars changes (depending on the equipment),
your veh icle is sav ing fuel by the following func­
tion:
- Recupe ration : electrical energy can be stored in
the ve hicle battery when the vehicle is coasting
o r driving downhi ll. The bar will move toward
0 /0.
(D Tips
The date, time of day and t ime and date for­
mat can be set in the Infotainment system
cc>page248 .
Energy consumers
Fig . 15 Inst rume nt cluste r: e nergy cons ume rs
In the En ergy con sumer s view, the othe r equip­
ment that is currently affecting fuel consumption
is listed in the first tab (on-board comp ute r) . The
d isp lay shows up to three ene rgy consumers @
cc> fig. 15. The eq uipme nt using the most powe r is
listed first. If more than three items using power
18
are switched on, the eq uipment that is c urren tly
using the most power is disp layed .
A ga uge @ also shows the c urrent tota l con­
s u mption of a ll othe r consumers .
. Radio
Applies to: vehicles with multifunction steering wheel
.,. Press the I MODE i button on the m ultif un ction
s teer ing whee l repeatedly u nti l the Radio/ Me­
dia tab is d isp layed.
Applies to: vehicles with multifunction steering wheel plus
.,. Press the I <11>I button repeatedly until the Ra-
dio/Med ia tab is d isplayed.
.,. Press the left control b utton cc> page 14 .
Depending on veh icle equipment, the following
funct ions may be ava ilable i n the dr iver informa­
tion system .
-Select ing the frequen cy band : select and con ­
firm a freq uency band .
-Selecting a station from the station list : select
and confirm a radio station.
- Select ing a station from the preset s list : select
and confirm
Presets and then a radio station .
-Opening a media sou rce: se lect and confirm
Swit ch to media.
Additional settings
- Sele ct: r ight cont rol b utton> desired entry.
Depend ing on the function se lected, the follow­
i ng additional settings may be possible:
- "Now Playing" screen : see cc> page 226.
Media .
Requirement: a media drive must contain audio/
video files
cc> page 228 .
Applies to: vehicles with multifunction steering wheel
.,. Press the I MODE i button on the mu ltifunction
steer ing whee l repeatedly until the Radio/Me-
dia tab is d isplayed .
.,.

a co .... N ,....
N .... 0 0
3 co
charge. Drive to an authorized Audi dealer or au­
thorized Audi Service Facility immediate ly.
Do not stop the eng ine, or you will not be able to
start it aga in. If yo u can no longer sta rt the en­
gine, see an authorized A udi dealer or authorized
Audi Service Facility for assistance .
(•) Elec trical system : malfunction! Plea se c on­
tact Se rvic e
Drive to an authorized Aud i dea le r or authorized
Aud i Service Faci lity immediately . Because the ve­
h icle battery is discharg ing , turn off all unneces ­
sary e lectr ica l equipment s uch as the radio . See
an authorized Audi dealer or authorized A udi
Service Facility if the battery charge level is too
l ow .
(•) Ele ctrical system : low battery charge . B at­
tery w ill be charg ed while driv ing
The start ing ability may be impaired .
If th is message turns off after a little while, the
vehicle battery charged enough wh ile driving .
If the message does not turn off and stay off
when dr iving, have an authori zed Aud i dea ler or
author ized Audi Service Facility repair the mal­
function.
~ Engine oil pressure
• T u rn off engine . O il pr essure too low
Stop the eng ine and do no t continue driving.
Check the engine oil
level ¢ page 32 7.
-If the engine oil level is too low, add engine oil
¢ page 327. Only cont inue driv ing once the in­
dica tor light turns off.
- If the engine oil level is correct and the indica­
tor light sti ll turns on, turn the engine off and
do not continue driving. See an authori zed Audi
dealer or au thor ized Audi Service Facility for as­
s istance.
@ Tips
The oil pressure warning is not an o il level in­
dicator. Always check the oil level regularly.
Coc kpit o ve rv iew
~ Engine oil level (MIN)
• Plea se add oil imm ediatel y.
