2007 MERCEDES-BENZ G55AMG ECU

386 Practical hints
Replacing bulbs
Left tail lamp unit shown, right tail lamp
unit laterally reversed
3Turn signal lamp bulb
4Brake, tail, parking and standing lamp
bulb
5Tail, parking and standing lamp bulb
Press gently onto respective
bulb3,4, or5 and turn counter-
clockwise out of its bulb socket.
Press the new bulb gently into the bulb
socket and turn clockwise until it
engages.
Reinstall tail lamp lens2.
Install and tighten securing screws1.Rear fog lamp bulb/Backup lamp bulb
The following description applies to both,
the rear fog lamp and the backup lamp.
Rear fog lamp shown
1Securing screw
2Lamp lens
Loosen and remove securing
screws1.
Remove lamp lens2.3Bulb
Press gently onto bulb3 and turn
counterclockwise out of its bulb
socket.
Press the new bulb gently into the bulb
socket and turn clockwise until it
engages.
Reinstall lamp lens2.
Install and tighten securing screws1.
iDo not overtighten securing screws1.
Otherwise tail lamp lens2 could be damaged.
iDo not overtighten securing screws1.
Otherwise lamp lens2 could be damaged.


387 Practical hints
Replacing bulbs
License plate lamp bulb
1Securing screw
2License plate lamp lens (with bulb
socket)
Loosen and remove securing
screws1.
Remove license plate lamp lens2.3Tubular bulb
Replace tubular bulb3.
Reinstall license plate lamp lens2.
Install and tighten securing screws1.High mounted brake lamp
The high mounted brake lamp has LEDs.
If a malfunction occurs or LEDs fail to
function, the brake lamp unit must be
replaced. Have the brake lamp unit
replaced at an authorized Mercedes-Benz
Light Truck Center.
iDo not overtighten securing screws1.
Otherwise license plate lamp lens2 could be
damaged.

395 Practical hints
Flat tire
1-5 Wheel bolts
Tighten the five wheel bolts evenly,
following the diagonal sequence illus-
trated (1 to 5), until all wheel bolts
are tight. Observe a tightening torque
of 96 lb-ft (130 Nm).
Disassemble the pump handle
(
page 392).
Put the pump handle and the wheel
wrench back into the vehicle tool kit.
Store the vehicle tool kit in the
designated storage compartment
(
page 366).
Press the jack piston in again and close
the lowering screw (
page 392).
Store the jack in the designated
storage compartment (
page 367).
After changing the wheel, secure the
damaged wheel on the spare wheel
carrier (
page 369). Make sure the
wheel cannot come loose.
Check the tire inflation pressure and
correct it if necessary.
Follow recommended cold tire inflation
pressures listed on the Tire and
Loading Information placard on the
driver’s door B-pillar (
page 280).
Warning!G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
96 lb-ft (130 Nm).

398 Practical hints
Battery
Disconnecting, removing, reinstalling
and reconnecting the battery
Disconnecting, removing, reinstalling and
reconnecting the battery is a complicated
and technically demanding procedure that
also requires safety precautions to avoid
the risk of injury. We strongly recommend
that it should be performed by a qualified
technician only. If it is necessary to work
on the battery, contact a local authorized
Mercedes-Benz Light Truck Center or call
our Customer Assistance Center at
1-800-FOR-MERCedes (1-800-367-6372).
Charging the battery
If the battery is discharged, the battery can
be charged using the jump-start terminals
located in the engine compartment
(
page 400).
Charge the battery in accordance with
the instructions of the battery charger
manufacturer.
!Never invert the terminal connections!
!The battery, its filler caps and the vent tube
must always be securely installed when the
vehicle is in operation.
Warning!G
Never charge a battery while still installed in
the vehicle unless the accessory battery
charge unit* approved by Mercedes-Benz is
being used. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.
An accessory battery charge unit* specially
adapted for Mercedes-Benz vehicles and
tested and approved by Mercedes-Benz is
available, permitting the charging of the
battery in its installed position. Contact an
authorized Mercedes-Benz Light Truck
Center for information and availability.
Charge battery in accordance with the sepa-
rate instructions for the accessory battery
charger*.
iWith a discharged battery

you will no longer be able to turn the
SmartKey in the starter switch

the gear selector lever will remain locked in
park positionP

405 Practical hints
Fuses
Fuses
The electrical fuses in your vehicle serve to
switch off malfunctioning power circuits.
If a fuse is blown, the components and
systems secured by that fuse will stop
operating.If a newly inserted fuse blows again, have
the cause determined and rectified at an
authorized Mercedes-Benz Light Truck
Center.
The following aids are available to help you
replace fuses.

Fuse chart
The fuse chart explains the fuse
allocation and fuse amperages.
The fuse chart is located in the main
fuse box in the passenger compart-
ment (
page 406).

Spare fuses
The spare fuses are located in the main
fuse box in the passenger compart-
ment (
page 406).

Fuse extractor
The fuse extractor is located in the
vehicle tool kit in the rear footwell
(
page 366).The electrical fuses are located in different
fuse boxes:

in the passenger compartment on the
driver’s side (
page 406)

in the front passenger footwell
(
page 406)

in the middle tunnel (page 407)

in the battery box (page 408)
Before replacing fuses:
Apply parking brake (page 62).
Make sure the gear selector lever is set
to park positionP (
page 162).
Turn off all electrical consumers.
Turn off the engine (page 64).
Remove the SmartKey from the starter
switch.
Warning!G
Only use fuses approved by Mercedes-Benz
with the specified amperage for the system
in question and do not attempt to repair or
bridge a blown fuse. Using other than
approved fuses or using repaired or bridged
fuses may cause an overload leading to a
fire, and/or cause damage to electrical
components and/or systems. Have the
cause determined and remedied at an
authorized Mercedes-Benz Light Truck
Center.
iA blown fuse must be replaced by an
appropriate spare fuse (recognizable by its color
or the fuse rating given on the fuse) of the
amperage recommended in the fuse chart. Any
Mercedes-Light Truck Center will be glad to
advise you on this subject.

