
142Seats and storage
Note
Read and take into account the instructions included with the roof carrier
system fitted and keep them in the vehicle.
Loading the roof carrier system
Loads can only be correctly secured when the roof carrier system is correctly
fitted ⇒ .
Maximum authorised roof load
The maximum authorised roof load is 100 kg (about 220 lbs). The roof load
includes the roof carrier system and the load being transported ⇒
.
Always check the roof carrier system weight and the weight of the load to be
transported and, if necessary, weigh them. Never exceed the maximum au-
thorised roof load.
If you are using a roof carrier with a lower weight rating, you cannot trans-
port the maximum roof load. Do not exceed the maximum weight limit for
the roof carrier given in the fitting instructions.
Distributing a load
Uniformly distribute loads and secure them correctly ⇒
.
Check attachments
After fitting the base supports and the roof carrier system, always check the
attachments after a short trip or at regular intervals.
WARNING
Exceeding the maximum authorised roof load can result in accidents
and/or vehicle damage.
● Always respect the maximum authorised weight for the roof, the max-
imum authorised weight on the axles and the total maximum authorised
weight of the vehicle.
● Never exceed the capacity of the roof carrier system even if this is
less than the maximum authorised roof load.
● Secure heavy objects towards the front and distribute the load even-
ly.
WARNING
Loose and incorrectly secured loads can fall from the roof carrier system
causing accidents and injury.
● Always use suitable ropes and straps in good condition.
● Always secure loads correctly.
Storage compartments Introduction
Storage compartments must only be used to store light or small objects.
The front central armrest compartment houses the factory-fitted AUX-IN or
multimedia (MEDIA-IN) connection sockets.
The factory-fitted CD changer is located in the left-hand storage compart-
ment of the luggage compartment.

160Air conditioning
Some Climatronic controls may also be on the air conditioner control panel
located in the rear centre console. These controls are used to make the ap-
propriate settings for the rear seats.
Control but- tonAdditional information. Electronic manual air conditioning
⇒ Fig. 123; Climatronic ⇒ Fig. 124.
1 Temper-
ature
...
Electronic manual air conditioning : Rotate the control to ad-
just the temperature accordingly. In the position AC
MAX , the
cooling output will be set to maximum. The air recirculation
mode and the cooling system are automatically switched on.
Climatronic: The left and right sides can be adjusted sepa-
rately. Rotate the control to adjust the temperature accord-
ingly.
2 Fan
Electronic manual air conditioning : Setting 0: Air fan and air
conditioning system (manual) switched off, setting 4: Maxi-
mum setting of fan.
Climatronic: The power of the fan is automatically adjusted.
Rotate the control to manually adjust the fan.
3 Air dis-
tribution
Electronic manual air conditioning : Rotate the continuous
control to direct the airflow to the desired area.
Climatronic: The airflow will be automatically adjusted to a
comfortable flow. It can also be switched on manually with
the buttons 3
.
4Climatronic: Display of the selected interior temperature for
the left and right sides.
Electronic manual air conditioning
: Defrost function. The air-
flow is directed at the windscreen. In this position, air recir-
culation is automatically switched off or is not switched on.
Increase the fan power to clear the windscreen of condensa-
tion as soon as possible. To dry the air the cooling system
will automatically switch on.
Control but- tonAdditional information. Electronic manual air conditioning
⇒ Fig. 123; Climatronic ⇒ Fig. 124.
Climatronic: Defrost function. The air drawn in from outside
the vehicle is directed at the windscreen and air recirculation
is automatically switched off. To defrost the windscreen more
quickly, the air is dehumidified at temperatures over approxi-
mately +3 °C (+38 °F) and the fan runs at maximum output.
The air is directed at the chest of driver and passengers by
the dash panel air vents.
Air distribution towards the footwell.
Electronic manual air conditioning : Air distribution towards
the windscreen and the footwell.
Climatronic: Upward air distribution.
Heated rear window: Only works when the engine is running
and switches off automatically after a 10 minutes.
Electronic manual air conditioning : Air recirculation
⇒ page 163.
Climatronic: Manual and automatic air recirculation
⇒ page 163.
Instant auxiliary heating on/off button ⇒ page 165.
Buttons for the seat heating ⇒ page 118.
Climatronic: According to the vehicle equipment there may
be a button for the windscreen heating on the air conditioner
control panel. The windscreen heating only works when the
engine is running and switches off automatically after a few
minutes.
Press the button to switch on or off the cooling system.