Add engine oil immediately ¢ page 327 .
Ill Please add ma x. x qt (l) oil. You can contin ·
ue d riv ing
Add the maximum amount o f oi l indicated in the
display as soon as possible
¢ page 32 7 .
@ -Steering lock
• Steering: m alfunction! Ple ase stop vehicle
T he re is a ma lfunction in the e lectronic steering
l ock. You cannot turn the ignition on.
Do
not tow your vehicle because it cannot be
stee red. See an authorized Audi dea ler or author­
ized Audi Se rvice Facili ty for assistance.
Em Ste ering lo ck : malfunct ion! Pl eas e contact
Ser vic e
There is a malfunction in the electron ic steering
lock.
Drive to an au thori zed Audi dealer or authori zed
Audi Service Facility immed iately to have the
malfunction corrected .
_& WARNING ,-
Do not tow your vehicle when there is a mal-
f u nction in the electro nic steer ing lock· t his
i n cr eases the risk of an a cc ident.
~ Engine start system
• Engine s tart sy stem: malfun ction! Ple ase
cont act S erv ice
Do not switch the ignition off because you may
not be able to switch it on again.
Drive to an authorized Audi dealer or authorized
Audi Se rvice Facility immed iately to have the
malfu nction corrected .
= Engine sta rt system: mal function! Ple ase
cont act S erv ice
-
There is a ma lf u nction in the engine starting sys-
tem.
~
31

Cockpit over view
Drive to an autho rized Audi dea ler or a uthorized
Audi Service Facility immediately to have the
malfunct ion corrected.
c::=:,Hood
• Warning! Hood is not locked. Stop vehicle
and check the lo ck
If the indicator light turns on and the m essage
appears, the hood locking mechanism is not en­
gaged correctly.
Stop immediate ly and close the hood
<::> page 324.
0 Clutch
Appl ies to: ve hicles w ith manu al transmiss ion
• C lutch: malfun ction! Safely stop vehicle
There is an ongoing ma lfunction in t he clutch .
Stop the vehicle safely. See an authorized Audi
dea ler or a uthori zed Audi Serv ice Facility for as ­
sistance .
[Pl Clut <:h: malf un<:ti on! Adapt dri ving style .
Please contact Ser vice
There is an ongo ing malfu nction in the clutc h.
The engine torque tha t can be transferred is re­
duced . You may continue d riving . Avoid using the
clutch in any way that will p lace a heavy load on
it . For example, do not let the clutch r ub when
starting on hills, when towing a trailer or when
maneuvering the vehicle. Drive to an authori zed
Aud i dealer or authorized Aud i Serv ice Facility im ­
mediately to have the malfunc tion corrected .
5] Clutch: malfun ction! You ma y continue d riv­
ing
There is a malfunction in the clutch. The engine
torque that can be transferred is reduced. Yo u
may continue driving. Avoid using the clutch in
the future in any way that will p lace a heavy load
on it. For examp le, do not let the clutch rub when
starting on hills, when tow ing a trailer or when
maneuvering the vehicle . The indicato r light
tur ns off once the clutc h is fully operable again.
32
!;.J [/; Electronic Stabilization Control (ESC)
If the bJ indicator light blinks while driving , the
E SC o r ASR (A nti-Sl ip Regulation) is act ively regu­
l ating .
If the
bJ ind icator light turns on, the system has
switched the ESC off. In t his case, you can switch
t h e ign it io n off and then on to swi tch the ESC on
again. The indicator light t urns off when the sys­
tem is functioning fu lly.
If
the . indicator light turns on, ESC was
swi tched off using the
l.a00I button<::> page 146.
Stabi liz ation contro l (ESC /ABS ): malfunction !
See owner's manual
If the G1 ind icator light and the ~ (USA mod­
els),11J (Canada models) ABS indicator light turn
o n and the message appears, there is a malfunc­
tion in the ABS o r the e lectronic diffe rentia l lock .
This also causes the ESC to malfunction. The
br akes st ill func tion wi th the ir normal power, bu t
ABS is not active .
