Operation
In the event of prolonged, irregular distribu-
tion of the air flo
w fr
om the outlets (particu-
larly the footwells) and significant differen-
ces in temperature, e.g. on leaving the vehi-
cle, sensitive people may catch cold.
Air recirculation Air recirculation prevents unpleasant smells,
e.g. when p
a
ssing through a tunnel or in
queuing traffic, from entering the interior.
Switching on air recirculation mode
● Press the button 17
› ›
› Fig. 172
and the
symbol is displayed on the screen.
Switching off air recirculation mode
● Press the button 17
› ›
› Fig. 172
and the
symbol disappears from the screen. WARNING
Read and observe the safety warnings ›››
in
Genera l
notes on page 146. Note
If air recirculation mode remains on for 15 mi-
nute s, the
symbol will start to flash on
the screen to indicate prolonged air recircula-
tion. If air recirculation is not switched off,
the symbol will continue to flash for about 5
minutes. Blower selection
Climatronic automatically regulates blower
speed ac
c
ording to the interior temperature.
It is possible, however, to set the blower
speed to suit requirements.
● Turn control 10
››› Fig. 172 c
ounter-clock-
wise (to lower the speed) or clockwise (to in-
crease the speed).
Climatronic will switch off when the blower
switches off. WARNING
Read and observe the safety warnings ›››
in
Genera l
notes on page 146. Windscreen defrost
Switching on windscreen defrosting
●
Press the button
12
› ›
›
Fig. 172.
Switching off windscreen defrosting
● Press the button 12
› ›
›
Fig. 172 sev-
eral times or press the button.
The temperature is regulated automatically.
The air output is increased from vents 1
››› page 147 and 2. Driving
St ar
tin
g and stopping the en-
gine
Introduction Read the additional information carefully
›› ›
page 18 WARNING
● When mov in
g with the engine switched off,
the ignition key must always remain in posi-
tion 2
››› Fig. 173 ›
›› page 154 (ignition on).
The control lamps will light up in this posi-
tion. Otherwise, the steering lock could en-
gage suddenly. Risk of accident!
● Do not remove the key from the ignition un-
til the
vehicle has come to a standstill and is
secure (e.g. the handbrake is engaged). Oth-
erwise, the steering lock could suddenly en-
gage. Risk of accident!
● Always take the ignition key with you when
you le
ave the vehicle. This is particularly im-
portant if you leave children in the vehicle.
Children could, for example, start the engine
with the subsequent risk of accident.
● Never leave the engine running in unventi-
lated or c
losed rooms. The exhaust gases
contain carbon monoxide, an odourless and
colourless poisonous gas. Risk of fatal acci-
dents! Carbon monoxide can cause people to
lose consciousness and can cause death. 152
Operation
Go to a specialised workshop as soon as
po s
s
ible and have the fault repaired. WARNING
Take it immediately to a specialised work-
shop and hav e the f
ault repaired: risk of acci-
dent! Note
If the lamp (in red) or (in
yellow) lights
up briefly, you may continue driving. Start-up lock security system (immo-
b
i
li
ser) There is an electronic chip in the key. The
el
ectr
onic
immobiliser is deactivated when
the key is inserted into the ignition. The elec-
tronic immobiliser is automatically activated
when the key is removed from the ignition.
The engine will not start if an unauthorised
key is used.
The informative display indicates:
Immobiliser active! Ignition lock
Fig. 173
Ignition key positions. Petrol engines
1 – Ignition switched off, engine stopped,
s t
eerin
g can be locked
2 – Ignition switched on
3 – Starting
Die sel
en
gines
1 – Fuel supply stopped, ignition switched
off , en
gine s
topped, steering can be locked
2 – Engine pre-heating, ignition switched
on
3 – Starting
T o en
g
age the Steering lock without the key
in the ignition, turn the steering wheel slight-
ly until you hear it engage. If the
steering lock is engaged and it i
s diffi-
cult or impossible to turn the key to position 2 , release the lock by turning the steering
wheel s
lightly
in both directions.
154
Driving
Starter button Fig. 174
In the steering column: start-up
p u
sh b
utton for the Keyless Access lock and
start-up system. The layout in right-hand
drive vehicles is symmetrical. Fig. 175
Emergency ignition in vehicles with
K eyl
e
ss Access. The start-up button may only be used if there
i
s a
valid key in the vehicle. Opening the driver's door
when exitin
g the
vehicle activates the electronic lock on the
steering column if the ignition is disabled.
Switching the ignition on/off
● Briefly push the start-up button ›››
Fig. 174
without touching the brake or clutch ped-
al ››› .
