
Modes and use of selector leverFig. 92
Selector lever /MAXI DOT display: Selector lever positions
First read and observe the introductory information and safety warn- ings
on page 100.
When the ignition is switched on, the gearbox mode and the gear currently selec-
ted are indicated in the display
1
» Fig. 92 .
The following modes can be selected with the selector lever » Fig. 92.
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 engine
is at idling speed.
Depress the brake pedal and simultaneously press the shiftlock in the selector
lever grip before shifting to R from P or N.
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 engine
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 en-
gine speeds than in mode D.
The shiftlock on the selector lever grip must be pressed when moving the selec-
tor lever out of D mode into S mode.
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 travel
mode from being selected accidentally and setting the vehicle in motion. The
warning light lights up in the instrument cluster » page 27.
The selector lever is released by depressing the brake pedal while simultaneously
pressing the locking button in the selection lever grip.
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 ap-
proximately 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 selected acci-
dentally.
101Starting-off and Driving

MalfunctionFirst read and observe the introductory information and safety warn-
ings
on page 100.
Emergency programme
The transmission switches to the emergency programme if there is a fault in the
automatic gearbox system.
Indications of an activated emergency programme include the following:
› Only certain gears are selected.
› Reverse gear
R cannot be used.
› Shifting gears in Tiptronic mode is not possible.
Gearbox overheating
The gearbox may, for example, become too hot due to frequent repeated starting
or stop-and-go traffic. Overheating is indicated by the warning light » page 19,
Clutches in the automatic gearbox are too hot .
Note
Visit a specialist workshop if the gearbox has switched to the emergency pro-
gramme.
Selector lever-emergency unlocking
Fig. 94
Selector lever-emergency un-
locking
First read and observe the introductory information and safety warn-
ings on page 100.
If the selector lever lock is defective or its power supply is interrupted (e.g. dis-
charged vehicle battery, faulty fuse), the selector lever can no longer be moved
out of position P in the normal manner, and the vehicle can no longer be driven.
The selector lever emergency unlocking procedure is as follows.›
Firmly apply the handbrake.
›
Carefully pull up the front left and right cover.
›
Pull up rear cover.
›
Use a finger to press the yellow plastic part in the direction of the ar-
row » Fig. 94 .
›
At the same time, press the locking button in the selector lever and move the
selector lever to N.
The selector lever will be locked once more if it is moved again to P.
Running in
Introduction
This chapter contains information on the following subjects:
New engine
103
New tyres
104
New brake pads
104
New engine
First read and observe the introductory information given on page 103.
The engine has to be run in during the first 1 500 kilometres.Up to 1 000 kilometres
›
Do not drive faster than 3/4 of the maximum speed of the gear in use, i.e. 3/4 of
the maximum permissible engine speed.
›
No full throttle.
›
Avoid high engine speeds.
›
Do not tow a trailer.
From 1 000 up to 1 500 kilometres
Gradually increase the power output of the engine up to the full speed of the
gear engaged, i.e. up to the maximum permissible engine speed.
The red scale on the rev counter indicates the range in which the system beginsto limit the engine speed.
103Starting-off and Driving

Assist systems
Brake assist systems
Introduction
This chapter contains information on the following subjects:
Electronic Stability Control (ESC)
110
Antilock Braking System (ABS)
111
Traction Control System (ASR)
111
Electronic Differential Lock (EDL)
111WARNING■ 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 manufactur-
er 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 146, Services, modifications and
technical alterations .
■
If a fault occurs in the ABS system, the ESC, TCS and EDL will also fail to work.
An ABS fault is indicated with the warning light » page 24 .
Electronic Stability Control (ESC)
First read and observe the introductory information and safety warn-
ings
on page 110.
The ESC system helps improve control of the vehicle in situations where it is be-
ing operated at its dynamic limits, such as a sudden change to the direction 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. In the event of deviations, such as the car beginning 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 stabilisation control
(ESC) :
› Antilock brake system (ABS),
› Traction control (TCS),
› Electronic Differential Lock (EDL)
› Hydraulic Brake Assist (HBA)
› Hill Hold Control (HHC).
The ESC system cannot be deactivated. The
» Fig. 99 on page 111 button can
only be used to deactivate the TCS. The
warning light comes on in the instru-
ment cluster when the TCS is deactivated.
In the event of an ESC fault, the ESC warning light illuminates in the instrumentcluster
» page 23 .
Hydraulic Brake Assist (HBA)
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 ach-
ieve the shortest possible braking distance, the brake pedal must be applied firm-
ly until the vehicle has come to a standstill.
The HBA function is automatically switched off when the brake pedal is released. The ABS is activated faster and more effectively with the intervention of the HBA.
110Driving

