Mercedes-Benz ML320. Service manual - part 121

 

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Mercedes-Benz ML320. Service manual - part 121

 

 

311

Technical terms

ABS

(Antilock Brake System)
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. 

BabySmart

TM

 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

(Brake Assist System)
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

(Customer Assistance Center)
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

(Controller Area Network)
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 pas-
senger compartment needed for vehi-
cle 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.

312

Technical terms

Engine oil viscosity

Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an 
oil can tolerate without becoming thin, 
or the lower the temperature it can tol-
erate without becoming viscous, the 
better the viscosity.

ESP

(Electronic Stability Program)
Improves vehicle handling and direc-
tional stability.

ETD

(Emergency Tensioning Device)
Device which deploys in certain frontal 
and rear collisions exceeding the sys-
tem's threshold to tighten the seat 
belts.
->SRS

FSS

(Flexible Service System)
Service indicator in the speedometer 
display that informs the driver when 
the next vehicle maintenance service is 
due.

Gear range

Number of gears which are available to 
the automatic transmission for shifting. 
The automatic gear shifting process 
can be adapted to specific operating 
conditions using the gear selector 
lever.

GPS

(Global Positioning System)
Satellite-based system for relaying 
geographic location information to and 
from vehicles equipped with special re-
ceivers. Employs CD or DVD digital 
maps for navigation.

GAWR

(Gross Axle Weight Rating)
The GAWR is the maximum permissible 
axle weight. The gross vehicle weight 
on each axle must never exceed the 
GAWR for the front and rear axle indi-
cated on the certification label located 
on the driver’s door pillar.

GVW

(Gross Vehicle Weight)
The GVW comprises the weight of the 
vehicle including fuel, tools, spare 
wheel, installed accessories, passen-
gers and cargo. The GVW must never 
exceed the GVWR, indicated on the 
certification label located on the driv-
er’s door pillar.

313

Technical terms

GVWR

(Gross Vehicle Weight Rating)
This is the maximum permissible vehi-
cle weight. It is indicated on certifica-
tion label located on the driver’s door 
pillar.

Instrument cluster

The displays and indicator/warning 
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer, 
engine temperature and fuel gauge.

Kickdown

Depressing the accelerator past the 
point of resistance shifts the transmis-
sion down to the lowest possible gear. 
This very quickly accelerates the vehi-
cle and should not be used for normal 
acceleration needs.

Line of fall

The direct line that an object moves 
downhill when influenced by the force 
of gravity alone.

Lock button

Button on the door which indicates 
whether the door is locked or un-
locked. Pushing the lock button down 
on an individual door from inside will 
lock that door.

MCS

(Modular Control System)
Information and operating center for 
vehicle sound and communications 
systems, including the radio and the ra-
dio and navigation system, as well as 
for other optional equipment (CD 
changer, telephone, etc.).

Memory function*

Used to store three individual seat, 
steering wheel and mirror positions.

MON

(Motor Octane Number)
The Motor Octane Number for gasoline 
as determined by a standardized meth-
od. It is an indication of a gasoline's 
ability to resist undesired detonation 
(knocking). The average of both the 
MON (Motor Octane Number) and 
->RON (Research Octane Number) is 
posted at the pump, also known as 
ANTI-KNOCK INDEX.

Multifunction display

A display field in the instrument cluster 
used to present information provided 
by the control system.

Parktronic system* (Parking assist)

System which uses visual and acoustic 
signals to assist the driver during park-
ing maneuvers.

314

Technical terms

Poly-V-belt drive

Drives engine-components (alternator, 
AC compressor, etc.) from the engine.

Power train

Collective term designating all compo-
nents used to generate and transmit 
motive power to the drive axles, includ-
ing

engine

clutch/torque converter

transmission

transfer case

drive shaft

differential

axle shafts/axles

Remote Vehicle Diagnostics

Transmission of vehicle data and cur-
rent location to the Mercedes-Benz 
Customer Assistance Center for sub-
scribers to Tele Aid service.

REST

(Residual engine heat utilization)
Feature that uses the engine heat 
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.

Restraint system

Seat belts, belt tensioner, airbags and 
child seat restraint systems. As inde-
pendent systems, their protective func-
tions complement one another.

RON

(Research Octane Number)
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 
ANTI-KNOCK INDEX.

Shift lock

When the vehicle is parked, this lock 
prevents the transmission selector le-
ver from being moved out of position P 
without key turned and brake pedal de-
pressed.

SRS

(Supplemental Restraint System)
Seat belts, emergency tensioning de-
vice and airbags. Though independent 
systems, they are closely interfaced to 
provide effective occupant protection.

 

 

 

 

 

 

 

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