
Operation
Brakes Wear
The rat
e of
wear of the brake pads depends
on the driving style and on the way in which
the vehicle is used. The brake pads will wear
more quickly if you use your vehicle frequent-
ly in urban traffic and short trips or drive in a
sporty style. Under these demanding condi-
tions, visit your specialised service, even be-
fore the scheduled service date, so that the
thickness of the brake pads can be meas-
ured.
Wet roads or road salt
If brakes are wet or frozen, or if you are driv-
ing on roads which have been gritted with
salt, braking power may set in later than nor-
mal. Dry the brakes as soon as possible by
braking repeatedly.
Corrosion
Long periods of inactivity and little use can
lead to rust on the brake discs and dirt on the
brake pads. Where the brake system is sub-
jected to light stress or in the case of corro-
sion, clean the brake discs by braking fully
several times at a high speed.
Brake system fault
If you notice that the braking distance sud-
denly increases and the brake pedal can be
pressed down more fully, there may be a fault in the brake system. Visit a specialised serv-
ice immedi
at
ely and adjust your driving style
to the extent of the damage and to limit the
effect of the brakes.
Low brake fluid level
Insufficient brake fluid could cause faults in
the brake system. The brake fluid level is con-
trolled electronically ››› page 153, Control
lamp.
Brake servo
The brake servo supplements the pressure
you exert on the brake pedal. The brake servo
only works when the engine is running.
Handbrake Fig. 175
Centre console: handbrake. Applying the handbrake
– Pull the handbrake lever up all the way. Releasing the handbrake
– Pull the handbrake lever up slightly and
pr e
s
s the unlock button at the same time
››› Fig. 175.
– Keep the button pressed down and push
the lever al
l the way down.
Control lamp
The warning lamp lights up when the hand-
brake is applied with the ignition on .
Additionally, driving the vehicle at speeds ex-
ceeding 6 km/h (4 mph) for at least 3 sec-
onds produces an audible warning.
The informative display indicates: Release the handbrake!
Braking and stability systems Electronic
Stability Control (ESC) The ESC system increases control of the vehi-
c
l
e in emer
gency situations, e.g. during a
sudden change in direction. Depending on
the driving conditions, it reduces the risk of
skidding and increases driving stability.
The system uses the steering wheel angle
and road speed to calculate the changes of
direction desired by the driver, and constant-
ly compares them with the actual behaviour
of the vehicle. When irregularities occur, for
154

Driving
example, if the vehicle begins to skid, the
E SC
br
akes the appropriate wheel automati-
cally.
The warning lamp on the general instru-
ment panel starts flashing when the system
is working.
The stability (ESC) system includes the fol-
lowing systems:
● Anti-lock brake system (ABS),
● Traction control system (TCS),
● Electronic differential lock (EDL),
● Hydraulic brake assist system (HBA),
● Hill hold control (HHC).
The ASR should be sw
itched on at all times.
Only under certain circumstances should the
system be switched off, e.g.
● driving with chains,
● driving in deep snow or on very soft surfa-
ces,
● D
uring the “swinging movement” required
to remo
ve a stuck vehicle
Switch the ASR back on as soon as possible.
Brake assist system (HBA)*
The HBA system is activated when you press
down on the brake pedal suddenly. It increa-
ses braking power, helping to reduce braking
distances. To reduce braking distance as
much as possible, keep the brake pedal pressed down firmly until the vehicle comes
to a st
andstill.
With the help of this system, the ABS is acti-
vated more quickly and more efficiently.
The brake assist function is deactivated auto-
matically when the brake pedal is released.
Hill hold control (HHC)*
The HHC system makes it easier to start the
vehicle on hills. The system maintains the
brake pressure created by pressing down on
the brake pedal for 2 seconds after it has
been released. Your foot can be removed
from the brake pedal and you can use the ac-
celerator pedal and move away on a hill with-
out having to use the handbrake. The brake
pressure drops as the accelerator pedal is
pressed. If the vehicle cannot be started, it
will start to move backwards after 2 seconds.
The HHC is activated on gradients of over
5%, if the driver door is closed. It only works
for starting on hills, moving both forward and
in reverse. It is not activated during start-up
down hill.
