Page 24 of 217
22In briefActive head restraints on
front seats
In the event of a rear-end impact, the active head restraints tilt forwards
slightly. The head is more effectively
supported by the head restraint and
the risk of whiplash injury is reduced.
Active head restraints can be
recognised by the word ACTIVE.
Head restraints 3 44.
Trip computer
Functions:
■ Range
■ Instantaneous consumption
■ Distance
■ Average speed
■ Absolute consumption
■ Average consumption
■ Stop watch
■ Tyre pressure
Trip computer 3 102, 3 104.
Check control
The check control monitors:
■ Fluid levels
■ Tyre pressure
■ Radio remote control battery
■ Anti-theft alarm system
■ Important exterior lighting bulbs, including cables and fuses.
Display messages 3 100.
Page 89 of 217

Instruments and controls87Turn signalO illuminates or flashes green.
Illuminates The control indicator illuminates
briefly when the parking lights are
switched on. Parking lights 3 112.
Flashes The control indicator flashes if a turn
signal or the hazard warning flashers
are activated.
Rapid flashing: failure of a direction
indicator lamp or associated fuse,
failure of direction indicator lamp on
trailer.
Bulb replacement 3 158. Fuses
3 165.
Turn signals 3 111.
Seat belt reminder X illuminates or flashes red.
Illuminates After the ignition is switched on until
the seat belt is fastened.Flashes
After starting off until the seat belt is
fastened.
Fastening the seat belt 3 55.
Airbag and belt tensioners v illuminates red.
When the ignition is switched on, the control indicator illuminates for
approx. 4 seconds. If it does not
illuminate, does not go out after
4 seconds or illuminates whilst
driving, there is a fault in the belt
tensioner or the airbag system. The
systems may fail to trigger in the event of an accident.
Deployment of the belt tensioners or
airbags is indicated by continuous
illumination of v.9 Warning
Have the cause of the fault
remedied immediately by a
workshop.
Airbag system, belt tensioners 3 58,
3 54.
Charging system p illuminates red.
Illuminates when the ignition is
switched on and goes out shortly after
the engine starts.
Illuminates when the engine isrunning
Stop, switch off engine. Battery is not charging. Engine cooling may be
interrupted. In diesel engines, power
to the brake servo unit may be cut.
Seek the assistance of a workshop.
Malfunction indicator light Z illuminates or flashes yellow.
Illuminates when the ignition is
switched on and goes out shortly after
the engine starts.
Page 103 of 217

Instruments and controls101Engine cooling level
Low fluid level in engine cooling
system. Check coolant level 3 154.
Drain diesel fuel filter If there is water in the diesel fuel filter,
the message InSP4 appears in the
instrument panel. Consult a
workshop.
Lighting
Important exterior lights, including
cables and fuses, are monitored. In
trailer mode, trailer lighting is also
monitored. Trailers with LED lighting
must have an adapter that enables
light monitoring as with conventional
bulbs.
The failed lighting will be indicated in
the information display or the
message InSP2 will appear in the
instrument panel display.
Anti-theft alarm system
System fault in anti-theft alarm
system. Have the cause of the fault
remedied by a workshop.
Tyre pressure
On vehicles with tyre pressure
monitoring system, if there is low tyre pressure, information which tyre to
check appears on the display.
Reduce speed and check tyre
pressure at the next opportunity. Tyre
pressure monitoring system 3 174.
Check tyre pressure 3 173, 3 205.
Page 153 of 217