Emer g
ency
starting function
If no valid key is detected inside the vehicle,
an emergency start-up will be required. The
relevant message will appear in the dash
panel display. This may happen when, for ex-
ample, the vehicle key battery is very low or
flat:
● Immediately after pushing the start-up but-
ton, keep the
vehicle key next to the steering
column ››› Fig. 175.
● The ignition connects and the engine starts
automatic
ally.
Emergency disconnection
If the engine does not stop after briefly press-
ing the start-up button, an emergency dis-
connect will be required:
● Press the starter button twice within 1 sec-
ond or pres
s it once for more than 2 seconds
››› .
● The engine turns off automatically. Engine restart feature
If
no
v
alid key is detected inside the vehicle
after the engine stops, you will only have 5
seconds to restart it. A warning will display
on the dash panel screen.
After this interval, it will not be possible to
start the engine without a valid key inside
the vehicle. WARNING
Any accidental movement of the vehicle could
re s
ult in serious injury.
● When pressing the start-up button, do not
pre
ss the brake or clutch pedal, this way the
engine will start immediately. WARNING
If vehicle keys are used negligently or with-
out due c ar
e, this may cause accidents and
serious injury.
● Never leave any key inside the vehicle
when exitin
g. Otherwise, a child or unauthor-
ised person could lock the vehicle, start the
engine or connect the ignition and, in this
way, operate electronic equipment (e.g. the
windows). Note
● In diesel
vehicles with the Keyless Access
system, there may be a delay in the engine
starting if it requires preheating. » 155
Technical data
Advice
Operation
Emergencies
Safety
Driving
lights will switch on. The hazard warning
lights
ar
e automatically switched off when
you accelerate or restart the vehicle.
● On long, steep gradients, reduce your
speed and ch
ange to a lower gear (manual
gearbox) or move the selector lever to a lower
gear position (automatic gearbox). This uses
the force of the engine and the brakes do not
suffer as much. If you still have to brake, do
so intermittently, pressing down repeatedly
on the brake pedal.
● Vehicle modifications (e.g. to the engine,
brake
s, frame or a combination of wheels and
tyres) could impair the brake assist systems
››› page 194, Accessories and modifications
to the vehicle .
● In the event of a fault in the ABS system,
the ESC, T
CS and EDL are switched off auto-
matically. A fault in the ABS is indicated by
the ››› page 159 warning lamp. Control lamp
The warning lamp i
l
lumin
ates if the brake
fluid level is too low or if there is a fault in the
ABS system.
The informative display indicates:
Brake fluid Instruction Manual!
Stop the vehicle, switch off the engine and
check the level of the brake fluid
››› page 211 WARNING
● The fo l
lowing indications must be taken in-
to account when opening the engine com-
partment to check the brake fluid
››› page 204, Engine compartment.
● If the warning lamp illumin
ates together
with the warning lamp ››› page 159, ,
stop the vehicle! Go to a technical service.
● A fault in the brake system or in the Anti-
lock br
ake system (ABS) can lead to longer
braking distances – Risk of accident! Brakes
Wear
The r
at
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 period
s 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 immediately 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 157, 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.
157
Technical data
Advice
Operation
Emergencies
Safety
Operation
Handbrake Fig. 176
Centre console: handbrake. Applying the handbrake
– Pull the handbrake lever up all the way.
R el
e
asing the handbrake
– Pull the handbrake lever up slightly and
pres
s the unlock button at the same time
››› Fig. 176.
– 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-
cl
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
example, if the vehicle begins to skid, the
ESC brakes 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 switched on at all times.
Only
u
nder 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 standstill.
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
158
Driving
from the brake pedal and you can use the ac-
c el
er
ator 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 warning 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.
Keep the brake pedal pressed down while the
ABS is 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 157 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
wheels
(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 flashes, 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) »
159
Technical data
Advice
Operation
Emergencies
Safety
Operation
Go to a technical service.
Electronic differential lock If one of the wheels starts to skid, the EDL
brak
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
Chan gin
g gears Fig. 177
Gear shift diagram of a 5- or 6-speed
m anual
g
earbox Read the additional information carefully
› ›
›
page 35
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 29.
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. 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 163.
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
160
Driving
slope, the handbrake should be firmly ap-
p lied bef
or
e moving the selector lever to the
park position. 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 204, 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 v
ehic
le could move backwards. Risk
of accident!
● 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. –
Pr e
s
s and hold the interlock button on the
selector lever knob and move the selector
lever to position ››› page 162 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 »
161
Technical data
Advice
Operation
Emergencies
Safety