Page 333 of 561

332 OperationDriving instructionsBrakesTo help prevent brake disk corrosion after
driving on wet road surfaces (particularly
salted roads), it is advisable to brake the
vehicle with considerable force prior to
parking. The heat generated serves to dry
the brakes.
If your brake system is normally only sub-
jected to moderate loads, you should occa-
sionally test the effectiveness of the
brakes by applying above-normal braking
pressure at higher speeds. This will also
enhance the grip of the brake pads.
Refer to the description of the Brake Assist
System (BAS) (
page 99).If the parking brake is released and the
brake warning lamp in the instrument clus-
ter stays on and there is no audible warn-
ing (EBP), the brake fluid level in the
reservoir is too low.
Brake pad wear or a leak in the system may
be the reason for low brake fluid in the
reservoir.
Have the brake system inspected immedi-
ately. Contact an authorized
Mercedes-Benz Light Truck Center.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact an authorized
Mercedes-Benz Light Truck Center.
Only install brake pads and brake fluid
recommended by Mercedes-Benz.
Warning!
G
After driving in heavy rain for some time
without applying the brakes or through wa-
ter deep enough to wet brake components,
the first braking action may be somewhat
reduced and increased pedal pressure may
be necessary to obtain expected braking ef-
fect. Maintain a safe distance from vehicles
in front.
Resting your foot on the brake pedal will
cause excessive and premature wear of the
brake pads.
It can also result in the brakes overheating,
thereby significantly reducing their effec-
tiveness. It may not be possible to stop the
vehicle in sufficient time to avoid an acci-
dent.
Warning!
G
Make sure not to endanger any other road
users when carrying out these braking
maneuvers.
Page 533 of 561

532 Technical termsMemory function*
Used to store three individual seat,
steering wheel and mirror positions.
MON
(M
otor O
ctane N
umber)
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
The display field in the instrument clus-
ter used to present information provid-
ed by the control system.
Multifunction steering wheel
Steering wheel with buttons for operat-
ing the control system.Normal occupant weight
(
page 387)
Overspeed range
Engine speeds within the red marking
on the tachometer dial. Avoid this en-
gine speed range, as it may result in se-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Occupant distribution
(page 387)
Parktronic (Parking assist)*
System which uses visual and acoustic
signals to assist the driver during park-
ing maneuvers.
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
PRE-SAFE
®*
(Pre
ventive Occupant Safe
ty System)
Vehicles equipped with PRE-SAFE
®*
take preventive measures when the
system senses certain driving dynam-
ics suggesting a possible accident.
Production options weight
(
page 387)
Page 538 of 561

537 Index
B
Backup lamps
Replacing bulbs 466
Bar 386, 529
BAS 99, 529
Batteries, SmartKey
Check lamp 113, 119
Batteries, vehicle
Messages in display 430
Battery discharged
Jump starting 496
Battery, SmartKey 463
Battery, vehicle 487
Charging 495
Dis-/reconnecting 489
Removing/installing 489
Bead 386, 529
Bi-Xenon* headlamps 529
Replacing bulbs 466
Block heater (Canada only) 391
Blocking
Rear door window operation 93
Bottle opener 300
Brake assist system (BAS) 529
Brake fluid 523
Message in display 432Brake lamps
Replacing bulbs 466
Brake pads
Message in display 430
Brakes 332
Warning lamp 405
Break-in period 330
Bulbs, replacing 465
Additional turn signal lamps 466
Backup lamps 466
Bi-Xenon* headlamps 466
Brake lamps 466
Front fog lamp 471
Front fog lamps* 466
Front lamps 466
Headlamps 466
License plate lamps 466, 474
Parking lamps 466
Rear fog lamps 472
Rear side marker lamp bulbs 472
Sidemarker lamps 466
Standing lamps 466
Tail lamp assemblies 472
Tail lamps 466
Turn signal lamps 466C
CAC (Customer Assistance Center) 529
California
Important notice 11
Call priority
Tele Aid* 318
Calling up
Range (distance to empty) 193
Service indicator 393
CAN system 529
Capacities
Fuels, coolants, lubricants, etc. 521
Card holder 300
Cargo compartment
Extending 283
Fuse box 504
Lamp 157
Tie-down rings 281
Cargo compartment cover blind* 288
Closing 288
Installing 289
Opening 288
Removing 288
Cargo tie-down rings 281
Carpets, cleaning 402
Page 550 of 561

549 Index
Potential problems associated with
underinflated and overinflated
tires 375
Pounds per square inch see PSI
Power assistance 331
Power outlets 306
Power seat*
Adjusting backrest tilt 44
Adjusting seat cushion tilt 44
Adjusting seat height 44
Seat fore and aft adjustment 43
Power seats*
Adjusting head restraint height 44
Power tilt/sliding sunroof* 255
Closing 462
Opening 462
Power train 532
Power washer 396
Power windows
Blocking of rear door window
operation 93
Cleaning 400
Door windows 248
Synchronizing 251Practical hints
First aid kit 454
Fuses 503
Jump starting 496
Lamp in center console 414
Lamps in instrument cluster 404
Messages in the display 416
Spare wheel 457
Vehicle jack 456
Vehicle tool kit 454
Premium unleaded gasoline 524
PRE-SAFE
®*81, 532
Preventive occupant safety* see
PRE-SAFE®*
Problems
While driving 62
With vehicle 18
Product information 9
Production options weight 387, 532
Program mode selector switch 533
PSI 387, 388, 533
Q
Quick search
Phone book* 195R
Radio
Selecting stations 170
Selecting stations (satellite*) 171
Radio transmitters, control and
operation 339
Range (distance to empty)
Calling up 193
Range of the sensors
Parktronic* 275
Rear automatic climate control* 244
Rear center console* 308
Rear climate control 228
Rear door window
Blocking operation 93
Rear door window sunshade* 214
Rear fog lamp
Indicator lamp 147
Switching on 151
Rear lamp bulbs
Replacing 472
Rear lamps
Messages in display 442
Rear lamps see Tail lamps
Rear passenger compartment
ventilation 228