2005 MERCEDES-BENZ E320 Engine

16 IntroductionOperating safety
Proper use of the vehicle
Proper use of the vehicle requires that you
are familiar with the following information
and rules:

the safety precautions in this manual


the “Technical data” section in this
manual


traffic rules and regulations


motor vehicle laws and safety stan-
dards
Warning!
G
Work improperly carried out on electronic
components and associated software could
cause them to cease functioning. Because
the vehicle’s electronic components are in-
terconnected, any modifications made may
produce an undesired effect on other sys-
tems. Electronic malfunctions could seri-
ously impair the operating safety of your
vehicle.
See your authorized Mercedes-Benz Center
for repairs or modifications to electronic
components.
Other improper work or modifications on the
vehicle could also have a negative impact on
the operating safety of the vehicle.
Some safety systems only function while the
engine is running. You should therefore nev-
er turn off the engine while driving.
Warning!
G
Heavy blows against the vehicle underbody
or tires / wheels, for example when running
over an obstacle, road debris or a pothole,
may cause serious damage to and impair the
operating safety of your vehicle. If you feel a
sudden strong vibration or ride disturbance,
or you suspect that damage to your vehicle
has occurred, you should turn on your haz-
ard warning flashers, carefully slow down,
and drive with caution to an area which is a
safe distance from the road.
Inspect the vehicle underbody and
tires / wheels for possible damage. If the ve-
hicle appears unsafe, have it towed to the
nearest authorized Mercedes-Benz Center
or other qualified maintenance or repair fa-
cility for further inspection or repairs.
Warning!
G
Various warning labels are attached to your
vehicle. These warning labels are intended
to make you and others aware of various
risks. You should not remove any of these
warning labels unless explicitly instructed to
do so by information on the label itself. Re-
moval of any of these labels may cause you
and others to be unaware of certain risks
which may result in an accident and/or per-
sonal injury.

25 At a glance
Instrument cluster
Item
Page
1
LLeft turn signal indi-
cator lamp
2
vABS/ ESP warning
lamp
357
3
Speedometer
4
Multifunction display
145
5
lDistance warning
lamp
Vehicles without Distronic*:
Warning lamp without func-
tion. It illuminates with the
ignition on. It should go out
when the engine is running.
361
6
KRight turn signal indi-
cator lamp
7
Coolant temperature indi-
cator with:•Coolant temperature
warning lamp
361
Item
Page
8
Tachometer with:1Supplemental Re-
straint System
indicator lamp
364
-Antilock Brake Sys-
tem (ABS) indicator
lamp
356
362
BLow beam headlamp
indicator lamp
50
AHigh beam headlamp
indicator lamp
137
9
Main odometer with:

Selector lever position
46


Program mode
179
a
Clock with:
159
;Brake warning lamp,
USA only
358
3Brake warning lamp,
Canada only
358
Item
Page
?Engine malfunction
indicator lamp, USA
only
359
±Engine malfunction
indicator lamp, Cana-
da only
359
HTire inflation pres-
sure warning lamp*
363
qPreglow indicator
lamp, Diesel engine
only
47
b
Fuel display with:AFuel reserve warning
lamp
362
c
Reset button for:

Resetting trip odometer
143


Adjusting instrument
cluster illumination
142


Confirming new time set-
tings
159

34 Getting startedUnlockingSmartKeyStarter switch0For removing SmartKey
1Power supply to some electrical con-
sumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position.
All lamps (except low beam headlamp
indicator lamp, high beam headlamp in-
dicator lamp, and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary. If
a lamp in the instrument cluster re-mains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 356).
3Starting position
For information on starting the engine us-
ing the SmartKey, see “Starting with the
SmartKey” (
page 46).
iWhen you switch on the ignition, the in-
dicator and warning lamps (except low
beam headlamp indicator lamp, high
beam headlamp indicator lamp, and
turn signal indicator lamps unless acti-
vated) in the instrument cluster come
on. This indicates that the respective
systems are operational. The indicator
and warning lamps (except low beam
headlamp indicator lamp, high beam
headlamp indicator lamp, and turn sig-
nal indicator lamps if activated) should
go out when the engine is running.iThe SmartKey can only be removed
from the starter switch with the gear
selector lever in position P.
!If the SmartKey can still not be turned,
the battery may not be sufficiently
charged.

Check the battery and charge it if
necessary (
page 435).


Get a jump start (
page 436).
To prevent accelerated battery dis-
charge or a completely discharged bat-
tery, always remove the SmartKey from
the starter switch when the engine is
not in operation.

35 Getting started
Unlocking
SmartKey with KEYLESS-GO*
Pressing the KEYLESS-GO start/stop but-
ton on the gear selector lever corresponds
to turning the SmartKey to the various
starter switch positions.
If you firmly depress the brake pedal dur-
ing pressing KEYLESS-GO start/stop but-
ton, the engine starts automatically.
KEYLESS-GO start/stop button1USA only
2Canada only
The SmartKey with KEYLESS-GO must be
located in the vehicle.
Make sure the gear selector lever is set
toP.

