Page 81 of 268

M N 
ci u.. co ...... \!) ..,., 
N ..,., ...... 
When  stopping  at  a traffic  signal  or stopp ing  in 
city  traffic  on vehicles  with  an automatic  trans
miss ion, the  park ing  brake can be applied . T he 
vehicle  does not  have to  be held  with  the  foot 
brake. The parking  brak e eliminates  the  tendency 
to  creep with  a drive  range  engaged . As soon as 
you  dr ive off  as usual , the  parking  brake is re
leased automatically  and the  veh icle  starts  to 
move. 
Starting  on  sl opes 
When  starting  on  inclines,  the  star ting ass ist  pre
vents  the  vehicle  from  unintentionally  rolling  back. The braking  force  of  the  parking  brake  is 
not  released  until  sufficient  driv ing force  has 
been b uilt  up at  the  whee ls . 
(D Tips 
For safety  reasons, the  park ing  brake  is re
leased automatically  only  when  the  dr iver's 
safety  belt  is engaged  in the  buckle. 
Starting  off  w ith  a trailer 
T o prevent  rolling  back  unintentionally  on an in
cline, do  the  following: 
.,.  Keep the  switch@q page 77, fig . 92 pulled 
and depress the  accelerator . The park ing  b rake 
stays applied  and  prevents  the  vehicle  from 
ro lling  bac kward . 
..  You can release the  switc h @ once you are su re 
t h at  you a re developing  enough  driving  force at 
the  whee ls by depressing  the  acce lerator . 
D epending  on the  weight  o f the  r ig  (veh icle  and 
trai ler)  and the  seve rity  of  the  in cli ne, you  may 
roll  backwards  as you  sta rt.  Yo u can prevent  roll 
i n g bac kwards  by ho lding  the  parking  brake 
switch @ pulled out  and acce lerating  -just  as 
you would  when  starting  on  a hill  with  a conven 
tional  hand  brake . 
Driving 
Emergency  braking 
In  the  event  that  the  conventional  brake system 
fails  or locks . 
.. In an emergency,  pull  the  sw itch @ q page 77, 
fig . 92 and continue  to  pull  it  to  slow  your  vehi
cle down  with  the  parking  brake . 
..  As soon as you release the  switch  @ or  accele r-
ate,  the  b ra ki ng  process stops. 
If  you  pull  the  switch  @and hold  it  above a 
speed  of  about  5 mph  (8  km/h),  the  emergency  braking  function  is i nitiated . The vehicle  is b raked 
at  all  fo ur whee ls by act ivati ng the  hydrau lic 
brake system.  The br ake performan ce is s imi la r 
to  maki ng a n emergency  stop 
q &. . 
In  order  not  to  act ivate  the  eme rgency braking  by 
mis take, an aud ib le warn ing tone  (buz ze r) 
sounds when  the  swi tc h @ is p ulled. As soon  as 
the  switch @ is re lease d, or  the acce le rator  pedal 
is depressed,  emergency  braking  stops. 
A WARNING 
= 
Emergency braking should on ly be used in an 
emergency,  when  the  norma l foot  brake  has 
failed  or  the  brake  peda l is obstructed.  Us ing 
the  parking  brake to  perfo rm  emergency  brak
ing will  slow  your  vehicle  down  as  if you  had 
made  a full  bra ke application . T he laws of 
physics cannot  be suspended  ev en with  ESC 
and  its  a ssociated  components  (A BS, ASR, 
E DS).  In  co rners  and  when  road o r we ather 
conditions  are ba d, a f ull brake applica tion 
can cause the  ve hicl e to  skid o r the  rear end to 
b reak away  -risking  an accident. 
Speed  warning  system 
Overview 
The speed  warning sys tem  helps you  to  keep your 
driving speed  below  a set  speed  limit. 
The speed warn ing system  warns  if  the  driver  ex
ceeds a previous ly s tored  maximum  speed. A 
warning  tone  will  sound  as soon  as the  veh icle 
speed exceeds the  set speed  by about  3  mph 
(3  km/h) . At  the  same time,  a warning  symbo l 
79  
         
