2006 MERCEDES-BENZ R350 battery

393 Operation
Maintenance
Clearing the maintenance service indicator
The maintenance service indicator is auto-
matically cleared after 10 seconds when
you switch on the ignition or when reach-
ing the service threshold while driving. You
can also clear it yourself.
Press reset button on the instrument
cluster (
page 158).
Maintenance service term exceeded
If you have exceeded the suggested main-
tenance service term, you will see the fol-
lowing message in the multifunction
display:Service A exceeded by XXXXX miles (km)
Service A exceeded by XXX days
Service A exceeded by X day In addition, a signal sounds when the mes-
sage appears.
Any authorized Mercedes-Benz Light Truck
Center will reset the maintenance service
indicator following a completed mainte-
nance service.Calling up the maintenance service
indicator
Switch on the ignition (
page 38).
The standard display of the control sys-
tem appears (
page 168).

Press button k or j on the mul-
tifunction steering wheel until the
maintenance service indicator with the
service symbol 9 and the service
deadline appears in the multifunction
display.iIf the battery is disconnected, the days
of disconnection will not be included in
the count shown by the maintenance
service indicator. To arrive at the true
maintenance service deadline, you will
need to subtract these days from the
days shown in the maintenance service
indicator.
Do not confuse the maintenance ser-
vice indicator with the engine oil level
indicatorN.

403 Practical hints
What to do if …
Where will I find ...?
Unlocking / locking in an emergency
Opening / closing in an emergency
Replacing SmartKey batteries
Replacing bulbs
Replacing wiper blades
Flat tire
Battery
Jump starting
Towing the vehicle
Fuses

404 Practical hintsWhat to do if …Lamps in instrument clusterGeneral information:
If any of the following lamps in the instru-
ment cluster fails to come on during thebulb self-check when switching on the
ignition, have the respective bulb checked
and replaced if necessary.Problem
Possible cause/consequence
Suggested solution
-
The yellow ABS indicator lamp
comes on while the engine is
running.
ABS has detected a malfunction and has
switched off. The BAS, ESP
®, and 4-ETS are
also switched off (see messages in multifunc-
tion display).
The brake system is still functioning normally
but without the ABS available.
If the ABS control unit is malfunctioning,
other systems such as the navigation
system* or the automatic transmission may
also be malfunctioning.

Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.

Read and observe messages in the
multifunction display (
page 416).

Have the system checked at an
authorized Mercedes-Benz Light
Truck Center as soon as possible.
Failure to follow these instructions
increases the risk of an accident.
The charging voltage has fallen below
10 volts. The ABS has switched off.
The battery might not be charged sufficiently.

Switch off electrical consumers that
are currently not needed, e.g. seat
heating*.

If necessary, have the generator
(alternator) and battery checked.
When the voltage is above this value
again, the ABS is operational again.

419 Practical hints
What to do if …
Display message
Possible cause/consequence
Possible solution
ABS
unavailable
See Operator’s Manual
The ABS was deactivated because of
insufficient power supply. The charg-
ing voltage has fallen below 10 volts.
The brake system is still functioning
normally but without the ABS
available.

Switch off electrical consumers that are
currently not needed, e.g. seat heating*.

If necessary, have the generator
(alternator) and the battery checked.
When the voltage is above this value again, the
ABS is operational again and the message in
the multifunction display should disappear.
Cruise
control
Drive to workshop
Cruise control is malfunctioning.

Have cruise control checked by an
authorized Mercedes-Benz Light Truck
Center.
ESP
unavailable
See Operator’s Manual
In addition, the yellow ESP
® warning
lampv comes on.
The ESP
® is deactivated because of
a malfunction or interrupted power
supply.

Continue driving with added caution.

Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Failure to follow these instructions increases
the risk of an accident.

429 Practical hints
What to do if …
Symbol messagesDisplay symbol
Display messages
Possible cause/consequence
Possible solution
#
malfunction
Visit workshop
The battery is no longer charg-
ing.
Possible causes:

alternator malfunctioning


broken poly-V-belt
Do not forget that the brake sys-
tem requires electrical energy
and may be operating with re-
stricted capability. Considerably
greater brake pedal force is
required and the stopping dis-
tance is increased.

Stop in a safe location or as soon as it is
safe to do so and check the poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise the
engine will overheat due to an inoperative
water pump which may result in damage
to the engine. Notify an authorized
Mercedes-Benz Light Truck Center.
If it is intact:

Drive immediately to the nearest autho-
rized Mercedes-Benz Light Truck Center.
Adjust driving to be consistent with
reduced braking responsiveness.

430 Practical hintsWhat to do if …Display symbol
Display message
Possible cause/consequence
Possible solution
#
Undervoltage
Switch off consumers
The battery has insufficient
voltage.

Turn off unnecessary electrical
consumers.
Battery/Alternator
Stop vehicle
The battery is defective.

Stop the vehicle in a safe location or as
soon as it is safe to do so.

Do not continue to drive.

Notify an authorized Mercedes-Benz
Light Truck Center.
2
Brake wear
Visit workshop
The brake pads have reached
their wear limit.

Have the brake pads replaced as soon as
possible.
!Brake pad thickness must be visually
inspected by a qualified technician at
the intervals specified in the
Maintenance Booklet.

441 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
F
Key
still in vehicle
A SmartKey with KEYLESS-GO*
left in the vehicle was recog-
nized while trying to lock the ve-
hicle from the outside.

Take the SmartKey with KEYLESS-GO*
out of the vehicle.
Remove key
You have forgotten to remove
the SmartKey.

Remove the SmartKey from the starter
switch.
Replace key
Drive to workshop
There is no additional code avail-
able for SmartKey or SmartKey
with KEYLESS-GO*.

Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Key
Check battery
The batteries in the SmartKey
with KEYLESS-GO* are dis-
charged.

Replace the batteries (
page 464).
Do not
forget key
This message appears for a
maximum of 60 seconds if the
driver’s door is opened with the
engine shut off and no SmartKey
in the starter switch.
This message is only a reminder.

Insert SmartKey in the starter switch.
or

Take the SmartKey with KEYLESS-GO*
with you when leaving the vehicle.

451 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
L
Malfunction
Drive to workshop
One or more main functions of the
Tele Aid* system are malfunctioning.

Have the Tele Aid* system checked
by an authorized Mercedes-Benz Light
Truck Center.
Battery
Drive to workshop
The emergency power battery for the
Tele Aid* system is malfunctioning. If the
vehicle battery is also malfunctioning or
drained, Tele Aid* will not be operational.

Have the Tele Aid* system checked
by an authorized Mercedes-Benz Light
Truck Center.
t
Function
unavailable
This display appears if buttont or
son the multifunction steering wheel
is pressed and the vehicle is not equipped
with a telephone.
W
Washer fluid
Check level
The fluid level has dropped to
about
1/3of total reservoir capacity.

Add washer fluid (
page 352).