2006 MERCEDES-BENZ R500 fuel cap

439 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
A
Check gas cap
See Operator’s Manual
A loss of pressure has been
detected in the fuel system. The
fuel cap may not be closed
properly or the fuel system may
be leaky.

Check the fuel cap (
page 342).
If it is not closed properly:

Close the fuel cap.
If it is closed properly:

Have the fuel system checked by an
authorized Mercedes-Benz Light Truck
Center.
a
Hood open
Trunk open
You are driving with the hood or
the tailgate open.

Close the hood (
page 345) or the
tailgate (
page 124).
You are trying to lock the vehicle
with the KEYLESS-GO* function
with a door or the tailgate open.

Close all doors and/or the tailgate
(page 124).

521 Technical data
Fuels, coolants, lubricants, etc.
Fuels, coolants, lubricants, etc.
Capacities
Vehicle components and their respective
lubricants must match.Therefore only use products tested and
approved by Mercedes-Benz.Please refer to the Factory Approved
Service Products pamphlet, or inquire at
your Mercedes-Benz Light Truck Center.
Model
Capacity
Fuels, coolants, lubricants, etc.
Engine with oil filter
R 350
R 500
8.5 US qt (8.0 l)
9.0 US qt (8.5 l)
Approved engine oils
Automatic transmis-
sion
9.5 US qt (9.0 l)
MB Automatic Transmission Fluid
Transfer case
0.53 US qt (0.5 l)
MB Automatic Transmission Fluid
Rear axle
1.2 US qt (1.1 l)
Hypoid gear oil
Front axle
1.2 US qt (1.1 l)
Hypoid gear oil
Power steering
approx. 1.3 US qt (1.2 l)
MB Power Steering Fluid
Front wheel hubs
approx. 1.5 oz (43 g) each
High temperature roller bearing grease
Brake system
-
MB Brake Fluid (DOT 4+)

522 Technical dataFuels, coolants, lubricants, etc.
Model
Capacity
Fuels, coolants, lubricants, etc.
Cooling system
R350
R500
10 US qt (9.5 l)
11.1 US qt (10.5 l)
MB Anticorrosion / Antifreeze
Fuel Tank
including a reserve of
21.1 US gal (80.0 l)
approx. 3.4 US gal (13.0 l)
Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg.of96RON/86MON)
Air conditioning system
R-134a refrigerant and special PAG lubricant oil
(never R-12)
Windshield washer and
headlamp cleaning
system*
8.2 US qt (7.8 l)
MB Windshield Washer Concentrate
1
1Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing or MB Windshield Washer Concentrate “S” and commercially available
premixed windshield washer solvent / antifreeze for temperatures below freezing. Follow suggested mixing ratios (page 528).

526 Technical dataFuels, coolants, lubricants, etc.The coolant solution must be used year
round to provide the necessary corrosion
protection and increase boil-over protec-
tion. Refer to Maintenance Booklet for
replacement interval.
To provide important corrosion protection,
the solution must be at least 45% anticor-
rosion/antifreeze (equivalent to freeze
protection to approx. - 22°F [-30°C]). If
you use a solution that is more than 55%
anticorrosion/antifreeze (freeze protec-
tion to approx. - 49°F [-45°C]), the engine
temperature will increase due to the lower
heat transfer capability of the solution.
Therefore, do not use more than this
amount of anticorrosion/antifreeze.If the coolant level is low, water and
MB 325.0 anticorrosion/antifreeze should
be used to bring it up to the proper level
(have cooling system checked for signs of
leakage). Please make sure the mixture is
in accordance with label instructions.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water. If you
are not sure about the water quality, con-
sult an authorized Mercedes-Benz Light
Truck Center.

