2018 AUDI A4 brake light

Driving
"'T o activate hill hold assist, press and hold the
brake peda l for several seconds. The vehicle
must be in an uph ill direction of travel.
Afte r releasing the bra ke pedal, the brak ing pow­
er is ma intained for a brie f
moment¢ A to pre­
vent the vehicle from rolling back when starting .
During this time, you can eas ily beg in to move
your veh icle.
A WARNING
- If you do not begin dr iving immediately or
the engine stalls after releas ing t he brake
peda l, yo ur vehicle may begi n to roll back­
ward . Press t he b rake pedal o r set the park ­
i ng bra ke immed iate ly.
- The intelligent techno logy of hill hold assist
c annot overcome the lim itations imposed by
n atu ral physical laws. The incre ased comfo rt
offered by h ill hold assist sho uld not cause
yo u to take safety risks .
- Hill ho ld assis t can not hold the veh icle in
place on all h ills ( for example, i f the gro und
is slippery or icy) .
- T o reduce the risk of an ac cident, always
make sure the vehicle is si tuated safely
whi le stat ionary.
Driving offroad
General information
A ppl ies to: a ll r oad
The electro nic stabilization co ntrol (ESC) func­
tions were e nhanced for dr iv ing offroad. Offroad
mode c an be ac tivated whe n driving in situat ions
where slipp age or a different ia l loc k func tion is
necessary ¢ page 147. The h ill descent ass ist is
a lso available, which automatica lly brakes the
ve­
h icle and mainta ins a constant speed as a result
¢ page 148. In add ition, your Audi prov ides con­
tinuous all wheel drive.
However , you r Audi is not an offroad vehicle.
Only drive in terrain that is su itable for the vehi ·
cle and your driving abilit y. Never take an y un·
neces sary risks!
90
Afte r driving offroad
- After driving off road , remove b ranches and
other debris from the rad iator grille, under ­
body, and wheels . Look especially fo r foreign
objects (such as stones) that may be st uck in
the t ire tread.
- Clean the vehicle body and underbody and
in­
spect the vehicle for possible damage.
- Clean the windows, headlights, tail lights and
the license p late if they are dirty.
- Per form a brake test (especia lly after d riving
throug h water) .
A WARNING
-Be especially aware and attentive when d riv ­
ing under diff icu lt cond itions. Vehicle dam­
age and in juries may occur when driving at
excess ively high speeds or with incorrect
driving maneuvers.
- Always ad just yo ur speed and driving sty le
to the roads, terrain, traffic and weat her
conditions . Drive especially slowly if there is
low visibility when off road.
- Please note that t he wheels can sp in mo re
and the vehicle can swerve when in offroad
mode, espe cially when the road is slippery
or h as loose s urfa ce mate rial.
- D riving stability is reduce d when in offroad
mode.
@ For the sake of the environment
Avo id harm ing the env ironmen t and show
conside ration fo r nat ure.
(D Tips
Only drive where it is permitted and always
stay on the prov ided roads and paths .
Driver messages
Applies to : allroad
There is only one right way to drive in difficul t
conditions: slowly and with caution!
Observe the following when driving on unpaved
r oads :
1111>

In the no rmal mode D, the transmission a uto­
matica lly selects the suitab le gear ratio. It de­
pends on eng ine load, vehicle speed and driving
style.
Select the
sport mode S for sporty driving. The
vehicle makes full use of the engine's power.
Shifting may become noticeable when accelerat­ ing.
The S selector lever position engages automati­
cally when you se lect
Dynamic mode in drive se­
l ect*.
A WARNING
Read and follow all WARNINGS.
-The vehicle can roll even if the ignition is
switched off.
-Power is sti ll transmitted to the wheels
when the eng ine is running at idle . To pre­
vent the veh icle from "creeping", you must
keep your foot on the brake in all selector
lever positions (except P and N) when the
engine is running .
-Before opening the hood, select the P selec­
tor lever position and set the parking brake.
This reduces the risk of an accident. Always
read and fo llow the applicable warnings
¢ page 323, Working in the engine com­
partment.
@ Tips
If you accidentally se lect N wh ile d riving, take
your foot off the accelerator pedal and wa it
for the engine to slow down to idle before se­
lect ing Dor S.
Driving tips
Appl ies to: vehicles with automatic transmissions
Starting the engine
.,. The P or N position must be selected.
Starting from a stop
.. Press and hold the brake pedal.
~ .. Start the engine ¢ page 83 .
