Handbrake - automatic transmission38 Brake pedal (automatic transmission)38
Turn signal system
38
Cruise control system
38
Main beam
38
/ Safety belt (belt status display) - rear seat
38
City Safe Drive
39
/
START-STOP
39
The warning lights indicate certain functions or faults.
The lighting up of some warning lights may be accompanied by acoustic sig-
nals.
After switching on the ignition, some warning lights light up briefly as a func-
tion test.
If the tested systems are OK, the corresponding warning lights extinguishes
for a few seconds after switching on the ignition or after starting the engine.
WARNING■ Ignoring light-up indicator lamps in the instrument cluster and the control
symbols in the display may cause serious injury or damage to the vehicle.■
If you have to stop for technical reasons, then park the vehicle at a safe
distance from the traffic, switch off the engine and activate the hazard
warning light system » page 50. The warning triangle is set up at the pre-
scribed distance - observe the national legal provisions when doing so.
■
The engine compartment of your car is a hazardous area. The following
warning instructions must be followed at all times when working in the en-
gine compartment » page 107, Engine compartment .
Handbrake
Read and observe
on page 34 first.
The warning light
illuminates if the handbrake is applied. An audible warn-
ing is also given if you drive the vehicle for at least 3 seconds at a speed of
more than 6 km/h.
Braking system
Read and observe
on page 34 first.
The indicator light
illuminates if the brake fluid level in the braking system
is too low or there is a fault in the ABS.
›
Stop the vehicle, switch off the engine, and check the level of the brake flu-
id » page 113 » .
WARNING■
If the warning light illuminates together with the warning light
» page 37 , Antilock brake system (ABS) , stop driving! 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!
Seat belt warning light
Read and observe
on page 34 first.
The warning light
illuminates as a reminder for the driver and front passen-
ger to fasten seat belts.
The indicator light
goes off after the respective seat belt has been fastened.
If the driver or front passenger has not fastened their seat belt and the vehicle
speed is more than 20 km/h, the warning light
flashes and you will hear an
acoustic signal.
The warning signal is switched off and the indicator light is
permanently il-
luminated if the driver and front passenger have not fastened their seat belts
within the next 90 seconds.
Further information » page 11, Seat belts .
Alternator
Read and observe
on page 34 first.
The warning light
illuminates when the engine is running but the vehicle
battery is not charging.
Seek assistance from a specialist garage immediately.
34Using the system
CAUTIONIf in addition to the symbol the symbol » page 35 illuminates while driv-
ing, stop driving - risk of engine damage! Switch off the engine and seek as-
sistance from a specialist garage.
Engine oil
Read and observe
on page 34 first.
When the warning light is
illuminated or is flashing , the engine oil pressure
is too low.
An audible signal sounds as a warning.
›
Stop the vehicle and switch the engine off if the warning light does not ex-
tinguish or if it begins to flash while you are driving.
›
Check the oil level and top up with engine oil if necessary
» page 110, Check-
ing the oil level .
If the oil level is within the specified range and the warning light illuminates
or blinks again after the engine is started, do not continue driving! Switch
off the engine and seek assistance from a specialist garage.
CAUTION
■ The red oil pressure light is not an oil level indicator! One should there-
fore check the oil level at regular intervals, preferably after every refuelling
stop.■
Stop driving if for some reason it is not possible to top up the engine oil
under the current conditions. Switch off the engine and seek assistance from a
specialist garage.
Coolant
Read and observe
on page 34 first.
If the warning light
illuminates or flashes , either the coolant temperature is
too high or the coolant level is too low.
An audible signal sounds as a warning tone.
›
Stop the vehicle, switch off the engine, and check the coolant lev-
el » page 112 , Checking the coolant level .
›
If the coolant level is too low, add coolant to the reservoir » page 112.
Do not continue if for some reason it is not possible to fill with coolant under
the current circumstances! This can cause serious engine damage. Therefore,
switch the engine off and seek help from a specialist garage.
If the coolant is within the specified range, the increased temperature may be
caused by an operating problem at the radiator fan.›
Switch off the ignition.