Control lamp
If the control lamp flashes, the ESC is
working.
If the warning lamp illuminates on igni-
tion, the ESC system may have switched off
due to technical reasons. Turn off the ignition and turn it on again. Upon switching on the
ignition again, if the w
arning lamp has
switched off, this means the ESC is function-
ing correctly again.
If the warning lamp is illuminated there is
a fault in the ESC.
The informative display indicates:
Report No.: electronic stability
control (ESC)
or Report No.: Traction control
system (ASR)
Go to a technical service. Note
If the battery is disconnected and connected
again, the y
ellow warning lamp lights up
when the ignition is switched on. This warn-
ing lamp must switch off after covering a
short distance. Anti-lock brake system (ABS)
The ABS system prevents the wheels locking
durin
g br
ak
ing. This helps the driver keep
control of the vehicle.
The driver is made aware of ABS assistance
by the pulsating of the brake pedal and a
characteristic noise. »
155
Technical data
Advice
Operation
Emergencies
Safety

Operation
Keep the brake pedal pressed down while the
ABS i
s
working. The ABS will switch off when
the brake pedal is released. Never brake in-
termittently while the ABS is working!
Control lamp
If the warning lamp is illuminated, there is
a fault in the ABS.
The informative display indicates:
ABS fault
The brake system alone is operational in the
vehicle, without ABS.
Go to a technical service. WARNING
● If the w
arning lamp illuminates together
with the ››› page 153 warning lamp, ,
stop the vehicle! Go to a technical service.
● A fault in the Anti-lock brake system (ABS)
can le
ad to longer braking distances – Risk of
accident! Anti-slip regulation of the driving
wheel
s
(ASR)
*If the wheels start to slip, the TCS adapts the
en
gine s
peed t
o the driving conditions. Par-
ticularly in unfavourable conditions, the TCS
helps starting, accelerating and hill starts. If the control lamp
flashe
s, the ASR is
working.
If the warning lamp illuminates on igni-
tion, the TCS system may have switched off
due to technical reasons. Turn off the ignition
and turn it on again. Upon switching on the
ignition again, if the warning lamp has
switched off, this means the TCS is function-
ing correctly again.
If the warning lamp remains illuminated,
there is a fault in the TCS.
The informative display indicates:
Report No.: Traction control
system (ASR)
Go to a technical service.
Electronic differential lock If one of the wheels starts to skid, the EDL
br
ak
e
s that wheel, transmitting the driving
force to the other wheels. This increases ve-
hicle stability and improves driving stability.
To prevent the disc brake of the braking
wheel from overheating, the EDL cuts out au-
tomatically if subjected to excessive loads.
The vehicle will continue to function normally
without EDL. The EDL will switch on again au-
tomatically when the brake has cooled down. Manual gearbox
Changin
g gears Fig. 176
Gear shift diagram of a 5- or 6-speed
m anual
g
earbox Read the additional information carefully
› ›
›
page 34
When changing gear, always depress the
clutch pedal fully and keep it pressed down
to avoid excessive clutch wear.
In order to drive at an optimum RPM, follow
the gear change indications ›››
page 25.
Engage reverse gear only when the vehicle is
stopped. On engaging reverse gear while the
engine is running, first wait a moment with
the clutch pedal pressed down fully to limit
gear shift noise.
The reverse lights switch on when the reverse
gear is selected and the ignition is on.
156

Driving
WARNING
Never engage reverse gear when moving for-
war d. Ri
sk of accident! Note
Do not rest your hand on the gear lever while
drivin g.
The pressure of your hand could lead
to premature wear of the gear system. Automatic gearbox
Ba s
ic information The gearbox changes up and down automati-
c
al
ly
. The gearbox can be set to Tiptronic
mode. The gears can be changed manually in
this mode ›››
page 159.
The engine can only be started in positions P
or N. If, on engaging the steering lock,
switching the ignition on/off or starting the
engine, the selector lever is not in these posi-
tions, the informative display will show Move
the selector lever to position
P/N! , or
P/N is shown on the general
dash panel display.