168Air conditioning
Checking programming
If the timer has been switched on after switching the ignition off, the instant
on button
will remain lit for around ten seconds.
WARNING
Never program the independent heating system to be activated and oper-
ated in closed, unventilated areas. The auxiliary heater fumes contain
carbon dioxide, an odourless and colourless toxic gas. Carbon monoxide
can cause people to lose consciousness. It can also cause death.
Operating instructions
The auxiliary heater exhaust system located below the vehicle must be kept
clear of snow, mud and other objects. The exhaust gases must not be ob-
structed in any way. The exhaust gases generated by the auxiliary heater are
removed via an exhaust pipe fitted underneath the vehicle.
On heating the vehicle interior, depending on the outside temperature the
warm air is first directed at the windscreen and then to the rest of the vehi-
cle interior through the air vents. If the air vents are turned towards the win-
dows, for example, the form of air distribution may be affected.
Depending on the outside temperature, the temperature at which the auxili-
ary heater warms the vehicle interior may be somewhat higher if the heating
or air conditioner temperature control is set to maximum before switching
the heating on.
Depending on the engine, vehicles with auxiliary heater may be fitted with a
second battery in the luggage compartment that is responsible for powering
the auxiliary heater. Cases in which the auxiliary heater will not switch on
●
The auxiliary heater requires about as much power as the dipped beam
headlights. If the battery charge is low, the auxiliary heater will switch off
automatically or will not even switch on. This avoids problems when starting
the engine.
● The heater will switch just once each time. The timer will also have to be
switched back on every time it is required.
Note
● Noise will be heard while the auxiliary heater is running.
● When the air humidity is high and the outside temperature low, the
heating system may evaporate condensation from the auxiliary heater. In
this case, steam may be released from underneath the vehicle. This is com-
pletely normal and there is no need to suspect a fault!
● If the auxiliary heater runs several times over a prolonged period, the ve-
hicle battery may run flat. To re-charge the battery, drive the vehicle for a
long distance. In general: drive for as much time as the auxiliary heating
was working.

169
Driving
Driving SteeringIntroduction
The power steering is not hydraulic but electromechanical. The advantage
of this steering system is that it disposes of hydraulic tubes, hydraulic oil,
the pump, filter and other components. The electromechanical system
saves fuel. While a hydraulic system requires oil pressure to be maintained,
electromechanical steering only requires energy when the steering wheel is
turned.
With the power steering system, the assisted steering function automatical-
ly adjusts according to the vehicle speed, the steering torque and the wheel
turning angle. The power steering only works when the engine is running.
Additional information and warnings:
● Start and stop the engine ⇒ page 172
● Vehicle battery ⇒ page 292
● Tow starting and towing away ⇒ page 344
WARNING
If the power steering is not working then the steering wheel is much
more difficult to turn and the vehicle more difficult to control.
● The power steering only works when the engine is running.
● Never allow the vehicle to move when the engine is switched off.
● Never remove the key from the ignition if the vehicle is in motion. The
steering may lock and it will not be possible to turn the steering wheel.
Control and warning lamps
lights upPossible causeSolution
(red)Power steering faulty.The steering system should be
checked by a specialised work-
shop as soon as possible.
(yellow)
Power steering operation re-
duced.
The steering system should be
checked by a specialised work-
shop as soon as possible.
If, after restarting the engine
and driving for a short distance,
the yellow warning lamp no lon-
ger comes on, it will not be nec-
essary to take the vehicle to a
specialised workshop.
The vehicle battery was dis-
connected and has been re-
connected.Travel a short distance at about
15-20 km/h (9-12 mph).
Safety FirstOperating instructionsPractical TipsTechnical Specifications

172Driving
Stopping and starting the engine
Introduction
Immobiliser display
When an invalid key is used or in the event of a system fault, or Immo-
biliser on is displayed on the instrument panel. The engine cannot be star- ted.
Pushing or towing
For technical reasons, the vehicle must not be push- or tow-started. Jump
starting is preferable.
Additional information and warnings:
● Vehicle key set ⇒ page 72
● Changing gear ⇒ page 176
● Braking, stopping and parking ⇒ page 185
● Steering ⇒ page 169
● Start assist systems ⇒ page 196
● Refuelling ⇒ page 268
● Fuel ⇒ page 271
● Emergency locking and unlocking ⇒ page 318
● Jump starting ⇒ page 341
● Tow starting and towing away ⇒ page 344
WARNING
Turning off the engine while driving will make stopping the vehicle diffi-
cult; this could even result in the loss of control causing an accident with
serious consequences.
● The assisted braking and steering systems, the airbag system, seat
belts and certain safety equipment are only active while the engine is
running.
● The engine should only be switched off when the vehicle is at a
standstill.
WARNING
While the engine is running or starting it could help reduce the risk of se-
rious injury.
● Never start or leave the engine running in poorly ventilated or closed
spaces. Exhaust gas contains carbon monoxide, a toxic, colourless and
odourless gas. Carbon monoxide can cause people to lose conscious-
ness. It can also cause death.
● Never leave the vehicle unattended if the engine is running. The vehi-
cle could move off suddenly or something unexpected could happen re-
sulting in damage and serious injury.
● Never use start boosters. Cold start sprays could explode or increase
the engine speed unexpectedly.