›
Check the fuse for the radiator fan, replace if necessary » page 137, Fuses in
the engine compartment .
If the coolant level and fan fuse are OK and the warning light
illuminates
again after switching on the ignition,
stop driving!
Seek help from a specialist garage.
WARNING■ Carefully open the coolant expansion bottle. If the engine is hot, the cool-
ing system is pressurized – risk of scalding! It is therefore best to allow the
engine to cool down before removing the cap.■
Do not touch the radiator fan. The radiator fan may switch itself on auto-
matically even if the ignition is off - a danger of injury is present!
CAUTION
■ Additional headlights and other attached components in front of the air inlet
impair the cooling efficiency of the coolant.■
Never cover the radiator - there is a risk of the engine overheating.
Automated transmission
Read and observe
on page 34 first.
Warning light
If the warning light
illuminates and a beep sounds, then there is a fault to
the automated transmission.
Do not drive the vehicle! Switch off the engine
and seek assistance from a specialist garage.
Warning light
If the warning light
illuminates and no gear change is possible, there may
be technical reasons for why the functionality of the automatic transmission is
limited.
›
Stop the car, turn the ignition off and on again.
35Instruments and control lights
If the warning light illuminates after you switch on the ignition, seek assis-
tance from a specialist garage.
If the warning light
or also the warning light
illuminates and an acoustic
signal sounds, this means that the automatic gearbox has overheated.›
Stop and allow the transmission to cool down or drive more quickly than
20 km/h (12 mph).
If the warning light
illuminates repeatedly , park the vehicle, shut off the en-
gine and allow the gearbox to cool down.
Further information » page 80, Automated transmission .
Power steering
Read and observe
on page 34 first.
If the warning light
or
illuminates while driving or after switching on the
ignition does not extinguish, there is an error in the electromechanical power
steering.
If the indicator light
illuminates, this indicates a
complete failure of the
power steering and the steering assist has failed (significantly higher steering
forces).
If the indicator light
illuminates, this indicates a
partial failure of the power
steering and the steering forces can be greater.
›
Stop the car, turn the ignition off and on again.
If the indicator light does not illuminate after the engine has been turned on
again, the power steering is fully operational again.
If the warning light illuminates again, then immediately obtain assistance from
an authorised dealer.
Note
If the vehicle's battery has been disconnected and reconnected, the warning
light illuminates after switching on the ignition. If the warning light does
not extinguish after moving a short distance, this means there is an error in
the system. Seek assistance from a specialist garage immediately. Electronic Stability Control (ESC)
Read and observe
on page 34 first.
The warning light
flashes to show that the ESC is currently operating.
If the warning light
illuminates , there is a fault in the ESC. Seek assistance
from a specialist garage immediately.
As the ESC operates in conjunction with the ABS, the ESC warning light will al-
so come on if the ABS system fails.
If the warning light
illuminates immediately after you start the engine, the
ESC might be switched off due to technical reasons.
›
Switch the ignition off and on again.
If the indicator light
does not illuminate after you switch the engine back
on, the ESC is fully functional again.
Further information » page 84, Electronic Stability Control (ESC) .
Note
If the vehicle's battery has been disconnected and reconnected, the warning
light illuminates after switching on the ignition. If the warning light does
not extinguish after moving a short distance, this means there is an error in
the system. Seek assistance from a specialist garage immediately.
Traction Control System (TCS)
Read and observe
on page 34 first.
The warning light
flashes it shows that the TCS currently operating.
If the warning light
illuminates permanently, there is a fault in the TCS.
Seek assistance from a specialist garage immediately.
The fact that the TCS operates together with the ABS means that the TCS
warning light will also come on if the ABS system is not operating properly.
If the warning light
illuminates immediately after you start the engine, the
TCS might be switched off due to technical reasons.
›
Switch the ignition off and on again.
If the warning light
does not illuminate after you switch the engine back
on, the TCS is fully functional again.
Further information » page 85, Traction Control System (TC) .