At temperatures below -10°C (14°F), the en-
gine can only be started in position P.
Move the selector lever to position P when
parking the vehicle on a flat surface. On a
slope, the handbrake should be firmly ap- plied before moving the selector lever to the
park po
sition. This reduces the load on the
lock mechanism while making it easier to
move the selector lever from position P.
If, while the vehicle is moving, the selector
lever is accidentally moved to position N, re-
lease the accelerator and wait for the engine
to idle before moving it back into position. WARNING
● Never pr e
ss the accelerator when selecting
the automatic gearbox operating mode when
the vehicle is stationary. Risk of accident!
● Never move the selector lever to positions
R or P when driving. Ri
sk of accident!
● If the vehicle is to be stopped with a gear
selected and the en
gine idling (e.g. waiting
or moving slowly at traffic lights), press down
on the brake pedal because the transmission
is not entirely interrupted when the engine is
idling and the vehicle will tend to start mov-
ing.
● Apply the handbrake firmly and put the se-
lector l
ever in position P before opening the
bonnet and working on the vehicle with the
engine running. Risk of accident! Strictly fol-
low the safety instructions ››› page 202, En-
gine compartment.
● When stopping on a slope (hill), try not to
stop the
vehicle from moving by pressing the
“accelerator” with a gear selected. This could
overheat the clutch. If the clutch risks being
burnt due to this force, it would switch off and the vehicle could move backwards. Risk
of ac
c
ident!
● If you have to stop on a hill, press down on
the brake ped
al to stop the vehicle from mov-
ing.
● The drive wheels could lose traction on a
slipper
y road surface when the kick-down
function is activated. Risk of sliding! CAUTION
● In D SG aut om
atic gearboxes, the double
clutch is protected from overloads. If the hill
hold control is used, the clutches are subjec-
ted to greater force if the vehicle is at a
standstill on a slope or suddenly accelerating
on a slope.
● Should the clutches overheat, the sym-
bol i
s shown on the informative display with
a warning message Gear overheated.
Stop! Instruction Manual! An audible
warning is also heard. Stop the vehicle in this
case, stop the engine and wait until the sym-
bol has switched off. Danger of damage to
the gearbox! You can continue driving once
the symbol is switched off. Starting and driving
Starting
– Press and hold the brake pedal.
– Press and hold the interlock button on the
sel ect
or l
ever knob and move the selector »
157
Technical data
Advice
Operation
Emergencies
Safety

Operation
lever to position ››
› page 158 before releas-
ing the interlock button.
– Release the brake and press the accelera-
tor.
St
opping
– The selector lever does not have to be
moved t
o position N if the vehicle is stop-
ped for a short period, e.g. at intersections.
Applying the brake is enough. However, the
engine must remain idling.
Parking
– Press the brake pedal.
– Apply the handbrake.
– Press the interlock button, move the selec-
tor lev
er to position P and release the but-
ton.
Kick-down feature
The kick-down feature allows maximum ac-
celeration to be reached.
In any gear programme, press down fully on
the accelerator for the automatic gearbox to
activate the kick-down feature. This function
takes priority over the gear programmes with-
out taking into account the position of the se-
lector lever (D, S or Tiptronic) and is used to
reach maximum acceleration, using full en-
gine power. Depending on the road speed
and engine speed, the automatic gearbox shifts down and the vehicle accelerates. It
only shif
ts up after the maximum engine
speed has been reached.
Selector lever positions Fig. 177
Gear selector lever Fig. 178
Informative display: selector lever
po s
ition
s. Read the additional information carefully
› ›
›
page 35 The current position of the selector lever is
shown on the gener
al instrument panel dis-
play 1
› ››
Fig. 178
.
P – Parking position
In thi s
po
sition, the driven wheels are me-
chanically locked.
The parking position can only be selected
when the vehicle is stationary.
If you want to move the selector lever from
this position, press the interlock button on
the selector lever knob while pressing down
on the brake pedal.
If the battery is drained, the selector lever
cannot be moved from position P.
R – Reverse gear
R ev
er
se gear must be engaged only when the
vehicle is stationary and the engine is idling.
To move the selector lever to position R from
positions P or N, press the interlock button
on the selector lever knob and press down on
the brake pedal.
