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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.
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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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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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Note
When the display shows route guidance instructions from the navigation
system, the outside temperature appears in the second line of the radio dis-
play.
Gear display*
This display helps to save fuel.
Fig. 50 Gear display
Use the gear display to save fuel. The indication ⇒ fig. 50 on the instrument
panel display recommends that you select the gear indicated by the arrow.
It may also skip a gear, and recommend changing up from 4th gear to 6th
gear, for example.
Note
● The display may not recommend any gear-change while you are acceler-
ating.
● The gear change indication should not be taken into account the accel-
eration is required (for example when overtaking).
● If desired, you can have the gear-change display deactivated by an Au-
thorised Service Centre.
Distance to empty
The distance to empty display can help you to plan your trip.
The estimated distance to empty is displayed in km. It shows how far the
vehicle can be driven with the amount of fuel left in the tank, assuming the
same style of driving. The distance to empty is displayed in increments of
10 km.
The distance to empty is calculated on the basis of the fuel consumption
over the last 30 kilometres. The distance to empty will increase if you drive
in a more economical manner.
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Service reminder
The instrument panel controls the distance travelled every day. It calculates
the average of these distances travelled and activates the service reminder
sufficiently in advance.
The display reverts back to the standard display after about 5 seconds. The
remaining distance to the next service is updated every time the ignition is
switched on, until the service becomes due.
Service due
When a service is due, SERVICE! will appear in the display immediately after
you switch on the ignition. The display reverts back to the standard display
after about 5 seconds.
Resetting the display
The display is reset by the workshop after the service has been carried out.
The service interval will be set to a LongLife Service (flexible service inter-
val) or Inspection Service (fixed service interval), depending on which en-
gine oil is used. It is only possible to reset the display via the instrument
panel when an oil change is performed; in this case the display can only be
reset to a fixed service interval of 15 000 km. Proceed as follows:
● Switch the ignition off.
● Press the service button ⇒ fig. 52 1
and hold while switching on the
ignition. The display will show one of these messages: Service in ----- km or
Service!
● Now press and hold the reset button 2
until the display shows
Service
in ----- km --- days or Service!
The display switches out of the reset mode if you do not press the reset but-
ton within 5 seconds.
CAUTION
The system cannot calculate the figures for the service interval display if the
battery is disconnected from the vehicle, so no service reminder can be dis-
played during this time. Please remember that it is essential to service the
vehicle within the established time limits to prevent its deterioration and to
extend its useful life (particularly that of the engine). The period between
two services must never be longer than the time specified in the Mainte-
nance Programme, even if you only cover a low mileage during this time.
Note
● Do not reset the service indicator between services, otherwise the dis-
play will be incorrect.
● The information in the service indicator remains intact if the battery is
disconnected.
● The distance to the next service cannot be called up if the system has
detected a Priority 1 fault (red symbol).
Auto-check system Introduction
The auto-check system checks important components and vehicle systems.
These background checks are run constantly, as long as the ignition is
switched on.
A message is displayed on the instrument panel if a fault should occur or if
any maintenance or repairs are urgently required. This is accompanied by
an audible warning signal. Depending on the priority of the fault, a red or
yellow warning symbol lights up on the display.
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Red symbols
A red symbol warns of a danger.
Fig. 54 Display: Coolant
level warning
– Stop the vehicle.
– Switch the engine off.
– Check the fault. Obtain professional assistance if necessary.
BRAKESFault in brake system⇒ page 77
COOLANTCoolant level too low / coolant tempera-
ture too high⇒ page 78
OIL PRES- SUREEngine oil pressure too low⇒ page 78
The red symbols are used to indicate a Priority 1 fault (serious malfunction). A red symbol is accompanied by
three warning chimes. The symbols will
keep flashing until the faults are corrected. If several Priority 1 faults are de-
tected at the same time, the symbols are displayed one after the other for
about 2 seconds.
Fault in the brake system
A fault in the brake system should be repaired as soon as
possible.
If the symbol flashes in the display, there is a fault in the brake
system. One of the following messages will appear in the display
together with the symbol:
Stop vehicle, check brake fluid and hydraulic fluid levels
Warning! Fault in brake system (ABS) Take vehicle to workshop
– Stop the vehicle.
– Check the brake fluid level ⇒ page 230.
If the ABS fails, the ABS warning lamp will light up together with the
brake system fault symbol ⇒
.
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Engine oil level correct
If the symbol flashes and the engine oil level is correct, obtain profes-
sional assistance. Do not drive on! Do not continue to run the engine, even
at idle speed .
Note
The oil pressure warning lamp is not an indicator for the oil level. The oil
level should therefore be checked regularly, preferably every time you fill
the tank.
Yellow symbols
A yellow symbol indicates a warning.
Fig. 55 Display: Fuel lev-
el low
Brake light failure warning light⇒ page 80
Fuel level low⇒ page 80
Engine speed governing⇒ page 80
Check engine oil level⇒ page 80
Engine oil sensor faulty*⇒ page 80
Diesel particulate filter* obstructed⇒ page 80
Photosensor/rain sensor faulty⇒ page 81
Brake pad worn⇒ page 81
Speed warning 1⇒ page 81
Dynamic headlight range control* faul-
ty⇒ page 81
Adaptive headlights* faulty⇒ page 81
Washer fluid level low*⇒ page 81
Speed warning 2*⇒ page 81
Battery voltage too high or too low*⇒ page 81
Bulb monitor*⇒ page 82
Tyre pressure monitoring system*
Loss of pressure⇒ page 89
Tyre pressure monitoring system*
System not available⇒ page 66
Yellow symbols are used to indicate a Priority 2 fault (warning).
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Photosensor/rain sensor faulty
Automatic headlights / automatic wipers faulty
If the symbol lights up, this means that the photosensor/rain sensor is
not working. For safety reasons, the dipped beam headlights will then be
switched on permanently when the light switch is set to the AUTO position.
However, you can still switch the lights on and off in the normal way with
the light switch. If the rain sensor is faulty, the functions operated via the
windscreen wiper lever will still be available. You should have the photosen-
sor/rain sensor checked by a specialised workshop as soon as possible.
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.
Speed warning 1
If the symbol lights up, this means you are exceeding the speed that has
been pre-set with the speed warning function. You should reduce your
speed accordingly ⇒ page 82.
Headlight range control faulty
This symbol indicates a malfunction in the dynamic headlight range con-
trol. Take the vehicle to a qualified workshop to have the dynamic headlight
range control function repaired. Adaptive headlights* faulty
Adaptive headlights faulty
This symbol indicates that the adaptive headlight system is faulty. Take
the vehicle to a qualified workshop to have the headlights or the adaptive
headlight control unit repaired.
Washer fluid level low
If the symbol lights up, top up the fluid for the windscreen washer and
headlight washer system* ⇒ page 228.
Speed warning 2
If the symbol lights up, this means you are exceeding the speed that has
been pre-set. You should reduce your speed accordingly ⇒ page 82.
Battery voltage too high or too low
If the symbol lights up, take the vehicle to a qualified workshop and
have the following items checked:
● Poly V-belt
● Battery condition
It is also advisable to check whether the alternator warning lamp has come
on ⇒ page 69.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications