Cockpit
76
WARNING
•Failure to observe warning lamps and warning messages can result in
serious personal injury or damage to your vehicle.
Item
Symbol
Meaning of warning
and control lamps
Further
information
Fuel level / reserve
⇒ page 77
Coolant level / coolant temperature
⇒page 77
Rear fog light switched on
⇒page 78
Turn signals in operation
⇒page 78
Engine fault (petrol engine)
⇒page 78
Glow plug system for diesel engine
⇒page 78
Main beam switched on
⇒page 79
Pollen accumulation in the diesel
engine particulate filter
⇒page 79
ABS system fault
⇒page 79
Windscreen washer fluid level
⇒page 80
Alternator fault
⇒page 80
Fasten seat belts!
⇒page 19
Tyre pressure
⇒page 80
Airbag or belt tension device system
fault or airbag disabled
⇒page 27
⇒ page 30
A1A2A3A4A5A6A7A8A9A10A11A12A13
Bulb defective
⇒ page 82
Parking brake applied
or low brake fluid level or
fault in brake system
⇒page 81
Engine oil pressure
⇒page 82
Cruise control system switched on
⇒page 82
Door open indicator
⇒page 82
Electromechanical steering
⇒page 82
Fault in the emission control system
⇒page 83
If flashing: electronic stabilisation pro-
gramme (ESP) or the TCS is working or
deactivated
If it remains lit: ESP malfunction or off
⇒page 83
⇒ page 156
Automatic selector lever lock (auto-
matic gearbox)
⇒page 84
SAFE
Electronic immobiliser
⇒page 84
Item
Symbol
Meaning of warning
and control lamps
Further
information
A14A15A16A17A18A19A20A21A22
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Cockpit79
Safety First
Controls and equipment
Practical tips
Technical Data
Main beam headlights
This warning lamp lights up when the main beams are on.The warning lamp
is switched on once main beams are on or once the
headlight flasher is operating.
Further information ⇒ page 118.
Soot accumulation in the diesel engine particulate filter
If the indicator lights
you may help the filter clear itself by driving in the
appropriate manner.
To do this, drive about 15 minutes in 4th or 5th gear (automatic gearbox: S
gear range) at a speed of 60 km/h, with the engine running at approximately
2000 rpm. In this way, the pollen build up in the filter is burned. When
cleaning is successful, the indicator turns off.
If the indicator
is not deactivated, bring the vehicle to a specialised work-
shop to repair the fault.
WARNING
•Always drive according to the road weather conditions, the terrain and
traffic. Driving recommendations should never lead to illegal manoeuvres
in surrounding traffic.•The diesel engine particulate filter may reach extremely high tempera-
tures; it should not enter into contact with flammable materials under-
neath the vehicle. Failure to comply could result in fire.
Anti-lock brake system (ABS)
A warning lamp system monitors the ABS.
The warning 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 automatic
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 (except that the ABS control
function will not function). Please take the vehicle to a qualified workshop as
soon as possible. For further information on the ABS see the ⇒page 181.
If a fault occurs in the ABS, the 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 215, “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 227, “Brake fluid”. If the fluid level has
dropped below the “MIN” mark you must not drive on. Risk of accident.
Obtain 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
Leon_EN.book Seite 79 Dienstag, 8. September 2009 5:25 17
Cockpit
82•If the brake warning lamp
lights up together with the ABS warning
lamp
, 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. Stop the vehicle and seek technical
assistance.
Bulb defect
The warning lamp lights up when a bulb in the vehicle's exte-
rior 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 dash panel displays the following message
15): LEFT FULL BEAM
FAULTY .
Engine oil pressure
This warning lamp indicates that the engine oil pressure is
too low.If this warning symbol starts to flash, and is accompanied by three audible
warnings, switch off the engine and check the oil level. If the oil level is too
low, add more engine oil ⇒page 218. The dash panel displays the following message
16):
STOP ENGINE OIL
PRESSURE INSTRUCTIONS MANUAL .
