Safety
Passive Safety
General information
Introduction
This chapter contains information on the following subjects:
Before setting off
12
Driving safety
12
This section of the manual includes important information on the subject of
passive safety. We have combined everything here which you should be famili-
ar with, for example, regarding seat belts, airbags, safety of children and any-
thing similar.
Other important safety information can also be found in the following chapters
of this Owner´s Manual. The Owner´s Manual should therefore always be in
the vehicle.
Before setting off
For your own safety and the safety of the people travelling with you, please
pay attention to the following points before setting off.
▶ Check the function of the lighting and turn signal systems.
▶ Check the function of the wipers and check the wiper blades for wear. Check
the windscreen washer fluid level.
▶ Ensure that all of the windows offer good visibility to the outside.
▶ Adjust the rear-view mirror so that vision to the rear is guaranteed. Ensure
that the mirrors are not covered.
▶ Check the tyre inflation pressure.
▶ Check the engine oil, brake fluid and coolant level.
▶ Secure all items of luggage.
▶ Do not exceed the permissible axle loads and permissible gross weight of the
vehicle.
▶ Close all doors as well as the bonnet and boot lid.
▶ Ensure that no objects can obstruct the pedals.
▶
Protect children by using a suitable child seat » page 23, Transporting chil-
dren safely .
▶ Adopt the correct seated position. Instruct your passengers to assume the
correct seated position » page 12, Correct and safe seated position .
Driving safety
In the interests of traffic safety, the following information must be observed. ▶ Do not become distracted from concentrating on the traffic situation, (e.g. by
your passengers or mobile phone calls).
▶ Never drive when your driving ability is impaired, (e.g. due to medication, al-
cohol or drugs).
▶ Keep to the traffic regulations and the permissible speed limit.
▶ Always adjust the driving speed to the road, traffic and weather conditions.
▶ Take regular breaks on long journeys (at least every two hours).
Correct and safe seated position
Introduction
This chapter contains information on the following subjects:
Driver’s correct seated position
13
Adjusting the steering wheel position
13
Passenger’s correct seating position
14
Passengers’ correct seating position on the rear seats
14
Always assume the correct seated position before setting off and do not
change this position while driving. Also advise your passengers to adopt the
correct seated position and not to change this position while the car is moving.
The following list contains instructions for the Passenger which, if not ob-
served, may cause serious injuries or death. ▶ Do not lean against the dash panel.
▶ Do not put your feet on the dash panel.
The following list contains instructions for all Passengers which, if not ob-
served, may cause serious injuries or death.
▶ Do not sit only on the front part of the seat.
▶ Do not sit facing to the side.
▶ Do not lean out of the window.
▶ Do not put your limbs out of the window.
▶ Do not put your feet on the seat cushion.
12Safety
Airbag deploymentFig. 10
Inflated airbags
The airbag system is only functional when the ignition is switched on.
When triggered, the airbag is filled with gas and unfolds. The inflation of the
airbag is carried out in a fraction of a second.
Upon inflation of the airbag, smoke is released. This is not an indication of a fire in the vehicle.
Triggering conditions
It is not possible to generally determine which deployment conditions apply to
the airbag system in every situation. Important here is the hardness of the ob-
ject on which the vehicle impacts, the impact angle, the vehicle speed, etc.
The deceleration plays an important role in the deployment of the airbags. If
the vehicle deceleration which occurs and is measured during the collision re-
mains below the prescribed reference values specified in the control unit, the
airbags are not deployed although the vehicle may well suffer severe damage
to the bodywork as a consequence of the accident.
The following airbags will be deployed in the event of a severe frontal
collision.
▶ Driver’s front airbag.
▶ Front passenger airbag.
▶ Driver’s knee airbag.
The following airbags will be deployed in the event of a severe side collision.
▶ Front side airbag.
▶ Rear side airbag.
▶ Head airbag.
When an airbag is deployed, the following events occur. ▶ The hazard warning lights are switched on.
▶ All doors are unlocked.
▶ The fuel supply to the engine is interrupted.
▶ The interior light comes on (if the automatic operation of the interior light is
switched on - switch
).
When there is no air bag deployment?
With minor frontal and side collisions, rear collision, overturning of the vehicle
or vehicle roll-over there is no airbag deployment.
