2004 MERCEDES-BENZ E320 key

310 Practical hintsWhat to do if …
What to do if …Lamps in instrument clusterGeneral information:
If a bulb in the instrument cluster fails to
come on during the bulb self-check when turning the SmartKey in the starter switch
to position2, have it checked and replaced
if necessary.Problem
Possible cause
Suggested solution
-
The yellow ABS malfunction
warning lamp comes on while
driving.
The ABS has detected a malfunction and has
switched off. The BAS and the ESP are also
switched off (see messages in display).
The SBC brake system is still functioning nor-
mally but without the ABS available.
If the ABS control unit is malfunctioning, oth-
er systems such as the Parktronic system*,
Distronic*, or the automatic transmission
may also be malfunctioning.

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

Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.

Read and observe messages in the
display (
page 318).
The charging voltage has fallen below
10 volts. The ABS has switched off.
When the voltage is above this value
again, the ABS is operational again.
If necessary, have the generator and
battery checked.

318 Practical hintsWhat to do if …Messages in the display
The control system shows warning and
malfunction messages in the multifunction
display.
Certain warning and malfunction messag-
es are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in
this Operator’s Manual.
Selecting the malfunction memory menu in
the control system (
page 129) displays
both cleared and uncleared messages.
High-priority messages appear in the mul-
tifunction display in red color.
Certain messages of high priority cannot
be cleared from the multifunction display
using the reset button.Other messages of high priority and mes-
sages of less immediate priority can be
cleared from the multifunction display us-
ing the reset button (
page 22) and are
then stored in the malfunction message
memory (
page 137).
On the pages that follow, you will find a
compilation of the most important warning
and malfunction messages that may ap-
pe ar i n the di spl ay . High pr iori ty m es sa ge s
appear on a red background.
Warning!
G
All categories of messages contain impor-
tant information which should be taken note
of and, where a malfunction is indicated, ad-
dressed as soon as possible at an autho-
rized Mercedes-Benz Center.
Failure to repair condition noted may cause
damage not covered by the Mercedes-Benz
Limited Warranty, or result in property dam-
age or personal injury.
Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative.
Contact your nearest authorized
Mercedes-Benz Center.iTurning the SmartKey in the starter
switch to position2, or pressing the
KEYLESS-GO* start / stop button twice
to position2 causes all lamps as well
as the multifunction display to come
on. Ensure that they are all in working
order before starting your journey.

323 Practical hints
What to do if …
Display
Display message
Possible cause
Possible solution
ESP
not available!
See Operator’s Manual
The ESP is deactivated because of a
malfunction or interrupted power
supply.
The SBC brake system is still func-
tioning normally.

Synchronize the ESP. With the vehicle sta-
tionary, turn the steering wheel completely
to the left and then to the right to synchro-
nize the ESP.
If the ESP message does not go out:

Continue driving with added caution.

Visit an authorized Mercedes-Benz Center
as soon as possible.
Failure to follow these instructions increases
the risk of accident.
P
Gear selector lever in P
You have turned off the engine with
the KEYLESS-GO* start / stop but-
ton* and opened the driver’s door.

Place the gear selector lever in positionP.
P/N
Shift to N or P
You have attempted to start the en-
gine with the KEYLESS-GO*
start/stop button while the gear se-
lector lever was in positionR orD.

Place the gear selector lever in positionP or
N.

335 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
A
Reserve fuel
The fuel level has dropped below the re-
serve mark.

Refuel at the next gas station
(page 278).
Y
Hood open!
You are driving with the hood open.

Close the hood (
page 281).
F
Key
Check battery!
The SmartKey with KEYLESS-GO* batter-
ies are discharged.

Change the batteries (
page 355).
Key
not recognized!
The SmartKey with KEYLESS-GO* is not
recognized while the engine is running
because

the SmartKey with KEYLESS-GO* is
not in the vehicle


there is strong radio-frequency inter-
ference

Stop the vehicle as soon as it is safe
to do so.

Search for the SmartKey.
Otherwise the vehicle cannot be cen-
trally locked nor can the engine be
started again after the engine is
stopped.
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.

Change the position of the SmartKey
in the vehicle.