;::; .,. Press the lock ing button @ on the selector Lev-,....
:::l er and select the D, E, So r R position 0
3 ¢page 91 .
Driving
.. Wait a moment until the transmission shifts.
You will notice a slight movement when the
gear engages .
.. Release the brake pedal and press the accelera-
tor
pedal ¢&, .
Various convenience functions are available for
start ing on h ills
¢ page 89.
Stopping temporarily
.,. Press the brake pedal to stop the vehicle, for
examp le at a traffic light. Do not press the ac­
celerator pedal when doing this .
.. To prevent the vehicle from rolling when you
start driving, set the parking brake when stop­
ping on steep
hills ¢&, .
.. The parking brake will release automatically
and the vehicle will start moving once you press
the accelerator pedal.
Stopping /parking
If the selector lever is not in the P position when
you open the driver's door, the vehicle could roll.
.. Press and hold the brake peda l¢ &, .
.. Set the parking brake.
.. To select the P selector lever posit ion, press the
P button
@ on the selector lever¢ page 91 ,
fig . 98 .
Under certain conditions, such as driving in the
mountains or when towing a trailer, it may be
helpful to switch to manual mode temporar ily
and shift
manually to adapt to the driv ing cond i­
t ions ¢ page 94 .
On hills, activate the park ing brake first and then
shift into the P
position ¢ page 88. This prevents
too much stress from being placed on the locking
mecha nism .
A WARNING
--The vehicle can roll even when the engine is
switched off.
-Unintended vehicle movement can lead to
. . . . serious mJunes .
-To reduce the r isk of an accident, do not
press the accelerator pedal when changing
the selector lever position while the vehicle
is stationary and the engine is running.
93

a co .... N ,....
N .... 0 0
3 co
.,. To shift down a gear, tap the 0 shift paddle.
.. To engage the lowest gear, hold the 0 shift
paddle.
.. If you do not press a shift button within a short
time while in the D/S position, the transmission
will return to automatic mode. To keep shifting using the shift paddles, move the selector lever
to the right out of the D/S position .
.,. When you want to shift out of tiptronic mode,
press and hold the
0 shift paddle for a longer
period of time or move the selector lever back
and release it.
The transmission automatically shifts up or down before critical engine speed is reached.
The transmission only allows manual shifting
when the engine speed is within the permitted
range.
@ Tips
- If you shift to the next lowest gear, the
transmission will only shift if the engine will
not be over-revved.
- With kick-down, the transmission shifts to a
lower gear, depending on vehicle speed and
engine speed.
- tiptronic does not work if the transmission
is running in emergency mode.
Kick-down
Applies to: vehicles with automatic transm issions
Kick-down enables maximum acceleration.
When you press the accelerator pedal down be­
yond the resistance point, the automatic trans ­
mission downshifts into a lower gear and the en­
gine utilizes its full power , depending on vehicle
speed and engine RPM. It shifts up into the next
higher gear once the maximum specified engine
RPM is reached.
A WARNING
Please note that the wheels could spin on
slick or slippery roads when kick-down is ac­
tive .
-
Driving
Launch control program
Applies to: vehicles with S tronic transmission
The launch control program provides the best
possible acceleration when starting from a stop .
Requirement: the engine must be at operating
temperature and the steering wheel must not be
turned .
.. Deactivate the Start/Stop system* c> page 87 .
The LED in the ICA> ~I button turns on .
.. Applies to: seda n: Press the I.B OFFI button
briefly while the engine is running
c> page 147.
The II indicator light turns on and the mes­
sage
Stabilization control (ESC): sport. Warn·
ing! Restricted stability
appears in the instru­
ment cluster display .
.. Applies to: allroad: Press the i.i, O FF I button
briefly while the engine is
running ¢ page 147.
The II indicator light turns on and the mes­
sage
Stabilization control (ESC): offroad.
Warning! Reduced stability
appears in the in­
strument cluster display .
.. Pull the selector lever back out of the D/S posi­
tion briefly to select the S position or select the
Dynamic driving mode in drive se-
lect* ¢ page 134 .
.,. Press the brake pedal firmly with your left foot
and hold it all the way down for at least one
second .
.. At the same time, press the gas pedal all the
way down with your right foot until the engine
reaches and stays at a high RPM level.
.. Remove your foot from the brake pedal within
five
seconds ¢,,&. .
A WARNING ~
-Always adapt your driving to the traffic flow.
- Only use the Launch control program when
road and traffic conditions allow it and oth­
er drivers will not be endangered or both­
ered by your driving and the vehicle's accel­
eration.
