80Cockpit
Coolant level* / temperature
The warning lamp lights up if the coolant temperature is too
high or if the coolant level is too low.
There is a fault if:
● The warning symbol does not go out again after a few seconds.
● The warning lamp lights up or flashes while the vehicle is moving, and
three acoustic warning signals ⇒
are emitted.
This means that either the coolant level is too low or the coolant tempera-
ture is too high.
Coolant temperature too high
The instrument panel displays the following message 1)
: CHECK COOLANT IN-
STRUCTION MANUAL. ⇒ page 226.
First look at the coolant temperature gauge. The coolant temperature is too
high if the needle is over the warning area on the dial. Stop the vehicle,
switch the engine off and wait for it to cool down. Check the coolant level.
If the coolant level is correct, the overheating may be caused by a malfunc-
tion of the radiator fan. Check the radiator fan fuse and have it replaced if
necessary ⇒ page 255.
If the warning lamp lights up again after driving on for a short distance,
stop the vehicle and switch the engine off . Contact an Authorised Service
Centre or a specialised workshop.
Coolant level too low
The instrument panel displays the following message 1)
: STOP CHECK COOL-
ANT INSTRUCTION MANUAL.
First look at the coolant temperature gauge. If the needle is in the normal
range, top up with coolant at the earliest opportunity ⇒
.
WARNING
● If your vehicle is immobilised for technical reasons, move it to a safe
distance from traffic. Turn the engine off, turn the hazard lights on and
place the warning triangle.
● Never open the bonnet if you can see or hear steam or coolant escap-
ing from the engine compartment. Risk of scalding. Wait until you can no
longer see or hear escaping steam or coolant.
● The engine compartment is a dangerous area! Before carrying out any
work in the engine compartment, switch off the engine and allow it to
cool down. Always note the corresponding warnings ⇒ page 219.
Rear fog light
This warning lamp lights up when the rear fog light is switched on . For
further information see ⇒ page 113.
Turn signals
The indicator lamp flashes when the turn signals are in op-
eration.
Depending on which turn signal is operating, either the left or right
turn signal lamp flashes. Both indicator lamps will flash at the same time
when the hazard warning lights are switched on.
If any of both turn signals fails, the indicator lamp will start flashing twice
faster than normal.
1)
Depending on the version of the model.
82Cockpit
Anti-lock brake system (ABS)*
A warning lamp monitors the ABS.
The indicator lamp should light up for a few seconds when the ignition is
switched on. It goes out again after the system has run through an automat-
ic test sequence.
There is a fault in the ABS if:
● The warning lamp 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, without the ABS function.
Take the vehicle to a specialised workshop as soon as possible. For further
information on the ABS go to ⇒ page 187.
If a fault occurs in the ABS, the ESC* (ESP) warning lamp will also light up.
Brake system fault
If the ABS warning lamp lights up together with the brake warning lamp
, this indicates not only a fault in the ABS function, but also a possible
fault in the brake system ⇒
.
WARNING
● Before opening the bonnet, read and observe the warnings on
⇒ page 219, Working in the engine compartment.
● If the brake warning lamp should light up together with the ABS
warning lamp , stop the vehicle immediately and check the brake fluid
level in the reservoir ⇒ page 231, Brake fluid. If the fluid level has drop-
ped below the “MIN” mark you must not drive on. Risk of accident. Ob-
tain technical assistance.
● If the brake fluid level is correct, the fault in the brake system may
have been caused by a failure of the ABS system. This could cause the
rear wheels to lock quickly when you brake. This could cause the rear to
break away. Risk of skidding. Stop the vehicle and seek technical assis-
tance.
Washer fluid
This warning lamp lights up to indicate that the windscreen
washer level is too low. This serves as a reminder to fill up the reservoir at the earliest opportunity
⇒ page 228
The following message is shown on the instrument panel display* 1)
: REFILL
WINDSCREEN WASHER FLUID .
1)
Depending on the version of the model.
83
Cockpit
Alternator
This warning lamp signals a fault in the alternator.
The warning lamp lights up when the ignition is switched on. It should
go out when the engine has started running.
If the warning lamp lights up while driving, the alternator is no longer
charging the battery. You should immediately drive to the nearest special-
ised workshop.
You should avoid using electrical equipment that is not absolutely necessa-
ry because this will drain the battery.
Worn brake pads
If the symbol lights up, have the front brake pads (and, for safety rea-
sons, the rear pads as well) inspected by a specialised workshop. Tyre pressure
The tyre pressure control system controls the tyre speed and
the frequency spectrum of each tyre.
Fig. 50 Centre console:
tyre monitor system but-
ton
The tyre warning lamp 1)
compares wheel revolutions and with this informa-
tion, the diameter of each wheel using the ESC (ESP) sensors. If the diame-
ter of a wheel changes, the tyre warning lamp lights up. The wheel diam-
eter changes when:
● Tyre pressure is insufficient.
● The tyre structure is damaged.
● The vehicle is unbalanced because of a load.
● The wheels of one axle are under more pressure (for example, driving
with a trailer or on extreme slopes).