Safety instructions
Fig. 11
Safe distance from the steering
wheel and the dashboard
WARNINGGeneral information■The best possible protective effect of the seat belts and the airbag sys-
tem can only be achieved in the correct seated position » page 12 .■
The airbag develops considerable forces when triggered, which can lead
to serious injuries or even death if the correct seating position or seated
position is not observed. This applies in particular to children who are
transported without using a suitable child safety seat » page 25.
■
If there is a fault, have the airbag system checked immediately by a spe-
cialist garage. Otherwise, there is a risk of the airbag not being activated in
the event of an accident.
20Safety
Parking on a slope that is too steep Illumi-
nates
Parking brake: gradient too steep. Log book!GRADIENT TOO STEEP
▶ Find a parking space on a flat surface or on a slope that is not so steep.
Brake system
Read and observe
on page 34 first.
illuminates – the brake fluid level in the brake system is too low.
▶ Stop the vehicle, switch off the engine, and check the level of the brake fluid
» page 282 .
WARNING■
If the warning light lights up at the same time as warning light
» page 36 , Anti-lock braking system (ABS) , do not continue your
journey! Seek help from a specialist garage.■
A fault to the ABS system or the braking system can increase the vehi-
cle's braking distance – risk of accident!
Front seat belt warning light
Read and observe
on page 34 first.
lights up - the driver or front passenger has not fastened their seat belt.
At a speed of more than approximately 30 km/h, the warning light flashes
and an audible warning sounds at the same time.
If the seat belt is not fastened by the driver or front passenger during the next
approx. 2 minutes, the warning signal is deactivated and the warning light
illuminates permanently.
Adaptive cruise control (ACC)
Read and observe
on page 34 first.
illuminates - the ACC delay is not sufficient.
▶ Apply the brake.
For more information about the ACC system » page 243.
Power steering / steering lock (KESSY system)
Read and observe
on page 34 first.
Fault in the power steering
lights up – this indicates a complete failure of the power steering and the
steering assist is no longer working (significantly higher steering forces).
lights up – this indicates a partial failure of the power steering and the
steering forces can be greater.
▶ Seek help from a specialist garage.
Steering lock defect (KESSY system)
An audible signal sounds as a warning.
flashes
Steering column lock faulty. Stop!STOP VEHICLE STEERING FAULTY
▶ Park the vehicle,
stop driving ! After switching off the ignition, it is no lon-
ger possible to lock the steering, to activate the electrical components (e.g.
Infotainment ), to switch on the ignition again and to start the engine. Seek
help from a specialist garage.
flashes
Steering lock: Workshop!STEERING WORKSHOP
▶ You can drive on, exercising appropriate caution. Seek assistance from a spe-
cialist garage immediately.
Steering column lock not unlocked (System KESSY)
flashes
Move the steering wheel!MOVE STEERING WHEEL
▶ Move the steering wheel slightly back and forth, thereby facilitating unlock-
ing the steering lock.
▶ If the steering does also not unlock then, the help of a specialist garage is
required.
Disconnecting the vehicle battery
If the vehicle's battery has been disconnected and reconnected, the indicator
light comes on after switching on the ignition.
The warning light should go out after driving a short distance.
If, after the motor is restarted and a short drive, the indicator light does not go
out, there is a system error.
35Instruments and warning lights
EPC warning light (petrol)Read and observe
on page 34 first.
lights up – there is a fault in the engine management system. The system
makes it possible to drive on in emergency mode - there may be a noticeable
reduction in engine performance.
▶ You can drive on, exercising appropriate caution. Seek assistance from a spe-
cialist garage immediately.
Safety systems
Read and observe
on page 34 first.
System fault
lights up - there is a fault in the airbag system.
Error: AirbagAIRBAG ERROR
▶
Seek help from a specialist garage.
The front passenger airbag has been disabled with the key switch
illuminates for around 4 seconds after the ignition has been switched on.
One of the airbags or a belt tensioner has been disabled by the diagnostic
tool
illuminates for around 4 seconds after the ignition is switched on and then
flashes for approximately 12 seconds.