        
        
     
        
        Page 82 of 268

Driving 
appears  in the  display . The  symbol's  appearance 
m ight  be  diff erent  in some  models. 
The speed  warning  system  has  two  warn ing 
thresholds  that  function  independently  of  each 
other  and  that  have  somewhat  different  purpos 
es: 
Speed warning 1 
You ca n use  speed  wa rning  1 to  set  the  maximum 
speed  while  yo u are  driving.  This setting  w ill re
main  in effect  unt il you  tu rn 
off the  ignition , as 
suming  that  you  have  not  c hanged  or  reset  the 
setting . 
The . (USA models)  /.  (Can ada  mode ls) 
speed  war ning  symbol  in the  wa rni ng 
1 display 
appears  when  you  exceed  the  maximum  speed. 
It 
goes  o ut  when  the  speed  fa lls  below  the  stored 
maximum  speed. 
The  speed  wa rning  symbo l w ill also  go  out  if the 
speed 
exceeds t he  stored  maximum  speed  by 
mo re  tha n about  25  mp h 
(40 km/h)  for  at  least 
10  seconds.  The  stored  maximum  speed  is de let 
ed. 
Speed warn ing 2 
S toring  wa rn ing  2  is recommended  if you always 
want  to  be  reminded  of  a  certain  speed,  for ex 
ample  when  you  are  trave ling  in a  co unt ry that 
has  a genera l maxim um  speed  limit,  or  if you  do 
not  want  to  exceed  a specified  speed  for  w inter 
tires . 
The . (USA models) 
I. (Canada  mode ls) 
speed  warn ing  2 symbo l appears  in the  disp lay 
when  yo u exceed  the  stored  speed  limit.  Unlike 
warn ing  1,  it will  not  go  out  until  the  veh icle 
speed  d rops  be low the  stored  speed  limit . 
Sett ing  speed  warning  2 
c::> page  80. 
(D) Tips 
Even tho ugh  your  vehicle  is equip ped  with  a 
spee d war ning system,  you  s ho ul d  still  watch 
the  speedometer  to  make  sure  you  are  not 
driving  faster  than  t he speed  limit. 
80 
Speed warning  1:  setting  a  speed limit 
Warning  threshold  1 is set  by the ISETI button . 
Fig. 9 3 SE T button  in  the  instru men t cl uster 
Storing  the  maximum  speed 
.,.  Dr ive at  the  desi red  maximum  s peed . 
.,.  Press  t he 
ISE TI but ton  in the  ins trumen t panel 
disp lay ¢ 
fig.  93 for 1 second . 
Resetting  the  maximum  speed 
.,. Dr ive the  veh icle  at  a  speed  of  at  leas t 3 mph 
(5 km/h) 
.,.  Press  the 
~ 1s =ET= I button  fo r more  t han 2 seconds. 
The . (USA models)/ . (Canada  models) 
speed  warning  symbo l wi ll appea r briefly in  the 
display  when  you  release  the 
ISE T! bu tton  to  i ndi
cate  tha t the  m axim um speed  has  been  stored 
successfully. 
The  maxim um speed  r ema ins  stored  until  it  is 
c h anged  by pressing  the 
ISE TI b ut ton  aga in brief 
l y or  until  it  is deleted  by a  lengthy  push  o n the 
bu tton. 
Speed warning 2: setting  a speed limit 
The radio or  MMI* control  unit  is used  to set, 
change  or dele te warning  threshold 
2. 
.,.  Select : ICAR ! function  b utton> Instrument 
cluster  > Speed warning . 
Or 
.,. Select: I CAR I func tion  button  > Car sy stem s* 
contro l bu tton  > Dri ver a ssist>  Speed warning. 
Warning  threshold  2  can  be  set  in the  speed 
r ange  starting  from  20  mph  to  150  mph  (30  km/ 
h  to 
2 4 0 km/h) . Se ttings  can  eac h be  ad justed  in 
intervals  o f 6  mph  (10  km/h) .  
         
