
Electronic immobilizerRead and observe
and on page 138 first.
An electronic chip is integrated in the head of the key. The immobiliser is deac-
tivated with the aid of this chip when the key is inserted in the ignition lock.
The electronic immobiliser is automatically activated when the ignition key is
withdrawn from the lock.
The engine will not start if a non-authorized ignition key is used.
The following message is shown in the instrument cluster display. Immobilizer active.
IMMOBILIZER
Ignition Switch
Fig. 134
Positions of the vehicle key in
the ignition lock
Read and observe and on page 138 first.
Petrol engines » Fig. 134
Ignition switched off, engine off, the steering can be locked
Ignition switched on
Starting engine
Diesel engines » Fig. 134
Fuel supply interrupted, ignition switched off, engine switched off, the
steering can be locked.
Heating glow plugs on, ignition switched on
Starting engine
To lock the steering , with the ignition key withdrawn, turn the steering wheel
until the steering locking pin engages audibly.
123123If the steering is locked and the key cannot be turned or can only be turned
with difficulty to position 2 » Fig. 134 , move the steering wheel back and
forth and the steering lock will unlock.
Note
We recommend locking the steering wheel whenever leaving the vehicle. This
acts as a deterrent against the attempted theft of your car.
Starting the engine
Read and observe
and on page 138 first.
Vehicles with a diesel engine are equipped with a glow plug system. The glow
plug warning light illuminates after the ignition has been switched on. Start
the engine once the warning light has gone out.
You should not switch on any major electrical components during the heating
period otherwise the vehicle battery will be drained unnecessarily.
Procedure for starting the engine
›
Firmly apply the handbrake.
›
Move the gearshift lever into neutral or move the selector lever into position
P or N.
›
Switch on the ignition
2
» Fig. 134 on page 139 .
›
Depress and hold the clutch pedal (vehicles with a manual gearbox) or brake
pedal (vehicles with an automatic gearbox) until the engine starts.
›
Turn the key to position
3
to the stop and release immediately the engine
has started – do not depress the accelerator.
After letting go, the vehicle key will return to position
2
.
If the engine does not start within 10 seconds, turn the key to position
1
. Re-
peat the start-up process after approx. half a minute.
Vehicles with manual transmission
The engine will not start if the clutch pedal is not depressed.
The following message is shown in the instrument cluster display. Depress clutch to start.
CLUTCH
139Starting off and Driving

Vehicles with automatic transmission1)
The engine will not start if the brake pedal is not depressed.
The following message is shown in the instrument cluster display. Depress the brake to start.
BRAKE
CAUTION
■ If the engine does not start-up after a second attempt, one of the following
fuses may be defective. ■ Petrol engine - fuse for the electric fuel pump.
■ Diesel engine - fuse for the control unit for glow plugs or glow plug relay
and fuel pump.■
Check the fuse and replace if necessary » page 220, or seek assistance from
a specialist garage.
Stopping the engine
Read and observe
and on page 138 first.
Switch off the engine by turning the ignition key to position
1
» Fig. 134 on
page 139 .
For vehicles with automatic transmission, the ignition key can only be removed
if the selector lever is in position P.
Starting and stopping the engine - KESSY
Introduction
This chapter contains information on the following subjects:
Steering lock / unlock
141
Ignition on/off
141
Starting the engine
142
Switching off the engine
142
Emergency start-up of the engine
142
Emergency ignition shutoff system
143The KESSY system (Keyless Entry Exit System, hereinafter referred to only as
system) allows the switching on or switching off of the ignition and starting or
stopping of the engine without the active use of the key.
A key must be in the vehicle to unlock the steering, switch on the ignition and
start the vehicle. When travelling the key must be in the vehicle.
The engine running noises may louder at first be louder for a short time after starting the cold engine. This is quite normal and is not an operating problem.WARNING■ Never leave the key in the vehicle when you exit the vehicle. Unauthor-
ized persons, such as children, for example, could lock the car, turn on the
ignition or start the engine - there is a danger of injury and accidents!■
Never leave the vehicle unattended with the engine running - there is a
risk of theft etc!
