parking brake AUDI S4 2017 Owners Manual

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 Informat ion System ..... .. .... .
H ead-up Display .... .. .. ..... ... .. .. .
Camera-based traff ic sign recognition .. .
O n Board Diagnostic System (OBD) .... .
I ndicator l ights .............. .... .. .
Starting and driving
Opening and closing Cent ral Lock ing .............. .... .. .
L uggage compa rtment lid ... ..... .. .. .
Child safety lock .... .......... .. .. .. .
Power window ... .. .......... .. .. .. .
Sliding/tilting sunroof ......... .... .. .
Valet parking function ............. .. .
Garage door opener (Homelink) . .. .. .. .
L ights and Vision .............. .. .
Exterior lighting . .. . .......... .. .. .. .
Interior lighting ...... ........... ... .
V1s1on ....... .. ................ ... .
Windshield wipers . ... .... .... .. .. .. .
Digital compass . ............. .... .. .
Seats and storage ............ ... .
General information .......... .. .. .. . 6
8
8
8
10
12
15
16
23
24
25
26
37
37
3 7
43
45
45
47
47
48
so so
53
54
56
58
6 1
61
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 61
H ead restraints . . . . . . . . . . . . . . . . . . . . . 62
Memory function . . . . . . . . . . . . . . . . . . . . 63
Sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Luggage compartment . . . . . . . . . . . . . . . 65
Roof rack . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Warm and cold . . . . . . . . . . . . . . . . . . . 68
Climate control system . . . . . . . . . . . . . . . 68
3 zone deluxe automatic climate control . 69
Steer ing whee l heating . . . . . . . . . . . . . . .
7 1
2
Driving ..... .. .. .. .. ... .......... . .
General information . ... ........... . .
Steering .......... .. .. . .......... . .
Start ing and stopping the eng ine ..... . .
Start/Stop system .. .. ............. . .
E le ctromechanical parking brake ...... .
Automat ic transmission
Trailer towing ... .. ... .. ..... ... . .
Driving with a trailer .. ........ ..... . .
Trailer towing information
Driver assistance .. ............ .. .
Assist ........... ... .............. .
Electronic speed limiter ... .. ... ... .. . . 73
73
75
76
78
81
83
90
90
91
93
93
93
Speed warning system . . . . . . . . . . . . . . . . 93
Cruise control system . . . . . . . . . . . . . . . . 93
Predictive efficiency assist . . . . . . . . . . . . . 95
Audi adaptive cruise control . . . . . . . . . . . 96
Predictive control (efficiency assist) . . . . .
102
Congestion assist . . . . . . . . . . . . . . . . . . . . 104
Distance ind icator and distance warning 105
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Audi pre sense . . . . . . . . . . . . . . . . . . . . . . 107
Audi pre sense basic. . . . . . . . . . . . . . . . . . 108
Audi pre sense front . . . . . . . . . . . . . . . . . 108
Audi pre sense rear . . . . . . . . . . . . . . . . . . 110
Audi pre sense city . . . . . . . . . . . . . . . . . . . 110
Settings in the Infotainment system . . . . 111
Driver messages . . . . . . . . . . . . . . . . . . . . . 111
Audi active lane assist . . . . . . . . . . . . . . . . 112
Audi sid e ass ist . . . . . . . . . . . . . . . . . . . . . 115
Audi drive select . . . . . . . . . . . . . . . . . . . . . 121
Parking systems . . . . . . . . . . . . . . . . . 124
Genera l information . . . . . . . . . . . . . . . . . 124
Rear parking system . . . . . . . . . . . . . . . . . 125
Parking system plus . . . . . . . . . . . . . . . . . . 125
Rearview camera . . . . . . . . . . . . . . . . . . . . 126
Peripheral cameras . . . . . . . . . . . . . . . . . . 128
Adjusting park assist . . . . . . . . . . . . . . . . . 131
Error messages . . . . . . . . . . . . . . . . . . . . . 132
T railer hitch . . . . . . . . . . . . . . . . . . . . . . . . 132
Intelligent Technology . . . . . . . . . . 134
Electronic Stabilization Control (ESC) . . . . 134
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

<( a, .... N ,....