36Using the system
NoteIf the vehicle's battery has been disconnected and reconnected, the warning
light illuminates after switching on the ignition. If the warning light does
not extinguish after moving a short distance, this means there is an error in
the system. Seek assistance from a specialist garage immediately.
Antilock brake system (ABS)
Read and observe
on page 34 first.
If the warning light
is illuminated , there is a fault in the ABS.
The vehicle will only be braked by the normal brake system without the ABS.
Seek assistance from a specialist garage immediately.
In the event of an ABS fault, the other braking and stabilization systems are
turned off » page 84, Braking and stabilisation systems .
WARNING■
A fault to the ABS system or the braking system can increase the vehi-
cle's braking distance – risk of accident!■
If the ABS warning light
together with the indicator light
» page 34
lights,
do not continue to drive! Seek help from a specialist garage.
Tyre pressure
Read and observe
on page 34 first.
The warning light
is illuminated
If the warning light
illuminates while driving, it means one of the tyres has
undergone a pressure change.
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 118 .
›
Correct the tyre pressure if necessary or replace the affected
wheel » page 124 or use the repair kit » page 127.
›
Save the tyre pressure values in the system » page 92.
The indicator light flashes for about 1 min. and remains illuminated
If the warning light flashes for approximately 1 minute and stays illumina-
ted, 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 again after the engine has started, there is a
system error.
Seek help from a specialist garage.
The following reasons can explain the warning light
being illuminated.
› The vehicle is loaded on one side. Distribute loads as evenly as possible.
› The wheels of one axle are loaded more heavily (e.g. when towing a trailer or
when driving uphill or downhill).
› Snow chains are mounted.
› A wheel has been changed.
Save the tyre pressure values in the system » page 92.
CAUTION
Under certain circumstances (e.g. sporty style of driving, wintry or unpaved
roads) the warning light in the instrument cluster can be delayed or does
not light up at all.
Note
If the vehicle's battery has been disconnected and reconnected, the warning
light illuminates after switching on the ignition. If the indicator light does
not extinguish after moving a short distance, this means that there is an error
in the system. Seek help from a specialist garage.
Rear fog light
Read and observe
on page 34 first.
The warning light
illuminates when the rear fog light is switched on.
Exhaust inspection system
Read and observe
on page 34 first.
If the warning light
illuminates , there is a fault in the exhaust inspection
system. The system allows the vehicle to run in emergency mode.
Seek assistance from a specialist garage immediately.
37Instruments and control lights
Engine performance checkRead and observe
on page 34 first.
If the indicator light
illuminates , there is a fault in the engine control. The
system allows the vehicle to run in emergency mode.
Seek assistance from a specialist garage immediately.
Airbag system
Read and observe
on page 34 first.
Monitoring the airbag system
If the warning light does not go out for some seconds after the ignition has
been switched on or illuminates while you are driving, there is a fault in the
system »
. This also applies if the warning light does not come on when the
ignition is switched on.
The operational capability of the airbag system is monitored electronically, in-
cluding when one of the airbags is switched off.
One of the airbags or a belt tensioner has been disabled by the diagnostic
tool
› The warning light
illuminates for approx. 4 seconds after switching on the
ignition and then flashes again for approx. 12 seconds afterwards.
The front passenger airbag has been disabled with the key switch
› The warning light
illuminates for a few seconds when the ignition is
switched on;
› The deactivated airbag is indicated by the illumination of the warning light
in the middle of the dash panel
» page 18, Deactivating
the front passenger airbag .
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.
Handbrake - automatic transmission
Read and observe
on page 34 first.
If the warning light
illuminates or blinks, engage the handbrake.
Further information » page 80, Automated transmission .
Brake pedal (automatic transmission)
Read and observe
on page 34 first.
If the warning light
illuminates , operate the brake pedal.
Further information » page 80, Automated transmission .
Turn signal system
Read and observe
on page 34 first.
Either the left or right
indicator light
flashes depending on the position of
the control lever.
If there is a fault in the turn signal system, the warning light flashes at twice
its normal rate.
Switching off the hazard warning light system is switched on will cause all of
the turn signal lights as well as both warning lights to flash.
