2008 MERCEDES-BENZ R350 child seat

441 Practical hints
What to do if …
Display messagePossible
cause/consequencePossible solution
Monitor the 59indicator lamp on the center console (page 81) and
the multifunction display in the instrument cluster (
page 29) for the following:
With the seat unoccupied and the ignition turned on,

the 59indicator lamp on the center console should illuminate and
remain illuminated, indicating that the OCS (
page 77) has deactivated the air
bag.

the message Front Passenger Airbag Enabled See Operator’s Manual or the
message
Front Passenger Airbag Disabled See Operator’s Manual should
not appear in the multifunction display at any time the seat is unoccupied. Wait
at least 60 seconds for the system to complete the necessary check cycles and
to make sure neither message appears in the multifunction display.
If above conditions are met, you can occupy the front passenger seat again.
Depending on the front passenger classification sensed by the OCS (
page 77),
the 59indicator lamp will remain illuminated or go out.
If above conditions are not met, the system is not working properly. Have the
system checked as soon as possible by an authorized Mercedes-Benz Light Truck
Center.
Warning!G
If the 59indicator lamp re-
mains out even after performing the above
corrective steps, do not have any children
12 years old and under and other small individuals use the front passenger seat
until the system has been repaired.

503 Practical hints
Battery
Battery
The battery is located under the front
passenger seat.
The battery should always be sufficiently
charged in order to achieve its rated
service life.
If you use your vehicle mostly for
short-distance trips, you will need to have
the battery charge checked more
frequently.
When replacing the battery, always use
batteries approved by Mercedes-Benz.
If you do not intend to operate your vehicle
for an extended period of time, consult an
authorized Mercedes-Benz Light Truck
Center about steps you need to observe.Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.
iMercedes-Benz recommends to have the
battery replaced at authorized Mercedes-Benz
Light Truck Center.
Warning!G
Observe all safety instructions and precau-
tions when handling automotive batteries.
Risk of explosion.
Fire, open flames and smoking
are prohibited when handling
batteries. Avoid creating sparks.
Battery acid is caustic. Do not
allow it to come into contact
with skin, eyes or clothing.
Wear suitable protective cloth-
ing, especially gloves, apron and
faceguard.
Wear eye protection.
Rinse any acid spills imme-
diately with clear water. Contact
a physician if necessary.
Keep children away.
Follow the instructions in this
Operator’s Manual.

547 Index
Bleeding the fuel system (diesel
engine) 502
Bolts, Spare wheel 498
Bottle opener 309
Brake Assist System see BAS
Brake fluid 539
Checking 355
Messages in the multifunction
display 447
Brake lamp
Cleaning lenses 407
Messages in the multifunction
display 455–460
Replacing bulbs 480
Brake pads 340
Messages in the multifunction
display 445
Brakes 340
Warning lamp 415
Break-in the vehicle 338
Bulbs, replacing see Replacing bulbsC
CAC (Customer Assistance Center) 17
California retail buyers and lessees,
Important notice for 11
Call priority, Tele Aid* 328
Can holder see Cup holder
Capacities and recommended
fuel/lubricants 536
Card holder 32, 309
Cargo compartment
Tie-down rings 290
Cargo compartment cover blind 299
Cargo net* 301
Cargo tie-down rings 290
Carpets, Cleaning 411
Catalytic converter (gasoline
engine) 349
CD changer* 167, 304
CD player 167
Center console 31
Central locking 183
Automatic 126
Locking/unlocking from the
inside 126Central locking switch 126
Certification label 524, 525
CHECK ENGINE malfunction indicator
lamp 417, 418
Checking tire pressure electronically
Advanced Tire Pressure Monitoring
System (Advanced TPMS)*, (Canada
only) 379
Tire Pressure Monitoring System
(TPMS), (USA only) 376
Child safety
Infant and child restraint systems 88
Children in the vehicle 87
Air bags 73, 89
Blocking rear door window
operation 97
Indicator lamp, Front passenger front
air bag 81
Infant and child restraint
systems 91, 92
LATCH-type child seat anchors 91
Occupant Classification System
(OCS) 77
Cigarette lighter 313

553 Index
H
Halogen headlamps see Headlamps
Hands-free microphone 33
Hard plastic trim items, cleaning 411
Hazard warning flasher 150
Head restraints
Active head restraint 86, 133
Front seats 45
Rear seats 135, 136
Headlamp cleaning system* 203, 362
Reservoir capacity 538
Headlamp shut-off delay see Delayed
shut-off, Exterior lamps
Headlamps
Automatic headlamp mode 144
Bi-Xenon* 481
Cleaning lenses 407
Cleaning system* 203, 362
Halogen 481
Light sensor, Messages in the
multifunction display 455
Manual headlamp mode 144
Messages in the multifunction
display 455–460
Replacing bulbs 480, 481
Switch 58, 143Headliner, Cleaning 411
Heated seats see Seats
Heated steering wheel* 318
High beam flasher 58, 148
High beam headlamps
Indicator lamp 29
Messages in the multifunction
display 456
Replacing 480
Switching on 58, 147
High mounted brake lamp 481
Hinged quarter windows* see
Power windows
Hood 356
Messages in the multifunction
display 452
Opening 356
Hooks
Loading 291
Horn 25
HVAC see Climate control or
Automatic climate control (3-zone)*
Hydroplaning 344I
Identification label see Labels
Ignition 40, 53, 66
Immobilizer 106
Indicator lamps see Lamps, Indicator and
warning
Infant and child restraint systems see
Children in the vehicle
Inflation pressure see Tires, Inflation
pressure
Information button see Tele Aid*
Infrared reflecting windshield* 336
Inside door handle 118
Instrument cluster 26, 154
Illumination brightness 154
Lamps 414
Messages in the multifunction
display 427–466
Multifunction display 157
Selecting language 174