Airbag/ belt tensioner deactivated.AIRBAG/ BELT TENSIONER OFF
ProActive passenger protection
illuminates and the following message is shown in the information cluster
display.
Proactive passenger protection not available.PROACTIVE PASSENGER PROTECT NOT AVAIL
or
Proactive passenger protection: function restricted.LIMITED PROACTIVE PASSENGER PROTECT
The seat belt for the driver and front passenger needs to be replaced.
▶ Seek help from a specialist garage.WARNINGWhen a fault in the airbag system occurs, there is a risk of the system not
being triggered in the event of an accident. Therefore, this must be
checked immediately by a specialized garage.
Tyre pressure
Read and observe
on page 34 first.
Change of tyre pressure values
lights up - there was a pressure change in one of the tyres.
An audible signal sounds as a warning. ▶ Immediately reduce speed and avoid sudden steering and braking manoeu-
vres.
▶ Stop the vehicle, turn the ignition off and check the tyres and their inflation
pressures » page 286 .
▶ Correct the tyre pressure if necessary or replace the affected wheel
» page 291 or use the repair kit » page 295.
▶ Save the tyre pressure values in the system » page 260.
System fault
flashes for approximately 1 minute and remains lit – there may be a fault in
the tyre pressure monitoring system.
▶ Stop the vehicle, turn the ignition off and start the engine again.
If the warning light flashes after starting the engine again, there is a system
error.
▶ You can drive on, exercising appropriate caution. Seek assistance from a spe-
cialist garage immediately.
Disconnecting the vehicle battery
If the vehicle's battery has been disconnected and reconnected, the indicator
light comes on after switching on the ignition.
The warning light should go out after driving a short distance.
If, after a short drive, the indicator light does not go out, there is a system er-
ror.
▶ You can drive on, exercising appropriate caution. Seek assistance from a spe-
cialist garage immediately.
37Instruments and warning lights
Auto Hold functionRead and observe
on page 34 first.
illuminates - the Auto Hold function is activated.
For more information about the Auto-Hold Function » page 207.
Main beam
Read and observe
on page 34 first.
lights up – the main beam or the headlight flasher is switched on.
Automatic gearbox
Read and observe
on page 34 first.
Gearbox overheated
The warning light is only shown in the MAXI DOTdisplay.
Illumi-
nates
Gearbox overheated. You can drive on.GEARBOX OVERHEATED
Transmission overheated. You can drive on, exercising appropriate caution.
Illumi-
nates
Gearbox overheated. Stop! Log book!STOP VEHICLE GEARBOX OVERHEAT
▶
Do not drive the vehicle! Stop the vehicle and turn off the engine.
You can continue your journey as soon as the warning light disappears.
▶ If the warning light do not go out,
stop driving! Seek help from a specialist
garage.
Transmission problem
The warning light is only shown in the MAXI DOTdisplay.
Illumi-
nates
Gearbox faulty. Stop the vehicle safely!GEARBOX FAULTY WORKSHOP Illumi-
nates
Gearbox in emergency mode. No reverse gear.GEARBOX ERROR REV_ GEAR NOT AVAIL Illumi-
nates
Error: gearbox. Speed is limited.GEARBOX ERROR▶ You can drive on, exercising appropriate caution. Seek assistance from a spe-
cialist garage immediately.
Rear seat belt warning light
Read and observe
on page 34 first.
lights up – a rear seat belt is not fastened.
lights up – a rear seat belt is fastened.
When the seat belt is fastened/unfastened, the particular light lights up briefly
and indicates the current belt status!
Generator
Read and observe
on page 34 first.
lights up – the battery is not being charged whilst the engine is running.
CAUTION
If in addition to the light
the light lights up while driving, stop driving -
risk of engine damage! Switch off the engine and seek assistance from a spe-
cialist garage.
Coolant
Read and observe
on page 34 first.
Coolant level too low
Illumi-
nates
ENGINE COOLANT PLEASE CHECK Log book!ENGINE COOLANT PLEASE CHECK
▶ Stop the vehicle, switch off the engine and let it cool.
▶ Check the coolant level » page 282.
If the coolant level is within the specified range and the warning light lights
up again, then there may be a malfunction of the cooling fan.
▶ Switch off the ignition.
▶ Check the fuse for the radiator fan, replace if necessary.