N .... 0 0
3 a,
(!) 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
- Headl ight assistant ......... .
- Active lane assist .. ..... ... . .
- Congestion 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 ~/steering wheel heating
- Sh ift paddles .............. .
® Instrument cluster ....... .. .. .
@
@
@
@
~
@
Reset trip odometer ........ .. .
W indshie ld w asher 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
llS
41
63
5 1
5 1
112
104
25 7
12, 15
14, 15
1 4
86
10
12
56
53
269
75
93
96
54
25
305
23 50
50
Coc kpit o ve rv iew
-Rear fog lights .. .. .. ..... .. .
@ Switch for luggage compartment
li d .... ... .. .. .. .... .. ... .. . .
@ Power exterior m irro r adjustment
@ Power windows .............. .
@ Parental cont rol ............. .
@ Infotainment system dis play . .. .
@ Lockable glove compartment ... .
@ Drives for CD, DVD, SI M cards .. .
@ Front passenger's airbag .... .. .
@ Valet Park ing funct ion ........ .
@ Climate cont ro l system ........ .
@ Depend ing on equ ipment, buttons
for:
- drive select .. .. ............ .
- Start/Stop system . ... ... .. . .
- Electronic Stabilization Control
(ESC) ..... .. .. ... ....... .. .
- Parking system . .... . ..... .. .
- Switching the Infota inment sys-
tem disp lay on/off .......... .
@) Socke t ... .. .. .. ............ .
@ Cup holder . ... .. .... . ..... .. .
@ Infotai nment system on/off
button ... .. .. .. .... .. ... .. . .
@ Center armrest w ith sto rage com­
partment . Depending on vehicle
equipment, it may have:
- Aud i m usic interface ........ .
@ starting the engine when the re is a
ma lfunction .. ... .... . ..... .. .
@ E lectromechanical parking brake
@ Automa tic transmission se lector
lever ... .. .. . ... ............ .
@ Infotainment unit ............ .
@ I START EN GIN E STOP ! ........ .
(D Tips
50
43 54
45
45
142 64
2 10
257 47
68
121
78
135
124
142
64
64
141
215
78
81
83
141
76
Some the equipment listed here is only instal ­
l ed in certa in models or is available as an op-
tion .
9

<( a, .... N ,....
N .... 0 0
3 a,
on a monochrome display. The. or u centra l
indicator light turns on at the same time to indi­
cate the priority of these ind icator lights.
Red indicator lights
--------------
Central indicator light
c::> page26,
Aud i pre sense*
c::> page 10 7
USA models:
Brake system ../
c::> page 29
Canada models :
Bra ke system ../
c::> page 29
USA models:
Electromecha nical parking brake
c::> page 30
Canada models:
Electromechanica l parking brake
c::> page30
Cooling system
c::> page 31
E ng ine oi l pressure
c::> page 32
Eng ine oil level
c::> page 32
Generator
c::> page 31
Safety belt
c::> page 31
Electromechanical steering../
c::> page 13 7
Steering lock
c::> page 32
E ng ine start system
c::> page32
Transmission
c::> page 87
Adapt ive cruise control*../
c::> page 98
Congestion assist*
c::> page 104 Cockpit overview
Ad B lue*
c::> page 300
Ad Blue*
c::> page 300
Yellow indicator lights
--------------
Central indicator light
c::> page 26
E lectronic Stabilization Contro l
(ESC)
c::> page 32
El ectronic Stabilization Control
(ESC) ../
c::> page 32
Electronic Stabiliza tion Control
(ESC)
c::> page 13 5
Brake system
c::> page 33
USA models:
Anti-lock braking system (ABS)../
c::> page 32
Canada models:
Anti-lock b raking system (ABS)../
c::> page 32
Safety systems ../
c::> page 33
USA models:
Brake pads
c::> page 33
Canada models:
Brake pads
c::> page 33
El ectromechanical parking brake
c::> page 30
T ire pressure
c::> page 335
Tire pressure
c::> page 335
Engine control
c::> page 33
Engine contro l (diese l engine)
c::> page 33
27

<( a, .... N ,....