        
        
     
        
        Page 83 of 268

M N 
ci LL co 
rl I.O 
"' N 
"' rl 
Cruise  control  system 
Switching  on 
The cruise control  system  makes  it  possible  to 
drive  at  a constant  speed starting  at  20  mph  (30 
km/h) . 
0 
f 
®t 
0 
Fig. 94 Control  lever  with  push-bu tton 
Fig.  95 Display : Selected  speed 
al M 0 ± 
ti 
~ 0 er: a, 
"' 
• Pull  the  lever  to  position (D ¢ fig.  94 to  switch 
the  system  on. 
•  Drive at  the  speed  to  be  controlled. 
•  Press  button  @to set  that  speed. 
The  stored  speed  and  the  green  symbol 
[lj;(i )~i4 (US model)/ l'I (Canadian  model)  are 
shown  in the  display ¢ 
fig. 95. The  display  may 
vary,  depending  on  the  type of display  in your  ve
hicle . 
The speed  is  kept  constant  by modifying  engine 
power  or  through  an  active  brake  intervention. 
A WARNING 
-Always  pay attention  to the  traffic  around 
you when  the  cruise  control  is in operation. 
You are  always  responsible  for  your  speed  and  the  distance  between  your  vehicle  and 
other  vehicles. 
Driving 
- For reasons  of safety , cruise  control  should 
not  be  used  in the  city, in stop-and-go  traf
fic,  on  twisting  roads  and  when  road  condi
tions  are  poor  (such  as  ice,  fog,  gravel,  heavy  ra in and  hydroplaning)  - risk of  acci
dent . 
- Turn  off the  cruise  control  temporarily  when  entering  turn lanes , highway  exit  lanes  or in 
construction  zones. 
- Please  note  that  inadvertently  "resting"  your  foot  on  the  accelerator  pedal  causes 
the  cruise  control not  to  brake.  This is  be
cause  the  cr uise  control  is  overridden  by  the 
driver's  accele rat ion. 
- If a  brake  system  malfunction such  as  over
heating  occurs  when  the  cruise  control  sys
tem  is switched  on,  the  braking  function  in 
the  system  may be switched  off . The other 
cruise  control  functions  remain active  as 
long  as  the  ind icator 
light til;rnM4 (US mod
els) 
t l'I (Canadian  models)  is on. 
(D Tips 
The  brake  lights illuminate  as  soon  as  the 
brakes  apply  automatically. 
Changing  speed 
• To increase/decrease  the  speed in incremen ts, 
tap  the  lever  in  the 
(£)10 direction ¢ page  81, 
fig . 94 . 
"'To  increase/decrease  the  speed  quickly,  hold 
the  lever  in the 
010 direct ion  until  the  de
sired  speed  is displayed. 
You can  also  press  the  accelerator  pedal  down  to  increase  your  speed,  e.g . if you  want  to  pass 
someone . The  speed  you  saved  earlier  will  re
sume  as  soon  as  you  let off  of  the accelerator 
pedal. 
If,  however,  you  exceed  your  saved  speed  by 
6  mph  (10  km/h)  for longer  than  5 minutes,  the 
cruise  control  will be turned  off  temporarily . T he 
green  symbo l in the  display  turns  white.  The 
saved  speed  remains  the same . 
81  
         
        
        
     
        