Hill Hold Control (HHC)
When driving on slopes, HHC allows you to move your foot from the brake pedal
to the accelerator pedal without having to use the handbrake.
The system holds the brake pressure produced by the activation of the brakepedal for approx. 2 seconds after the brake pedal is released.
The brake pressure drops gradually the more you operate the accelerator pedal. Ifthe vehicle does not start off within 2 seconds, it starts to roll back.
HHC is active on slopes of >5 % when the driver door is closed. HHC is always only
active on slopes when in forward or reverse start off. When driving downhill, it is inactive.
Antilock Braking System (ABS)
First read and observe the introductory information and safety warn-
ings
on page 110.
ABS prevents the wheels locking when braking. Thus helping the driver to main-
tain 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 pressure
on the brake pedal.
Traction Control System (ASR)
Fig. 99
TCS buttonFirst read and observe the introductory information and safety warn-
ings on page 110.
If the wheels are slipping, the ASR system adapts the engine speed to the condi-
tions of the road surface. The TCS makes it much easier to start off, accelerate
and climb steep hills even if the conditions of the road surface are unfavourable.
The TCS function is automatically activated each time the ignition is switched on.
During an intervention of the system, the TCS warning light flashes in the in-
strument cluster.
The TCS should normally always be enabled. Only in certain exceptional circum-
stances can it be sensible to switch the system off, for instance:
› when driving with snow chains;
› when driving in deep snow or on a very loose surface;
› when it is necessary to “rock a vehicle free” when it has got stuck.
Ensure the TCS is activated again afterwards.
You can switch TCS off and on again as needed by pressing the
button » Fig. 99 .
The
warning light comes on in the instrument cluster when the TCS is deactiva-
ted.
The TCS warning light
» page 26 lights up in the instrument cluster when there
is a fault on the TCS.
Electronic Differential Lock (EDL)
First read and observe the introductory information and safety warn-
ings
on page 110.
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.
EDL switches off automatically to avoid excessive heat generation on the 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.
111Assist systems

Activation/deactivationFirst read and observe the introductory information and safety warn-
ings
on page 112.
The system is activated automatically by engaging reverse gear. This is confirmed
by a brief audible signal.
The system is deactivated by disengaging reverse gear.
Note
The system cannot be activated on vehicles with a factory-fitted towing device
when towing a trailer.
Cruise Control System
Introduction
This chapter contains information on the following subjects:
Storing a speed
114
Changing a stored speed
114
Switching off temporarily
114
Switching off completely
114
The Cruise Control System (CCS) maintains a set speed, more than 25 km/h, with-
out you having to actuate the accelerator pedal.
This is only possible within the range which is permitted by the power output and
braking power of the engine.
The
warning light in the instrument cluster lights up when the cruise control
system is switched on.
WARNING■ For safety reasons, the cruise control system must not be used in dense
traffic or on unfavourable road surfaces (such as icy roads, slippery roads,
loose gravel) – there is a risk of an accident.■
The saved speed may only be resumed if it is not too high for the current
traffic conditions.
■
Always deactivate the cruise control system after use to prevent the system
being switched on unintentionally.
CAUTION
■ The cruise control system is not able to maintain a constant speed when driving
in areas with steeper gradients. The weight of the vehicle increases the speed at which it travels. Therefore, shift to a lower gear in good time or slow the vehicle
down by applying the foot brake.■
It is not possible to switch on the cruise control system on vehicles fitted with a
manual gearbox if the first gear or reverse gear is engaged.
■
It is not possible on vehicles fitted with an automatic gearbox to switch on the
cruise control system if the selector lever is in the position P, N or R.
■
The Cruise Control System may automatically switch off when some brake as-
sist systems (e.g. ESC) intervene, when the speed exceeds maximum permissible
engine speed, or a similar event takes place.
113Assist systems