If the coolant level and fan fuse are both OK but the warning light lights up
again,
stop driving!
▶ Seek help from a specialist garage.
39Instruments and warning lights
Coolant temperature too high Illumi-
nates
Engine overheat. Stop! Log book!ENGINE OVERHEAT STOP
▶ Stop the vehicle, switch off the engine and let it cool.
▶ Continue your journey only after the warning light
has disappeared.
Engine oil pressure
Read and observe
on page 34 first.
flashes – the engine oil pressure is too low.
▶ Stop the vehicle, switch off the engine, and check the engine oil level.
▶ If the warning light flashes,
stop driving , even if the oil level is OK! Also do
not leave the engine running at an idling speed.
▶ Seek help from a specialist garage.
CAUTION
If it is not possible to top up with engine oil under the given conditions, stop
driving - there is a risk of engine damage! Switch off the engine and seek as-
sistance from a specialist garage.
Engine oil level
Read and observe
on page 34 first.
Engine oil level too low
Illumi-
nates
Oil level: add oil!ADD OIL
▶ Stop the vehicle, switch off the engine, and check the engine oil level, top up
if necessary.
The warning light will go out if the bonnet is left open for more than 30 sec-
onds. If the engine oil is not replenished, the warning light will come on again
after driving about 100 km.
Engine oil level too high
Illumi-
nates
Reduce oil level!OIL LEVEL TOO HIGH
▶ Stop the vehicle, switch off the engine, and check the engine oil level.
▶ If the oil level is too high, you can driven on, exercising appropriate caution.
Seek assistance from a specialist garage immediately.
Fault on the engine oil level sensor Illumi-
nates
Oil sensor: Workshop!OIL SENSOR WORKSHOP
▶ You can drive on, exercising appropriate caution. Seek assistance from a spe-
cialist garage immediately.
CAUTION
If it is not possible to top up with engine oil under the given conditions, stop
driving - there is a risk of engine damage! Switch off the engine and seek as-
sistance from a specialist garage.
AdBlue ®
(diesel engine)
Read and observe
on page 34 first.
AdBlue ®
level too low
Information on the amount of AdBlue ®
to be added is also shown. The values
"min" and "max" stand for the minimum and maximum AdBlue ®
replenishment
amounts.
Illuminates
AdBlue (DEF) refill! Range: ...REFILL ADBLUE (DEF)... RANGE_ ...
The range in the display indicates the distance that can be driven with the re-
maining AdBlue ®
left in the tank.
▶ Add AdBlue ®
» page 277 .
Illumi-
nates
AdBlue (DEF) refill! No start in ...REFILL ADBLUE (DEF)_...NO START IN …
The value in the display indicates the distance that can still be travelled, after
which no engine restart is possible unless AdBlue ®
is added.
▶ Add AdBlue ®
» page 277 .
Illumi-
nates
AdBlue (DEF) refill! Engine start no longer possible.REFILL ADBLUE (DEF)... NO RESTART
It is no longer possible to start the engine.
▶ Add AdBlue ®
» page 277 .
AdBlue ®
fault
Illumi-
nates
Error: AdBlue (DEF). No engine start in ...ADBLUE (DEF) ERROR NO START IN …
40Operation
Brakes and Parking
Introduction
This chapter contains information on the following subjects:
Electric parking brake
206
Auto Hold function
207
Parking
208
The wear of the brake pads is dependent on the operating conditions and driv-
ing style. Under difficult conditions (e.g. urban, sporty driving style) the condi-
tion of the brakes should also be checked by a specialist garage between the
service intervals.
The performance of the brakes can be delayed if the brakes are damp, iced up
in winter or if covered in a layer of salt . The brakes are cleaned and dried by
applying the brakes several times »
.
Corrosion on the brake discs and dirt on the brake pads occur if the vehicle has
been parked for a long period and if you do not make much use of the braking
system. The brakes are cleaned by applying the brakes several times »
.
Before travelling a long distance with a steep gradient , reduce speed and
shift into the next lowest gear. As a result, the braking effect of the engine will
be used, reducing the load on the brakes. If you do have to brake, this should
be carried out at intervals.
Emergency braking display - when an emergency braking is performed, the
automatic flashing of the brake lights are used to alert the traffic behind.