433 Index
Batteries
SmartKey (replacing) 376
Batteries, SmartKey
Check lamp 103
Checking 103
Battery box
Fuse box in 408
Battery discharged
Jump starting 399
Battery, vehicle 396
Charging 398
Disconnecting 398
Messages in display 344–345
Reconnecting 398
Reinstalling 398
Removing 398
Bead 304
Block heater (Canada only) 310
Blocking rear door window operation 86
B-pillar 412
Brake fluid 266, 425
Message in display 346
Brake lamp bulbs, left and right 378
Brake lamp, high mounted 378
Brake lamps
Messages in display 354Brake pads
Message in display 347
Brakes 246
Warning lamp 326–327
Break-in period 244
Brush guard 375
Lowering 375
Raising and securing 375
Bulbs, replacing
Additional turn signals 378
Backup lamps 378, 386
Brake lamps 378, 386
Front fog lamps 378, 382
Front lamps 378
Front turn signal lamps 378, 383
High beam lamps 378
High mounted brake lamp 378
License plate lamps 378, 387
Locator lighting lamps 378
Low beam lamps 378
Parking lamps 378, 380
Rear fog lamp 378, 386Rear lamps 378
Rear turn signal lamps 378
Side marker lamps 378, 384
Standing lamps 378, 380
Tail lamp assemblies 378
Tail lamp unit 385
C
Call priority, Tele Aid 235
Calling up
Maintenance service indicator
display 313
Range (distance to empty) 158
Capacities
Fuels, coolants, lubricants, etc. 422
Cargo area see Cargo compartment
Cargo compartment
Expanding 206
Tailgate 105
Tie-down rings 209
Cargo compartment cover blind 214
Installing 214
Removing 214
Rolling out 214
Rolling up 214
Cargo compartment lamps 127

441 Index
Lamps in instrument cluster 324
Lamps, exterior
Front 378
Messages in display 354–359
Rear 378
Replacing bulbs for front 380
Replacing bulbs for rear 385
Lamps, indicator and warning
ABS 324–325, 327
Battery (SmartKey) 102
Brakes 326–327
check engine 328–329
Engine diagnostics 328–329
ESP
®330–331
Fuel reserve 331
Instrument cluster 324–334
SRS 69, 334
Turn signals 27
Language
Setting 149
LATCH child seat anchors 83
Layout of poly-V-belt drive 414
Leather upholstery
Cleaning 322License plate lamps
Messages in display 356
Replacing bulbs 378, 387
Lifting
Vehicle 391
Light alloy wheels
Cleaning 320
Technical data 417, 418
Light sensor
Message in display 354
Lighter see Cigarette lighter
Lighting 117
Automatic headlamp mode 118
Combination switch 122
Daytime running lamp mode 119
Exterior lamp switch 117
Front fog lamps 121
High beam flasher 122
High beams 122
Instrument cluster illumination 130
Interior, front 125
Interior, rear 126
Locator lighting 120
Low beams 117
Manual headlamp mode 118
Night security illumination 120Parking lamps 117
Rear fog lamp 121
Settings (control system) 151
Limiting gear range 168
Limp Home Mode 169
Loading 206
Cargo compartment cover blind 214
Cargo tie-down rings 209
Instructions 208
Partition net* 210
Roof rack 206
Loading terminology 304
Loading the vehicle 280
Locator lighting 120
Setting 152
Locator lighting lamps
Replacing bulbs 378
Locking 62, 100
Fuel filler flap 264
Global, SmartKey 102
Vehicle in an emergency 371
Loss of keys 103

443 Index
Mirrors
Activating exterior rear view mirror
parking position 178
Adjusting 46
Auto-dimming for rear view
mirror 177
Exterior rear view mirrors 46
Interior rear view mirror 46
Storing exterior rear view mirror
parking position 116
Mobile phone see Telephone*
MON 265
Monitoring reach
Rear Parking Assist 201
Mph or km/h in speedometer
setting 149
Multicontour seat* 109
Multifunction display 133
Selecting language 149
Multifunction display messages
ABS 340
Advanced TPMS 342–343, 361–362
Backup lamp 357
Battery 344–345
Brake fluid 346
Brake lamps 354Brake pads 347
Coolant 347–350
Cruise control 350
Doors 350
Electronic systems 365
Engine oil 351–352
ESP
®341
Front fog lamps 355
Fuel 365
Fuel filler cap 353
Fuel reserve tank 353
High beam headlamps 355
High mounted brake lamp 354
Hood 353
Key 353
Lamps, exterior 354–359
License plate lamps 356
Light sensor 354
Low beam headlamps 356
Parking brake 347
Parking lamps 356
Rear fog lamp 357
Side marker lamps 355
SRS 360
Tail lamps 357
Tailgate 364Tele Aid 364
Telephone* 364
Tires 342–343, 361–362
Transfer case 363
Turn signal lamps 358–359
Washer fluid 365
Multifunction steering wheel 28, 134
Buttons 134
N
Navigation system
Operating 144
See separate COMAND operating
instructions
Night security illumination 120
Setting 153
Normal occupant weight 305