Vehicle care151Vehicle careGeneral Information...................151
Vehicle checks ........................... 152
Bulb replacement .......................158
Electrical system ........................165
Vehicle tools .............................. 171
Wheels and tyres .......................172
Jump starting ............................. 184
Towing ....................................... 185
Appearance care .......................187General Information
Accessories and vehicle
modifications
We recommend using genuine parts and accessories and factory
approved parts specific for your
vehicle type. We cannot assess or guarantee reliability of other products
- even if they have a regulatory or
otherwise granted approval.
Do not make any modifications to the electrical system, e.g. changes of
electronic control units (chip tuning).Caution
When transporting the vehicle on
a train or on a recovery vehicle, the
mud flaps might be damaged.
Vehicle storage
Storage for a long period of time
Following must be done if the vehicle
should be stored for several months:
■ Wash and wax the vehicle.
■ Have the wax in the engine compartment and underbody
checked.
■ Clean and preserve rubber seals.
■ Fill up fuel tank completely.
■ Change engine oil.
■ Drain washer fluid reservoir.
■ Check coolant antifreeze.
■ Adjust tyre pressure to the value specified for full load.
■ Park vehicle in dry, well ventilated place. Engage first or reverse gear
or set selector lever to P. Prevent
the vehicle from rolling.
■ Do not apply parking brake.
Page 160 of 217
158Vehicle care
Wiper blade on the rear window
Lift wiper arm. Disengage wiper bladeas shown in illustration and remove.
Bulb replacement
Switch off the ignition and switch off
the relevant switch or close the doors.
Only hold a new bulb at the base! Do not touch the bulb glass with bare
hands.
Use only the same bulb type for
replacement.
The bulbs of the front outer lights are
replaced through openings in the front wheel housing: turn wheels in a
way that allows access, release catch
and remove cover.
To replace bulbs on the right side of
the engine compartment, detach the
air hose from the air filter. On the left
side, detach the plug to the fuse box.
Halogen headlights
Headlights have separate systems forhigh beam 1 (inner bulbs) and low
beam 2 (outer bulbs).
Low beam 1. Replace bulbs through the opening in the wheel housing.
Page 161 of 217
Vehicle care159
2. Remove protective cover 2.
3. Rotate bulb holder anti-clockwise
to disengage. Withdraw the bulb
holder from the reflector.
4. Detach bulb from bulb holder and renew the bulb.
5. Insert the bulb holder, engaging the two lugs into the reflector androtate clockwise to secure.
6. Rotate bulb carrier to right as far as it will go.
7. Install protective cover.
8. Close the opening in the wheel housing with the cover.
High beam 1. Access to the bulbs is through the
engine compartment.2. Remove protective cover 1.
3. Detach wiring plug from bulb.
Page 162 of 217
160Vehicle care
4. Disengage spring clip fromretainer by pressing forward and
then swing downwards.
5. Withdraw bulb from reflector housing.
6. When installing the new bulb, insert lugs in the reflector
recesses and engage the spring
clip.
7. Install the wiring plug onto bulb. 8. Install protective cover.
Side lights 1. Access to the bulbs is through the
engine compartment.2. Remove protective cover 1.
3. Withdraw parking light bulb holder
from reflector.
4. Remove bulb from socket and renew bulb.
5. Insert holder in reflector. Install the headlamp protective cover.
Front turn signal 1. Replace bulbs through the opening in the wheel housing.
2. Remove protective cover.
Page 163 of 217
Vehicle care161
3. Rotate bulb holder anti-clockwiseto disengage.
4. Push bulb into socket slightly, rotate anti-clockwise, remove and
renew bulb.
5. Insert bulb holder in reflector, rotate clockwise to engage.
6. Install protective cover.
7. Close the opening in the wheel housing with the cover.
Xenon headlights9 Danger
Xenon headlights work under
extremely high electrical voltage.
Do not touch. Except for the turn
signal bulbs, bulbs should be
replaced by a workshop.
Front turn signal
1. Access to the bulbs is through the
engine compartment.
2. Rotate bulb holder anti-clockwise to disengage.
3. Push bulb into socket slightly,rotate anti-clockwise, remove and
renew bulb.
4. Insert bulb holder in reflector, rotate clockwise to engage.
Fog lights
Have bulbs replaced by a workshop.