START-STOP
Introduction
This chapter contains information on the following subjects:
Starting/shutting down the engine
115
Operating conditions for the system
115
Manually activating/deactivating the system
116
Information messages
116
The START-STOP system helps you to save fuel while at the same time reducing
harmful exhaust emissions and CO 2 emissions.
The function is automatically activated each time the ignition is switched on.
In the start-stop mode, the engine automatically switches to the vehicle's idle phase, e.g. when stopped at traffic lights. The engine restarts automatically
where necessary.
The system can work only if the following basic conditions are met. The driver's door is closed.
The driver has fastened the seat belt. The bonnet is closed.The driving speed exceeded 4 km/h after the last stop.
No trailer is coupled.
WARNING■ The brake servo unit and power steering only operate if the engine is run-
ning.■
Never let the vehicle roll with the engine switched off.
CAUTION
Always deactivate the START-STOP system before driving through wa-
ter » page 108 .Note■
If the driver's seat belt is removed for more than 30 seconds or the driver's door
is opened during stop mode, the engine will have to be started manually.■
After manually starting the engine, automatic engine shut down is not possible
until the vehicle has travelled the required minimum distance for START-STOP mode.
■
Changes to the outdoor temperature can have an effect on the internal temper-
ature of the vehicle battery even after several hours. If the vehicle remains out-
doors for a long time in minus temperatures or in direct sunlight, it can take sev-
eral hours until the internal temperature of the vehicle battery reaches a suitable
temperature for proper operation of the START STOP system.
■
If Climatronic is running in automatic mode, the engine may not switch off auto-
matically under certain conditions.
Starting/shutting down the engine
First read and observe the introductory information and safety warn-ings
on page 115.
›
Stop the vehicle (where necessary, apply the handbrake).
›
Shift the gear lever to Neutral.
›
Release the clutch pedal.
Automatic engine shut down (STOP phase) runs. The
warning symbol appears
in the instrument cluster display.
›
Depress the clutch pedal.
The new start procedure runs (START phase). The
warning symbol goes out.
Operating conditions for the system
First read and observe the introductory information and safety warn-
ings
on page 115.
The START-STOP system is very complex. Some of the procedures are hard to check without servicing.
No engine shut down runs
Before each STOP phase, the system checks whether certain conditions have
been met. No engine shut down runs in the following situations.
115Assist systems

›The engine has not yet reached the minimum temperature for the START STOP
mode.
› The temperature inside the vehicle has not reached the desired temperature
set in the air-conditioning system/heating.
› The external temperature is very low/high.
› Intensive windscreen deicing (Climatronic) or windscreen deicing/ventilation is
switched on at the maximum air temperature setting (manual air conditioning
system).
› The parking aid is activated.
› The charge state of the vehicle battery is too low.
› The stationary vehicle is on a steep hill or a steep slope.
› The idling speed is too high.
› The steering angle is too great (manoeuvring).
The
warning symbol is being shown in the instrument cluster display.
The automatic start procedure runs again During the STOP phase, the engine fires up without any active driver intervention,
e.g. in the following situations.
› The vehicle has begun to roll, e.g. on a slope.
› The difference between the temperature setting of the air-conditioning sys-
tem/heating and the temperature of the interior is too great.
› Intensive windscreen deicing (Climatronic) or windscreen deicing/ventilation is
switched on at the maximum air temperature setting (manual air conditioning
system).
› The brake pedal was pressed several times (the pressure in the braking system
is too low).
› The charge state of the vehicle battery is too low.
› The current consumption is too high.
Manually activating/deactivating the system
Fig. 102
Button for the START-STOP sys-
tem
First read and observe the introductory information and safety warn-
ings on page 115.
Activation/deactivation
›
Press the button » Fig. 102 .
When start-stop mode is deactivated, the warning light in the button lights up.
Note
If the system is deactivated during the STOP phase, the automatic start proce-
dure runs.
Information messages
First read and observe the introductory information and safety warn-
ings
on page 115.
The messages and information are indicated in the instrument cluster display.
Start the engine manually.START MANUALLY
The driver sees this message when the conditions for the automatic start proce- dure are not met during the STOP phase. The engine must be started manually.
Fault: start-stop system
ERROR START-STOP
Fault in the START-STOP system. Seek help from a specialist garage.
116Driving