D rive to an authorized A udi dealer or authorized
Audi Se rvice Fa cil ity immed iate ly to have the
malfunction cor rec ted .
(D Tips
For addi tional informat ion on ESC and ABS,
see <::>
page 146 .
!I..' Safety systems
The fll indicator lig ht mon itors the safe ty sys­
tems.
If the
fll ind icator light turns on or blinks, the re
i s a ma lfunction in a safety system.
Drive to an author ized Audi dealer or authorized
Audi Se rvice Fac ility immed iate ly to have the
malfunction cor rected .
_&, WARNING
Have the safety sys tems inspec ted immedi­
a tely . O therwise, the re is a ris k t hat the sys­
tems may not activate during a collision,
which increases the risk of serious injury or
death .

The emergency flashers also work when the igni­
tion is turned off.
@ Tips
You should switch the emergency flashers on
if:
- you are the last car in a traffic jam so that
all other vehicles approaching from behind
can see you, or if
-your vehicle has broken down or you are
having an emergency, or if
-your vehicle is being towed or if you are tow­
ing another vehicle
Interior Lighting
Front interior lighting
Fig. 51 Hea dlin er: fr ont inte ri or lig htin g
Press the corresponding button ~ fig. 51:
-!;I -Door contact switch on/off . The interior light­
ing is controlled automatically.
-M --Interior lighting on/off
Applies to: vehicles with to uch-se nsitive reading
l ights : To turn the respective reading light on or
off , touch the surface @ briefly . To activate the
manual dimming function , touch the surface @
when the light is switched off and keep touching
it until the desired brightness is reached.
Lights and Vision
Rear interior lighting
Fig. 52 Headliner: re ar readi ng ligh ts
.. To turn a reading light on or off, press the "<~
button.
.. To activate the manua l dimming function*,
touch the surface when the light is switched off
"@-and keep touching it until the desired
brightness is reached .
Interior lighting
Applies to: ve hicles w ith interio r light ing
.. Select in th e Infota inment system : I MENU! but­
ton
> Vehicle > l e ft control button > Vehicle
settings
> Interior lighting.
The interior lighting turns on when you switch
the headlights on while the ignition is on.
Version 1
To adjust the brightness of individual zones, se­
lect
Front brightness*, Door brightness or Foot­
well brightness.
Turn the control knob to the left
or to the right. Press the control knob to confirm
the brightness.
Version 2
Select and confirm one of the displayed profiles
by pressing the control knob.
Individual: you can customize the brightness and
color of individual zones. Press the right control
button . Press the control knob again to confirm
the settings .
Audi drive select : the interior and contour light ­
ing color changes depending on the driving mode
selected in drive select*
~ page 133 . ..,.
57

Lights and Vision
@ Tips
The setting is automatica lly stored and as­
signed to the remote control key that is be ing
used.
Instrument illumination
The brightness of th e illumination for the instru­
ments , display and head-up display* can be ad­
jus ted.
F ig . 53 Instru ment i llumi natio n
"' Press the knob to release it.
"'T urn the knob toward"-" o r"+" to reduce or in­
crease the brightness .
,,, Press the knob again to return it to its or iginal
pos ition .
(D Tips
Depending on vehicle equipment, the inst ru ­
ment illumination (needles and gauges) may
turn on when the lights are off and the igni­
tion is switched on . The illumination for the
gauges reduces automatically and eventually
tur ns off as brightness outside increases . This
function reminds the driver to turn the low
beams on at the app ropr iate time.
58
Vision
Adjusting exterior mirrors
Fig. 54 Driver 's doo r: kno b fo r t he e xterio r mirrors
Turn the knob to the des ired position:
0
-a ll adjustment functions are deactivated.
q / P -adjus ts the left/right exter io r mirror.
Move the knob in the desired direct ion.
(@ -Heats* the mir ror glass depend ing on the
outside temperature.