Cruise control system
Read and observe
on page 34 first.
The warning light
illuminates when the cruise control is active.
Main beam
Read and observe
on page 34 first.
The warning light
illuminates when the main beam or the headlight flasher
is operated.
/ Safety belt (belt status display) - rear seat
Read and observe
on page 34 first.
After switching on the ignition, illumination takes place in the display of the
instrument cluster for 30 s of the symbols or
.
38Using the system
The control symbols or indicate whether any passengers have put on their
seat belts in the rear seats.
The passenger on the associated rear seat is belted.
The passenger on the associated back seat is not wearing a seat belt.
If a seat belt is unfastened on the rear seat during the journey at a speed of
more than 25 km/h, an acoustic signal will sound, and the belt status indicator
for the rear seats
flashes for around 30 seconds.
Further information » page 11, Seat belts .
City Safe Drive
Read and observe
on page 34 first.
If the indicator symbol
flashes rapidly, the City Safe Drive system brakes the
car brakes automatically straight away.
If the indicator symbol
flashes slowly , the system is not available or there is
a system malfunction.
If the system is turned off and the vehicle is moving at a speed of about 5-30
km/h, illumination occurs on the display of the instrument cluster of he warn-
ing symbol .
If the system is activated again, the warning light
in the instrument clus-
ter display illuminates for about 5 s .
Further information » page 90, City Safe Drive .
/ START-STOP
Read and observe
on page 34 first.
A glowing indicator symbol
shows the START-STOP system is active.
A glowing indicator symbol
shows the START-STOP system is active, but no
automatic engine cut-off is possible.
A flashing indicator symbol
shows the START-STOP system is not available.
Further information » page 88, START-STOP .
Unlocking and opening
Unlocking and locking
Introduction
This chapter contains information on the following subjects:
Unlock / lock using key and lock
40
Unlocking / locking with the remote control key
41
Opening/closing a door
41
Door opening lever
42
Safe securing system
42
Locking / unlocking the vehicle with the central locking button
43
Child safety lock
43
The central locking system allows you to lock and unlock all doors and the lug-
gage compartment lid at the same time » page 44.
The safe securing system » page 42 is integrated in the central locking sys-
tem. Once the car is locked from the outside, the door locks 1)
are automatically
blocked by the safe securing system »
.
The following is true after unlocking
› All the doors and the boot lid are unlocked.
› The interior light operated via the door contact illuminates.
› The safe securing system is switched off 1)
.
› The indicator light in the driver door stops flashing.
The following is true after locking
› All the doors and the luggage compartment lid are locked.
› The interior light operated via the door contact goes out.
› The safe securing system is switched on 1)
.
› The warning light in the driver door begins flashing.
Fault display
If the warning light in the driver's door initially flashes quickly for around 2 sec-
onds, and then illuminates for 30 seconds without interruption before flashing
again slowly, you will need to seek the assistance of a specialist garage.
1)
This function only applies to certain countries.
39Unlocking and opening
WARNING■Greater physical effort is required for braking when the engine is switch-
ed off – risk of accident!■
The clutch pedal must be actuated when braking on a vehicle with man-
ual gearbox, when the vehicle is in gear and at low revs. Otherwise, the
functionality of the brake system may be impaired – risk of accident!
■
When leaving the vehicle, never leave persons who might, for example,
release the handbrake or take the vehicle out of gear unattended in the ve-
hicle. The vehicle could then start to move – risk of accident!
■
Observe the recommendations on the new brake pads » page 82, New
brake pads .
CAUTION
Never let the brakes slip with light pressure on the pedal if braking is not nec-
essary. This causes the brakes to overheat and can also result in a longer brak-
ing distance and excessive wear.
Information on braking
Read and observe
and on page 78 first.
Wear-and-tear
The wear of the brake pads is dependent on the operating conditions and driv-
ing style.
The brake pads wear more quickly if a lot of journeys are completed in towns
and over short distances or if a very sporty style of driving is adopted.
Under these severe conditions , the thickness of the brake pads must also be
checked by a specialist garage between service intervals.