N .... 0 0
3 a,
_J:L
1:1
Predict iv e e ffici ency assist *
¢ page 95
Predictive e fficiency assist*
¢page95
USA models :
Predictive efficiency assist*
¢page 95
Canada models :
Predictive efficiency assist*
¢page95
P redictive efficiency assist*
¢page 95
Predictive efficiency assist*
¢page95
Predict ive efficiency assist*
¢page95
Start/Stop system*
¢ page 78
Start/Stop system*
¢page 78
Remote control key
E> page 78
Ad B lue*
¢ page300
Automatic transm ission
¢page87
D ynamic stee ring*
¢page 137
Adapt ive cr uise control*
¢page
99,
Congestion assist*
¢ page 106
Congestion assist*
¢page 106
Aud i pre sense*
c>page 111
USA models :
Electromechanical parking brake
c>page30
Canada models :
Electromechanical pa rking brake
¢ page30 Coc
kpit o ve rv iew
Parenta l control
¢ page 45
USA models:
Speed warning system*
¢ page 93
Canad a model s:
Speed warning system*
¢ page 93
Active lane assist* ¢ page 113
Audi s ide ass ist*
¢ page 120
Camera-based traffic sign recogni­
tion* ¢ page 25
Head light assistant*
¢ page 51
High beams
¢ page 51,
Head light assistant*
¢ page 51
BRAKE/((D) Brake system
If this indicator l ight tur ns on, t here is a malfunc­
t ion in the brake system .
1111 (USA models ) /. (Canada models )
Brakes: stop vehicle and check brake flu id leve l
Stop the vehicle and check the b rake fl uid leve l.
See an authorized Audi dealer or authorized A udi
Se rvice Facility for assistance if necessary.
1111 (USA model s) /. (Canada model s)
Brakes: malfunction! Stop vehicle safely
If t he indicator ligh t turns on and this message
appea rs, the re is a ma lfunction in the brake
booster .
If the~ (USA models)/ ri] (Canada mode ls)
ABS indicator ligh t and the
J.id [SC indicator light
turn on toge ther with the
1111 (USA models)/
• (Canada models) brake system indicator light
and the message appea rs, then the ABS, ESC and
braking d istribution a re failing
c> ,&. . ..,.
29

Cockpit over view
Do not cont inue driving . See an authorized Audi
dealer or a uthorized Audi Service Facility for as­
sistance ¢& .
1111 (U SA models ) / . (Cana da m od els) Park­
ing br ake: malfun ction! Safel y stop veh icle . See
owner 's manual
-If the indicato r light a nd the message appear
when the vehi cle is st ationary or aft er sw itch­
ing the ignition on ,
check if you can release the
parking brake . If you cannot re lease the park­
i ng brake, see yo ur authorized Aud i dea ler or
authori zed Aud i Serv ice Facility . If you can re­
lease the park ing brake and the message still
appears , see an authorized Audi dealer or au ­
thorized Aud i Serv ice Facility immediately to
have the malfunction corrected .
-If the indicator light and message appear w hile
driving ,
the hill start assist or emergency brak ­
ing function may be malfunctioning .
It may not
be possib le to set the pa rking brake or release
it once it has been set. Do not pa rk your veh icle
on h ills. See an author ized Audi dealer or au ­
thorized Audi Serv ice Facility fo r ass istance .
Brake servo: re strict ed . You can continue driv ­
ing . Pleas e contact Servic e
There is a malfunction in the brake booster . The
brake booster is available, but its effectiveness is
reduced . Braking behav ior may be diffe rent from
how it no rma lly fu nctions and t he b rake pedal
may v ibrate .
Dr ive to an authorized Aud i dea le r or authorized
Aud i Serv ice Facility immediately to have the
malfunct io n corrected.
_&. WARNING
- Read and follow the warn ings in
¢ page 304, Working in the engine com­
partment
before opening the hood and
check ing the brake fl uid level.
