Instruments and controls87Vehicle messages
Messages are displayed in the Driver
Information Centre and may be
accompanied by illumination of
control indicator F or C in the
instrument cluster.
Information messages Information messages regarding,
e.g. engine starting conditions, stop-
start system, parking brake
application, central locking, steering
wheel lock etc. provide the current
status of certain vehicle functions and
instructions for use.
Fault messages Fault messages regarding, e.g. fuel
filter, airbags, exhaust emissions etc.
are displayed together with control
indicator F. Drive with caution and
seek the assistance of a workshop as
soon as possible.
To remove fault messages from the
display, press button on end of wiper
lever. After a few seconds the
message may disappearautomatically and F remains
illuminated. The fault will then be
stored in the on board system.
Warning messagesWarning messages regarding, e.g.
engine, battery or brake system
failure, are displayed together with
control indicator C and may be
accompanied by a warning chime.
Stop engine immediately and seek
the assistance of a workshop.
Fuel economy messages
Fuel economy messages provide tips to improve fuel efficiency. Journeys
can be saved in the system memory,
enabling you to compare
performances.
Refer to Infotainment system manual
for further information.
Fuel economy rating 3 88.
Warning chimes
A corresponding message may also
appear in the Driver Information
Centre when a warning chime is
sounded.When starting the engine or
whilst driving: ■ If seat belt is not fastened 3 47.
■ During operation of the turn and lane-change signals 3 93.
■ During illumination of certain control indicators.
■ If the parking assist detects an object 3 124.
■ If the vehicle speed briefly exceeds
a set limit 3 123.
■ If a door or the bonnet is not properly closed when vehicle
exceeds a certain speed.
■ If the electronic key is outside of the
detection range.
Electronic key system 3 21, Power
button 3 110.
When the vehicle is parked and/ or the driver's door is opened: ■ If the key has been left in the ignition.
■ If the electronic key has been left in
the card reader.
138Vehicle care
■See the Owner's Manual for further
information.
■ Explosive gas may be present in the vicinity of the battery.
Charging the vehicle battery9 Danger
Ensure adequate ventilation when
charging the battery. There is a
risk of explosion if gases
generated during charging are
allowed to accumulate!
Jump starting 3 159.
Replacing the vehicle battery
Have the vehicle battery replaced by
a workshop.
Diesel fuel filter
Drain diesel fuel filter of residual
water at every engine oil change.
Place a container underneath the
filter housing. Loosen the knurled
screw on the lower part of the filter by approx. one turn, to drain off the
water.
The filter is drained as soon as water-
free diesel fuel emerges. Retighten
the screw.
Check diesel fuel filter at shorter
intervals if the vehicle is subjected to
extreme operating conditions.
Diesel fuel system
bleeding
If the fuel tank has been run dry, it will
be necessary to air vent or bleed the
diesel fuel system.
Refuel then proceed as follows: ■ Switch on the ignition (key to position M) for 5 seconds at a time.
■ Switch off ignition (key to position A) for 3 seconds.
■ Repeat this process multiple times.
■ Start the engine (key to position D)
then switch off (key to position St).
If the engine fails to start, seek the
assistance of a workshop.
Starting the engine 3 111.
Vehicle care147
No.Circuit1Vehicle battery (with electronic
key system)2APC battery backup (with elec‐
tronic key system)3Passenger compartment heater4Adaptations5Adaptations6Passenger compartment heater7Additional air conditioning8Additional heating9Electric exterior mirrors, addi‐
tional adaptations10Heated exterior mirrors11Radio, multimedia, electric exte‐
rior mirrors, diagnostic socket12Multimedia, trailer hitch13Fuel injection system, courtesy
lightsNo.Circuit14Fuel injection system, tyre pres‐ sure monitoring system, elec‐
tronic key system15Hazard warning flashers, turn and lane-change signals16Central locking17Left-hand high beam, right-hand
low beam, tail lights, left-hand
daytime running light18Front fog lights, rear fog lights,
number plate lighting19Alarm, horn, automatic light
control, wiper20Instrument cluster21Light switch22Rear window wiper, windscreen
washer pump, horn23APC general battery24Reversing lights25Engine start-stop buttonNo.Circuit26Fuel injection, starter27Airbag, steering column lock28Passenger power window29Power steering30Brake lights31APC battery backup (with elec‐
tronic key system)32Service display33Cigarette lighter, power outlet34Right-hand high beam, left-
hand low beam, headlights,
right-hand daytime running light35Brake lights, ABS, immobiliser36Interior lighting, air conditioning37Starting with electronic key
system38Rear window wiper39Warning chimes