        Page 84 of 268

Driving 
Presetting  your  speed 
You  can preset  your  desired  speed  while  the vehi
cle is not  moving  . 
.,. Switch  on  the ignition  . 
.,.  Pull  lever  in to  pos ition 
(D c> page  81,  fig . 94  . 
.,. Press  the  lever  in the 0 or O direction  to  in -
crease  or  decrease  your  speed  . 
.,.  Re lease  the  lever  to  save  that  speed. 
This  function  makes it  possible,  for  example,  to 
save  the  speed  you  want  before  driving  on  the 
h ighway . Once  on  the  highway,  act ivate  the  cruise 
con trol  by pulling  the  leve r toward 
(D . 
Switching  off 
Temporar y deactivation 
.,. Press  the  bra ke  peda l,  or 
.,.  Press  the  lever  i nto  pos ition @ (not  clicke d  into 
place) 
c> page  81,  fig.  94, o r 
.,.  Drive for  longer  than S minutes  at  more  than 
6 mph (10 km/h)  above the stored  speed. 
Switching off completely 
.,. Press  leve r into  posi tion @(clic ked  into  p lace), 
o r 
.,.  Switc h the  ignition  off. 
The speed  you  saved  w ill be  retained  if  the  c ruise 
con trol  has  been  sw itched  off  temporar ily. To re
sume  the  saved  speed,  let  up  on  the  brake  and  pu ll  the  lever  to  position 
(D. 
Sw itchi ng  the  ign ition  off  e rases  the  saved  speed . 
_& WARNING 
You should  only  return  to  the  saved  speed  if it 
is  not  too  fas t for  the  current  traffic  cond i
tions  -risk  of  an  accident! 
82  
         
        
        
     
        
        Page 85 of 268

M N 
ci u.. co ,...., \!) 1.1'1 
N 1.1'1 ,...., 
Automatic  transmission 
multitronic,  S  tronic, 
tiptronic 
Introduction 
Appl ies to vehicles:  with  multitronic/5  tronic/tiptronic 
The automatic  transmission is controlled  elec
tronically.  The transmission  upshifts  or  down
shifts  automatically  depending on which drive 
program  is se lected. 
When  a 
moderate driving  style is used, the 
transmission  selects  the  most  economica l driving 
mode.  It  will  then  change up  early  and delay the 
downshifts  to  give better  fuel  economy . 
The transmission  switches  to  a sporty  mode  after 
a kick-down  or when  the  driver  uses a 
sporty  driv
ing  style 
characterized  by quick  accelerator  pedal 
movements,  heavy acceleration,  frequent 
changes  in speed and traveling  at  the  maximum 
speed . 
If  desired,  the  driver  can also se lect the  gears 
manually (tiptronic  mode) q page 83. 
Various automatic  transmissions may be instal
led,  depending  on the  model: 
multitronic  transmission 
The  multitronic  transmission  is a continuously 
variable  transmission.  Power  is transferred  using 
a  mu ltidisk  clutch.  In  contrast  to conventional 
automatic  transmissions  using shifting  opera
tions,  the  transmission  ratio  in the  continuously 
variable  transmission  is changed  continuous ly. 
This optimi zes the  comfort  level and conserves 
fuel. 
S tronic  transmission 
The 5 tronic  is a  dual-clutch transmission.  Power 
is transferred  using two  clutches  that  work  inde
pendently  from  one another.  They replace the 
torque  converter  used in conventional  automatic 
transmissions  and allow  the  vehicle  to  accelerate 
without  a  noticeable  interruption  in traction . 
tiptronic transmission 
In  the  tiptronic  transmission,  power is transfer
red by a torque  converter. 
Automatic  transmission 
Selector  lever  positions 
Applies  to  vehicles:  with  multitronic/S  tronic/tiptronic 
Fig. 96 Disp lay  in  the  instrument  cluster:  selec tor  lever  in 
position  P 
T he selector  lever  position  engaged  appears  next 
to  the  se lector  lever  as well  as in  the instrument 
cluster  display. 
P  -Park 
In  this  se lector  lever  position  the  transmission is 
mechanically  locked . Engage P  only when  the  ve
hicle  is 
completely  stopped~.&.  in Driving  the 
automatic  transmission  on page 86. 
To shift  in or  out  of posit ion  P, you  must first 
press  and hold  the  brake pedal and then press 
the  release button  in the  selector  leve r handle 
whi le moving  the  selector  lever to  or  from  P. You 
can shift  out  of  this  position only  with  the  igni
tion  on. 
R  - Reverse 
Select  R only  when  the vehicle  is  at  a full stop 
and  the engine  is  running at  idle speed~ .&. in 
Driving  the  automatic  transmission  on 
page  86 . 
Before you  move  the selector  lever  to R, press 
both the  release  button in the hand le  of  these
lector  lever 
and the  brake  pedal at the  same 
time . 
When  the  ignition  is  on, the  backup  lights illumi
nate  when  the selector  lever  is moved  into  R. 
N -Neutral 
The transmission  is in  neutral  in this  position . 
Sh ift  to  this  position  for  standing  with  the  brakes 
applied 
~ .&. in Driving  the automatic  transmis-
sion on  page 86.  .,. 
83  
         
