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Safety FirstOperating instructionsTips and MaintenanceTe c h n i c a l D a t a
– Switch off the engine and remove the key from the ignition lock.
Turn the steering wheel slightly to engage the steering lock.
– Always take you car keys with you when you leave the vehicle
Ÿ.
Additional notes on parking the vehicle on gradients:
Turn the steering wheel so that the vehicle would roll against the kerb if it did
start to roll.
•If the vehicle is facing downhill, turn the front wheels so that they point
towards the kerb.
•If the vehicle is facing uphill, turn the front wheels so that they point away
from the kerb.
WARNING
Take measures to reduce the risk of injury when you leave your vehicle
unattended.
•Never park where the hot exhaust system could ignite inflammable
materials, such as dry grass, low bushes, spilt fuel etc.
•Never allow vehicle occupants to remain in the vehicle when it is
locked. They would be unable to open the vehicle from the inside, and
could become trapped in the vehicle in an emergency. In the event of an
emergency, locked doors will delay assistance to occupants.
•Never leave children unsupervised in the vehicle. They could set the
vehicle in motion, for example, by releasing the handbrake or the gear
lever / selector lever.
•Depending on weather conditions, it may become extremely hot or cold
inside the vehicle. This can be fatal.
Parking distance warning system
Description
The parking distance warning system is a parking aid which
draws your attention to obstacles in front or behind the
vehicle.
The parking distance warning system assists the driver when parking. If the
rear of the vehicle is approaching an obstacle, an intermittent sound signal is
emitted. The shorter the distance, the shorter the intervals between tones. If
the vehicle is too close to the obstacle, the sound signal becomes constant.
The distance to an obstacle at the front is indicated via a high tone and via a
low tone at the rear. The shorter the distance, the shorter the intervals
between tones. If the vehicle is too close to the obstacle, the sound signal
becomes constant.
The obstacle may no longer be detected if the vehicle gets even closer to it!
The warning signal will stop when
•the vehicle moves away from the obstacle
•the outer sensors measure a constant distance for approximately 3
seconds.
The signal will not be switched off once the vehicle has reached the perma-
nent tone area.
Registering the obstacle
•Outer sensors front and rear: as of approx. 80 cm
•Centre sensors at the front: as of approx. 120 cm
•Centre sensors at the rear: as of approx. 160 cm
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Safety FirstOperating instructionsTips and MaintenanceTe c h n i c a l D a t a
Cruise control system (CCS)
Cruise control operation
The cruise control system(CCS) is able to maintain the set
speed in the range from approx. 30 km/h to 180 km/h.
Once the desired speed has been reached and the setting stored, you may
take your foot off the accelerator.
In vehicles fitted with a manual gearbox and in vehicles with an automatic
gearbox with the lever in positions P, N or R the cruise control does not
operate in first gear.
WARNING
It could be dangerous to use the cruise control system (CCS) if it is not
possible to drive at constant speed.
•Do not use the cruise control in heavy traffic or on steep roads, with
several bends or in slippery circumstances (snow, ice, rain or loose gravel),
as there is a risk of accident.
•Always adapt your speed and the distance to the vehicles ahead to take
the traffic situation into consideration. This is the duty of the driver. The
cruise control system is merely an aid to the driver.
•Never use the cruise control system when driving off-road or on
unpaved roads . This feature is designed for use on paved roads only. Risk
of accident.
•Always switch off the CCS when you have finished using it. This will
prevent you using it by mistake.
•It is dangerous to use a set speed which is too high for the prevailing
road, traffic or weather conditions. This may cause an accident.
Caution
if the cruise control is activated the gearbox should not be set in neutral
without first releasing the clutch, as the engine speed will increase and this
may cause damage.
Note
When travelling down hills, the CCS cannot maintain a constant speed. The
vehicle will accelerate under its own weight. Reduce gears (with an automatic
gearbox, reduce gears using the “Tiptronic”) or brake using the footbrake.
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Safety FirstOperating instructionsTips and MaintenanceTe c h n i c a l D a t a
Tips and Maintenance
Intelligent technology
Brakes
Brake servo
The brake servo supplements the pressure you exert on the brake pedal. It
works only when the engine is running.
If the brake servo does not operate, for example, when the vehicle is being
towed or due to a fault in the system, the brake pedal must be depressed
harder.
WARNING
The braking distance can also be affected by external factors.
•Never let the vehicle coast with the engine switched off. Failure to do so
could result in an accident. The braking distance is increased considerably
as the brake servo does not function.
•If the brake servo is out of action, for example if the car is being towed,
you will have to press the brake pedal considerably harder than normal.
Brake pads wear display I
If this light comes on, check the brake pads immediately.
At the same time, a text message or the necessary operations may appear on
the instrument panel .
WARNING
If the warning lamp lights up I or the corresponding message appears on
the instrument panel, immediately have the brake pads checked and
replaced, if necessary, at a specialised workshop.
Brake warning lamp H
If the warning lamp comes on, this may be caused by the
following reasons:
•With the handbrake on the warning light comes on H on the instrument
panel. If you are travelling at over 6 km/h with the hand brake on, a text
message or the required operations may appear on the instrument panel. In
addition a warning signal is heard.