The distribution of the weight is very poor if your vehicle is unladen and the trail-
er is laden. Maintain a particularly low speed if you cannot avoid driving with this
combination.
Tyre pressure
Correct the tyre inflation pressure on your vehicle for a “full load” » page 173,
Service life of tyres .
Trailer load
The permissible trailer load must not be exceeded under any circumstan- ces » page 199 , Technical data .
The trailer loads specified apply only to altitudes up to 1 000 metres above mean
sea level.
The engine output falls as altitude increases, as does the ability to climb. There-
fore, for every additional 1000 m in height (or part), the maximum permissible
towed weight must be reduced by 10 %.
The towed weight comprises the actual weights of the (loaded) towing vehicleand the (loaded) trailer.
The trailer and drawbar load information on the type plate of the towing equip-
ment are merely test data for the towing equipment. The vehicle-specific values
are detailed in the vehicle documents.WARNING■ Do not exceed the maximum permissible axle and drawbar load and the
maximum permissible total or towed weight of the vehicle and the trailer –
there is the risk of an accident and serious injury.■
Slipping loads can significantly affect the stability and safety of the vehicle/
trailer combination – there is the risk of an accident and serious injury.
Towing a trailer
First read and observe the introductory information and safety warn-
ings
on page 120.
Exterior mirrors
You have to have additional exterior mirrors fitted if you are not able to see the
traffic behind the trailer with the standard rear-view mirrors. The national legal requirements must be observed.
Headlights
The front of the vehicle can be lifted when a trailer is being towed and the head- lights can dazzle other road users.
Adjust the headlight setting on the headlight range control » page 42, Headlight
beam adjustment .
Driving speed
For safety reasons, do not drive faster than 80 km/h when towing a trailer.
Immediately reduce your speed as soon as even the slightest swaying of the trail- er is detected. Never attempt to stop the trailer from “swaying” by accelerating.
Brakes
Apply the brakes in good time! If the trailer is fitted with a trailer brake, apply the
brakes gently at first, then brake firmly. This will avoid brake jolts resulting from
the trailer wheels locking.
On downhill sections shift down a gear in good time to also use the engine as a
brake.
Engine overheating
The speed must be reduced immediately if the needle for the coolant tempera-
ture gauge moves into the right-hand area or the red area of the scale.
Stop and switch off the engine if the warning light
in the instrument cluster
starts to flash. Wait a few minutes and check the level of coolant » page 166,
Checking the coolant level .
The following guidelines must be observed » page 22,
Coolant .
The coolant temperature can be reduced by switching on the heating.WARNING■ Adapt your speed to the conditions of the road surface and to the traffic sit-
uation.■
Improper or incorrectly connected electric cables can energise the trailer and
cause functional faults to the vehicle's entire electrical system as well as acci-
dents and severe injuries.
■
Work on the electrical system must only be carried out by specialist garages.
■
Never directly connect the trailer's electrical system with the electrical con-
nections for the tail lights or other current sources.
121Towing a trailer