2003 MERCEDES-BENZ E320 battery

Contents
Adjusting air distribution .............. 177
Adjusting air volume .................... 177
Defrosting .................................... 178
Air recirculation mode.................. 178
Charcoal filter .............................. 180
Rear window defroster ................. 180
Air conditioner ............................. 181
Residual heat and ventilation ....... 182
Rear air conditioning .................... 182
Power windows.................................. 184
Opening and closing the windows 184
Synchronizing power windows ..... 186
Sliding/pop-up roof* ......................... 187
Opening and closing the slid-
ing/pop-up roof* ......................... 187
Synchronizing the
sliding/pop-up roof ...................... 189
Panorama sliding/pop-up roof*......... 190
Panorama sliding/pop-up roof* ... 190
Solar panel* ................................. 193
Driving systems ................................. 194
Cruise control .............................. 194
Distronic* .................................... 197
AIRMATIC DC (Dual Control)* ...... 209
PARKTRONIC system* ................. 212
Loading.............................................. 216Roof rack ...................................... 216
Ski sack* ...................................... 216
Split rear bench seat*................... 219
Folding front passenger seat* ...... 222
Expanding the cargo area* ........... 223
Loading instructions ..................... 224
Cargo tie-down rings ..................... 225
Useful features ................................... 226
Interior storage spaces ................. 226
Ashtrays........................................ 231
Cigarette lighter ............................ 232
12-V socket* ................................ 232
Heated steering wheel* ................ 233
Telephone* ................................... 233
Tele Aid* ....................................... 234
Garage door opener ...................... 243
Operation.......................................... 247
The first 1000 miles (1500km) ........... 248
Driving instructions ............................ 249
Drive sensibly – save fuel.............. 249
Drinking and driving ...................... 249
Pedals ........................................... 249
Power assistance .......................... 250
Brakes........................................... 250Driving off ..................................... 252
Parking ......................................... 252
Tires.............................................. 252
Aquaplaning .................................. 253
Tire traction .................................. 253
Tire speed rating ........................... 254
Winter driving instructions ............ 254
Standing water ............................. 255
Passenger compartment............... 255
Traveling abroad ........................... 255
Control and operation of radio
transmitter.................................... 256
Catalytic converter ....................... 256
Emission control ........................... 257
Coolant temperature .................... 258
At the gas station ............................... 259
Check regularly and before
a long trip ..................................... 260
Engine compartment .......................... 261
Hood ............................................. 261
Engine oil ...................................... 262
Transmission fluid level ................ 264
Coolant level ................................. 264
Battery .......................................... 266
Windshield washer system and
headlamp cleaning system* ......... 267

ContentsTires and wheels ................................ 268
Important guidelines .................... 268
Life of tire ..................................... 269
Direction of rotation ..................... 269
Checking tire inflation pressure ... 269
Rotating wheels............................ 272
Winter driving..................................... 273
Winter tires................................... 273
Block heater (Canada only) .......... 274
Snow chains ................................. 274
Maintenance ...................................... 275
Flexible Service System PLUS (FSS
PLUS) ........................................... 275
Clearing the service indicator....... 275
Service term exceeded................. 276
Calling up the service indicator .... 276
Resetting the service indicator ..... 276
Setting the date for special works 278
Calling up the service data
information ................................... 279
Vehicle care ....................................... 280
Cleaning and care of vehicle ........ 280
Practical hints.................................. 287
What to do if … .................................. 288
Lamps in instrument cluster ........ 288
Lamp in center console ................ 294
Messages in the display ............... 295
Where will I find ...? ........................... 324
First aid kit ................................... 324
Spare wheel ................................. 324
Luggage box ................................. 325
Vehicle tool kit ............................. 326
Unlocking/locking in an emergency .. 327
Unlocking the vehicle ................... 327
Locking the vehicle ...................... 328
Changing batteries ....................... 328
Fuel filler flap emergency release 329
Manually unlocking the
transmission selector lever .......... 330
Opening/closing in an emergency..... 331
Sliding/pop-up roof* or
panorama sliding/pop-up roof* ... 331Replacing bulbs ................................. 332
Bulbs ............................................ 332
Replacing bulbs for front lamps ... 334
Replacing bulbs for rear lamps .... 336
Replacing wiper blades ...................... 337
Replacing wiper blades ................ 337
Flat tire .............................................. 338
Preparing the vehicle ................... 338
Mounting the spare wheel ........... 338
Batteries ............................................ 343
Disconnecting the battery............ 344
Removing the battery................... 344
Charging and reinstalling the
battery ......................................... 344
Reconnecting the batteries .......... 345
Jump starting ..................................... 346
Towing the vehicle ............................. 348
Towing the vehicle ....................... 348
Installing towing eye bolt ............. 350
Fuses ................................................. 352
Fuse box in passenger
compartment ............................... 352

31 Getting started
Unlocking
Starter switch positionsStarter switch0For removing key
1Power supply to some electrical con-
sumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position
3Starting position
Warning!
G
When leaving the vehicle always remove the
key from the starter switch, take the Smart-
Key with KEYLESS-GO* (if so equipped) with
you and lock the vehicle. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. Unsupervised
use of vehicle equipment may cause serious
personal injury.iThe SmartKey can only be removed
from the starter switch with the gear
selector lever in position P.
!If the key is left in starter switch
position0 for an extended period of
time, it can no longer be turned in the
starter switch.

Remove the key from the starter
switch and reinsert.
If the key can still not be turned, the
battery may not be sufficiently
charged.

Check the battery and charge it
if necessary (
page 266).

Get a jump start (
page 346).
To prevent accelerated battery dis-
charge or a completely discharged bat-
tery, always remove the key from the
starter switch.