New brake pads must first be “worn in” because these do not initially have the
best possible braking effect. Drive especially carefully for the first 200 km or
so.
A too low brake fluid level can cause faults in the braking system , the warn-
ing light illuminates in the instrument cluster
» page 35,
Brake system
. If
the warning light does not illuminate and an extended stopping distance is re-
quired, then driving should be adapted according to the unknown cause of
fault and restricted braking effect - seek the assistance of a specialist garage
immediately.
The brake booster increases the pressure generated with the brake pedal. The
brake booster only operates when the engine is running.
WARNING■ Greater physical effort is required for braking when the engine is switch-
ed off – risk of accident!■
During the braking procedure on a vehicle with manual transmission,
when the vehicle is in gear and at low revs, press the clutch pedal. Other-
wise, the functionality of the brake system may be impaired – risk of acci-
dent!
■
Do not press the brake pedal if braking is now required. This causes the
brakes to overheat and can also result in a longer braking distance and ex-
cessive wear - risk of accident!
■
Braking for the purpose of drying and cleaning the brake discs should be
carried out only if the traffic conditions permit. Do not place any other road
users in jeopardy.
■
Recommendations for new brake pads have to be observed.
■
When stopping and parking, the parking brake should always be on, oth-
erwise the vehicle could move off - there is the risk of an accident!
■
If a front spoiler, full wheel trim, etc. is mounted retrospectively, it must
be ensured that the air supply to the front wheel brakes is not reduced.
Otherwise, the functionality of the brake system may be impaired – risk of
accident!
Electric parking brake
Fig. 255
Parking brake button
206Driving
Assist systems
General information
Introduction
This chapter contains information on the following subjects:
Radar sensor
215WARNING■ The assistance systems only serve to support the driver and do not re-
lieve the driver of the responsibility for driving the vehicle.■
The increased safety provision, as well as the increased occupant protec-
tion provided by the assistance systems must not tempt you to take risks -
risk of accident!
■
Adjust the speed and driving style to the current visibility, weather, road
and traffic conditions.
■
The assistance systems have physical and system-related limitations. For
this reason, the driver may experience some undesired or delayed system
responses in certain situations. You should therefore always be alert and
ready to intervene!
■
Only enable, disable or set the assistance systems when you have the car
fully under control, in every traffic situation - risk of accident!
Radar sensor
Fig. 264
Installation location of the radar
sensor
Read and observe on page 215 first.
The radar sensor (hereinafter referred to only sensor) uses electromagnetic
waves to capture the traffic situation ahead of the vehicle. The radar is located
under a cover » Fig. 264.
The sensor is part of the ACC » page 243 and Front Assist » page 248systems.
The sensor function may be impaired in the event of one of the following sit-
uations arising. ▶ The sensor cover is soiled (e.g. with mud, snow and the like).
▶ The area in front of and around the sensor cover is obscured (e.g. by labels,
auxiliary headlights and the like(.
▶ When visibility is poor (e.g. fog, heavy rain, thick snowfall).
▶ In exceptional cases, the sensor may be covered in the area beneath the cov-
er, e.g. due to snow.
If the sensor cover or the sensor is dirty or covered, a message to that effect
from the ACC system » page 248, Malfunctions or Front Assist » page 251, Mal-
functions system appears in the instrument cluster display.WARNING■
If you suspect that the sensor is damaged, deactivate the ACC system and
Front Assist system » page 245, » page 250 . Have the sensor checked by a
specialist garage.■
A collision or damage in the front or lower area of the vehicle could affect
the sensor function - there is risk of accident! Have the sensor checked by
a specialist garage.
■
Do not cover the area in front of and around the sensor cover. This can
lead to impaired function of the sensor - risk of accident!
CAUTION
Remove snow with a brush and ice with a solvent-free de-icer from the sensor
cover.
Braking and stabilisation systems
Introduction
This chapter contains information on the following subjects:
Stability Control (ESC)
216
ESC Sport
216
Anti-blocking system (ABS)
216
Engine drag torque control (MSR)
216
Traction control (ASR)
217
Electronic Differential Lock (EDL and XDS)
217
Active steering assist (DSR)
217
215Assist systems