175
Driving
WARNING
Cold start sprays could explode or cause a sudden increase in the engine
speed.
● Never use start boosters.
CAUTION
● An attempt to start the engine while driving or starting the engine imme-
diately after turning it off can cause damage to the engine or starter motor.
● When the engine is cold, avoid high revs and heavy acceleration and do
not make the engine work hard.
● Do not push or tow start the engine. Unburnt fuel could damage the cat-
alytic converter.
For the sake of the environment
Do not warm the engine at idle speed; start driving immediately if the visi-
bility is OK. This helps the engine reach operating temperature faster and
reduces emissions.
Note
● For example, if the key battery is very worn or flat, the engine cannot be
started with the starter button. In this case, remove the ignition button from
the lock and insert the key.
● Electrical components with a high power consumption are switched off
temporarily when the engine starts.
● When the engine is started cold, there may be strong vibrations for a few
moments for technical reasons. This is quite normal, and no cause for con-
cern.
● At temperatures below +5 °C (+41 °F), smoke may be given off below the
vehicle when the additional heater is connected. Stopping the engine
Complete operations only in the sequence given:
Step 1.Stopping the vehicle completely
⇒ .
2.Press the brake pedal and keep pressed until step 4 has been
completed.
3.In automatic gearboxes, put the selector lever in position P.4.Connect the electronic parking brake ⇒ page 185.5.Turn the key in the ignition lock to position ⇒ Fig. 129 0.6.With a manual gearbox, put the vehicle in first or reverse gear.
WARNING
Never switch off the engine while the vehicle is moving. You may lose
control of the vehicle and there is a risk of serious accident.
● The airbags and belt tensioners do not work when the ignition is
switched off.
● The brake servo does not work with the engine off. To stop, the brake
pedal must be pressed with more force.
● As the power steering does not work if the engine is not running, you
will need more strength to steer than normally.
● If the key is removed from the ignition, the steering may lock and it
will not be possible to steer the vehicle.
CAUTION
If the engine has been driven at high speed for a prolonged period of time,
it may overheat when turned off. To avoid engine damage, allow the engine
to run for approximately two minutes in neutral before switching it off.
Safety FirstOperating instructionsPractical TipsTechnical Specifications

182Driving
Changing gears with Tiptronic*
Fig. 135 Selector lever
in Tiptronic position (left-
hand drive vehicles). The
lay-out in right-hand
drive vehicles is symmet-
rically opposed.
Fig. 136 Steering wheel
with two paddle shifts for
Tiptronic
The Tiptronic system allows you to manually change gears in vehicles with
an automatic gearbox. When you change to the Tiptronic programme, the
vehicle remains in the currently selected gear. This is possible as long as
the system is not changing gear automatically due to a traffic situation. Using Tiptronic with the selector lever
●
Press the selector lever from position D to the right into the Tiptronic se-
lector gate ⇒
in Automatic gearbox*: Selecting gears on page 181.
● Press the lever forwards + or backwards – to move up or down a gear
⇒ Fig. 135.
Using the Tiptronic with the steering wheel paddle shifts
● In D or S, move the steering wheel paddle shifts ⇒ Fig. 136.
● Pull the right-hand side paddle + OFF
⇒ Fig. 136 towards the steering
wheel to step up a gear.
● Pull the left-hand side paddle –
⇒ Fig. 136 towards the steering wheel
step down a gear.
If the paddles are not used for a period of time, the vehicle leaves Tiptronic
mode.
CAUTION
● When accelerating, the gearbox automatically shifts up into the next
gear shortly before the maximum engine speed is reached.
● When reducing speed manually, the gear box only shifts gear when the
engine can no longer exceed the maximum engine speed.
Driving with an automatic gearbox
The gearbox changes gear ratios automatically as the vehicle moves.
Driving down hills
The steeper the gradient, the lower the gear you will need. The lowest gears
increase the engine braking work. Never go down hills with the selector lev-
er in neutral N.

184Driving
Recommended gear display
In some vehicles, the recommended gear for reducing fuel consumption is
displayed on the instrument panel:
displayMeaning
Optimum gear.
Recommendation to change up a gear.
Recommendation to change down a gear.
Information for cleaning the diesel particulate filter
The exhaust gas system control recognises when the diesel particulate filter
is blocked, and helps to clean it by recommending a specific gear for driv-
ing. It may therefore be necessary to drive with the engine at an exception-
ally high speed ⇒ page 232.
WARNING
The recommended gear display is intended as a guideline only; it should
never replace the driver's attention to driving carefully.
● Responsibility for selecting the correct gear for each situation contin-
ues to lie with the driver, for example when overtaking, climbing a hill or
towing a trailer.
For the sake of the environment
Selecting the most appropriate gear for the situation will help you to save
fuel.
Note
The recommended gear display is switched off when the clutch pedal is
pressed.