44 Getting startedDrivingStarting with the key
Turn the key in the starter switch to
position3 and hold until the engine
starts (
page 31).

Depress the brake pedal.
The selector lever lock is released.
For information on turning off the engine
with the key, see “Turning off the engine”
(
page 51).
Starting with KEYLESS-GO*
You can start your vehicle without a key
using the KEYLESS-GO start/stop button
on the gear selector lever.1KEYLESS-GO start/stop button

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.
For information on turning off the engine
with KEYLESS-GO, see “Turning off with
KEYLESS-GO*” (
page 53).Starting difficulties
If the engine does not start as described,
carry out the following steps:

If you are starting the engine with the
key, turn key in starter switch to
position0 and repeat starting proce-
dure.

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 key as radio
signals from another source may be in-
terfering with the SmartKey with
KEYLESS-GO*.

Repeat the starting procedure
(page 43). Remember that extended
starting attempts can drain the battery.
iYou can also use the "touch-start" func-
tion. Turn the key to position3 and re-
lease it again immediately. The engine
then starts automatically.
!Ensure that the brake pedal is de-
pressed when starting the engine.

81 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating

With the key: Removing the key from
the starter switch activates the immo-
bilizer.


With KEYLESS-GO*: Turning off the en-
gine by means of the KEYLESS-GO
start/stop button on the gear selector
lever activates the immobilizer.Deactivating


With the key: Inserting the key in the
starter switch deactivates the immobi-
lizer.


With KEYLESS-GO*: Starting the en-
gine by means of the KEYLESS-GO
start/stop button on the gear selector
lever deactivates the immobilizer.
iIn case the engine cannot be started
(yet the vehicle’s battery is charged),
the system is not operational. Contact
an authorized Mercedes-Benz Center
or call 1-800-FOR-MERCedes (in the
USA), or 1-800-387-0100 (in Canada).

86 Controls in detailLocking and unlockingIn the "Controls in detail" section you will
find detailed information on how to oper-
ate the equipment installed on your vehi-
cle. If you are already familiar with the
basic functions of your vehicle, this section
will be of particular interest to you.
To quickly familiarize yourself with the ba-
sic functions of the vehicle, refer to the
"Getting started" section of this manual.
The corresponding page numbers are giv-
en at the beginning of each segment.
Locking and unlockingKeys
Your vehicle comes supplied with two
SmartKeys with remote controls and a re-
movable mechanical key. The locking tabs
for the mechanical key portion of the two
keys are a different color to help distin-
guish each key unit.
The SmartKey provides an extended oper-
ating range. To prevent theft, however, it is
advisable to only unlock the vehicle when
you are in close proximity to it.
The Smartkey centrally locks and unlocks

the doors


the trunk


the fuel filler flap
SmartKey with remote controls1‹ Lock button
2Š Unlock button for the trunk lid
3Mechanical key locking tab
4ΠUnlock button
5Battery check lamp
6Â Panic button (
page 72).
iYou can also open and close the power
windows (
page 184) and slid-
ing/pop-up roof* (
page 187) or pan-
orama sliding/pop-up roof*
(
page 192) using the SmartKey.
!To prevent possible malfunction, avoid
exposing the key to high levels of elec-
tromagnetic radiation.

87 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press buttonŒ.
All turn signal lamps blink once. The
locking knobs in the doors move up.
The vehicle will lock again automatically
within approximately 40 seconds of un-
locking if neither door nor trunk is opened,
the SmartKey is not inserted in the starter
switch, or the central locking switch is not
activated.
Global locking

Press button‹.
All turn signal lamps blink three times.
The locking knobs in the doors move
down.Selective setting
If you frequently travel alone, you may wish
to reprogram the key so that
pressingŒ only unlocks the driver’s
door and the fuel filler flap.

Press and hold buttonsŒ and‹
simultaneously for about five seconds
until battery check lamp5 blinks twice.
The key will then function as follows:
Unlocking driver’s door and fuel filler
flap
Press buttonΠonce.
Global unlocking

Press buttonΠtwice.
Global locking

Press button‹.Restoring to factory setting

Press and hold buttonsŒ and‹
simultaneously for about six seconds
until battery check lamp5 blinks twice.Warning!
G
When leaving the vehicle always remove the
key from the starter switch, take the Smart-
Key with KEYLESS-GO (if so equipped) with
you and lock the vehicle. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. It is possible for
children to open a looked door from the in-
side, which could result in an accident or se-
rious injury.

88 Controls in detailLocking and unlocking
Checking the batteries
Press button‹ orŒ.
Battery check lamp5 lights up briefly
to indicate that the key batteries are in
order.Unlocking the trunk lid
You can unlock the trunk separately.
A minimum height clearance of 5.75 ft.
(1.75 m) is required to open the trunk lid.

Press and hold button Š until trunk
opens.
The trunk can also be opened from its in-
side in an emergency, see "Trunk lid emer-
gency release" (
page 97).
!If you can no longer lock or unlock the
vehicle with the key, then either the
batteries in the SmartKey are dis-
charged or the key is malfunctioning.

Check the batteries in the key
(page 88) and replace them if
necessary (
page 328).
or


Use the mechanical key to lock and
unlock the doors (
page 327) and
the trunk lid (
page 98) as re-
quired.
If the key is malfunctioning, contact an
authorized Mercedes-Benz Center.
!If battery check lamp5 does not light
up briefly during check, then the key
batteries are discharged.
Replace the batteries (
page 329).
You can obtain the required batteries
at any authorized Mercedes-Benz Cen-
ter.
!The trunk lid swings upwards automat-
ically. Always make sure that there is
sufficient overhead clearance.