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Exhaust emission control system
If the warning lamp lights up continuously you should take your vehicle to a
specialised workshop as soon as possible in order to have the fault re-
paired.
If the warning lamp flashes drive on at reduced speed and seek professio-
nal help in order to avoid damage to the catalytic converter.
For further information on the catalytic converter, see ⇒ page 192.
Airbag system
This warning lamp monitors the airbag and belt tension de-
vice system.
The warning lamp should light up for a few seconds when the ignition is
switched on.
If the warning lamp does not go out, or if it lights up, flashes or flickers
when the vehicle is moving, this indicates a malfunction in the system.
WARNING
If a malfunction should occur, have the system checked immediately by a
qualified workshop. Otherwise there is a risk that the airbag system and/
or belt tensioners may not be triggered in an accident.
Tyre pressure warning lamp*
The tyre pressure should be corrected as soon as possible if
it is too low.
Fig. 45 Display: system
fault
Fig. 46 Display: warning
message
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Cockpit
The yellow warning lamp remains on if the system is faulty or if
the pressure is too low in at least one tyre. In the event of a system
fault, the letters TPMS are displayed in the centre of the instrument
panel ⇒ fig. 45. If the tyre pressure drops rapidly, message A
⇒ fig. 46 will be shown on the central display of the instrument
panel. If the pressure loss is more gradual, message B ⇒ fig. 46
will be shown on the central display of the instrument panel. This
message does not show the tyre affected. Should any of these
warnings be displayed:
– Stop the vehicle.
– Check the tyres. Although the warning corresponds to just one
tyre, you should also check the others.
– Correct the tyre pressure ⇒ page 236.
For more detailed information on the tyre pressure monitoring system,
please refer to ⇒ page 235.
Cruise speed (Cruise control)*
The indicator lamp on the instrument panel lights up when the cruise
control system is operating.
Trailer turn signals*
This turn signal lamp flashes when the turn signals are op-
erating while towing a caravan or trailer. The turn signal lamp flashes when the turn signals are operated if a trail-
er is correctly coupled to the vehicle. Where a turn signal bulb does not work, either on the trailer or on the tow-
ing vehicle, the turn signal bulb will not flash.
Anti-lock brake system (ABS)
The warning lamp monitors the ABS and the integrated elec-
tronic differential lock (EDL).
The warning lamp lights up for a few seconds when the ignition is switch-
ed on and while the engine is being started. The lamp 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 brake in the normal way (except that the ABS control
function is out of action). Please take the vehicle to a qualified workshop as
soon as possible. For further information on the ABS, see ⇒ page 185.
If a malfunction should occur in the ABS, the ESP warning lamp will also
light up.
Entire brake system fault
If the ABS warning lamp lights up together with the brake warning lamp
⇒ page 70 (with the handbrake released), this indicates not only a
fault in the ABS function, but probably also a malfunction in the main brake
system ⇒
.
The symbol will light up on the instrument panel if there if a fault in the
brake system. Please refer to ⇒ page 77.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
68Cockpit
Electronic differential lock (EDL) fault
The EDL works in conjunction with the ABS. The ABS indicator lamp will light
up to indicate an EDL fault. Please take the vehicle to a qualified work-
shop as soon as possible. For further information on the EDL, see
⇒ page 186.
WARNING
● Before opening the bonnet and checking the brake fluid level, ob-
serve the warning information in ⇒ page 221, Work in the engine com-
partment.
● 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. If the fluid level has dropped below the "MIN" mark
you must not drive on, as there is a risk of accident. Obtain technical as-
sistance.
● If the brake fluid level is correct, the fault in the brake system may
have been caused by a fault in the ABS control function. As a result, the
rear wheels can lock relatively easily when braking. Under certain cir-
cumstances, the rear of the vehicle could suddenly sway from side to
side, with the subsequent danger of skidding. Drive carefully to the near-
est specialised workshop and have the fault repaired.
Seat belt warning lamp*
The warning lamp acts as a reminder to the driver to fasten
the seat belt. After switching on the ignition, the warning lamp will remain lit until the
driver and front passenger (if applicable) have fastened their seat belts.
When the vehicle has reached a certain speed, you will also hear a warning
signal and the warning light will flash.
