2003 MERCEDES-BENZ ML320 brake

265 Practical hints
Jump starting
The battery is located in the engine com-
partment.
Make sure that the two vehicles do not
touch.

Turn off all electrical consumers.

Apply parking brake.

Shift selector lever to positionP.1Positive terminal
2Cable clamps
3Negative terminal
4Cover

Remove cover4 from positive terminal
on both vehicles.

Connect positive terminals1 on the
batteries with the jumper cables. Start
with the charged battery.
!Jump starting may only be performed
on the battery installed in the engine
compartment.
Avoid repeated and lengthy starting at-
tempts.
Do not attempt to start the engine us-
ing a battery quick charge unit.
If engine does not run after several un-
successful starting attempts, have it
checked at the nearest authorized
Mercedes-Benz Light Truck Center.
Excessive unburned fuel generated by
repeated failed starting attempts may
damage the catalytic converter.
Make sure the jumper cables do not
have loose or missing insulation.
Make sure the cable clamps do not
touch any other metal part while the
other end is still attached to a battery.
Warning!
G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries
(page 261).

268 Practical hintsTowing the vehicleWarning!
G
If circumstances require towing the vehicle
with all wheels on the ground, always tow
with a tow bar if:

the engine will not run


there is a malfunction in the power sup-
ply or in the vehicle’s electrical system
Prior to towing the vehicle with all wheels on
the ground, make certain that the key is in
steering lock position2.
If the key is left in steering lock position0
for an extended period of time, it can no
longer be turned in the switch. In this case,
the steering is locked. To unlock, remove
key from steering lock and reinsert.
Warning!
G
With the engine not running, there is no
power assistance for the braking and steer-
ing systems. In this case, it is important to
keep in mind that a considerably higher de-
gree of effort is necessary to brake and
steer the vehicle. Adapt your driving accord-
ingly.iTo signal turns while being towed with
hazard warning flasher in use, turn key
in steering lock to position2 and acti-
vate combination switch for left or right
turn signal in usual manner – only the
selected turn signal will operate.
Upon canceling the turn signal, the haz-
ard warning flasher will operate again.iThe vehicle cannot be started via
tow-start.
!When towing the vehicle with all wheels
on the ground, note the following:
With the automatic central locking acti-
vated and the key in steering lock
position2, the vehicle doors lock if the
left front wheel is turning at vehicle
speeds of approx. 9 mph (15 km/h) or
more.
To prevent the vehicle doors from lock-
ing, deactivate the automatic central
locking (
page 89).
Towing of the vehicle should only be
done using the towing eye. Never at-
tach tow cable, tow rope or tow rod to
vehicle chassis, frame or suspension
parts.

284 Technical dataFuels, coolants, lubricants etc.
Fuels, coolants, lubricants etc.Capacities
Vehicle components and their respective
lubricants must match.Therefore use only brand tested and rec-
ommended by us.Please refer to the Factory Approved Ser-
vice Products pamphlet, or inquire at your
Mercedes-Benz Light Truck Center.
Model
Capacity
Fuels, coolants, lubricants etc.
Engine with oil filter
ML 320, ML 350,
ML 500
8.5 US qt (8.0 l)
Recommended engine oils
ML 55 AMG
8.0 US qt (7.5 l)
Recommended engine oils
Automatic transmis-
sion
9.0 US qt (8.5 l)
MB Automatic Transmission Oil
1
1MB part no. 001 989 21 03 10Transfer case
1.6 US qt (1.5 l)
(Dexron 3 or Dexron 2E)
Rear axle
1.3 US qt (1.25 l)
(Hypoid gear oil SAE 90, 85 W 90)
Front axle
1.2 US qt (1.1 l)
(Hypoid gear oil SAE 90)
Power steering
approx. 0.65 US qt (0.6 l)
MB Power Steering Fluid
Front wheel hubs
approx. 1.5 oz (43 g) each
High temperature roller bearing grease
Brake system
0.75 US qt (0.7 l)
MB Brake Fluid (DOT 4+)

286 Technical dataFuels, coolants, lubricants etc.Engine oils
Engine oils are specifically tested for their
suitability in our engines. Therefore, use
only engine oils recommended by
Mercedes-Benz. Information on recom-
mended brands is available in the Factory
Approved Service Products pamphlet, or at
your authorized Mercedes-Benz Light
Truck Center.Engine oil additives
Do not blend oil additives with engine oil.
They may be harmful to the engine opera-
tion.
Damage or malfunctions resulting from
blending oil additives are not covered by
the Mercedes-Benz Limited Warranty.Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil is used in the air condition-
ing system.Never use R-12 (CFC) or mineral-based lu-
bricating oil, otherwise damage to the
system will occur.
Brake fluid
During vehicle operation, the boiling point
of the brake fluid is continuously reduced
through the absorption of moisture from
the atmosphere. Under extremely strenu-
ous operating conditions, this moisture
content can lead to the formation of bub-
bles in the system, thus reducing the sys-
tem’s efficiency.
Therefore, the brake fluid must be re-
placed every two years, preferably in the
spring.
Only brake fluid approved by
Mercedes-Benz is recommended. Your au-
thorized Mercedes-Benz Center will pro-
vide you with additional information.
Premium unleaded gasoline
!To maintain the engine’s durability and
performance, premium unleaded gaso-
l i n e m u s t b e u s e d . I f p r e m i u m u n l e a d e d
is not available and low octane fuel is
used, follow these precautions:

Have the fuel tank only partially
filled with unleaded regular and fill
up with premium unleaded as soon
as possible.