- If the brake system indicator light does no t
turn off o r it turns on while driving, the
brake fluid level in the reservoir is too low,
and this increases the risk of an accident.
Stop the vehicle and do not continue dr iv-
30
ing . See an autho rized Audi dea ler or au­
thorized A udi Service Fac ility for assistance.
- If the brake system indicator light turns on
together w ith the ABS and ESC indicator
lights, the ABS/ESC regu lating function may
be malfunct ion ing. Functions that stabilize
the vehicle are no longer available . This
could cause the vehicle to swerve, which in­
creases the risk that the vehicle will slide. Do not co ntin ue d rivi ng. See an autho rized
Aud i dea le r or a ut horized Audi Serv ice Facili­
ty fo r ass istance .
PARK/<®)/!®)' Electromechanical parking
brake
If the -(USA mode ls) I. (Canada models)
i ndicator l ight turns on, the parking brake was
set .
If the -(USA mode ls)/ . (Canada models) in­
dicator light blinks, the braking force is not build­
i ng up enough or not building up at a ll. Se lect the
P selector lever posit ion to help secure the vehi­
cle. Make sure the indicator light is off before you
start driving .
£dJ Parking brake: mal function! Please contact
S ervice
There is a ma lf u nction in the parking brake. Drive
to an authorized Aud i dea ler or authorized Audi
Service Facility immediate ly to have the malfunc­
tion corrected.
• (USA models )/ lC~) (Canada model s) Parking
brake: caution! Vehicle parked too steep
There is not eno ugh braking force to ho ld the ve ­
hicle in p lace . T he brakes have overheated. The
vehicle could roll away even on a small incline.
• (USA model s)/¢~) (C a nada model s) Parking
brake: applied
If this message appea rs, press the b rake pedal
first and then release the parking brake if ne ces­
sary .
II (USA model s)/¢~) (Canada mode ls) Parking
brake: emerg ency braking
The emergency braking funct ion was triggered . ..,.

<( a, .... N ,....
N .... 0 0
3 a,
Please relea se parking br ake
Re lease the par king brake if this message ap ­
pears .
Please press brak e pedal to r ele as e par king
brake
To release the parking brake, press the brake
pedal and press the~ button at the same time,
or start driv ing with hill start ass ist
¢ page 82,
Starting from a stop .
(D Tips
For additional information on the parking
brake, refer to ¢
page 81.
_L Cooling system
• Turn off engin e and che ck co olant le vel.
The coolant level is too low.
Do not continue driving and switch the engine
off. Check the coolant level ¢
page 310.
-If the coolant leve l is too low, add coolant
~ page 310. Only continue driv ing once the in­
dicator light turns off.
• Coolant temperature : to o high . Let engine
run with vehicle s tati onar y
Let the eng ine run at idle for a few minutes to
cool off, until the ind icator light tu rns off.
- If the indicator light does not turn off, do not continue driving the vehicle. See an author ized
Audi dealer or author ized A udi Se rvice Facility
for assistance.
_& WARNING
- Never open the hood if you ca n see or hear
steam o r coolant escaping from the engine
compartment. This increases the risk of
burns . Wait until you no longer see or hear
steam or coolant escap ing .
- The engine compartment in any veh icle can
be a dangerous area. Stop the engine and
allow it to cool before working in the engine
compartment. A lways follow the informa­
t io n found in
¢ page 304, Working in the
engine compartment.
Coc kpit o ve rv iew
(D Note
Do not continue driv ing if the . indicator
light turns on as this increases the risk of en­
gine damage.
~ -Safety belt
The . indicator light stays on until the dr iver 's
and front passenger's safety belts are fastened .
Above a certa in speed, there will also be a war n­
ing tone.
@ Tips
For additional informat ion on safety belts, re ­
fer to¢
page 245 .
0 Generator/battery
If the . or(•) indicator light t urns on , the re is a
malfunction in the generator or the vehicle e lec­
t rical system .
• Electric al sy stem: malfunction! Saf ely stop
v e hicle
Do not continue dr iving and switch the engine
off . See an authorized Audi dealer or authorized
Audi Se rvice Facility for assistance .
