2005 MERCEDES-BENZ G55AMG brake fluid

303 Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
#
UNDERVOLTAGE
SWITCH CONSUMERS OFF!
The battery has insufficient voltage.

Have the battery checked at a ser-
vice station.
2
BRAKE WEAR
VISIT WORKSHOP!
The brake pads have reached their
wear limit.

Have the brake pads replaced as
soon as possible.
3
BRAKE FLUID
VISIT WORKSHOP!
There is insufficient brake fluid in the
reservoir.

Risk of accident! Stop the vehicle
and notify an authorized
Mercedes-Benz Light Truck Center.
Do not add brake fluid! This will not
solve the problem.
Warning!
G
Driving with the last message displayed can
result in an accident. Have your brake sys-
tem checked immediately.
Do not add brake fluid before checking the
brake system. Overfilling the brake fluid res-
ervoir can result in spilling brake fluid on hot
engine parts and the brake fluid catching
fire. You can be seriously burned.
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks.
!Brake pad thickness must be visually
checked by a qualified technician at the
intervals specified in the Maintenance
Booklet.

374 Technical dataFuels, coolants, lubricants, etc.Capacities
Vehicle components and their respective
lubricants must match.Therefore use only products tested and ap-
proved by Mercedes-Benz.Please refer to the Factory Approved Ser-
vice Products pamphlet, or inquire at an
Mercedes-Benz Light Truck Center.
Model
Capacity
Fuels, coolants, lubricants, etc.
Engine with oil filter
G 500
G55AMG
8.5 US qt (8.0 l)
9.0 US qt (8.5 l)
Approved engine oils
Automatic transmission
9.0 US qt (8.5 l)
MB Automatic Transmission Fluid
Transfer case
2.96 US qt (2.8 l)
MB part no. A 001 989 28 03 10
Differential lock mechanism
0.47 - 0.63 US qt
(0.45 - 0.6 l)
Brake fluid DOT 3+4, SAE J1703
Front axle
G 500
G55AMG
1.5 US qt (1.4 l)
1.5 US qt (1.4 l)
Hypoid gear oil SAE 85W-90
Hypoid gear oil Castrol SAF-XJ
Rear axle
G 500
G55AMG
1.9 US qt (1.8 l)
1.9 US qt (1.8 l)
Hypoid gear oil SAE 85W-90
Hypoid gear oil Castrol SAF-XJ
Power steering
approx. 1.06 US qt (1.0 l)
MB Power Steering Fluid, or
approved Dexron III ATF
Front wheel hubs
approx. 1.5 oz (43 g) each
High temperature roller bearing grease
Fuel tank
including a reserve of
G 500
G55AMG
25.4 US gal (96.0 l)
23.8 US gal (90.0 l)
3.4 US gal (13.0 l)
Premium unleaded gasoline:
Minimum Posted Octane 91
(average of 96 RON / 86 MON)

376 Technical dataFuels, coolants, lubricants, etc.Engine oil additives
Do not blend oil additives with engine oil.
They may damage the engine. 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 are used in the air condition-
ing system. Never use R-12 (CFC) or
mineral-based lubricating 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 replaced every two years, prefera-
bly in the spring. Only brake fluid approved
by Mercedes-Benz is recommended. Your
authorized Mercedes-Benz Light Truck
Center will provide you with additional in-
formation.
Premium unleaded gasoline
!To maintain the engine’s durability and
performance, premium unleaded gaso-
line must be used. If premium unleaded
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.

388 IndexAlarm system
Anti-theft 88
Anticorrosion/antifreeze 379
Antilock brake system (ABS) 381
Anti-theft alarm system
Arming 88
Canceling alarm 89
Disarming 89
Anti-theft systems 88
Anti-theft alarm system 88
Tow-away alarm 89
Aquaplaning see Hydroplaning
Armrest
Storage compartment below 191
Storage compartment in front of 191
Ashtrays 194
Aspect ratio 271
At the gas station 235
ATF (automatic transmission fluid) 244
AUDIO menu 128
Selecting radio station 129
Auto-dimming for rear view mirror 160
Automatic central locking
Activating/deactivating (control
system) 141Automatic climate control
Deactivating 170
Automatic headlamp mode 111
Automatic locking when driving 98
Automatic transmission 148
Accelerator position 153
Emergency operation (Limp Home
Mode) 153
Fluid level 244
Gear ranges 150
Gear selector lever position 148, 151
Gear shifting malfunctions 153
Kickdown 153
Manual shifting 149
One-touch gearshifting 149
Transmission fluid 244B
BabySmart
TM
Airbag deactivation system 74, 381
Compatible child seats 74, 381
Self-test 75
Backup lamps 334
Bulbs 334
Replacing bulbs 342
Bar 271
BAS 80, 82, 381
Messages in display 298
Batteries
SmartKey (replacing) 331
Batteries, SmartKey
Check lamp 95
Checking 95
Battery box
Fuse box in 360
Battery discharged
Jump starting 354
Battery, vehicle 247, 351
Charging 351
Disconnecting 352
Messages in display 302, 303
Reconnecting 353