        
        
     
        
        Page 86 of 268

Automatic  transmission 
When  the  vehicle  is  stationary  or  at  speeds  below 
1  mph  (2  km/h),  you  must  always  apply  the  foot
brake  before  and  while  moving  the  lever  out  of  N. 
DIS -Normal  position  for  driving  forward 
In the  D/S position,  the  transmission  can  be  oper
ated  either  in the  normal  mode  Dor in the  sport 
mode  S . To select  the  sport  mode  S,  pull these
lector  lever  back  brief ly. Pulling  the  lever  back 
again  will  se lect  the  normal  mode  D . The  inst ru
ment  cluster  display  shows  the  selected  driving 
mode. 
In  the 
normal  mode D , the  transmission  auto
matically  selects  the  suitable  gear  ratio . It  de
pends  on  engine  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. 
When  the  vehicle  is stationary  or  at  speeds  below  1  mph  (2  km/h), you  must  a lways  apply  the  foot 
brake  before  and  while  moving  the  lever to  D/S 
out  of  N. 
A WARNING 
Read  and  follow  all  WARNINGS¢.&. in  Driv
ing the  automatic  transmission  on 
page  86. 
(D Note 
Coast ing  downh ill with  the  transmission  in  N 
and  the  engine  not  running will result  in  dam
age  to the  automatic  transmission  and  possi
bly the  catalytic  converter. 
@ Tips 
- On vehicles  with  drive  select* , you  can  ad
just  the  sporty  sh ift  characteristics  in  the 
Dynamic driving  mode .Swill  appear  in the 
instrument  cluster  display  instead of  D. 
-If you  accidentally  select  N while  driving, 
take  you r foot  off the  accelerator  pedal  im
mediately  and wait for  the  engine to  slow 
down  to  idle before  selecting  D/S. 
84 
-If there  is a  power  fai lure,  the selector  lever 
wi ll not  move  out of the  P position.  The 
emergency  release  can  be  used  if this  hap
pens ¢ 
page  89. 
Automatic  Shift  Lock (ASL) 
Applies  to vehicles:  with  mult itronic/5  tronic/tiptron ic 
The Automatic  Shift  Lock safeguards  you  against 
occidentally  shifting  into  a forward  or the  re
verse gear  and  causing  the  vehicle  to move  unin
tentionally. 
Fig. 97 Sh ift  gate:  se lector  lever  lock pos it ions  and  re lease 
button  high lig hted 
The  selector  lever  lock  is released  as  follows: 
.,.  Turn the  ignition  on. 
.,.  Step  on  the  brake  pedal. 
At  the  some  time 
press  and  hold  the  release  button  on  the  side  of 
the  gear  selector  knob¢ 
fig. 97  with  your 
thumb  until  you  have  moved  the  selector  lever 
to  the  desired  position . 
Automatic  selector lever  lock 
The  selector  lever is locked  in the  P and  N posi
tions  when  the  ignition  is turned  on . You must 
press  the  brake  pedal  and  the  release  button  to 
select  another  posit ion.  As a  reminder  to  the 
driver,  the  following  warning  appears  in  the in 
strument  cluster  display when  the  selector  is  in P 
and  N: 
When  stationary  apply  brake pedal  while  select
ing  gear 
The Automatic  Shift  Lock only  functions  when  the 
vehicle  is stat ionary  or  at  speeds  below  1 mph 
(2  km/h).  
         