8 -F olds the exterior mirrors* . To fold the m ir­
rors out, turn the knob to one of the other posi­
tions . In the I nfota inment system, you can select
i f the m irro rs fo ld in au tomatically when yo u lock
the
ve hicl e~ page 41 .
Front passenger's exterior mirror tilt
function *
To help you see the curb when backing into a
parki ng space, the su rface of the m irro r til ts
slight ly. For this to happen, the knob must be in
the position for the front passenger's exterior
mirror.
Yo u can adjust the tilte d mir ror s urface by t urn­
i ng t he knob in the desired di rect io n. When you
move out of reverse and into another gear, the
new m irror position is stored and assigned to the
key you are using .
The m irror goes back into its or iginal pos ition
once you drive forward faster than 9 mp h
(15 km/h) or turn the ignition off.
&_ WARNING
Cu rved mi rror sur faces (for example convex)
enla rge the field of vision. However, they

Driving
Messages in the instrument cluster display
Applies to: vehicles with Start/Stop system
Automatic start /stop deactivated: Please
re sta rt engin e manually
This message appea rs when specific conditions
are not met dur ing a stop phase. The Sta rt/Stop
system wi ll not be able to restart the engine . The
engine must be started with the
I S TAR T ENGINE STOP I button .
Automatic start /stop system: malfunction!
Function unavailabl e. Ple as e cont act Serv ic e
There is a malfunction in the Start/Stop system .
Drive the vehicle to an authorized Audi dealer or
author ized Service Facility as soon as poss ible to
have the ma lfunction corrected.
Electromechanical
parking brake
F ig. 97 Center console: park ing b rake
Your veh icle is equipped with an electromechani­
cal parking brake
(D ¢ fig. 97. The parking brake
is designed to prevent the vehicle from rolling
un intent ionally and replaces the hand brake .
Setting/manu ally rele asing the parking
brake
~ Pull the(®) switch to set the parking brake. The
LED in the sw itch turns on . The
-(USA mod­
els) ;II (Canada models) indicator light a lso
turns on in the inst rument cluste r display .
~ To release the parking brake manually, press
the brake o r accelerator pedal whi le the igni­
tion is switched on and press
t h e®> switch at
the same time. The LED in the button and the indicator light in the display turn off.
88
Releasing the pa rking brake automatically
Requirement: the drive r's door must be closed.
~ To start d riving and release the pa rking brake
automatically, p ress the accelerator pedal as
usual.
In add ition to releas ing the parking brake auto­
matically, other convenience and safety functions
are avai lab le w hen you sta rt
d rivi ng¢ page 89,
Starting to drive .
Preventing the automatic parking brake
release
The veh icle cou ld beg in ro lli ng u nintentionally,
depe nding on the hill o r if towing a trai le r.
~ To prevent the park ing brake from releasing au­
tomatically, pull and hold
the(®) switch and
press the accele rator peda l. The pa rking brake
remai ns set a nd p revents the vehicle from roll­
ing backwa rd.
~ You can release the®) switch again on ce you
are sure that you are giving enough driving
force to the wheels by pressing the accelerator
pedal.
Eme rgency braking function
You can use t he emergency b raking func tion in an
emergency situation, or i f the standard brake op ­
eration ma lfunctions or is disab led .
~ Pull and ho ld the(®) swi tch.
~ As soon as you re lease the®> switch or acceler -
ate, the braking stops.
P ull ing and ho ld ing
t h e®) sw itch wh ile driving
the ve hicle ac tiva tes the eme rge ncy brak ing func­
tion. The ve hicle is bra ked at a ll four wheels by
activating the hydraulic b rake system . The brak ­
ing effect is sim ilar to heavy
braking ¢ ,A.
To reduce the risk of act ivat ing the emergency
braking by m istake, a w arning tone (buzzer)
sounds when
the© sw itch is p ulled . Emergency
braking stops as soon as
the(®) sw itch is released
o r the accelerator pedal is pressed .
Parking
~ Press the bra ke pedal to stop the veh icle.
~ Pull the®) swi tch to set the par king b rake .