Airbag system
30Monitoring of airbag and belt tension device system
Both the airbag and belt tension device systems operation is constantly
monitored electronically. The warning lamp
will light every time the igni-
tion is switched on until you attach your seatbelt.
The system must be checked when the warning lamp
:
•does not light up when the ignition is switched on,•it turns off and then lights up again after the ignition is switched on,•lights up or flashes while the car is moving.
In the event of a malfunction, the warning lamp remains on continuously.
Have the system inspected immediately by a qualified workshop.
If any of the airbags are de-activated by the Authorised Service Centre, the
indicator lights for several seconds more after the verification and will turn off
if there is no fault.WARNING
•If there is a malfunction, the airbag and belt tension device system
cannot properly perform its protective function.•If a malfunction occurred, have the system checked immediately by a
qualified workshop. Otherwise, in th e event of an accident, the airbag
system and belt tension devices may not be triggered, or may not be trig-
gered correctly.
Repairs, maintenance and disposal of the airbagsThe parts of the airbag system are installed in various places in your vehicle.
If you work on the airbag system or remove and fit parts of the system when
performing other repair work, parts of the airbag system may be damaged.
The consequence may be that, in the event of an accident, the airbag inflates
incorrectly or does not inflate at all. The relevant safety requirements must be observed when the vehicle or
components of the airbag are
scrapped. The specialist workshops and the
Vehicle disposal centres are familiar with these requirements.
WARNING
•If repairs are not carried out by a professional, or if the airbags are used
incorrectl y, the ris k of severe or fatal inju ries is increase d. T he airbags may
fail to inflate, or could inflate in the wrong circumstances.•Do not cover or stick anything on the steering wheel hub or the soft
plastic surface of the airbag unit on the passenger side of the dashboard,
and do not obstruct or modify them in any way.•It is important not to attach any objects such as cup holders or tele-
phone mountings to the surfaces covering the airbag units.•To clean the steering wheel or dash panel, you may use only a dry or a
water-moistened cloth. Never clean the dash panel and the airbag module
surface with cleansers containing solvents. Solvents cause the surface to
become porous. If the airbag triggered, disintegrating plastic parts could
cause substantial injuries.•Never attempt to repair, adjust, remove or install parts of the airbag
system.•Any work on the airbag system or removal and installation of the airbag
components for other repairs (such as repairs to the steering wheel) should
be performed only by a qualified wo rkshop. Qualified workshops have the
necessary tools, repair inform ation and qualified personnel.•We strongly recommend you to go to a qualified workshop for all work
on the airbag system.•Never attempt to alter the front bumper or the body.•The airbags provide protection for just one accident; replace them once
they have deployed.
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Airbag system35
Safety First
Controls and equipment
Practical tips
Technical Data
that the airbag system can only help to protect you if you are wearing your
safety belt and wearing it properly.
Remember too that airbags will deploy only once and only in certain kinds of
accidents - your safety belts are always there to offer protection in those acci-
d e nts i n whi ch a ir ba gs a re not supp os ed t o de ploy or wh en the y hav e alr ead y
deployed, for example when your vehicle strikes or is struck by another after
the first collision.
This is just one of the reasons why an airbag is not a substitute for the safety
belt. The airbag system works most effectively when used with the safety
belts. Therefore, always wear your safety belts correctly.
It is important to remember that while the supplemental airbag system is
designed to reduce the likelihood of serious injuries, other injuries, for
example, swelling, bruising, and minor abrasions can also be associated with
airbags.
The knee airbag system basically consists of:
•The electronic control module•One inflatable airbag (airbag and gas generator) for the driver•An airbag indicator light in the instrument panel
The knee airbag system will not deploy:•when the ignition is turned off•in frontal collisions when the deceleration measured by the control unit is
too low•in side collisions•in rear-end collisions•in rollovers•in the event of a system malfunction (warning/indicator light illuminated)
⇒ page 65.
WARNING
•Safety belts and the airbag system can only provide protection when
occupants are in the proper seating position.•If the airbag indicator light comes on when the vehicle is being used,
have the system inspected immediately by your Authorised Service Centre.
The airbag may not work properly when the vehicle acceleration in a side
collision is high enough to deploy the airbag. See also ⇒page 65.
How knee airbags work
The risk of injury to the leg area is reduced by fully deployed
knee airbags.The knee airbag system has been designed so that the airbag for the driver is
deployed in certain but not all frontal collisions.
Fig. 22 Inflated airbags
protect in a frontal colli-
sion.
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Cockpit59
Safety First
Controls and equipment
Practical tips
Technical Data
InstrumentsInstrument panel overview
The instrument panel is the driver's information centre.Fig. 37 Overview of instrument panel
Coolant temperature gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rev counter incorporating digital clock and date . . . . . . . . . . .
Warning and indicator lamps . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speedometer (incorporating mileage recorder display) . . . . . .