        
        
     
        
        Page 87 of 268

M N 
ci u.. co ,...., \!) 1.1"1 
N 1.1"1 ,...., 
At  speeds above about 1 mph  (2  km/h)  the  Auto
matic  Shift  Lock is automatically  deactivated  in 
the  N position. 
A  time  delay element  prevents  the selector  lever 
from  locking  when  it is moved through  the  N po
sition  (going  from  R to  D/S). The  locking element 
will  lock the  se lector  lever  if  the  lever is  left  in N 
(Neutral)  for  more  than  approximate ly 2 seconds, 
without  the  brake pedal  being  pressed. 
Release  button 
The release button  on the  selector  lever  prevents 
the  lever  from  being  accidentally  shifted  into cer
tain  positions.  Depending  on the  direction  of  the 
shift,  the  selector  lever  locks at  different  posi
tions.  The positions  are highlighted  in the  illus
tration 
c> fig . 97. 
Ignition  key safety  interlock 
The key cannot  be removed from  the  ignition  un
l ess the  se lector  lever is  in the  P park  posit ion. 
When  the  ignit ion  key  is removed,  the  selector 
lever  will  be locked in  the  P position. 
Driving  the  automatic  transmission 
Applies  to  vehicles:  with  m ultit ron ic/S  tronic/t iptronic 
F ig . 98 S hift gate  on t he center  conso le:  selector  lever w ith 
re lease  button 
Starting  the  engine 
~ The  selector  lever must  be in  P or  N. 
Starting  off 
~ Press and  ho ld the  brake pedal. 
~ Press and  hold  the  release button  in the  selec
tor  lever  handle,  select  the  des ired selector  lev
er posit ion such as D/S and  release the  button. 
Automatic  transmission 
~ Wait  briefly until  the transmission  has shifted 
(you will  fee l a slight  movement). 
~ Remove your  foot from  the  brake  pedal and  ac
celerate. 
Stopping  temporarily 
~ Keep the  vehicle stationary  using  the braking 
pedal,  for  example  at  traffic lights. 
~ Do not  press the  accelerator  peda l when  doing 
this. 
~ To prevent  the  vehicle  from  rolling when  you 
start  driving,  set the  parking  brake when  stop
p in g on steep  inclines 
c> .&_. 
~ The parking  brake will  release automat ically 
and the  vehicle  will  start  mov ing once you  press 
t he acce lerator  pedal. 
Stopping/parking 
If  the  selector  lever  is not  in the  P position  when 
you  open  the  dr iver's door,  the vehicle  could  roll. 
The message 
Transmission:  Car may  roll!  Shift 
to  park! 
appea rs. 
~ Press and hold  the  brake pedal  until  the  vehicle 
has come to  a complete stop . 
~ Apply the parking  brake c:;. page  78,  Parking . 
~ Select the  P selector  lever  posit ion c> .&_ . 
Stopping  on an  incline 
~ Always press the  brake pedal to  hold  the  vehi
cle  in place and prevent  it  from  "rolling  back" 
c:;. .&_ . Do not try  to  prevent  the  veh icle from 
"rolling  back" when  a gear  is engaged by in
creasing the  engine  speed 
c> 0 . 
Starting  on an incline 
~ Activate  the  parking  brake. 
~ With  the  driving  gear  selected,  press the  accel 
erator  pedal  carefully.  The parking  brake w ill re
lease automat ically  if  your  seat  belt  is fastened . 
Under  certain circumstances,  such as driving  in 
the  mounta ins, it  may be useful  to sw itch  tempo
r ar ily  to  the  manual  shift  program  in order  to ad
just  the  gears  to the  dr iv ing  conditions  by  hand 
c>page 87. 
On slopes, activate  the parking  brake first  and 
then  move the  selector  lever to  the  P position . 
85  
         
        
        
     
        
