84Cockpit
To do this, drive about 15 minutes in fourth or fifth gear (automatic gear-
box: S gear range) at a speed of 60 km/h (40 mph), 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 lamp turns off.
If the lamp does not turn off, or the three lamps turn on (particulate filter
, emission control system fault and glow plugs ), take the vehicle to
a specialised workshop to repair the fault.
WARNING
● Always drive according to the road weather conditions, the terrain
and traffic. Driving recommendations should never lead to illegal ma-
noeuvres in surrounding traffic.
● The diesel engine particulate filter may reach extremely high temper-
atures; it should not enter into contact with flammable materials under-
neath the vehicle. Otherwise there is a risk of fire.
Anti-lock brake system (ABS)*
A control lamp monitors the ABS.
The control 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 control lamp does not light up when the ignition is switched on.
● The control lamp does not go out again after a few seconds
● The control 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 194. If a fault occurs in the ABS, the ESC* control 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 233, Working in the engine compartment.
● If the brake system 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 245, Brake fluid. If the brake fluid lev-
el has dropped below the “MIN” mark you must not drive on. Risk of acci-
dent. 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 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 242.
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Cockpit
The following message is shown on the instrument panel display* 1)
: REFILL
WINDSCREEN WASHER FLUID .
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. 52 Centre console:
tyre monitor system but-
ton
The tyre control lamp 2)
compares wheel revolutions and with it, the wheel
diameter of each wheel using the ESC. If the diameter of a wheel changes,
the tyre control lamp lights up. The wheel diameter 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 version of the model.
2) Depending on the model version
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
86Cockpit
● 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. 52 must be kept pressed while the ignition is on
until an audible warning 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 control 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 control lamp flashes
If the tyre pressure control lamp flashes, this indicates a fault. Go to the
nearest specialised workshop.
WARNING
● When the tyre pressure control lamp lights up, reduce speed immedi-
ately 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 control 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.
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 245.
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.
This warning lamp can light up together with the ABS system warning lamp.
1)
Depending on the version of the model.
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Cockpit
WARNING
● Before opening the bonnet, read and observe the warnings on
⇒ page 233.
● If the brake warning lamp does not go out, or if it lights up when driv-
ing, the brake fluid level ⇒ page 245, Brake fluid in the reservoir is too
low. Risk of accident. Stop the vehicle and do not drive on. Obtain techni-
cal assistance.
● 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 tech-
nical assistance.
Handbrake
This lamp lights up when the handbrake is applied. If you drive faster than 6 km/h (4 mph) with the handbrake on, the following
message will appear on the instrument panel display 1)
: HANDBRAKE ON. You
will also hear an acoustic warning signal ⇒ page 185.
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.
Engine oil pressure
If this warning lamp is red it 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 necessary, add
more oil ⇒ page 236.
The instrument panel displays the following message 1)
: STOP ENGINE OIL
PRESSURE INSTRUCTION MANUAL .
If the symbol flashes although the oil level is correct, do not drive on. Do
not even run the engine at idle speed! Obtain technical assistance.
Checking the oil level
If the warning lamp is yellow the engine oil level should be checked as
soon as possible. Top up the oil ⇒ page 238 at the next opportunity.
Oil level sensor faulty*
If the yellow warning lamp flashes, take the vehicle to a specialised
workshop to have the oil level sensor checked. Until then it is advisable to
check the oil level every time you refuel.
1)
Depending on the version of the model.
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89
Cockpit
Electronic Stability Control (ESC)* /
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. This also includes the
brake assistance system (BAS), automatic cleaning of the brake discs and
the trailer stability programme (TSP).
The warning lamp has the following functions:
● It flashes whilst driving when the ASR/ESC is activated.
● It will light up continuously if there is a fault in the ESC.
● As the ESC operates in conjunction with the ABS, it will also light up if a
fault should occur in the ABS.
If the ESC control lamp lights up and stays on after the engine is started,
this may mean that the control system has temporarily switched off the ESC.
In this case the ESC can be reactivated by switching the ignition off and
then on again. If the control 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 is disconnected when pressing the switch.Differential lock fault (EDL)*The EDL operates along with the ABS in vehicles equipped
with the Electronic Stability Control (ESC)*
A malfunction in the EDL is indicated by the ABS control lamp . Take the
vehicle to a specialised workshop as soon as possible. For further informa-
tion on the EDL see ⇒ page 197, Electronic differential lock (EDL)*.
Traction control system (ASR)* /
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 is working if the vehicle is moving.
If the system is deactivated or if it has any fault, the warning lamp will re-
main lit. The warning lamp will also light up if a fault should occur in the
ABS because the ASR operates in conjunction with the ABS. For further in-
formation, see ⇒ page 194, Brakes
The lamp provides information about the disconnection status of the
system:
● It stays lit when the ASR is disconnected when pressing the ASR OFF
switch.
By pressing it again, the ASR function is reactivated and the warning lamp
switched off.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
91
Steering wheel controls
Steering wheel controls
General information
The steering wheel includes a multifunction module from where it is possi-
ble to control the audio, telephone and radio navigation functions, and the
automatic gearbox*, without requiring the driver to be distracted from driv-
ing.
There are three versions of the multifunction module:
● Audio version, to control the available audio functions from the steering
wheel.
● Audio + Telephone version, to control the available audio functions and
the telephone system from the steering wheel.
Both versions may be used to control the Audio system (Radio, Audio CD,
mp3 CD, iPod 1)
/USB 1)
/SD 1)
) and the Radio navigation system, in which
case they also control the Navigation system.
● Version for automatic gearbox* ⇒ page 183.
1)
If fitted in the vehicle.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
92Steering wheel controls
Audio system
Steering wheel audio version controls
Fig. 53 Controls on the
steering wheelFig. 54 Steering wheel
controls (depending on
version of model)
ButtonRadioCD/MP3/USB*/iPod*AUX ⇒ table on page 93AVolume upVolume upVolume upBVolume downVolume downVolume down
CSearch for next stationNext track
Hold down: Fast forwardNo function specified
DSearch for last stationPrevious track
Hold down: RewindNo function specified
ENo function specifiedNo function specifiedNo function specifiedFMutePauseMute
Ga)Operates on instrument panel displayOperates on instrument panel displayOperates on instrument panel displayNext preset b)Next track b)No function specified b)
Ha)Operates on instrument panel displayOperates on instrument panel displayOperates on instrument panel displayPrevious presetb)Previous trackb)No function specified b)
93
Steering wheel controls
Ia)Next presetChange folderNo function specifiedChange menu on instrument panelChange menu on instrument panelChange menu on instrument panel
Ja)Previous presetChange folderNo function specifiedChange menu on instrument panelChange menu on instrument panelChange menu on instrument panelKOperates on instrument panelOperates on instrument panelOperates on instrument panel
La)Change sourceChange sourceChange sourceOperates on instrument panelOperates on instrument panelOperates on instrument panela)
Depending on the model version
b) Only if the panel is in Audio menu.
Steering wheel Audio + Telephone version controls
Fig. 55 Controls on the
steering wheelFig. 56 Steering wheel
controls (depending on
version of model)
ButtonRadioCD/MP3/USB*/iPod*AUXTELEPHONEAVolume upVolume upVolume upVolume upBVolume downVolume downVolume downVolume down
Safety FirstOperating InstructionsPractical TipsTechnical Specifications