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjuster buttons for
−
Digital clock and date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
− Instrument lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital display with
− Service indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A1
60
A2
61, 61
A3
65
A4
63
A5
63
A6
61
62
A7
74
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Cockpit
60
− Driver information system . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECK button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Call-up button for service indicator . . . . . . . . . . . . . . . . . . . . . .
Reset button for trip recorder . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant temperature gaugeThe coolant temperature gauge ⇒ fig. 38 only works when the ignition is
switched on. In order to avoid engine damage, please read the following
notes for the different temperature ranges.
Cold temperature
If the needle is still on the left of the dial, this indicates that the engine has
not yet reached operating temperature. Avoid high revs and heavy accelera-
tion and do not make the engine work hard. Normal temperature
In normal operations, the needle will settle somewhere in the centre of the
dial once the engine has reached running temperature. The temperature may
also rise when the engine is working hard, especially at high outside temper-
atures. This is no cause for concern, provided the warning lamp
does not
light up in the instrument panel.
Warning temperature
If the symbol
flashes in the display, this means that either the coolant
temperature is too high or the coolant level is too low ⇒page 78.
WARNING
•Before opening the bonnet and checking the coolant level, observe the
warning information ⇒page 221.•Never open the bonnet when steam or coolant is being released from it.
This could lead to burns. Wait until you can no longer see or hear escaping
steam or coolant.Caution
Accessories in front of the air inlet reduce the cooling effect of the coolant. At
high outside temperatures and high e ngine loads, there is a risk of the
engine overheating.
71
A8
64
A9
74
A10
63
Fig. 38 Engine coolant
temperature gauge
AA
ABAC
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Safety First
Controls and equipment
Practical tips
Technical Data
•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 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 battery
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 185.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 specialist garage. However, given that the
battery will be running down, any electrical consumption not absolutely vital
should be switched off.
Caution
If the coolant warning lamp
i n t h e i n s t r u m e n t p a n e l l i g h t s u p as we ll a s t h e
alternator waning lamp while driving ⇒page 78, stop the vehicle immedi-
ately and switch off the engine. In this case the coolant pump is no longer
being driven, 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 system
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 immediately to
a specialist garage to have the engine serviced.
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Cockpit
70Glow plug system
The indicator lamp lights up while the glow plugs are
preheating.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 indicator
lamp will only light up very briefly.
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 engine
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 applied
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, observe
the warning information in ⇒page 221, “Work in the engine compart-
ment”.•If the brake warning lamp does not go out, or if it lights up when
driving, 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 the control function of the ABS is out of action. As
a result, the rear wheels can lock relatively easily when braking. Under
certain circumstances, the rear of the vehicle could suddenly sway from
side to side, with the subsequent dang er of skidding. Drive carefully to the
nearest specialist garage and have the fault rectified.
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Technical Data
Driver information systemGeneral notes
The driver information system in the instrument panel shows
the status of various on-board systems at a glance.The display for the driver information system is in the centre of the instrument
panel.
The system runs a check on certain components and functions when the igni-
tion 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 dashboard display.
The driver is informed on the audio system.
The driver information system includes the following functions:
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.
Fig. 47 Cockpit: Digital
display in the instrument
panel
Display for the CD reader, radio and telephone*
⇒page 72
Ambient temperature display
⇒page 72
Gear indicator*
⇒page 73
Selector lever positions for the 7-speed automatic gear-
box*
⇒page 181
Selector lever positions with Multitronic
®*
⇒page 177
Distance to empty (the distance you can travel with the
remaining fuel)
⇒page 73
Door catch/tailgate warning
⇒page 74
Service interval display
⇒page 74
auto-check control
⇒page 75
Driving tips
⇒page 76
Handbrake warning
⇒page 76
Bulb monitor*
⇒page 81
On-board computer*
⇒page 85
Tyre pressure monitoring*
⇒page 89
Navigation information*
Separate operat-
ing instructions
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Cockpit
74Door catch/ tailgate warningThe door catch/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 front left door is open.
The corresponding part of the pictogram will flash if either the bonnet or tail-
gate are open. The warning symbol goes out when the bonnet, tailgate and
all the doors are closed.
On vehicles with a driver information system and an on-board computer* the
door catches/tailgate warning symbol can be switched off by briefly pressing
one of the control switches for the on-board computer ⇒page 86. However,
the warning symbol will appear again if any of the doors or the bonnet or tail-
gate is opened or closed.
Service indicator
This display reminds the driver when the next routine service
is due.Displaying distance to next service
When you press the service button briefly with the ignition switched on,
the display will show how far the vehicle can be driven before the next service
is due. This check can be carried out with the engine stopped or running up
to speeds of 5 km/h. Before the first 500 km and after the ignition cycle, the
kilometres and days before the service inspection are not displayed.
If the service button is pressed before the first 500 kms the following indi-
cation appears on screen:
Service in ----- km --- days
This is also valid for vehicles with “Extended Service Intervals”*.
Fig. 51 Display: door
catch/tailgate warning
F ig. 52 Detail of th e dash
panel insert: Service indi-
cator display
A1
A1
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