- Please note that the drive wheels can spin
and the vehicle can break away when sport
mode/offroad mode is switched on, espe­
cially when the road is slippery.
95

Driving
"' Keep the brake pedal pressed and engage the
fo llowing se lector lever positions one after the
other: N, D and back to N.
"' Turn the eng ine off again .
"' Grasp the socket wrench w ith both hands and
pull it up and out carefully to remove
<=> (D .
"' Reinsert the cover and rubbe r mat.
When the parking lock emergency re lease is
used, the
mJ ind icator light and the N selector
lever position tu rn on in the instrument cluster .
The message
Dang er of rolling away! P not pos­
s ible . Please apply parking brake
a lso appea rs .
.&_ WARNING
- Only activ ate the emerge ncy re le ase while
on a level s urface o r a slig ht slope.
- T he pa rking lock may only be released using
the emergency release if the parking brake
is set. If i t is not functioning, secure the ve­
hicle from rolling using the brake peda l or
other s uitab le means, s uch as blocking a
front and a rear wheel. An unsec ured vehicle
may roll away, wh ich increases the r isk of an
acc ident.
- To reduce the risk of an accident, you m ust
not drive when the eme rgency re lease is ac­
t ivated.
(D Note
- Read and fo llow the impo rtant instr uctions
abo ut towing<=>
page 376.
- The risk of damage increases if you do not
r emove the socket wrench carefully when
resett ing the pa rking lock.
98
-

a co .... N ,....
N .... 0 0
3 co
Trailer towing Driving with a trailer
General information
Your Audi was designed primarily for passenger
transportation .
If you plan to tow a trailer, please remember that
the additional load will affect durability, econo­ my and performance.
Trailer towing not only places more stress on the
vehicle, it also calls for more concentration from
the driver.
For this reason, always follow the operating and
driving instructions provided and use common
sense.
Technical requirements
Trailer hitch
Use a weight-carrying hitch conforming to the
gross trailer weight. The hitch must be suitable
for your vehicle and trailer and must be mounted
securely on the vehicle's chassis at a technically
sound
location . Use only a trailer hitch with a re­
movable ball mount . Always check with the trail­
er hitch manufacturer to make sure that you are
using the correct hitch.
Do not use a bumper hitch.
The hitch must be installed in such a way that it
does not interfere with the impact -absorbing
bumper system. No modifications should be
made to the vehicle exhaust and brake systems .
From time to time, check that all hitch mounting
bo lts remain securely fastened.
When you are not towing a trailer,
remove the
tra iler hitch ball mount . This prevents the hitch
from causing damage shou ld your vehicle be
struck from beh ind ¢
,&. .
Trailer brakes
If your trailer is equipped with a braking system,
check to be sure that it conforms to all regula­
tions .
Trailer towing
The trailer hydraulic brake system must not be
directly connected to the vehicle's hydraulic
brake
system ¢.&. .
Safety chains
Always use safety chains between your vehicle
and the trailer.
Trailer lights
T ra iler lights must meet all regulations . Be sure
to check w ith your author ized Audi dealer for cor­
rect wiring, switches and relays.
Mirrors
If you are unable to see the traffic behind you us­
ing the regular outside mirrors, then you
must in­
stall extended mirrors. It is important that you
always have clear vision to the rear.
,8. WARNING
After removing the traile r hitch, do not store
it in your vehicle. In case of sudden braking,
the hitch could fly forward and injure you or
your passengers.
Operating instructions
Maximum trailer weight
A trailer for your vehicle is limited to a typical
class 1 or class 2 trailer.
Trailer load distribution
Be sure the load in the trailer is held securely in
place to prevent it from shifting forward, back­
ward or sideways.
Never allow a passenger to ride in a trailer ¢.&.
in Driver messages on page 100 .
Engine cooling system
Towing a trailer makes the engine work harder. It
is important that the cooling system's perform ­
ance is up to the additional load. Make sure that
the cooling system has enough fluid.
Tire pressure
When towing a trailer, inflate the tires of your
vehicle to the tire pressure listed under "Full
load" on the label ¢ page 344. Inflate trailer
99

Ass is tance sy stems
Assistance systems
Electronic speed Limiter
Your vehicle may be factory equipped with tires
that are rated for a maximum speed of 130 mph (210 km/h). This is less than the maximum speed
of your vehicle. To reduce the risk of sudden tire
failure and loss of control if the vehicle is operat­
ed at excessive speeds, your vehicle also has an
electronic speed limiter. The electronic speed
lim iter prevents your vehicle from going faster
than the t ire speed rating. For mo re information
<=>page 334.