555 Index
Messages in the multifunction
display 453–454
Opening the power windows
(Summer opening feature) 244
Opening the tilt/sliding panel*
(Summer opening feature) 244
Opening the tilt/sliding sunroof*
(Summer opening feature) 244
Remote control 113
Replacing batteries 479
Selective settings 117
Start/stop button 41
Starter switch positions 39, 41
Starting the engine 54
Turning off engine 66
Unlocking and opening, Power
tailgate* 121
Kickdown 197
Kilopascal 394L
Labels 524
Certification label 524
Emission control information 525
Engine number 525
Paint code 524
Vehicle Identification Number
(VIN) 525
Lamps, exterior 481
Front 481
Light sensor, Messages in the multi-
function display 455
Messages in the multifunction
display 455–460
Rear 481
Lamps, Indicator and warning
ABS 27, 414, 415
Brakes 27, 415
Center console 31, 425
CHECK ENGINE 29, 417, 418
Distance warning lamp* 266
Engine diagnostics 29, 417, 418
ESP
®27, 419
Front passenger front
air bag off 76, 77, 81, 82, 425Fuel reserve 29, 424
High beam headlamps 29
Instrument cluster 26, 414
Parktronic* 283, 284
Preglow indicator, Diesel engine 29
Seat belt telltale 29, 82, 420
Seat heating* 139
Seat ventilation* 140
SRS 29, 70, 85, 424
Turn signals 27
Language, Setting 174
LATCH-type child seat anchors see
Children in the vehicle
Leather upholstery, Cleaning and
care of 412
License plate lamps 481
Messages in the multifunction
display 457
Replacing bulbs 481, 488
Light alloy wheels, Cleaning 410
Light sensor
Messages in the multifunction
display 455
Lighter see Cigarette lighter

557 Index
Multifunction display
messages 427–466
ABS 429, 436
AIRMATIC* 465
Brake fluid 447
Brake pads 445
Coolant 448–450
Cruise control 430
Doors 452
EBP 446
Engine coolant 448–450
ESP
®435, 436
Fog lamps, Front 456
Fog lamps, Rear 458
Front passenger front air
bag 438–441
Fuel cap 452
Gear selector lever 437
Headlamps 455–460
Hood 452
Key, SmartKey 454
Key, SmartKey with
KEYLESS-GO* 453, 454Lamps 457
Lamps, exterior 455
Low tire pressure 442, 462, 463
Parking brake 446
Parking lamps 458
SmartKey with KEYLESS-GO* 453
SRS 437
Tele Aid* 461
Telephone* 461
Windshield washer fluid 461
Multifunction steering wheel 30, 158
Button operation 158
N
Navigation system* 167
See separate COMAND system
operating instructions
Net, Cargo* 301
Net, Parcel 307
Neutral gear position, Automatic
transmission 190, 194
New vehicle, Break-in period 338
Night security illumination 146, 179
Normal occupant weight 395
Number, Vehicle Identification
(VIN) 524, 525O
Occupant Classification System see OCS
Occupant distribution 395
Occupant safety 70
Active head restraint 86
Air bags 72
Children and air bags 73, 89
Children in the vehicle 87
Fastening the seat belts 50
Front passenger front air bag off
indicator lamp 77, 81, 82
Infant and child restraint systems 88
LATCH-type child seat anchors 91
OCS 77
OCS, Messages in the multifunction
display 438–441
Seat belts 50, 74
OCS 77
Messages in the multifunction
display 438
Self-test 82

560 Index
Replacing bulbs 480
Backup lamps 480, 481, 487
Brake lamps 480, 481, 487
Fog lamps, Front 480, 481, 483, 485
Fog lamp, Rear 480, 481, 487, 488
Headlamps 480, 481, 483
License plate lamps 480, 481, 487,
488
Low beam headlamps 480, 481, 483
Parking lamps 480, 481, 483, 485,
487, 488
Side marker lamps, Front 480, 487
Side marker lamps, Rear 480, 481,
487, 488
Standing lamps 480, 481, 483, 485,
487, 488
Tail lamps 480, 481, 487
Turn signal lamps 480, 481, 483,
485, 487
Reporting safety defects 18
Reset button, In instrument cluster 154Reset tool
Active head restraints,
Depository 478
Residual heat utilization 235
Restraint system
See Children in the vehicle
See SRS
See Infant and child restraint systems
Reverse gear position, Automatic
transmission 190, 194
Rims 395, 529
Roadside Assistance 12
Roadside Assistance button see Tele Aid*
Roller sunblinds, Panorama roof* 252
RON 540
Roof rack* 288
Rubber parts, Cleaning 410
Run Flat Indicator (Canada only) 374S
Safety
Driving safety systems 99
Occupant safety 70
Reporting safety defects 18
Safety belts see Seat belts
Satellite radio* 166
Scissors-type vehicle jack 470
Seat belt force limiter 85
Seat belt height adjustment 52
Seat belts 82
Children in the vehicle 87
Cleaning 411
Fastening 50
Height adjustment 52
Proper use of 52, 84
Safety guidelines 74
Telltale 29, 82, 420
Seat heating* see Seats 140
Seat ventilation* see Seats
Seating capacity 367