● The vehicle is fitted with snow chains.
1)
Depending on the model version
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
84Cockpit
● The temporary spare wheel is fitted.
● The wheel on one axle is changed.
Tyre pressure adjustment
Following the modification to tyre pressure or after changing one or more
wheels, the button ⇒ fig. 50 must be kept pressed while the ignition is on
until an acoustic signal is heard and the warning lamp goes out.
If the wheels are under excessive load (for example, driving with a trailer or
heavy load), the tyre pressure must be increased to the recommended value
for a full load (see the sticker on the inside of the fuel flap). If the tyre moni-
tor system button is pressed down, the new tyre pressures are confirmed.
The tyre pressure warning lamp lights up
If the tyre pressure of one or more wheels is much lower than the value set
by the driver, the tyre control warning lamp lights up ⇒
.
The tyre pressure warning lamp flashes
If the tyre pressure warning lamp flashes, this indicates a fault. Go to the
nearest specialist workshop.
WARNING
● When the tyre pressure warning lamp lights up, reduce speed imme-
diately and avoid any sudden manoeuvre or braking. Stop when possible,
and check the tyre pressure and status.
● The driver is responsible for maintaining correct tyre pressures. For
this reason, tyre pressure must be regularly checked.
● Under certain circumstances (for example, when driving in a sports-
like manner, in winter conditions or on a dirt track) the tyre warning lamp
may light up or function incorrectly.
Note
If the battery is disconnected, the yellow warning lamp lights up after
turning the ignition on. This should turn off after a brief journey.
Bulb defect
The warning lamp lights up when a bulb in the vehicle's ex-
terior lighting is defective.
The warning lamp lights up when a bulb in the vehicle's exterior lighting
(e.g. left-hand main beam) is defective.
The instrument panel displays the following message 1)
: LEFT FULL BEAM
FAULTY.
Brake system*
This warning lamp lights up if the brake fluid level is too low
or if there is a fault in the system.
This warning lamp lights up if
● the brake fluid level is too low ⇒ page 231.
The instrument panel displays the following message 1)
: STOP BRAKE FLUID
INSTRUCTION MANUAL.
● there is a fault in the brake system.
The instrument panel displays the following message 1)
: BRAKE SYSTEM
FAULT INSTRUCTION MANUAL.
1)
Depending on the version of the model.
86Cockpit
Indicator for open doors or tailgate*
This warning lamp lights up if one of the doors or the tail-
gate is open.
The warning light should go off when all the doors are closed correctly.
The system also works when the ignition is switched off. It should go off ap-
prox. 15 seconds after the vehicle is locked.
Electromechanical steering*
For vehicles with power steering, the level of steering assistance depends
on the vehicle's speed and on the steering angle.
The warning lamp should light up for a few seconds when the ignition is
switched on. It should go out once the engine is started.
If the battery is disconnected, the indicator remains lit, even with the en-
gine running. The warning light only goes off after a distance of approx.
There is a fault in the electromechanical steering system if the lamp does
not go out or lights up whilst the vehicle is in motion. The warning lamp
may appear in two different colours to indicate faults. If it lights yellow, this
indicates a minor fault. If it lights red, seek workshop assistance immedi-
ately, as the steering assistance is not working; in this case you should not
keep driving. Stop the vehicle and seek technical assistance. The power
steering does not work if the battery is flat or if the engine is off (for exam-
ple, for towing). You should take into account that you will need considera-
bly more power than normal to steer the vehicle if the power steering is not
working correctly or at all. For those vehicles fitted with ESC* (ESP) the function “Recommended steer-
ing manoeuvre” is included. See
⇒ page 189.
Emission control system*
This warning lamp monitors the exhaust system.
Warning lamp flashes:
When there is misfiring that can damage the catalytic converter. Reduce
speed and drive carefully to the nearest specialised workshop to have the
engine checked.
The instrument panel displays the following message 1)
: EXHAUST GAS SEE
WORKSHOP
Warning lamp is lit:
If a fault has developed during driving which has reduced the quality of the
exhaust gas (e.g. lambda probe fault). Reduce speed and drive carefully to
the nearest specialised workshop to have the engine checked.
The following message is shown in the instrument panel display: EXHAUST
GAS SEE WORKSHOP .
1)
Depending on the version of the model.
50 m.
87
Cockpit
Electronic Stability Control ESC (ESP) * /
There are two control lamps for the electronic stability con-
trol. The lamp provides information concerning the func-
tion and the provides information on the disconnection
status
Both lamps come on together when the ignition is switched on and should
go out after approx. 2 seconds, which is how long the function check lasts.
This programme includes the ABS, EDL and ASR (TCS). This also includes
the brake assist system (BAS), automatic cleaning of the brake discs and
the trailer stability programme (TSP).
The warning lamp has the following functions: ● It flashes when the ASR (TCS)/ESC (ESP) is activated when driving.
● It will light up continuously if there is a malfunction in the ESC (ESP).
● The ESC (ESP) lamp will also come on if a fault should occur in the ABS
because the ESC (ESP) operates in conjunction with the ABS.