The reverse lights come on when the selector
lever is in position R and the ignition is on.
N – Neutral (idling)
Neutr al
(idlin
g) is engaged in this position.
To move the selector lever from position N (if
the lever has remained in this position for
158

Driving
more than 2 seconds) to position D or R at
s peed
s
of less than 5 km/h (3 mph) and
when the vehicle is stationary, press down on
the brake pedal.
D – Drive (forwards)
In thi s
po
sition, the gearbox automatically
changes to a lower or higher gear, depending
on engine requirements, the driving speed
and the gear shift programme.
To move the selector lever to position D from
position N at speeds of less than 5 km/h (3
mph) and when the vehicle is stationary,
press down on the brake pedal.
In some situations (e.g. on mountain roads or
when towing a trailer or caravan), it can be
advantageous to switch temporarily to the
manual shift programme ››› page 159 so that
the gear ratios can be selected manually to
suit driving conditions.
S – Sports driving position
Shif tin
g up l
ater than usual makes full use of
the engine power. This shifts down earlier in
relation to position D.
To move the selector lever to position S from
position D, press the interlock button on the
selector lever knob. Tiptronic
Fig. 179
Selector lever: Tiptronic. The Tiptronic gearbox allows the driver to
c
h
an
ge gears manually using the selector
lever.
Activating the manual gearbox
– From position D, push the sel
ector lever to
the right. The selected position of the se-
lector lever is shown on the general instru-
ment panel display together with the gear
engaged 1
› ›
› Fig. 178
.
Shifting up – Push the selector lever gently forwards + ›››
Fig. 179.
Shiftin g do
wn
– Push the selector lever gently backwards
-
› ›
› Fig. 179
. The manual gearbox can be activated when
the vehic
le is either moving or stationary.
When accelerating, the gearbox automatical-
ly shifts up shortly before the maximum en-
gine speed is reached.
On shifting up, the gear is only engaged
when there is no risk of engine damage.
When the accelerator pedal is pressed down
to the kick-down zone, the gearbox will shift
down in line with the road speed and engine
speed. Note
The kick-down function is also available in
manua l
shift mode. Selector lever lock
Automatic selector lever lock
The sel ect
or l
ever is locked in the positions P
and N when the ignition is on. Press down on
the brake to unlock it. Remember, if the se-
lector lever is in positions P and N, the warn-
ing lamp will light up on the general in-
strument panel.
When the selector lever merely moves
through position N (e.g. when moved from R
to D), the lever lock is not applied. This
makes it possible, for example, to rock a
stuck vehicle backwards and forwards. The »
159
Technical data
Advice
Operation
Emergencies
Safety

Operation
lock is only applied if the brake is not press-
ed and the sel ect
or l
ever is moved to position
N for more than 2 seconds.
The selector lever only locks when the is vehi-
cle stationary or driving at a speed lower
than 5 km/h (3 mph). At a higher speed, it
automatically disconnects in the N position.
Interlock button
The interlock button on the selector lever
knob prevents the driver from inadvertently
engaging a gear. Press the button to unlock
the selector lever.
Safety interlock for ignition key 1)
After switching off the ignition, you can only
remove the ignition key if the selector lever is
in position P. When the ignition key is re-
moved, the selector lever is locked in posi-
tion P.
Driving programmes Your vehicle is equipped with an electronical-
ly
-c
ontr
olled automatic gearbox. Shifting up
or down depends on the programme selec-
ted.
For a calm driving style, the gearbox uses the
most economic programme. The gearbox shifts up as quickly as possible and shifts
down as
late as possible, thus increasing
driving economy.
With a sporty driving style , characterised by
sudden acceleration, heavy acceleration,
speeds that often increase and decrease and
maximum speed, the gearbox adapts to this
driving style when the accelerator is pressed
down fully (kick-down) by shifting down as
quickly as possible and can even shift down
by several gears at once.