For further information on the seat belts, see ⇒ page 23.Turn signals and hazard warning lights
Depending on which turn signal is operated, either the left or right turn
signal lamp flashes. Both turn signal lamps will flash when the hazard warn-
ing lights are switched on.
If a turn signal fails, the indicator lamp will start flashing twice as fast as
normal.
This does not apply when towing a trailer. Where a turn signal bulb does not
work, either on the trailer or on the towing vehicle, the turn signal bulb will
not flash. For further information on the turn signals, see ⇒ page 122.
Electronic Stability Programme
This warning lamp monitors the Electronic Stability Pro-
gramme (ESP).
The warning lamp has the following functions:
● It will start flashing to indicate that ESP is counteracting an unstable
driving condition.
● It lights up when the ignition is switched on for approx. 2 seconds while
the function is checked.
● The warning lamp will light up if there is a malfunction in the ESP.
● It will light up after the battery has been disconnected.
● The warning lamp will light up if the ESP is switched off.
● It will also come on if a fault should occur in the ABS because the 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 ESP can be reactivated by switching the ignition off and
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Cockpit
then on again. After this the warning lamp should go out to show that the
system is fully functional.
The warning lamp will light up when the ignition is switched on if the bat-
tery has been disconnected and then reconnected. It should go out again
after driving a short distance if the steering wheel is turned slightly.
For further information on the ESP, see ⇒ page 186.
Alternator
The warning lamp signals a fault in the alternator or in the
vehicle's electrical system.
The warning lamp lights up when the ignition is switched on. It should switch off after the engine has started.
If the warning lamp lights up when you are driving, you can normally
continue as far as the nearest qualified workshop. However, given that the
battery will be running down, any electrical consumption not absolutely vi-
tal should be switched off.
CAUTION
If the coolant warning lamp in the instrument panel lights up as well as
the alternator waning lamp while driving ⇒ page 78, stop the vehicle im-
mediately and switch off the engine. In this case the coolant pump is no
longer working, and there is a risk of engine damage.
Main beam headlights
The indicator lamp
lights up when the main beams are on or when the
headlight flasher is operated. For further information on the main beam headlights, see ⇒
page 122.
Engine management
This warning lamp monitors the engine management sys-
tem for petrol engines.
The warning lamp (Electronic Power Control) lights up while the function
is being checked.
Note
If the warning lamp lights up while the vehicle is moving, this indicates a
fault in the engine management system. The vehicle must be taken immedi-
ately to a qualified workshop to have the engine serviced.
Glow plug system
The indicator lamp lights up while the glow plugs are pre-
heating.
The indicator lamp lights up while the glow plugs are preheating. When
the indicator lamp goes out the engine should be started straight away.
When the engine is warm, or at outside temperatures above +8 °C, the
warning lamp will only light up very briefly.
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70Cockpit
Note
● If the glow plug indicator lamp should start flashing while the vehicle is
moving, this indicates a fault in the engine management system. The en-
gine should be serviced without delay.
● If the indicator lamp fails to light up when the ignition is switched on,
this can mean that the glow plug system is defective. The engine should be
serviced.
Brake system
The warning lamp flashes when the handbrake is applied, or
if the brake fluid level is too low or if there is a fault in the
ABS system. If the warning lamp flashes (and the handbrake is not applied), stop the
vehicle and check the brake fluid level ⇒
⇒ page 230.
If a failure should occur in the ABS, the ABS warning lamp will light up
together with the brake warning lamp ⇒
.
Handbrake on
The warning lamp also lights up when the handbrake is applied. In addi-
tion to this, the handbrake warning ⇒ page 76 switches on after driving
for 3 seconds at a speed above 5 km/h.
WARNING
● Before opening the bonnet and checking the brake fluid level, ob-
serve the warning information in ⇒ page 221, Work in the engine com-
partment.
● If the brake warning lamp does not go out, or if it lights up when driv-
ing, the brake fluid level in the reservoir is too low and this may cause an
increased accident risk. Stop the vehicle and do not drive on. Obtain
technical assistance.
● If the brake warning lamp lights up together with the ABS warning
lamp, this can mean that there is a fault in the ABS control function. As a
result, the rear wheels can lock relatively easily when braking. Under cer-
tain circumstances, the rear of the vehicle could suddenly sway from side
to side, with the subsequent danger of skidding. Drive carefully to the
nearest specialised workshop and have the fault repaired.