(•j Electrical system: mal function! Re start not
po ssible . Plea se co ntac t Se rvice
Disconnecting the vehicle battery from the elec­
trical system prevents it from d ischarging. Drive
to an authori zed Aud i dealer or authori zed Aud i
Service Facility immed iately .
Do not stop the engine, or you w ill not be able to
start it again. If you can no longer start the en­ gine, see an authori zed Audi dealer or autho riz ed
Audi Service Facility for assistance .
(•) Electri cal system: malfunction! Ple ase con­
tact Se rvice
Drive to an authori zed A udi dealer or authorized
A udi Service Facility immediate ly. Because the ve­
hicle battery is discharging, turn off a ll unneces­
sary electrical equipment such as the rad io. See
your authori zed Aud i dealer or authori zed Audi
Service Facility if the battery charge level is too
~w . ~
31

Driving
Engine automatically r esta rt s
The standard Start/Stop mode will be canceled
during a stop phase in the follow ing situations.
The engine restarts without any action by the driver .
- The vehicle rolls, for examp le while on a slope.
- The inter io r temperatu re differs from the tem-
perature se lected in the A/C system.
- The w indshield is being defrosted.
- The brake pedal is pressed several t imes in a
row .
- The battery charge level becomes too low .
- Power consumption is high .
The engine can turn off again when the condi­
tions for Start/Stop mode are met .
Ignition is swit ched off aut omaticall y
To prevent the battery from dra ining, the ignition
will sw itch off
aut omati cally under the following
conditions:
- T he Sta rt/Stop system has stopped the engine.
- The vehicle must be stationary .
- You left the veh icle and the engine was not re-
started within approximately 30 seconds.
If this happens, you will see the message
I gni ­
tion turn s off automatically in the instrument
cluster and the activated low beams are replaced
by the parking light. The parking lights will
sw itch off after approximately 30 minutes or
when you lock the vehicle .
The ignition also switches off when you lock the
veh icle from the outs ide dur ing a stop phase.
If the Start/Stop system has not turned off the
engine or if you have sw itched the Start/Stop sys­
tem off manually, the ignition will not be auto­
mat ically switched off and the engine w ill cont in­
ue to run~& .
.&, WARNING
To red uce the risk of poisoning, neve r allow
t he engine to r un in confined spaces.
80
-
@ Tips
-If you leave the ve hicle with the D/S or R se­
lector lever position engaged, the parking
brake is automatically set.
- If you select the D or N selector lever posi­
tion after shifting into reverse, the vehicle must be driven faster than 6 mph (10 km/h)
in order for the engine to switch off again.
Manually switching the Start/Stop system
off/on
App lies to: vehicles wit h Start -Stop system
If you do not wish to use the system, you can
switch it off manually.
- -
. !.. r' '!. .:-,/'"~ ~
tJ .,. -,J
-----::::I
F ig . 81 Cen te r conso le: S tart/Stop system butto n
..
.,. To switch the Start/Stop system off/on man­
ually, press the
l (A) "'I button . The LED in the but­
ton turns on when the system is switched off.
(l} Tips
If you switch the system off during a stop
phase, the engine will start again automati­
cally.
Messages in the instrument cluster display
App lies to: vehicles wit h Start-Stop system
St art- stop system: de activated . Please
restart engin e manually
This message appears when spec ific conditions
a re not met during a stop phase . The S tart/Stop
system will
not be ab le to res tart the eng ine . The
engine m ust be sta rted with t he
I STAR T ENGINE STOP! button. ....

Automatic start /stop syst em: malfunct ion!
F unction una vailabl e. Please contact Ser vic e
There is a malfunction in the Start/Stop system .
Drive the vehicle to an authorized Audi dealer or
authori zed Service Facility as soon as possible to
have the malfunction corrected.
Electromechanical
parking brake
Operating
The electromechanical parking brake replaces
the hand brake.
Fig. 82 Center co nsole: parking brake
"'Pull the(®) ~ fig. 82 sw itch to set the park ing
brake . The LED in the switch illuminates . The
- (USA models)/ . (Canada models) a lso
turn on in the instrument cluster display
Q page 82, Starting from a stop .