Selecting the best driving programmes is an
endless job. Regardless of this, the driver can
also make the gearbox switch to a more dy-
namic gear shift programme by pressing the
accelerator quickly. This makes the automatic
gearbox shift down into a lower gear than the
one that would normally apply to the current
speed, allowing for more rapid acceleration
(e.g. to overtake another vehicle) without
having to press the accelerator until the kick-
down position. On shifting up in a corre-
sponding driving style, the gearbox returns to
the original programme.
When driving along mountain roads, the
gearbox adapts to the gradients. This avoids
having to frequently change gears when driv-
ing uphill. In Tiptronic mode, it is possible to
shift down manually when driving downhill to
use the braking effect of the engine. Backup programme A back-up programme exists in case of faults.
In the event
of
a fault in the gearbox electron-
ics, it will continue to work in one of the cor-
responding back-up programmes. All seg-
ments of the screen are lit up or switched off.
The fault can be seen as follows:
● The gearbox only engages certain gears
● Reverse gear R cannot be en
gaged
● The manual gearbox switches off in the
bac k
-up programme Note
If the gearbox switches to the back-up pro-
gramme, v
isit an Authorised Service as soon
as possible to solve the problem. Gearbox malfunctions
Gearbox: Fault! Stop the ve-
hicle and place the lever in the
position P.
There i s
a fault in the gearbox. Stop the vehi-
cle in a safe place and do not continue driv-
ing. Seek specialist assistance. 1)
Valid only for certain countries.
160

Towing bracket device
Driving with a trailer Exterior mirrors
Check
whether
you can see enough of the
road behind the trailer with the standard rear
vision mirrors. If this is not the case, you
should have additional exterior mirrors fitted.
Observe the relevant statutory requirements
of the country you are in.
Headlights
Before starting a journey, also check the
headlight beam settings with the trailer
hitched up. Adjust the headlight range set-
tings if necessary ›››
page 117, Main light
range control .
Driving speed
For your own safety do not drive faster than
the maximum permitted speed indicated on
the trailer.
At all times, immediately reduce speed if you
detect the slightest swaying movement of the
trailer. Never try to “return the trailer to a
straight position” by accelerating.
Brakes
Brake in due course! If the trailer has an over-
run brake, apply the brakes gently at first and
then, firmly. This will prevent the jerking that
can be caused by locking of trailer wheels.
Change to a lower gear in good time before descending a slope in order to take advant-
age of
the en
gine brake.
The trailer is incorporated into the vehicle's
anti-theft alarm system:
● When the vehicle has a factory-fitted anti-
theft al
arm and a towing bracket.
● When the trailer is electrically connected to
the vehic
le via the towing bracket socket.
● When the vehicle electrical device and the
tow
ing bracket are operational.
● When the vehicle is locked and the vehi-
cle's
anti-theft alarm device is activated.
Once the electrical connection is interrupted
with the vehicle trailer locked, the alarm
sounds.
Always switch off the vehicle anti-theft alarm
device before connecting or disconnecting a
trailer. The vehicle anti-theft alarm device
could cause the alarm to sound ››› page 112,
Anti-theft alarm system*.
Engine overheating
In the event that the coolant temperature
gauge needle moves to the right section of
the scale or to the red area, immediately re-
duce speed. If the control lamp flashes on
the general instrument panel, stop the vehi-
cle and switch off the engine. Wait several
minutes and check the coolant level in the
tank ››› page 208. Please observe the following indications
›››
page 208, Control lamp .
The coolant temperature can be reduced by
switching on the heating. WARNING
● Adjus t
your speed to suit the road and traf-
fic conditions.
● An electrical installation that is connected
incorrectly
or by non-specialised personnel
can prevent the connection of the current to
the trailer and cause faults in the operation of
the electrical system throughout the entire
vehicle, leading to accidents and serious in-
jury.
● All electrical work must be carried out only
by s
pecialised services.
● Never directly connect the trailer electrical
device t
o the electrical sockets of the reverse
driving lights or other sources of electrical
current. CAUTION
● Av oid c
orners, and sudden and sharp brak-
ing.
● Once the trailing arm has been removed,
plac
e the corresponding cover on the hole of
the fastening point. This prevents dirt from
entering the hole – see the trailer system as-
sembly manual. » 185
Technical data
Advice
Operation
Emergencies
Safety