389 Index
Bead 271
Block heater (Canada only) 276
Blocking rear door window operation 78
B-pillar 366
Brake assist system (BAS) 381
Brake fluid 237, 376
Brake lamp bulbs, left and right 334
Brake lamp, high mounted 334
Brake pads
Message in display 303
Brakes 217
Warning lamp 290, 291
Break-in period 214
Brush guard* 329
Lowering 330
Raising and securing 330
Bulbs, replacing
Additional turn signals 334
Backup lamps 334, 342
Brake lamps 334, 341
Front fog lamps 334, 338
Front lamps 333, 334
Front turn signal lamps 334, 339
High and low beam 336High beam lamps 334
High mounted brake lamp 334
License plate lamps 334, 342
Low beam lamps 334
Parking lamps 334, 336
Rear fog lamp 334, 342
Rear turn signal lamps 334
Side marker lamps 334, 340
Standing lamps 334, 336
Tail lamp unit 334, 341C
CAC (Customer Assistance Center) 381
Calling up
Maintenance service indicator 278
Range (distance to empty) 145
CAN system 381
Capacities
Fuels, coolants, lubricants, etc. 374
Cargo area see Cargo compartment
Cargo compartment
Tailgate 97, 98
Tie-down rings 189
Cargo compartment cover 182
Installing 183
Removing 183
Cargo tie-down rings 189
Catalytic converter 232
CD changer 322
CD player
Operating 130
Center console 28
AIRBAG OFF indicator lamp 295
Lower part 29
Upper part 28

396 IndexH
Hard plastic trim items
Cleaning 284
Hazard warning flasher 115
Head restraints 101
Power seats 39
Synchronizing 102
Headlamp cleaning system 245
Headlamps
Automatic control 111
Cleaning 282
Cleaning system 162, 245
Switching off 58
Switching on 51
Washer fluid 380
Washer system 380
Headlight switch-off delay see Delayed
switch-off, exterior lamps
Headliner
Cleaning 284
Heated seats 104
Heated steering wheel 211Height adjustment
Head restraints 39
Seat belts 48
Steering wheel 40
High beam flasher 52, 114
High beam headlamps
Messages in display 313
Replacing bulbs 334, 336
Switching on 114
High mounted brake lamp 334
Hood 238
Closing 239
Messages in display 311
Opening 238
Hydroplaning 220I
Identification labels 366
Certification label 366
Vehicle identification number
(VIN) 366
Ignition
Switching on 49
Ignition (Position in starter switch) 35
Immobilizer 88
Activating 88
Deactivating 88
Infant and child restraint systems 72
Installing 76
LATCH child seat anchors 77
Information
Button for Tele Aid 202
Inside rear view mirror
Auto-dimming 160
Installing
Cargo compartment cover 183
Infant and child restraint systems 76
Wiper blades 345
Instructions
Loading 187

400 IndexMessages in the multifunction display
Symbol messages 302
Text messages 298
Middle tunnel
Fuse box in 362
Miles/kilometers in speedometer
Setting 136
Mirrors
Activating exterior rear view mirror
parking position 161
Adjusting 41
Auto-dimming for rear view
mirror 160
Exterior rear view mirror 41
Exterior rear view mirror parking
positions 143
Interior rear view mirror 41
Storing exterior rear view mirror
parking position 109
MON 236
MON (Motor Octane Number) 384
Monitoring reach
Rear Parking Assist* 180
Mph or km/h in speedometer
setting 136Multicontour seat* 104
Multifunction display 123, 384
Selecting language 136
Standard display 127
Multifunction display messages
ABS 298
BAS 298
Battery 302, 303
Brake fluid 303
Brake pads 303
Check engine 292
Coolant 305, 306, 307
Cruise control 308
Display 320
Doors 308
Engine 292
Engine air filter 308
Engine oil 309
ESP 300
Fuel reserve tank 311
Hood 311
Key 311
Lamps 312, 314
Parking brake 304
Sunroof 319Tailgate 320
Tele Aid 319
Telephone* 319
Washer fluid 320
Multifunction steering wheel 26, 124
Buttons 124

408 IndexSupplemental Restraint System
(SRS) 385
Switching
Transfer case 154
Switching off
Automatic central locking (control
system) 141
Delayed (exterior lamps) 139
Differential locks 159
Engine 58
ESP 86
Headlamps 58
Heated steering wheel 211
Switching on
Automatic central locking (control
system) 141
Differential locks 158
ESP 87
Front axle differential lock 159
Headlamps 51
Heated steering wheel 211
Rear axle differential lock 159
Transfer case differential lock 158
Windshield wipers 53Symbol messages
Multifunction display 302
Synchronizing
ESP 300
Head restraints 102
Seat adjustment 102T
Tachometer 25, 121
Displaying gear range 150
Overspeed range 121
Tail lamps 341
Cleaning 282
Replacing bulbs 334
Tailgate
Closing 98
Message in display 320
Opening 97, 98
Tailgate lock 322
Unlocking in an emergency 325
Tar stains 281
Technical data
Air conditioning refrigerant 376
Brake fluid 376
Coolant 374
Coolants 378
Electrical system 372
Engine 368
Engine oil 375
Engine oil additives 376
Fuel requirements 377