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Cockpit
Driver information system
General notes
The driver information system in the instrument panel
shows the status of various on-board systems at a glance.
Fig. 47 Cockpit: Digital
instrument panel display
The display for the driver information system is in the centre of the instru-
ment panel.
The system runs a check on certain components and functions when the ig-
nition is switched on and while the vehicle is moving. The DIS system gives
an audible warning if a fault should occur or if servicing is required, and a
red or yellow warning symbol (in some cases with a corresponding driver
message) appears in the instrument panel display.
The driver is informed on the audio system.
The driver information system includes the following functions:
CD player, radio and telephone display*⇒ page 72Outside temperature display⇒ page 72Gear indicator*⇒ page 73Selector lever positions for the 7-speed automatic
gearbox*⇒ page 182
Selector lever positions with multitronic ®
*⇒ page 178Distance to empty⇒ page 73Door and tailgate warning⇒ page 74Service indicator⇒ page 74auto-check control⇒ page 75Driving tips⇒ page 76Handbrake warning⇒ page 76Bulb monitor*⇒ page 82Onboard computer*⇒ page 85Tyre pressure monitoring*⇒ page 89Navigation information*Separate Instruc-
tion Manual
Note
● If a fault should occur, the display will show a red or yellow warning
symbol. A red warning symbol indicates a serious malfunction ⇒ page 77.
A yellow warning symbol indicates a less serious malfunction ⇒ page 79.
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72Cockpit
CD, radio and telephone display*
Fig. 48 Display: addi-
tional radio information
If the radio is switched on and no Priority 2 faults are indicated by the auto-
check control, depending on the type of radio fitted, the display will show
the name or frequency of the selected radio station and complementary in-
formation, once the “OK” symbol has gone out.
When in CD mode*, the display will show the current track.
If you have a compatible telephone*, the phone book or telephone dialled
can also be seen on this display.
These displays appear in addition to the display on the radio itself. Outside temperature displayFig. 49 Display: Outside
temperature display
The outside temperature is shown in the display when the ignition is switch-
ed on ⇒ fig. 49. In vehicles with an automatic gearbox, the display does not appear until the driver has engaged a gear.
At temperatures below +5 °C a snowflake symbol appears next to the tem-
perature display. This is to warn the driver to take extra care when there is a
risk of ice on the road. When the vehicle is stationary or travelling at very
low speeds, the temperature displayed may be slightly higher than the ac-
tual ambient temperature as a result of heat coming from the engine.
If the vehicle has an air conditioner and the display is changed over to °F
(degrees Fahrenheit), the outside temperature display automatically
changes over to °F ⇒ page 161.
WARNING
Do not rely on the outside temperature display as an ice warning. Please
bear in mind that there may be ice on the roads even at outside tempera-
tures of +5 °C – beware of ice patches.
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Door and tailgate warning
Fig. 51 Display: Door
and tailgate warning
The door and tailgate warning symbol lights up if one or more of the doors,
or the bonnet or tailgate are not properly closed when the ignition is on. The
symbol also indicates which of these is not properly closed. The display in
the illustration ⇒ fig. 51 shows that the driver door is open.
The corresponding part of the pictogram will flash if either the bonnet or
tailgate are open. The warning symbol goes out when the bonnet, tailgate
and all the doors are closed.
In vehicles with a driver information system and an onboard computer* the
door catches/tailgate warning symbol can be switched off by briefly press-
ing one of the control switches for the onboard computer ⇒ page 86. How-
ever, the warning symbol will appear again if any of the doors or the bonnet
or tailgate is opened or closed. Service indicator
This display reminds the driver when the next routine serv-
ice is due.
Fig. 52 Detailed view of
the instrument panel:
Service indicator
Displaying distance to next service
When you press the service button 1
briefly with the ignition switched on,
the display will show how far the vehicle can be driven before the next serv-
ice is due. This check can be carried out with the engine stopped or running
up to 5 km/h. Before the first 500 km and after the ignition cycle, the kilo-
metres and days before the service inspection are not displayed.
If the service button 1
is pressed before the first 500 km the following indi-
cation appears on screen:
Service in ----- km --- days
This is only valid for vehicles with “LongLife Service Intervals”*.