If the engine control unit receives faulty vehicle
road speed signals, the Malfunction Indicator
L amp (MIL)
¢..ffi will illumina te. If this occurs,
con tact the nearest au thorized A ud i dealer for
assistance.
_& WARNING
Always observe the posted speed limits and
adjust you r speed to suit prevailing road, traf­
fic and weather conditions. Never drive your
vehicle faster than the maximum speed rating
of the tires installed.
Speed warning system
Introduction
Applies to: vehicles with speed warning system
The speed warning system helps you to stay be­
low a specified maximum speed that can be set,
changed or deleted in the Infotainment system.
-
The speed warning system warns you if you are
exceeding the maximum speed that you have set .
A wa rning tone will sound as soon as you r speed
ex ceeds the s tored v alue s light ly. Th e indicato r
light also turns on in the instrument cluster dis­
p lay
ct] (USA models)/ [SJ (Canada models) and
a message . The indicator light
(CJ / [SJ and the
message turn off if the speed falls back be low
the stored maximum speed.
Se tting a threshold is recommended if you would
like to be reminded when yo u reach a certain
maximum speed. Situations where you may want
to do so include driving in a country with a gener-
102
al speed limit or if there is a spec ified maximum
speed for winter tires.
Setting the warning threshold
Se lect in the Infotainment system: I ME NU I but­
ton
> Vehicle > left co ntro l bu tton > Driver as sis­
tance
> Speed warning > Manu al.
(D Tips
Regard less of the speed warning sys tem, you
shou ld alw ays mo nitor your speed using the
speedometer a nd make sure yo u are fo llow ing
the lega l speed limit.
Cruise control system
Switching on
Applies to: vehicles with cruise control system
The cruise control system makes it possible to
drive at a constant speed starting at
15 mph
(20kmlh).
0
f
~
0
Fig . 103 Operat ing lever: c ru ise control system
.,. To switch the system on, pu ll the lever into po -
sition@<=> fig. 103 .
.. Drive at the speed to be mai ntained.
.. To store the speed, press the button @.
The stored speed and the
ftji(l)~14 (USA models) I
l'I (Cana da models) indicator light appear in the
instrument cluster display. An additional indica­
tor appears in the head-up display *.
The speed is maintained by modifying engine
power or through an active brake intervention.
A WARNING
-Always pay attention to the traffic around
you when the cruise control system is in
-

a co .... N ,....
N .... 0 0
3 co
operation. You are always responsible for
your speed and the distance between your
vehicle and other vehicles.
- For safety reasons, cruise control should not be used in the city, in stop-and-go traffic, on
winding roads and when road conditions are poor (such as ice, fog, gravel, heavy rain and
hydroplaning), because th is increases the
risk of an accident.
- Switch the cruise control off temporar ily
when driving in turn ing lanes, h ighway exits
o r in construction zones.
- Please note that unconsciously "resting"
your foot on the accelerator pedal prevents the cruise control from b raking. This is be­
ca use p ressing the acce le ra to r peda l ove r­
rides the cruise contro l system.
- If a brake system ma lf u nction such as over­
heating occurs when the c ruise contro l sys­
tem is switched on, the braking function in
the system may be switched off . The rest of
the cruise control system functions remain
act ive as long as the
@;\l)M~ (USA models) /
Bl (Canada models) indicator light is on.
Before driving downhill a long distance on a
steep hill, decrease your speed and select a
lower gear. Th is makes use of the eng ine
braking effect and relieves the brakes.
(D} Tips
-Applies to: vehicles with manual transmis­ sion: The set speed can on ly be reached if
the engaged gear permits it so that the en­
gine is not over-rewed and will run smooth­ ly. Therefore, s hift into the higher or lower
gear in a timely manner .
- The brake lights turn on when the brakes are applied automatically.
Changing the speed
Applies to: vehicles with cruise control system
.. To inc rease/decrease the speed in 1 mph ( 1
km/h) increments, br iefly
tap the lever toward
0 10 ¢ page 102, fig. 103 to the first level.
A ss ista nce sys te m s
.. To increase/decrease the speed in 5 mph (10
km/h) increments, briefly
tap the lever toward
0 10 to the second level.
.. To increase or decrease the speed quick ly, hold
the lever toward 0 10 to the first or second
level unt il the desired speed is reached .