Avoid full throttle driving and abrupt
acceleration.


Do not exceed an engine speed of
3000 rpm if the vehicle is loaded
with a light load such as two per-
sons and no luggage.


Do not exceed 2/3 of maximum ac-
celerator pedal position if the vehi-
cle is fully loaded or operating in
mountainous terrain.

293 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
BabySmart
TM
airbag deactivation
system
This system detects if a special system
compatible child restraint seat is in-
stalled on the front passenger seat. The
system will automatically deactivate
the passenger front airbag when such a
seat is properly installed (indicator
lamp
7
in the instrument cluster
lights up). See your authorized
Mercedes-Benz Light Truck Center for
availability.
BabySmartTM
compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the pas-
senger front airbag if a BabySmart
TM
compatible child seat is installed.BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.
Bi-Xenon headlamps*
Headlamps which use an electric arc as
the light source and produce a more in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.
CAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or
windshield wiping.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.
Cruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.
Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced.

296 Technical termsRON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as AN-
TI-KNOCK INDEX.
Shift lock
When the vehicle is parked, this lock
prevents the transmission selector le-
ver from being moved out of positionP
without key turned and brake pedal de-
pressed.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.Tele Aid System*
(T
elematic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
viding that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.
Telematics*
A combination of the terms “telecom-
munications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.Tire speed rating
Part of tire designation; indicates the
speed range for which a tire is ap-
proved.
Traction
Force exerted by the vehicle on the
road via the tires.
Transfer case
Speed of rotation/torque converter
that works together with the ->auto-
matic transmission. In the LOW mode
off-road position, the transfer case de-
creases the output rotational speed of
the ->automatic transmission by ap-
proximately half. This results in a corre-
sponding increase of torque on the
drive axles.
The vehicle then has nearly double the
driving force but drives only approxi-
mately half as fast.

300 Index
Passenger 59
Safety guidelines 57
Side impact 59
Window curtain 59
Alarm
Audible 70, 79
Canceling 79
Visual 78
Alarm system
Anti-theft 78
Anticorrosion/antifreeze 288
Antiglare
Automatic 119
Antilock brake system (ABS) 293
Anti-theft alarm system
Arming 78
Canceling alarm 79
Disarming 79
Anti-theft systems
Anti-theft alarm system 78
Immobilizer 78
Tow-away alarm, glass breakage
sensor 79
Aquaplaning see Hydroplaning 183Armrest
Storage compartment in front of 153
Storage spaces 153
Armrest in rear seat bench 155
Ashtray
Front center console 156
Rear center console 157
At the gas station 200
ATF (automatic transmission fluid) 206
Attaching a trailer 194
Automatic antiglare for rear
view mirror 119
Automatic central locking
Activating 89
Deactivating 89
Automatic climate control 124
Adjusting air distribution 127
Adjusting air volume 127
Air conditioning 129
Air outlets 132
Air recirculation mode 128
Basic setting 127
Changing basic setting 127
Defrosting 128Economy mode 125
Rear passenger compartment 131
Rear window defroster 131
Residual heat utilization 130
Residual ventilation 130
Switching off 127
Switching on 126
Automatic headlamp mode 103
Automatic interior lighting control
Activating 107
Deactivating 107
Automatic locking when driving 89
Automatic transmission 113
Accelerator position 117
Emergency operation (Limp Home
Mode) 117
Gear ranges 114
Gear selector lever position 115
Gear shifting malfunctions 117
Kickdown 117
Manual shifting 113
One-touch gearshifting 113
Selector lever position 113
Towing a trailer 117
Transmission fluid 206

301 Index
B
BabySmart
TM
Airbag deactivation system 65
Compatible child seats 65, 293
Self-test 66
BabySmart
TM airbag deactivation
system 293
Backrest tilt 35
Backup lamps 248, 251
Bulbs 248
BAS 73, 293
Malfunction indicator lamp 225, 226
Warning lamp 225, 226
Batteries, remote control
Changing 243
Batteries, vehicle 207
Battery discharged
Jump starting 264
Battery indicator lamp
Indicator lamp 233
Battery, vehicle 207, 261
Charging 262
Disconnecting 261
Reconnecting 262
Reinstalling 262
Removing 262Bi-Xenon headlamps* 293
Block heater 214
Blocking
Rear door window operation 69
Brake assist system (BAS) 293
Brake fluid 286
Brake lamp bulbs 248
Brake lamp, high mounted 248
Brake pad wear
Indicator lamp 234
Brakes 180
Warning lamp 228
Break-in period 178
Bulbs, replacing 247
Additional turn signals 247
Backup lamps 248
Brake lamps 248
Fog lamps 247
Front fog lamp 251
Front lamps 247
High beam 247
High mounted brake lamp 248, 252
License plate lamps 248, 252
Low beam 247
Parking lamps 247, 248, 250
Rear fog lamp 248Rear fog lamps 251
Rear side marker lamp bulbs 251
Side marker lamps 247, 248, 250
Standing lamps 247, 248
Tail lamp assemblies 248, 251
Turn signal lamps 247, 248, 250
C
CAC (Customer Assistance Center) 293
Calibrating compass 174
California
Important notice 11
Calling up
Service indicator 216
CAN system 293
Capacities
Fuels, coolants, lubricants, etc. 284
Cargo area cover blind* 143
Closing 143
Installing 143
Opening 143
Removing 143
Cargo area see Cargo compartment 85
Cargo compartment
Liftgate 85
Lighting 109
Tie-down rings 140