If the ESP warning lamp lights up and stays on after the engine is started,
this may mean that the control system has temporarily switched off the ESP.
In this case the ESC (ESP) can be reactivated by switching the ignition off
and then on again. If the warning lamp goes out, this means the system is
fully functional.
The lamp provides information about the disconnection status of the
system:
● It stays lit when the ASR (TCS) is disconnected after pressing the
switch. Differential lock fault (EDL)*EDL operates along with the ABS in vehicles equipped with
the Electronic Stability Control ESC* (ESP)
A malfunction in the EDL is indicated by the ABS warning lamp . Take the
vehicle to a specialised workshop as soon as possible. For further informa-
tion on the EDL see ⇒ page 190, Electronic differential lock (EDL)*.
Traction control system ASR (TCS)* /
The traction control system prevents the driven wheels from
spinning when the vehicle is accelerating
There are two warning lamps for the traction control system: and . Both
lamps come on together when the ignition is switched on and should go out
after approx. 2 seconds, which is how long the function check lasts.
The lamp has the following function:
● It flashes when the ASR (TCS) is activated while driving.
If the system is deactivated or if it has any fault, the warning lamp will re-
main lit. The ASR (TCS) lamp will also come on if a fault should occur in the
ABS because the ASR (TCS) operates in conjunction with the ABS. For fur-
ther information, see ⇒ page 187, Brakes
The lamp provides information about the disconnection status of the
system:
● It stays lit when the ASR (TCS) is disconnected after pressing the OFF
switch.
By pressing again, the ASR (TCS) function is reactivated and the warning
lamp switched off.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
118Lights and visibility
Dynamic cornering lights* (AFS)
The dynamic cornering lights only operate if the vehicle is travelling at more
than 10 km/h and the dipped headlights are on. When taking a bend, the
road is illuminated better with directional gas discharge bulbs than with
conventional fixed headlights.
A fault in the system is indicated via the flashing of the control lamp on
the instrument panel. At the same time, a text message with information or
instructions to perform necessary operations may appear on the instrument
panel display. Take the vehicle to a specialised workshop and have the fault
repaired.
If the control bulb lights up on the instrument panel but all the bulbs are
operating correctly, there may still be a fault in the dynamic curve lighting
system (AFS). Take the vehicle to a specialised workshop and have the fault
repaired.
WARNING
If the “automatic dipped beam control” is switched on, the dipped beam
headlights will not be switched on in fog. They should be switched on
manually using the light switch. The driver is personally responsible for
the correct use of lights in all situations. “Automatic headlight control”
is merely a system to support the driver. Where necessary, switch on the
lights manually using the light switch.
Hazard warning lights
The hazard warning lights are used to draw the attention of
other road users to your vehicle in emergencies.
Fig. 75 Dash panel:
switch for hazard warning
lights
If your vehicle breaks down:
1. Park your vehicle at a safe distance from moving traffic.
2. Press the button to switch on the hazard warning lights ⇒
.
3. Switch the engine off.
4. Apply the handbrake.
5. On a manual gearbox engage 1st gear. On an automatic, move the selector lever to P.
6. Use the warning triangle to draw the attention of other road users to your vehicle.
120Lights and visibility
Signalling a lane change
–Push the lever up 1
or down 2 to the point where you incur
resistance and then release it. The turn signal will flash several
times. The corresponding warning lamp will also flash.
Switching main beam on and off
– If the dipped lights are on, push the lever forward ⇒ fig. 76 3
to switch on the main beam.
– Push the lever towards the steering wheel ⇒ fig. 76 4
to switch
off the main beam.
Headlight flashers
– Pull the lever towards the steering wheel 4
to operate the
flasher.
Switching on parking lights
– Switch the ignition off and remove the key from the lock.
– Move the lever up or down to turn the right or left-hand parking
lights on, respectively.
WARNING
The main beam can dazzle other drivers. Risk of accident! Never use the
main beam headlights or the headlight flasher if they could dazzle other
drivers.
Note
● The turn signals only work when the ignition is switched on. The corre-
sponding warning lamp or flashes in the instrument panel. The warn-
ing lamp flashes when the turn signals are operated, provided a trailer is
correctly attached and connected to the vehicle. If a turn signal bulb is de-
fective, the warning lamp flashes at double speed. If the trailer turn signal
bulbs are damaged, warning lamp does not light up. Change the bulb.
● The main beam headlights can only be switched on if the dipped beam
headlights are already on. The warning lamp then comes on in the instru-
ment panel.
● The headlight flasher comes on for as long as you pull the lever – even if
no other lights are switched on. The warning lamp then comes on in the
instrument panel.
● When the parking lights are switched on, the headlight and the tail light
on the corresponding side of the vehicle light up. The parking lights will on-
ly work if the key is removed from the ignition. If the lights are switched on,
an acoustic signal will be emitted while the driver door is open.
● If the turn signal lever is left on after the key has been taken out of the
ignition lock, an acoustic signal sounds when the driver door is opened.
This is a reminder to switch off the turn signal, unless of course you wish to
leave the parking light on.