■
Never switch off the engine before the vehicle is stationary – risk of acci-
dent!
WARNING■ Never leave the engine running in unventilated or closed rooms. The en-
gine's exhaust gases also contain the odourless and colourless carbon
monoxide, a poisonous gas – risk of death. ■ Carbon monoxide can cause unconsciousness and death.
CAUTION
■The system can recognize the valid key, even if it has been forgotten, for ex-
ample, in the front of the vehicle roof D » Fig. 34 on page 53 - There is danger
of loss or damage to the key! It is therefore not always necessary to know
where the key is.■
The starter must only be operated when the engine is not running and the
vehicle is at a standstill. The starter or engine may be damaged if the starter is
activated when the engine is running.
■
Do not tow start the engine – there is a risk of damaging the engine and the
catalytic converter. The battery from another vehicle can be used as a jump-
start aid » page 211 , Jump-starting .
1)
Applies to vehicles with START STOP system.
140Driving

CAUTION■Avoid high engine revolutions, full throttle and high engine loads before the
engine has reached its operating temperature – risk of damaging the engine!■
Do not switch the engine off immediately at the end of your journey after the
engine has been operated over a prolonged period at high loads but leave it to
run at an idling speed for about 1 minute. This prevents any possible accumula-
tion of heat when the engine is switched off.
For the sake of the environment
Do not warm up the engine while the vehicle is stationary. If possible, start
your journey as soon as the engine has started. Through this the engine rea-
ches its operating temperature more rapidly and the pollutant emissions are
lower.
Note
■ The system is protected against inadvertently switching off the engine while
driving, this means that the engine can only be switched off in an emergen-
cy » page 143 .■
After switching off the ignition, the radiator fan can intermittently continue
to operate for approx. 10 minutes.
■
Under certain circumstances (e.g. after switching off the ignition and opening
the driver's door), the steering is enabled only when the ignition is switched on
or the engine is started.
Steering lock / unlock
Fig. 135
Starter button
Read and observe and on page 140 first.
The steering lock (steering lock) deters attempted theft of your vehicle.
Locking
›
Stop the vehicle.
› Switch off the engine or the ignition by pressing the starter button
» Fig. 135.›Open the driver door.
The steering is locked automatically.
If the driver's door is opened and the ignition is switched off afterwards, the
steering is only locked after the vehicle is locked.
Unlocking›
Open the driver's door and get into the vehicle.
›
Close the driver's door.
The steering is unlocked within 2 seconds.
If the system does not unlock the steering at the first time (for example when
the front wheels are in contact with an obstacle), then two more unlocking at-
tempts are performed automatically.
If the steering is still not unlocked, then the following message is displayed on the display of the instrument cluster.
Move the steering wheel!
MOVE STEERING WHEEL
Slightly move the steering wheel and the system will make up to 3 more at-
tempts to unlock after 2 seconds. At the same time, the warning light flash-
es.
If the steering is still not unlocked, to try to eliminate the possible cause and
then repeat the unlocking attempt.
Ignition on/off
Read and observe
and on page 140 first.
›
Press the starter button » Fig. 135 on page 141 briefly.
The ignition is switched on or off.
On vehicles fitted with a manual transmission, the clutch pedal must not be
depressed while switching the ignition on or off, otherwise the system would
try to start.
On vehicles fitted with a automatic transmission, the brake pedal must not be
depressed while switching the ignition on or off, otherwise the system would
try to start.
141Starting off and Driving

If the driver's door is opened while the ignition is on, an audible signal sounds
and the following message appears in the instrument cluster display.
Ignition on!
IGNITION SWITCHED ON
When leaving the vehicle always switch off the ignition.
Note
The ignition is switched on when indicated by the illuminating of certain indi-
cator lamps in the instrument cluster.
Starting the engine
Read and observe
and on page 140 first.
Vehicles with a diesel engine are equipped with a glow plug system. The glow
plug warning light illuminates after the ignition has been switched on. Start
the engine once the warning light has gone out.