Overriding the speed
Applies to : vehicles with cruise control system
You can press the acce lerator pedal to increase
you r speed, fo r example if you want to pass
someone. The speed you set earl ier will resume
as soon as you release the acce lera to r pedal.
However, if you are exceeding the stored speed
by a considerable amount fo r a long time, the
c ruise contro l system will temporarily switch off.
T he
(ij;jl)~i~ (U SA mode ls) !Iii (Canada mode ls) in­
dicator light in the inst rument cluste r turns off
and the stored speed is maintained.
Preselecting a speed
Applies to: vehicles with cruise control system
You can pre-select your desired speed when the
vehicle is stationary .
.. Switch the igni tion on.
.. Pull the lever i nto pos it ion (!) ¢page 102,
fig. 103 .
.. To increase or decrease the speed, tap the lever
toward
0 10 .
This function makes it possible, fo r example, to
save the speed you want before driving on the
highway. Once you are on the expressway, acti­
vate the cruise contro l system by pull ing the lev­
er into
position (!).
Switching off
Applies to : vehicles with cruise control system
Deact iva ting tempor aril y
.. Press the brake pedal, or
.. Press the lever toward @(not locked i nto
place)
¢ page 102, fig. 103 .
103

a co .... N ,....
N .... 0 0
3 co
In d ic at or ligh ts and messages in the instr ument
cluster display inform you about the current sit ­
uation and setting.
A n ad dit iona l in di ca tor appears in the head -up
d isp lay*.
Switching adaptive cruise control on
" Pull the lever toward you in to posi tion @
¢fig. 111.
Storing the speed and activating regulation
" To store the cu rrent speed , press the ISET ! but­
ton
¢ fig . 111 . The stored speed is shown in the
speedomete r in the LED
line @ and appears
br iefly i n the status
line @¢fig . 112 .
"Applies to: vehicles with automat ic transmis­
s ion: To acti va te the cont ro l when st ation ary,
also press the bra ke peda l.
Switching adaptive cruise control off
" Push the lever away from you in to posi tion @
u nti l it clicks into place. The message ACC:
off
appears.
@ Indicator lights
fll-Adaptive cru ise con trol is switched on . No
ve hicles are detected ahead. The stored speed is
m ain tained .
•-A vehicle d rivi ng a head was detected. The
adapt ive cr uise control system regulates the
speed and distance to the veh icle dr iv ing ahea d
a n d accelerates/brakes automatically .
• - Automatic transmission: adaptive cruise
control must be sw itched on . A veh icle was de­
tec ted ahead . Yo ur vehicle is s tat io nary and w ill
n ot sta rt driving au tomatically .
tii-Automatic transmission : adaptive cruise
control must be sw itched on . No vehicles were
detected ahead . Your veh icle is stationary a nd
w ill no t start dr iv ing automa tica lly .
• -The automatic braking is not enough to
maintain a sufficient distance to a veh icle dr iv ing
ahead . You must
in tervene ¢ page 114, Driver
intervention request .
Assistance systems
© Instrument cluster display
If the Driver assistance di spl ay is not shown in
t h e instr ument cluster d isp lay, you can open it
u sing the m ultif unct ion steering whee l buttons
¢ page 13.
Ba sed on the gr aphic dis pla y, you can dete rmine
i f th e sys tem is maintain ing a d istance to the ve ­
hicle d riving ahead a nd what t hat distance is .
No vehicle -no vehicle was detec ted dr iv ing
ahe ad.
Silver vehicle -a vehicle was detected driving
ahea d.
Red veh icle -request for drive r interve ntion
¢ page 114.
The five distance bars on the gauge © represent
t h e set distance (refer
to ¢ page 113 for infor­
mation o n how to change the d ista nce). If you
fall be low the selected d ista nce, the distance
bars become red from the bo ttom upwa rd.
.&, WARNING
Applies to: vehicles w ith automatic transm is­
sion: If you pre ss t he
I SET ! butt on whe n driv­
i ng at speeds below 20 mp h (30 km /h) , the
ve hicle accelerates au toma tic ally up to 20
mph ( 30 km/h), which is the m inimum speed
that can be set.
@ Tips
- If you swit ch the ig nitio n or the ad ap tive
c ruise cont rol sys tem o ff, the set s peed is
erased fo r safety reasons .
- The e lec troni c sta biliz ation control ( ESC)
and the an ti- slip -regul ation (AS R) are auto ­
matically switc hed on when t he adaptive
cruise cont rol is switched on.
111