"'To release the parking brake, press the brake or
accelerator pedal while the ignition is switched
on and press the button at the same time(®).
The LED in the button and the indicator light in
the display turn off.
Your vehicle is equipped with an electromechani­
cal parking brake . The parking brake is designed
to prevent the vehicle from rolling unintentional­
l y and replaces the hand brake .
In addition to the normal functions of a tradi­
tional hand brake, the electromechanical parking brake provides various convenience and safety
functions .
Emerg enc y braking function
The emergency braking fu nction ensures that the
vehicle can be slowed down even if the
standard
D rivi ng
brakes ma lfunction Q page 82, Emergency
braking function.
.&_ WARNING
-
- Do not press the acce lerator pedal inadver-
tently when the vehicle is stationary, the en­
gine is running and a gear is selected. Oth­
erwise, the vehicle will start to move imme­
diate ly and this could result in an accident .
- If the power supply fails, you cannot set the
parking brake if it is released . In this case,
park the veh icle on leve l ground and secure
it by p lac ing the selector leve r in the P posi­
tion. See an authorized A udi dealer or au ­
thorized A udi Se rvice Fa cil ity for assis tance.
(D Tips
- Occasional noises when the parking brake is
set and released are normal and are not a
cause fo r concern.
- The pa rking brake goes through a self-test
cy cle at regu lar inte rvals when the vehicle is
stopped . Any no ises asso ciated wi th th is are
normal.
- If there is a powe r failure, the parki ng brake
canno t be set if it is rele ased, and i t will not
re lease if it is set ~& . See an a uthorized
Audi dealer or authorized Audi Service Fa­
cility for assistance.
- If the parking brake is malfunctioning, the
LED in the
C® button blinks . It may not be
possible to set the parking brake . If the
park ing brake is set, use the hill start assist
to release it
Q page 82
Parking
.,. Press the brake pedal to stop the veh icle.
.,. Pull the
C® switch to set the parking b rake .
.,. Select the P se lector lever position .
.,. Switch the engine off
Q _&. .
.,. Turn the steering w heel when par king o n in­
clines so that the wheels w ill roll into the cu rb
if the vehicle starts moving .
81

Driving
A WARNING
-Always switch th e ignit ion off and take the
vehicle key with you when leav ing the veh i­
cle, eve n for a short per iod of t ime . This ap­
plies particularly when chi ld ren remain in
the ve hicle. Othe rwi se, children coul d sta rt
the engine, re le ase the p arki ng bra ke o r op­
er ate ele ctrica l equipmen t such as power
windows, which increases the risk of an acci ­
dent.
- When the vehicle is loc ke d , no one -particu ­
larly not children -sho uld rema in in the ve­
hicle . Locked doors make it more difficult
f or eme rgency workers to get into the vehi­
cle, which p uts lives at risk.
Starting from a stop
The hold assist function ensures that the parking
brake releases automatically when the vehicle
starts moving .
Stopping and setting the parking brake
" Pull th@(®) switch to s@t th @ parking bra k@ .
Starting and automat ically releasing the
parking brake
" When you pr ess t he accelerator pedal, the
par king b rake is autom atically released and
yo ur vehicle begins to move.
T he parki ng b rake c an be set if you must s top the
ve hicl e at a stop lig ht or in t raff ic. Th e ve hicle
does not have to be he ld with the brake pedal.
The parking brake e liminates the tendency to
creep when a selector lever position is engaged .
The par king b rake releases automatica lly and the
ve hicle beg ins to move as soon as you press the
accelerator pedal as usual.
Starting on hills
When starting on hills, hill start assist prevents
the vehicle from un intent iona lly rolling back. The
braking force of the parking brake does not re­
lease until the wheels bu ild up enoug h driving
force.
82
(D Tips
Fo r safety reasons, the par king brake only re­
l eases automatically when the drive r's door is
closed.
Starting to drive with a trailer
To prevent rolling back unintentionally on a hill,
do the following:
.. Keep the(®} switch pulled and press the acce l­
erator pedal. The parking brake remains set
and prevents the ve hicle from roll ing backwar d.