528 Technical dataFuels, coolants, lubricants, etc.Windshield washer and headlamp cleaning* system
Both the windshield washer and headlamp
cleaning* system are supplied from the
windshield washer fluid reservoir.
The windshield and headlamp washer fluid
reservoir has a capacity of approx.
8.2 US qt (7.8 l).
Refill the reservoir with MB Windshield
Washer Concentrate and water (or con-
centrate and commercially available
premixed windshield washer
solvent/antifreeze, depending on am-
bient temperatures).Windshield and headlamp washer fluid
mixing ratio
For temperatures above freezing point, use
MB Windshield Washer Concentrate
“MB SummerFit” and water:


1 part “MB SummerFit” to 100 parts
water
(1.34 fl oz [40 ml] “MB SummerFit” to
1gal [4.0l] water)
For temperatures below freezing point, use
MB Windshield Washer Concentrate
“MB SummerFit” and commercially avail-
able premixed windshield washer
solvent / antifreeze:


1 part “MB SummerFit” to 100 parts
solvent
(1.34 fl oz [40 ml] “MB SummerFit” to
1 gal [4.0 l] solvent)
Warning!
G
Washer solvent/antifreeze is highly flamma-
ble. Do not spill washer solvent/antifreeze
on hot engine parts, because it may ignite
and burn. You could be seriously burned.

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

542 IndexEngine malfunction indicator lamp 407,
433
Engine malfunction indicator lamp (Cana-
da only) 27
Engine malfunction indicator lamp (USA
only) 27
Engine number 530
Engine oil 346, 523
Adding 349
Additives 523
Checking level 346
Consumption 346
Display messages 437–438
Messages in display 347, 437–438
Viscosity 530
ESP
®
25, 99, 530
Switching off 101
Switching on 102
Warning lamp 409
ETD 530
Safety guidelines 74
ETD (Emergency tensioning device) 80
Extending cargo compartment 283
Exterior mirrors
Folding 211Exterior rear view mirrors
Adjusting 48
Power folding* 211
Synchronizing 211
F
Fastening the seat belts 50
First aid kit 454
Flat tire 478
Lowering the vehicle 485
Preparing the vehicle 479
Spare wheel 457
Flexible Service System PLUS (FSS
PLUS) 530
Floormats* 328
Fluid level
Automatic transmission 350
Fog lamp, rear
Switching on 151
Fog lamps, front*
Messages in display 442
Replacing bulbs 466
Switching on 151
Folding
Exterior mirrors 2114-ETS 102
Front air bags 75
Front defroster 223, 238
Front fog lamps
Indicator lamp 147
Front lamps
Messages in display 442
Replacing bulbs 466, 468
Front seats
Head restraints 44
Front towing eye 501
Front wiper blades
Installing 476, 477
Removing 475
FSS PLUS (Flexible Service System
PLUS) 530
Fuel 343
Additives 525
Fuel reserve warning lamp 409
Gasoline additives 525
Premium unleaded gasoline 343,
524
Requirements 524
Fuel additives 525
Fuel cap
Message in display 439

547 Index
Mirrors
Adjusting 47
Automatic antiglare for rear view
mirror 209
Exterior rear view mirror 48
Storing exterior rear view mirror park-
ing position 146
Modular Control System 531
MON 343
MON (Motor Octane Number) 532
Mph or km/h in speedometer 178
Multicontour seat* 136
Multifunction display 532
Selecting language 178
Standard display 165
Multifunction display messages
ABS 418
Batteries 430
Brake fluid 432
Brake pads 430
Coolant 436
Coolant level 433
Doors 436
EBP (Electronic Brake
Proportioning) 431
Engine oil 437, 438Fuel cap 439
Hood 439
Lamps 444
Lamps, exterior 442
Oil 437–438
Parking brake 431
SmartKey 441
SmartKey with KEYLESS-GO* 440
Tele Aid* 450, 451
Telephone* 451
Washer fluid 451
Multifunction steering wheel 28, 532
N
Navigation system 172
Night security illumination 150
Normal occupant weight 387, 532
O
Occupant Classification System 85
Self-test 90
Occupant distribution 387Occupant safety 70
Children and air bags 72
Children in the vehicle 82
Fastening the seat belt 50
Infant and child restraint systems 82
LATCH child seat mounts 92
Seat belts 50, 74
Oil
Adding 349
Consumption 346
Dipstick 346
Filler neck 349
Viscosity 530
One-touch gearshifting
Canceling gear range limit 207
Opening
Doors from the inside 121
Fuel filler flap 342
Fuel filler flap manually 461
Glove box 294
Hood 345