If the symbol flashes although the oil level is correct, do not drive on. The
engine must not even run at idle speed. Obtain technical assistance.
Cruise control system*
The warning lamp comes on when the cruise control system
is switched on.The warning lamp
l i g h t s u p w h e n t h e c r u i s e co n t r o l s y s te m is s wi tch e d o n .
Further notes on the cruise control system ⇒ page 176.
Indicator for open doors or tailgate*
This indicator lights if one of the doors or the tailgate 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
approx. 15 seconds after the vehicle is locked.
Power steering system*
For vehicles with power steering, the level of steering assistance depends on
the vehicle's speed and on the steering angle.
15)Depending on the version of the model.WARNING (continued)
16)Depending on the version of the model.
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Lights and visibility
114Activating daytime lights (bi-xenon lamps)
With the ignition switched off, move the indicator and main beam lever
upwards and back (left indicator and headlamp flash).
Switch on the ignition for 3 seconds. The daytime lights are activated and can
be switched on.
Note
Please observe any relevant legal requirements which may apply in your
country.Coming/leaving home function*
The Coming Home function is controlled manually. The
Leaving Home function is controlled with a photo sensor.If the Coming Home or Leaving Home function is connected, the front side
and dipped lights, the tail lights and the registration plate light will light up
to provide assistance.
Coming home function
The Coming Home function is activated by switching off the ignition and
briefly flashing the lights. When the driver's door is opened, the Coming
Home lighting comes on. If the driver's door is already open when the lights
are flashed briefly, the Coming Home lighting comes on immediately.
When the last door of the vehicle or the tailgate is closed, the Coming Home
function starts and the switching off the headlights is delayed.
The Coming Home lighting switches off in the following cases:•On completion of the time period established for the delay in switching off
the lights after all the vehicle doors and the tailgate have been closed.
•If, 30 seconds after being connected, any doors or the tailgate remain
open.•If the light switch is turned to position
.
•If the ignition is switched on.
Leaving home function
The Leaving Home function is activated when the vehicle is unlocked if:•the light control is in position
and
•the photo sensor detects “darkness”.
The Leaving Home lighting switches off in the following cases:•If the time period for the delay in switching off the headlamps has ended•If the vehicle is locked again.•If the light switch is turned to position
.
•If the ignition is switched on.Note
The setting for the delay in switching off the headlamps in the Coming Home
and Leaving Home function can be changed or the function can be connected
or disconnected in the menu Lights and visibility ⇒ page 74.•If the ignition key is removed while the lights are on, and the lights are
flashed briefly and the driver's door opened, no acoustic signal is heard, as
when the Coming Home function is on, the lights are automatically switched
off after a period of time (except when the light switch is in position
or
.
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Lights and visibility115
Safety First
Controls and equipment
Practical tips
Technical Data
Instrument and switch lighting / Headlight range controlInstrument and switch lighting
When the headlights are switched on, the brightness of the instruments and
switch lighting can be regulated to suit your requirements by turning the
thumb wheel ⇒fig. 74 .
The instrument lighting (dials and needles), the centre console illumination
and the illumination of the displays are regulated by a light sensor incorpo-
rated in the dash panel.
The instrument lighting (dials and needles) is switched on when the ignition
is on and the vehicle lights are off . The instrument lighting is dimmed auto-
matically as the daylight starts to fade. It goes out completely when the
ambient light level is very low. This function is intended to remind the driver
to switch on the dipped-beam headlights in good time when light conditions
become poor.
Headlight range control
By using the electrical headlight range control, you can adjust the head-
light range to the load level that is being carried in the vehicle. This way, it is possible to avoid dazzling oncoming traffic more than necessary. At the same
time, by using the correct headlight settings, the driver has the best possible
lighting for the road ahead.
The headlights can only be adjusted when the dipped beam is switched on.
To lower the beam, turn the thumb wheel down from the basic setting
0.