You should not switch on any major electrical components during the heating
period otherwise the vehicle battery will be drained unnecessarily.
Procedure for starting the engine
›
Firmly apply the handbrake.
›
Move the gearshift lever into neutral or move the selector lever into position
P or N.
›
Depress and hold the clutch pedal (vehicles with a manual gearbox) or brake
pedal (vehicles with an automatic gearbox) until the engine starts.
›
Press and hold » Fig. 135 on page 141 1)
the starter button until the engine
starts.
CAUTION
■ If the engine does not start-up after a second attempt, one of the following
fuses may be defective. ■ Petrol engine - fuse for the electric fuel pump.
■ Diesel engine - fuse for the control unit for glow plugs or glow plug relay
and fuel pump.■
Check the fuse and replace if necessary » page 220, or seek assistance from
a specialist garage.
Switching off the engine
Read and observe
and on page 140 first.
›
Stop the vehicle.
›
Press the starter button » Fig. 135 on page 141 briefly.
The engine and the ignition are switched off simultaneously.
The engine can be switched off up to a speed of 2 km/h.
Emergency start-up of the engine
Fig. 136
Emergency start-up of engine
Read and observe and on page 140 first.
If the authorisation check for the key fails, the following message appears in the instrument cluster display.
Key not found.
NO KEY
The emergency start-up must be completed.
› Press the starter button directly with the key
» Fig. 136.
or
› Press the starter button and then hold the key to the starter button.
Note
During an emergency engine start-up, the key bit must face the starter but-
ton » Fig. 136 .1)
On vehicles with the START STOP system, it is sufficient to press the starter button briefly. The motor
will then automatically start.
142Driving

Fig. 140
Shift lock button
Read and observe and on page 145 first.
When the ignition is switched on, the gearbox mode and the currently selectedgear are indicated in the display » Fig. 139.
The following modes can be selected with the selector lever » Fig. 139.
P
– Parking mode
The driven wheels are locked mechanically in this mode.
Parking mode must only be selected when the vehicle is stationary.
R
- Reverse gear
Reverse gear can only be engaged when the vehicle is stationary and the en-
gine is at idling speed.
Before moving into mode R from mode P or N, depress the brake pedal while
simultaneously pressing the lock button in the direction of the ar-
row » Fig. 140 .
N
- Neutral
Power transmission to the drive wheels is interrupted in this mode.
D
- Mode for forwards travel (normal programme)
In mode D, the forward gears are automatically changed according to the en-
gine load, accelerator pedal actuation and driving speed.
S
- Mode for forwards travel (sports programme)
In mode S, the forward gears are shifted automatically up and down at higher
engine speeds than in mode D.
Before changing to mode S from mode D , the shift lock button must be press-
ed in the direction of the arrow » Fig. 140.
Releasing selector lever from P or N modes (selector lever lock)
The selector lever is locked in the P and N modes to prevent the forwards trav-
el mode from being selected accidentally and setting the vehicle in motion.
The
warning light illuminates in the instrument cluster » page 41.
The selector lever is released by depressing the brake pedal while simultane-
ously pressing the lock button in the direction of the arrow » Fig. 140.
The selector lever is not locked when shifted quickly through N (e.g. from R to
D ). This, for example, helps to rock out a vehicle that is stuck, e.g. in a bank of
snow. The selector lever lock will engage if the lever is in position N for more
than approximately 2 seconds without the brake pedal being depressed.
The selector lever is locked only when the vehicle is stationary and at speeds
up to 5 km/h.
Note
If you want to move the selector lever from mode P to mode D or vice versa,
move the selector lever quickly. This prevents modes R or N from being selec-
ted accidentally.
Manual gear shifting (Tiptronic)
Fig. 141
Selector lever/multi function steering wheel
Read and observe
and on page 145 first.
Tiptronic mode makes it possible to manually shift gears with the selector lev-
er or multifunction steering wheel. This mode can be selected both while hal-
ted and while driving.
The currently selected gear is indicated in the » Fig. 139 on page 145 display.