Operate the vehicle with the Smart-
Key in the starter switch if necessary.

336 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
F
Key detected
in vehicle!
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.

Take the SmartKey out of the vehicle.
Keyless go
Check system
The KEYLESS-GO* system is malfunction-
ing.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Key
Do not forget key
This display 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.

Take the SmartKey with KEY-
LESS-GO* with you when leaving the
vehicle.
Remove key
!
You have forgotten to remove the Smart-
Key.

Remove the SmartKey from the start-
er switch.
Replace key
There is no additional code available for
SmartKey or SmartKey with
KEYLESS-GO*.

Visit an authorized Mercedes-Benz
Center as soon as possible.

339 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
.
Marker light
,
front left
The front left side marker lamp is mal-
functioning.

Replace the bulb as soon as possible.
Marker light
front right
The front right side marker lamp is mal-
functioning.

Replace the bulb as soon as possible.
Park. light, front left
Back-up light on!

The left parking lamps are malfunction-
ing. A backup bulb is being used.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Park. light,
front right
Back-up light on!

The right parking lamps are malfunction-
ing. A backup bulb is being used.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Rear foglight
Back-up light on!

The rear fog lamp is malfunctioning. A
backup bulb is being used.

Replace the bulb as soon as possible.
Reverse light, left
The left reverse light is malfunctioning.

Replace the bulb as soon as possible.
Reverse light, right
The right backup lamp is malfunctioning.

Replace the bulb as soon as possible.
Switch off lights!
Lamps have been turned on although the
SmartKey in the starter switch is in posi-
tion 0.

Switch off the headlights.
Tail light, left
Back-up light on!
The left tail lamp is malfunctioning. A
backup bulb is being used.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Tail light, right
Back-up light on!
The right tail lamp is malfunctioning. A
backup bulb is being used.

Visit an authorized Mercedes-Benz
Center as soon as possible.

353 Practical hints
Unlocking / locking in an emergency
Unlocking / locking in an emergency
Unlocking the vehicle
If you are unable to unlock the vehicle with
the SmartKey, open the driver’s door and
the trunk using the mechanical key.
1Mechanical key locking tab
2Mechanical key

Move locking tab1 in the direction of
the arrow and slide mechanical key2
out of the housing.Unlocking the driver’s door
3Unlocking
4Locking

Unlock the door with the mechanical
key. To do so, push the mechanical key
in the lock until it stops and turn it to
the left.
iUnlocking your vehicle with the me-
chanical key will trigger the anti-theft
alarm system. To cancel the alarm, do
one of the following:

Press button Œ or ‹ on the
SmartKey.


Insert the SmartKey in the starter
switch.


Press the KEYLESS-GO* start/stop
button (
page 33).

354 Practical hintsUnlocking / locking in an emergencyUnlocking the trunk
A minimum height clearance of 5.90 ft
(1.80 m) is required to open the trunk lid.
If you are unable to unlock the trunk with
the SmartKey or KEYLESS-GO*, open the
trunk with the mechanical key.
The handle is located above the rear li-
cense plate recess.
1Unlocking in an emergency
2Handle
Insert the mechanical key into the
trunk lid lock.

Turn the mechanical key counterclock-
wise to position1 and hold it in this
position.

Pull trunk lid handle2 and lift the
trunk lid.
Locking the vehicle
If you are unable to lock the vehicle with
the SmartKey, lock it with the mechanical
key as follows:
Close the passenger doors and the
trunk.

Press the central locking switch in the
cockpit (
page 107).

Check to see whether the locking
knobs on the passenger doors are still
visible. If necessary, push them down
manually.

Slide mechanical key2 out of the
SmartKey.

Lock the driver’s door with the me-
chanical key (
page 354).

Check if the trunk is locked. If neces-
sary lock the trunk with the mechanical
key (if appilcable) (
page 105).
!Always make sure there is sufficient
overhead clearance.iUnlocking your vehicle with the me-
chanical key will trigger the anti-theft
alarm system. To cancel the alarm, do
one of the following:

Press buttonŒ or‹ on the
SmartKey.


Insert the SmartKey in the starter
switch.
Vehicles with KEYLESS-GO*:


Grasp the outside door handle.


Press the start /stop button.