331 Operation
Maintenance
Calling up the maintenance service indicator
You can call up the maintenance service in-
dicator display, in the multifunction dis-
play, every time, to check when the next
maintenance service is due.
Switch on the ignition (
page 38).
The standard display of the control sys-
tem appears (
page 147).
Press buttonè orÿ on the mul-
tifunction steering wheel repeatedly
until the standard display appears in
the multifunction display (
page 141).
Press buttonk or j until the
maintenance service indicator display
with the service symbol9 and the
service deadline appears in the multi-
function display.Resetting the maintenance service
indicator
In the event that the maintenance service
on your vehicle is not carried out by an au-
thorized Mercedes-Benz Center, you can
have the maintenance service indicator re-
set. The automotive maintenance facility
carrying out the maintenance service will
find the information for resetting the main-
tenance service indicator in the mainte-
nance-relevant literature for your vehicle.
Such literature is available from either your
authorized Mercedes-Benz Center or
directly from Mercedes-Benz.
i
The menu overview can be found on
(
page 145).
i
If 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
message or the maintenance service indicator
display.
Do not confuse the maintenance service indica-
tor with the engine oil level indicator:.
i
If the maintenance service indicator was in-
advertently reset, have an authorized
Mercedes-Benz Center correct it.
Only reset if the proper maintenance service has
been performed. Resetting the system without
performing the proper service as called for by
the maintenance service indicator will result in
engine damage and/or other vehicle damage not
covered by the Mercedes-Benz Limited
Warranty.
386 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
.
Right mirror
turn signal
The turn signal in the right exterior rear
view mirror is malfunctioning. This mes-
sage will only appear if a critical number of
LEDs have stopped working.
Contact an authorized Mercedes-Benz
Center as soon as possible.
L
Tele Aid
inoperative
One or more main functions of the
Tele Aid system are malfunctioning.
Have the Tele Aid system checked by
an authorized Mercedes-Benz Center.
Tele Aid
battery
The emergency power battery for the
Tele Aid system is malfunctioning. If the
vehicle battery is also dead, Tele Aid will
not be operational.
Have the Tele Aid system checked by
an authorized Mercedes-Benz Center.
1
Restraint system
malfunction
Visit workshop
The system is malfunctioning.
Drive with added caution to the near-
est authorized Mercedes-Benz Center.
Warning!
G
In the event a malfunction of the SRS is indi-
cated as outlined above, the SRS may not be
operational.
For your safety, we strongly recommend
that you contact an authorized
Mercedes-Benz Center immediately
to have the system checked; otherwise the
SRS may not be activated when needed in
an accident, which could result in serious or
fatal injury, or it might deploy unexpectedly
and unnecessarily which could also result in
injury.