        Page 88 of 268

Automatic  transmission 
This prevents  too  much stress from  being  placed 
on the locking  mechanism. 
Vehicles with  multitronic  transmission:  Your vehi
cle  is equipped  with 
hill  hold  assist allowing  you 
to  start  while  on an incline.  The system  is activat
ed when the  brake pedal  is pressed down  and 
held 
for a few  seconds. The brake pressure will 
hold  for 
a momen t after  the  brake pedal  loosens 
t o preven t the  vehicle  from  rolling  backwards 
while  starting  up . 
A WARNING 
- The vehicle  can also  roll  when  the  engine  is 
stopped . 
- Unintended  vehicle  movement  can cause se rious  injury . 
- Never leave your  vehicle  with  the  engine 
running  while  in  gear. 
If you  must  leave your 
vehicle  when  the engine  is running,  activate 
the  parking  brake and move  the selector  lev
er  to 
P. 
-Power is still  transmitted  to  the  wheels 
when  the  engine  is running  at  idle.  To pre
vent  the vehicle  from "creeping",  you must 
keep  your  foot  on  the brake when the  engine 
is running  and the  selector  lever  is in 0/5  or 
R or  "tiptronic"  mode  is selected. 
- Do not  press the  accelerator  pedal when  changing  the  selector  lever  position while 
the  vehicle  is stationary  and the  engine  is 
running . 
- Never shift  into  R or  P while  driving. 
- Before driving  down a steep  slope,  reduce 
your  speed and shift  into  a lower  gear with 
"tiptronic". 
- Do not  ride the brakes  or  press the  brake 
pedal too  often  or too  long when  driving 
down  a hill.  Constant  braking  causes the 
brakes to  overheat  and  substantially  re
duces braking  performance,  increases brak
ing  distance  or  causes complete  failure  of 
the  brake system . 
- To prevent  the  vehicle  from  rolling  back 
when  stopping  on inclines,  always hold  it  in 
place with  the  brake pedal  or  parking  brake. 
- Never hold  the  vehicle  on an  incline with  a 
slipping  clutch.  The clutch  opens automati-
86 
cally  when  it  becomes too  hot  from  the 
overload.  An indicator  lamo 
[ O ] illuminates 
and a driver  message appears 
¢ page  88 
when  the  clutch  is overloaded. 
- If  the  engine  must  remain  running,  never 
have any driving  position  engaged when 
checking  under  the  hood . Make sure these
lector  lever has securely engaged  and is 
locked  in  P with  the  parking  brake set 
¢ page  195. Otherwise,  any increase in  en
gine  speed may set the  vehicle  in motion, 
even with  the  parking  brake applied. 
(D Note 
- 5 tronic- and tiptronic  transmission:  When 
stopping  on an incline,  do not  try to hold 
the  vehicle  in  place by  pressing the accelera
tor  pedal while  a driving  gear  is selected. 
This  can cause the  transmission  to  overheat 
and can damage  it. Activate  the  parking 
brake or  press the  brake pedal to  prevent 
the  vehicle  from  rolling. 
- 5 tronic- and tiptronic  transmission:  Allow
ing  the  vehicle to  roll  when the engine is 
stopped  and the  selector  lever  is  in N will 
damage the  transmission  because it  is not 
lubricated  under  those  circumstances . 
(D Tips 
For safety  reasons, the  parking  brake is re
leased  automatically  only  when  the  driver's 
safety  belt  is engaged  in the  buckle . 
· Hill descent  control 
App lies  to vehicles: wit h mult itronic/S  tronic/tiptronic 
The hill descent  control system  assists  the  driver 
when  driving down  declines. 
Hill  descent  control  is activated  when  the  selec
tor  lever  is in  0/5  and you  press the  brake pedal. 
The transmission  automatically  selects  a gear 
that  is suitable  for  the  incline.  Hill  descent  con
trol  tries  to  maintain  the  speed achieved at  the 
time  of  braking,  within  physical and technical 
limitations. 
It may still  be necessary to  adjust  the 
speed with  the  brakes.  .,.