Do not depress the brake pedal.
Position 0
Before you press the KEYLESS-GO start/
stop button, the vehicle's on-board elec-
tronics have status 0 (as with SmartKey re-
moved).Position 1

Press KEYLESS-GO start/stop button
once.
This supplies power to some electrical
consumers, such as seat adjustment.
iThe function of the SmartKey overrules
the KEYLESS-GO function.
iIf you now press the KEYLESS-GO
start/stop button

once again, the ignition (position2)
is switched on.


twice, the power supply is again
switched off.

36 Getting startedUnlockingIgnition (or position 2)
Press KEYLESS-GO start/stop button
twice.
This supplies power to all electrical
consumers. All lamps (except low
beam headlamp indicator lamp, high
beam headlamp indicator lamp, and
turn signal indicator lamps unless acti-
vated) in the instrument cluster come
on. If a lamp in the instrument cluster
fails to come on when the ignition is
switched on, have it checked and re-
placed if necessary. If a lamp in the in-
strument cluster remains on after
starting the engine or comes on while
driving, see “Lamps in instrument clus-
ter” (
page 356).For information on starting the engine us-
ing the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
page 47).
iIf you now press the KEYLESS-GO
start/stop button once, the power sup-
ply is again switched off.
iWhen you switch on the ignition, the in-
dicator and warning lamps (except low
beam headlamp indicator lamp, high
beam headlamp indicator lamp, and
turn signal indicator lamps unless acti-
vated) in the instrument cluster come
on. This indicates that the respective
systems are operational. The indicator
and warning lamps (except low beam
headlamp indicator lamp, high beam
headlamp indicator lamp, and turn sig-
nal indicator lamps if activated) should
go out when the engine is running.

46 Getting startedDrivingStarting the engine Automatic transmission
Gearshift pattern for automatic
transmissionPPark position with gear selector lever
lock
RReverse gear
NNeutral
DDrive position
For more information, see the “Controls in
detail” section (
page 177). Starting with the SmartKey
For information on turning off the engine
with the SmartKey, see “Turning off en-
gine” (
page 56).
Gasoline engine:

Make sure the gear selector lever is set
to P.

Do not depress the accelerator.

Turn the SmartKey in the starter switch
to position3 and hold until the engine
starts (
page 34).

Depress the brake pedal.
The selector lever lock is released.
Warning!
G
Inhalation of exhaust gas is hazardous to
your health. All exhaust gas contains carbon
monoxide, and inhaling it can cause uncon-
sciousness and lead to death.
Do not run the engine in confined areas
(such as a garage) which are not properly
ventilated. If you think that exhaust gas
fumes are entering the vehicle while driving,
have the cause determined and corrected
immediately. If you must drive under these
conditions, drive only with at least one win-
dow fully open.
iYou can also use the “touch-start”
function. Turn the SmartKey to
position3 and release it again immedi-
ately. The engine then starts automati-
cally.

47 Getting started
Driving
Diesel engine:
M a k e s u r e t h e g e a r s e l e c t o r l e v e r i s s e t
to P.

Do not depress the accelerator.

Turn the SmartKey in the starter switch
to position2 (
page 34).
The preglow indicator lampq in the
instrument cluster comes on.

As soon as the preglow indicator
lampq goes out, turn the SmartKey
in the starter switch to position3
(page 34) and release it.
The engine starts automatically.

Depress the brake pedal.
The selector lever lock is released.Starting with KEYLESS-GO*
You can start your vehicle without the
SmartKey in the starter switch using the
KEYLESS-GO start/stop button on the
gear selector lever.
For information on turning off the engine
with KEYLESS-GO, see “Turning off with
KEYLESS-GO*” (
page 57).
The SmartKey with KEYLESS-GO must be
located in the vehicle.
KEYLESS-GO start/stop button1USA only
2Canada onlyGasoline engine:

Make sure the gear selector lever is set
toP.

Depress the brake pedal during the
starting procedure. Do not depress ac-
celerator.
The selector lever lock is released.

Press KEYLESS-GO start/stop
button1 once.
The engine starts automatically if the
SmartKey with KEYLESS-GO is in the
vehicle.
Diesel engine:

Make sure the gear selector lever is set
toP.

Depress the brake pedal during the
starting procedure. Do not depress ac-
celerator.
The selector lever lock is released.

Press KEYLESS-GO start/stop
button1 once.
iIf the engine is at operating tempera-
ture, the preglow indicator lampq
may not stay on and you can start the
engine without preglowing.


48 Getting startedDriving
The engine begins to preglow and will
start automatically.
If the engine is at operating temperature,
the preglow indicator lampq may not
stay on and you can start the engine with-
out preglowing:

Press KEYLESS-GO start/stop
button1 until the engine is running.Starting difficulties
If the engine does not start as described,
carry out the following steps:

If you are starting the engine with the
SmartKey, turn SmartKey in starter
switch to position0 and repeat starting
procedure.

If you are starting the engine with
KEYLESS-GO: Close any doors that
may be open to allow for better detec-
tion of the SmartKey with
KEYLESS-GO.
Or:
Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO.

Repeat the starting procedure
(page 46). Remember that extended
starting attempts can drain the battery.

Get a jump start (
page 436).If the engine does not start after several
starting attempts, there could be a mal-
function in the engine electronics or in the
fuel supply system.

Notify an authorized Mercedes-Benz
Center.
Parking brake
1Parking brake pedal
2Parking brake release handle