•In the event of insufficient brake fluid the warning lamp lights up H on
the instrument panel. At the same time, a text message or the necessary oper-
ations may appear on the instrument panel . Stop the vehicle immediately
and check the level of the brake fluid Ÿpage 221
•In the event of a fault in the brake system the warning lamp lights up H
on the instrument panel and three buzzes are emitted. At the same time, a
text message or the necessary operations may appear on the instrument
panel . Stop the vehicle and do not drive on. You should obtain professional
assistance. This warning lamp
H can light up together with the anti-locking
brake system warning lamp J Ÿ.
Intelligent technology 180
WARNING
Special care must be taken when working on the engine or on components
in the engine compartment.
•It is important that you read and observe the corresponding warnings
before working in the engine compartment Ÿpage 209.
•If the brake warning symbol does not go out, or if it lights up when
driving, the brake fluid level in the reservoir is too low or there is a fault in
the brake system. Risk of accident. Stop the vehicle and do not drive on.
You should obtain professional assistance.
•If the brake warning lamp H lights up together with the ABS warning
lamp J, the control function of the ABS could be out of action. This could
cause the rear wheels to lock quickly when you brake. This could cause the
rear to break away. Risk of skidding. Drive carefully to the nearest qualified
workshop and have the fault corrected.
Brake assist system (BAS)
The brake servo (BAS) works only when the engine is running.
In an emergency, most drivers brake in time, but not with maximum force.
This results in unnecessarily long braking distances.
The brake assist system intervenes here: if you press the brake pedal very
quickly, the brake assist system registers an emergency situation. It then very
quickly builds up the full brake pressure so that the ABS can be activated
more quickly and efficiently, thus reducing the braking distance.
Do not reduce the pressure on the brake pedal. The brake assist system
switches off automatically as soon as you release the brake.
WARNING
Try to always adapt the speed of the vehicle to weather, road and traffic
conditions. Do not let the extra safety afforded by the system tempt you
into taking any risks when driving. Risk of accident.
•The risk of accident is higher if you drive too fast, if you do not keep
your distance from the car in front, and when the road surface is slippery or
wet. The increased accident risk cannot be reduced by the brake assist
system.
•The brake assist system cannot defy the laws of motion. Slippery and
wet roads are dangerous even with the brake assist system!
•Modifications to the vehicle or work carried out incorrectly (e. g. to the
engine, the brake system, running gear or any components affecting the
wheels and tyres) could affect the efficiency of the ABS, EDL, ESP and TCS
and lessen their efficiency.
Anti-locking brake system (ABS)
The anti-lock brake system prevents the wheels locking
during braking.
The anti-lock brake system (ABS) is an important part of the car's active safety
system.
How the ABS works
If one of the wheels is turning too slowly in relation to the road speed, and is
close to locking, the system will reduce the pressure for this wheel. The driver
is made aware of this control process by a pulsating of the brake pedal and
audible noise. This is a deliberate warning to the driver that one or more of
the wheels is tending to lock and the ABS control function has intervened. In
this situation it is important to keep the brake pedal fully depressed so the
ABS can regulate the brake application. Do not “pump” the brake pedal.
Intelligent technology181
Safety FirstOperating instructionsTips and MaintenanceTe c h n i c a l D a t a On braking sharply on slippery ground, this system helps to keep the vehicle
under control, as the wheels do not lock.
However, ABS will not necessarily guarantee shorter braking distances in all
conditions. The braking distance could even be longer if you brake on gravel
or on fresh snow covering a slippery surface.
WARNING
Try to always adapt the speed of the vehicle to weather, road and traffic
conditions. Do not let the extra safety afforded by the system tempt you
into taking any risks when driving. Risk of accident.
•The anti-lock brake system cannot defy the laws of motion. Slippery
and wet roads are dangerous even with ABS! If you notice that the ABS has
been activated, you should reduce speed immediately to suit the road and
traffic conditions.
•The ABS cannot reduce the risk of accident if, for example, you are
driving with an unsuitable load or too close to the preceding vehicle.
WARNING
•Modifications to the vehicle or work carried out incorrectly (e. g. to the
engine, the brake system, running gear or any components affecting the
wheels and tyres) could affect the efficiency of the ABS, EDL, ESP and TCS
and lessen their efficiency.
•The effectiveness of ABS is also determined by the tyres fitted
Ÿpage 225.
ABS warning lamp J
The warning lamp monitors the ABS.
The warning lamp Jshould light up for a few seconds when the ignition is
switched on. It goes out again after the system has run through an automatic
test sequence.
There is a fault in the ABS if:
•The ABS warning lamp J does not light up when the ignition is switched
on.
•The warning lamp does not go out again after a few seconds.
•The warning lamp lights up when the vehicle is moving.
The vehicle can still be braked in the normal way (except that the ABS control
function is out of action). Please take the vehicle to a qualified workshop as
soon as possible.
If a fault occurs in the ABS, the ESP warning lamp will also light up
42).
Brake system fault
If the ABS warning lamp
J lights up together with the brake warning lamp H, this indicates not only a fault in the ABS function, but also a possible fault
in the brake system Ÿ.
At the same time, a text message or the necessary operations may appear on
the instrument panel .
WARNING
Special care must be taken when working on the engine or on components
in the engine compartment.
•It is important that you read and observe the corresponding warnings
before working in the engine compartment Ÿpage 209.
42)Optional equipment