The gearshift indicator must be observed when changing gear » page 43.
146Driving

Assist systems
Brake assist systems
Introduction
This chapter contains information on the following subjects:
Electronic Stability Control (ESC)
154
Antilock brake system (ABS)
155
Traction Control System (ASR)
155
Electronic Differential Lock (EDL)
155
Driver Steering Recommendation (DSR)
155
Hydraulic Brake Assist (HBA)
155
Hill Hold Control (HHC)
156WARNING■ A lack of fuel can cause irregular engine running or cause the engine to
shut down. The brake assist systems would then fail to function – risk of
accident!■
Adjust the speed and driving style to the current visibility, weather, road
and traffic conditions. The increased safety provided by the brake assist
systems must not tempt you to take safety risks – risk of accident!
■
In the event of an ABS fault, visit a specialist garage immediately. Adjust
your style of driving according to the damage to the ABS, as you will not
know the exact extent of the damage or the extent to which this is limiting the braking efficiency.
CAUTION
■ All four wheels must be fitted with the same tyres approved by the manufac-
turer to ensure the brake assist systems operate correctly.■
Changes to the vehicle (e.g. to the engine, brakes, chassis) can influence the
functionality of the brake assist systems » page 173, Services, modifications
and technical alterations .
■
If a fault occurs in the ABS system, the ESC, ASR and EDL will also not work.
An ABS fault is indicated with the warning light
» page 38 .
Electronic Stability Control (ESC)Fig. 146
ESC system: ASR button
Read and observe and on page 154 first.
The ESC system helps to maintain control of the vehicle in situations where it
is being operated at its dynamic limits, such as a sudden change to the direc-
tion of travel. Depending on the road surface conditions, the risk of skidding is
reduced, thereby improving the vehicle's driving stability .
The ESC system is automatically activated each time the ignition is switched on.
The direction which the driver wishes to take is determined based on the
steering angle and the speed of the vehicle and is constantly compared with
the actual behaviour of the vehicle. If differences exist, such as the car begin-
ning to skid, the ESC system will automatically brake the appropriate wheel.
During an intervention of the system, the warning light flashes in the instru-
ment cluster.
The following systems are integrated into the Electronic Stability Control
(ESC) .
› Antilock Brake System (ABS)
» page 155.
› Traction control (ASR)
» page 155.
› Electronic Differential Lock (EDL)
» page 155.
› Driver Steering Recommendation (DSR)
» page 155.
› Hydraulic Brake Assist (HBA)
» page 155.
› Hill Hold Control (HHC)
» page 156.
› Trailer stabilisation (TSA)
» page 172.
The ESC system cannot be deactivated. The
» Fig. 146 button can only be
used to deactivate the ASR.
The warning light illuminates in the instrument cluster when the ASR is de-
activated.
154Driving

Antilock brake system (ABS)Read and observe
and on page 154 first.
ABS prevents the wheels locking when braking. Thereby, it helps the driver to
maintain control of the vehicle.
The intervention of the ABS is noticeable from the pulsating movements of
the brake pedal which is accompanied by noises.
When the ABS system is active, do not brake periodically or reduce the pres-
sure on the brake pedal.
Traction Control System (ASR)
Fig. 147
ASR button
Read and observe and on page 154 first.
If the wheels are slipping, the ASR system adapts the engine speed to the con- ditions of the road surface. The ASR makes it much easier to start off, acceler-
ate and climb steep hills even if the conditions of the road surface are unfav-
ourable.
The ASR function is automatically activated each time the ignition is switched
on.
If your vehicle is fitted with the ESC system, the ASR is integrated into the ESC
system » page 154 .
During an intervention of the system, the ASR warning light flashes in the
instrument cluster.
The ASR should normally always be enabled. The system should be deactiva-
ted only in the following situations, for example.
› When driving with snow chains.
› When driving in deep snow or on a very loose surface.
› When “rocking a car free” when it has become stuck.
The ASR can be deactivated via the
» Fig. 147 symbol button.
The
warning light illuminates in the instrument cluster when the ASR is de-
activated.