Wet roads or road salt
The performance of the brakes can be delayed as the brake discs and brake
pads may be moist or have a coating of ice or layer of salt on them in winter.
The brakes are cleaned and dried by applying the brakes several times »
.
Corrosion
Corrosion on the brake discs and dirt on the bake 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 »
.
Long or steep slopes
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. Any additional braking should be com-
pleted intermittently, not continuously.
Emergency brake display
If the brakes are applied in full and the control unit for the braking system con-
siders the situation to be dangerous for the following traffic, the brake light
flashes automatically.
After the speed was reduced below around 10 km/h or the vehicle was stop-
ped, the brake light stops flashing and the hazard warning light system
switches on. The hazard warning light system is switched off automatically af-
ter accelerating or driving off again.
Faults in the brake surface
If it is found that the braking distance has suddenly become longer and that
the brake pedal can be depressed further, the brake system may be faulty.
Visit a specialist garage immediately and adjust your style of driving appropri-
ately as you will not know the exact extent of the damage.
Low brake fluid level
An insufficient level of brake fluid may result in problems in the brake system.
The level of the brake fluid is monitored electronically » page 34,
Braking
system .
Brake booster
The brake booster increases the pressure generated with the brake pedal. The
brake booster only operates when the engine is running.WARNINGOnly apply the brakes for the purpose of drying and cleaning the brake
discs if the traffic conditions permit this. Do not place any other road users
in jeopardy.78Driving
Automatically switching over from natural gas mode to petrol mode
The vehicle automatically switches from natural gas to petrol, for example, if one of the following cases occurs.
› With an empty gas tank or not enough pressure in the tank.
› After refuelling with natural gas.
› At very low surrounding temperatures.
Gas smell
If you smell gas proceed as follows.
› Stop the vehicle.
› Put out cigarettes.
› Switch off the ignition.
› Open doors and the boot lid to ventilate the vehicle sufficiently.
› Remove any spark producing or incendiary items from the car and immedi-
ately switch off.
› Do not continue if the odour persists.
Seek help from a specialist garage to correct the gas system fault.
Regular gas system checks must be carried out in a specialist workshop on
natural gas-powered vehicles.WARNINGWhen operating a CNG-powered vehicle, the national legal requirements
must be observed.WARNINGDo not underestimate the smell of gas in the car or when refuelling - it may
result in fire, explosion and injury.
Engine compartment
Introduction
This chapter contains information on the following subjects:
Opening and closing the bonnet
108
Engine compartment overview
109
Radiator fan
109
Windscreen washer system
109WARNINGInjuries or scolding or risks of accident or fire may occur when working in
the engine compartment. For this reason, it is essential to comply with the
warning instructions outlined below and with the general applicable safety
rules. The engine compartment of your car is a hazardous area!WARNINGInstructions before beginning work in the engine compartment■Turn off the engine and withdraw the ignition key.■
Firmly apply the handbrake.
■
For vehicles with manual transmission the lever into the neutral position.
■
For vehicles with automated manual transmission, shift the lever to posi-
tion N.
■
Allow the engine to cool.
■
Never open the bonnet if you can see steam or coolant escaping from the
engine compartment – risk of scalding! Wait until no more steam or coolant
is escaping.
WARNINGInformation for working in the engine compartment■Keep all people, especially children, away from the engine compartment.■
Never touch the radiator fan while the engine is still warm. The fan might
suddenly start running!
■
Do not touch any hot engine parts – risk of burns!
WARNINGInformation for working in the engine compartment with the engine run-
ning■
Pay particular attention to moving engine parts, e.g. V-ribbed belt, gener-
ator, radiator fan - danger to life!
■
Never touch the electric wiring on the ignition system.
■
Avoid short circuits in the electrical system – particularly on the vehicle's
battery.
■
Always make sure that no jewellery, loose clothing or long hair can get
caught in rotating engine parts – risk to life! Always remove any jewellery,
tie back long hair and wear tight fitting clothing before completing any
work.
107Inspecting and replenishing