Dynamic headlight range control
Vehicles with gas discharge lamps (“xenon lamps”) are equipped with
dynamic headlight range control . This means that the headlights will be
adjusted to suit the load level of the vehicle and “nodding movements” when
pulling off and braking are automatically compensated for.
Vehicles with gas discharge lamps do not have headlight range control.
Adaptive headlights* (for driving through bends)
When driving around bends, the headlights will light the
most important areas of the road.
Fig. 74 Instrument panel:
regulation for instrument
and switch illumination
and headlight range
control
A1
A1A2
A2
A2
Fig. 75 Cornering
lighting using self-direc-
tional headlights
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Lights and visibility
118Indicator and main beam headlight lever
The turn signal and main beam lever also operates the
parking lights and the headlight flasher.The turn signal and main beam headlight lever has the following
functions:
Switching on the turn signals
– Move the lever all the way up ⇒fig. 77 to indicate right , and
all the way down to indicate left .
Signalling a lane change
– Push the lever up or down 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
– Turn the light switch to position
.
–Press the lever forward ⇒fig. 77 to switch on the main
beams.
– Pull the lever back towards you to switch the main beam head- lights off again.
Headlight flashers
– Pull the lever towards the steering wheel 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 on the dash panel. The warning 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 defective, the
warning lamp flashes at double speed. If the trailer turn signal bulbs are
damaged, warning lamp
does not light up. Change the bulb.
Fig. 77 Indicator and
main beam headlight
lever
A1
A2A1
A2
A3
A4
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Lights and visibility119
Safety First
Controls and equipment
Practical tips
Technical Data
•The main beam headlights can only be switched on if the dipped beam
headlights are already on. The warning lamp
then lights up on the dash
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 lights up on the
dash panel.
•When the parking lights are switched on, the headlight and the rear light
on the corresponding side of the vehicle light up. The parking lights will only
work if the key is removed from the ignition. If the lights are switched on, a
buzzer gives an audible warning 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.
Interior lightsFront interior light The switch ⇒fig. 78 is used to select the following positions:
Courtesy light position
Rocker switch in flat position (not activated). The interior lights are automat-
ically switched on when the vehicle is unlocked or the key removed from the
ignition lock And turn off approx. 20 seconds after closing the doors. The inte-
rior lights are switched off when the vehicle is locked or when the ignition is
switched on.
Interior light switched on
Push the switch to the position
.
Interior light switched off O
Push the switch to position O ⇒fig. 78.
Fig. 78 Interior roof trim:
front interior lights
AA
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Driving
176
NoteIf the fault is not corrected before you switch off the ignition, it will only be
indicated by the flashing LED on the switch
the next time you switch on
the parking aid.
Cruise control* (GRA)Description
The cruise control system is able to maintain the set speed in
the range from approx. 30 km/h to 180 km/h.Once the speed setting has been saved, you may take your foot off the accel-
erator.
WARNING
It could be dangerous to use the cruise control system if it is not possible
to drive at constant speed.•For safety reasons the cruise control system should not be used in
dense traffic, in sections with bends or where roads are in bad conditions
(e.g. aquaplaning, loose chippings, slippery surfaces, snow). Risk of acci-
dent.•Always switch the CCS off when finish to use it in order to avoid an
involuntary use.•It is dangerous to use a set speed which is too high for the current road,
traffic or weather conditions. Risk of accident.
Note
The cruise control cannot maintain a constant speed when descending down-
hill. The vehicle will accelerate due to its own weight. Use the foot brake to
slow the vehicle.Switching the cruise control system on and offSwitching on the system
–Push the switch ⇒fig. 132 to the left to ON.
Switching off system
– Either push the switch to the right to OFF or turn the ignition
off when the vehicle is stationary.W h en the cr uis e cont rol is o n an d a sp ee d is pr ogra m m e d, the in di cato r on
the instrument panel is lit.
21)
Fig. 132 Indicator and
main beam headlight
lever: switch and rocker
switch for the cruise
control
AB
AB
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