Ensure the ASR is activated again afterwards.
Electronic Differential Lock (EDL)
Read and observe
and on page 154 first.
If one of the wheels starts to spin, the EDL system brakes the spinning wheel
and transfers the driving force to the other wheels. This ensures the stability
of the vehicle and a quick journey.
The EDL switches off automatically in order to avoid excessive heat generation
in the disc brake of the wheel being braked. The vehicle can continue to be
driven and has the same characteristics as a vehicle not fitted with EDL. The
EDL switches on again automatically as soon as the brake has cooled down.
Driver Steering Recommendation (DSR)
Read and observe
and on page 154 first.
In critical situations, the DSR provides the driver with a steering recommenda-tion in order to stabilise the vehicle. The DSR is activated, for example, on the
right and left vehicle side when braking sharply on different road surfaces.
Hydraulic Brake Assist (HBA)
Read and observe
and on page 154 first.
HBA increases the braking effect and helps to shorten the braking distance.The HBA is activated by very quick operation of the brake pedal. In order to
achieve the shortest possible braking distance, the brake pedal must be ap-
plied firmly until the vehicle has come to a standstill.
The HBA function is automatically switched off when the brake pedal is re-
leased.
155Assist systems

The parking aid is part of the park assist system, therefore the information
and safety guidelines » page 156 , Parking aid must also be read and ob-
served.WARNING■ The system only serves as an assistance and does not relieve the driver
of the responsibility for the vehicle operation.■
During the parking process, the system automatically performs rapid
steering movements. While it is doing so, do not place your hands between
the steering wheel spokes – risk of injury!
■
During a parking manoeuvre on loose or slippery surfaces (gravel, snow,
ice, etc.) you may stray from the calculated road because of the surface
conditions. Therefore we suggest that you do not use the system in such
situations.
■
External noise sources may affect the signals of the system sensors. Un-
der adverse conditions, this may cause objects or people to not be recog-
nised by the system.
CAUTION
■ If other vehicles are parked behind the kerb or on it, the system can also
guide your vehicle beyond the kerb or onto it. Ensure that the wheels or the
wheel rims of your vehicle are not damaged and if necessary intervene in time.■
Under certain circumstances, surfaces or structures of certain objects such
as wire mesh fences or powder snow cannot be recognised by the system.
■
Under adverse weather conditions (heavy rain, water vapour, very low or
high temperatures etc.), the system function may be limited - “incorrect recog-
nition of obstacle”.
CAUTION
The correct evaluation of the parking space and the parking procedure de-
pends on the circumference of the wheels on the vehicle.■
The system only works correctly if the vehicle is fitted with the wheel size
approved by the manufacturer.
■
Do without the use of the system if snow chains or a spare wheel is moun-
ted.
■
If wheels other than those approved by the manufacturer are mounted, the
resulting position of the vehicle in the parking space can differ slightly. This
can be avoided by readjusting the system at a specialist garage.
Note
We recommend performing the parking at a safe speed to about 5 km / h.Functioning
Read and observe
and on page 158 first.
Basic system operations
› The measurement and evaluation of the size of parking spaces when driving.
› The determination of the correct position of the vehicle for parking.
› The calculation of the line on which the vehicle drives backwards into the
parking space or forwards from the parking space.
› Automatic rotation of the front wheels during the parking.
The display of the instrument cluster (hereinafter only in the display) informa- tion and system messages are displayed.
When the system is activated, the warning light illuminates
» Fig. 149 on
page 158 -
.
The traction control system (ASR) must always be switched on when parking.
Finding a parking space
Fig. 149
System button / display
Read and observe
and on page 158 first.
Finding a parallel parking space
›
Drive past the parking space at up to 40 km/h and a distance of 0.5 – 1.5 m.
›
Press the symbol button once
» Fig. 149 .
The display shows the following » Fig. 149 -
.
Finding a perpendicular parking space
›
Drive past the parking space at up to 20 km/h and a distance of 0.5 – 1.5 m.
›
Press the symbol button twice
» Fig. 149 .
158Driving