.. You can release the<®> switch once you a re sure
that you are giv ing enough driv ing force to the
wheels by pressing the accelerator pedal.
Depend ing on the weight of t he rig (vehicle and
trailer) and the steepness of the incline, you may
r oll backward as you start.
Emergency braking function
In the event that the standard brake system fails
or locks up.
.. To brake your veh icle in an eme rgency, pull the
<® > switch and ho ld it pulled.
.. As soon as you re lease the <®> switch or acceler-
ate, the braking stops.
P ulli ng and ho ld ing the C®l switch wh ile driving
the ve hicle activates the eme rgency brak ing func­
tion. The ve hicle brakes at all four wheels by acti­
vat ing the braking hydraulics . T he braking effect
i s sim ila r to mak ing a n emergency stop .
Q &
To reduce the risk of act ivat ing the emergency
braking by m istake, an audib le warning tone
(buzzer) sounds w hen the C®l switch is pulled.
Emergency b raking s tops as soon as th e<®>
switch is re leas ed or the ac celerator p eda l is
presse d.
A WARNING
Eme rgen cy braking sho uld only be used i n an
emergency, when the normal brake pedal has
failed or the brake peda l is obst ructed. Using
the park ing bra ke for emergency b raking w ill
~

slow your vehicle down as if you had made a
full braking maneuver. ESC and the associat ­
ed components (ABS, ASR, EDL) cannot over­
come the laws of physics . In corners and
when road or weather conditions are bad , a
full brake application can cause the vehicle to skid or the rear end to swerve, which increas­
es the risk of an accident.
Hill hold assist
Hill hold assist makes it easier to start on hills .
The system is activated when the brake pedal is pressed for a
few seco nds. The vehicle must be in
an uphill direction of travel.
After releasing the brake pedal , the brake power
is held for a
brief moment to prevent the vehicle
from rolling back when starting. During this
time , you can easily begin to
move your vehicle.
& WARNING
- If you did not begin moving immediately af­
ter releasing the brake pedal, the vehicle
could begin to roll backward under certain
conditions . Press the brake pedal or set the
parking brake immediately .
-If the engine stalls, press the brake pedal or
set the parking brake immediately.
- To prevent the vehicle from rolling back un­
intentionally when starting in stop-and-go
traffic, keep the brake pedal pressed for a
few seconds before you start driving.
- Switch the ignition off when you leave the
vehicle, even for a short period of time. Also
set the
parking brake to prevent the vehicle
from rolling unintentionally . This applies
particularly when children remain in the
ve­
hicle, because there is the risk of an acci­
dent .
Automatic transmission
Introduction
The automati c transmission is controlled elec ­
tronically . The transmission shifts up or down au­
tomatically depending on which drive program is
selected .
Driving
When a moderate driving style is used, the
transmission selects the most economical driving
mode. The transmission shifts up at a lower RPM
and shifts down at a higher RPM to improve fuel
efficiency.
The transmission switches to a sporty mode after
a kick-down or when the driver uses a
sporty
driving style
characteri zed by quick accelerator
pedal movements, heavy acceleration, frequent
changes in speed and t raveling at the maximum
speed .
If desired, the driver can also select the gears
manually (tiptronic mode) ¢ page 86.
Selecting selector lever positions
Fig. 83 Selecto r lever
The current selector l ev e r pos ition is shown next
to the selector lever¢
fig. 83 . The current selec­
tor lever position is also shown in the instrument
cluster d isplay .
.,. You may need to release the selector lever lock
depending on which selector lever position is
selected and which one you would like to se­
lect .
.,. To do this, press the locking button (Don the
selector lever¢
fig. 83.
.,. To engage the nearest se lector lever position,
move the selector lever forward/back until you
feel the first pressure point. The selector lever
will return to its original position.
.,. To skip
over one selector lever position, move
the selecto r lever past the pressure point into
the desired position . The selector lever will re­
turn to its original position.
For example, you can skip
over the N position if
you would like to go directly from D into R. ..,.
83