2007 MERCEDES-BENZ GL320CDI brake light

526 Practical hints
Flat tire
Removing the wheel
1Alignment bolt
Unscrew upper-most wheel bolt and
remove it.
Replace this wheel bolt with alignment
bolt1 supplied with the tool kit
(
page 495).
Remove the remaining bolts.
Remove the wheel.Mounting the new wheel
1Wheel bolt for 19" and 20" light alloy
wheels
2Wheel bolt for Minispare wheel (locat-
ed in vehicle tool kit (
page 495))
Clean contact surfaces of wheel and
wheel hub.
Warning!G
The jack is intended only for lifting the
vehicle briefly for wheel changes. It is not
suited for performing maintenance work
under the vehicle.

Never start the engine when the vehicle
is raised.

Never lie down under the raised vehicle.
!Do not place wheel bolts in sand or dirt. This
could result in damage to the bolts and wheel
hub threads.
!Wheel bolts2 must be used when mount-
ing the Minispare wheel. The use of any wheel
bolts other than wheel bolts2 for the Minispare
wheel will damage the vehicle’s brakes.


532 Practical hints
Battery
Disconnecting, removing, reinstalling
and reconnecting the battery
Step 1 (Disconnecting)
Set the automatic transmission to
positionP (
page 194).
Firmly depress the parking brake
(
page 68).
Turn off the engine (page 69).
Leave the ignition switched on
(
page 42).
!Never loosen or detach battery terminal
clamps while the engine is running or the
SmartKey is in the starter switch. Otherwise the
alternator and other electronic components
could be severely damaged.
Have the battery checked regularly by an
authorized Mercedes-Benz Light Truck Center.
Contact your authorized Mercedes-Benz Light
Truck Center for further information.
Warning!G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.
Warning!G
Disconnecting, removing, reinstalling and
reconnecting the battery is a complicated
and technically demanding procedure that
a l s o r e q u i r e s s a f e t y p r e c a u t i o n s t o a v o i d t h e
risk of injury. We strongly recommend that it
be performed by a qualified technician or an
authorized Mercedes-Benz Light Truck
Center only. Please read the instructions
fully before beginning operation and only
undertake it if you feel fully capable of
performing all of the tasks involved as de-
scribed in these instructions. Observe all
safety instructions and precautions when
handling automotive batteries
(
page 530). Performing the tasks involved
incorrectly can cause damage to the vehicle
and impair the operating safety of the
vehicle, and/or cause severe injury to you
or others.
iWith a disconnected battery you will no
longer be able to turn the SmartKey in the starter
switch and pressing the KEYLESS-GO*
start/stop button will have no effect.
iIf your battery is discharged, the vehicle
must be jump started (
page 538) using the
jump start contacts in the engine compartment,
or an accessory battery charge unit* approved
by Mercedes-Benz must be connected using the
jump start contacts in the engine compartment
(see separate instructions for the accessory bat-
tery charge unit*) before any of the following
steps can be performed. If the battery cannot be
jumped or charged, please contact an
authorized Mercedes-Benz Light Truck Center.

539 Practical hints
Jump starting
The jump-start contacts are located in the
engine compartment.
1Negative (-) terminal
2Positive (+) terminal
3Positive terminal cover
Make sure the two vehicles do not
touch.
Turn off all electrical consumers.
Apply parking brake (page 68).
Set automatic transmission to
positionP (
page 194).
Open the hood (page 379).
Remove cover from negative
terminal1.
Flip up cover3 of positive terminal2
in direction of arrow.
1Negative terminal of discharged
battery
2Positive terminal of discharged battery
4Positive terminal of charged battery
5Negative terminal of charged battery
Connect positive terminal2 and4
with the jumper cable. Clamp cable to
charged battery4 first.
Start engine of the vehicle with the
charged battery and run at idle speed.
Connect negative terminals1 and5
of the batteries with the second jumper
cable. Clamp the cable to negative
terminal5 of the charged battery
first.
Start the engine of the disabled vehi-
cle.
You can now turn on the electrical consum-
ers. Do not switch on the headlamps under
any circumstances.
Remove the jumper cables first from
negative terminals1 and5 and then
from positive terminals2 and4.
You can now switch on the headlamps.
Have the battery checked at the near-
est authorized Mercedes-Benz Light
Truck Center.
Warning!G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries
(
page 530).
!Never invert the terminal connections!

544 Practical hints
Fuses
The electrical fuses in your vehicle serve to
switch off malfunctioning power circuits.
If a fuse is blown, the components and sys-
tems secured by that fuse will stop operat-
ing.If a newly inserted fuse blows again, have
the cause determined and rectified by an
authorized Mercedes-Benz Light Truck
Center.
The following aids are available to help you
replace fuses. They are included with the
vehicle tool kit (
page 495):

Fuse chart
The fuse chart explains the fuse alloca-
tion and fuse amperages.

Spare fuses

Fuse extractor
The electrical fuses are located in different
fuse boxes:

Fuse box in engine compartment
(
page 545)

Fuse box in cargo compartment
(
page 545)

Fuse box in passenger compartment
(
page 546)Before replacing fuses:
Apply parking brake (page 68).
Make sure the automatic transmission
is set toP (
page 194).
The gear position indicator in the multi-
function display should be on
P.
Turn off all electrical consumers.
Turn off the engine (page 41).
Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO*:
Open the driver’s door (this puts
the starter switch in position0,
same as with the SmartKey re-
moved from the starter switch). The
driver’s door then can be closed
again.
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 ap-
proved 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 by an au-
thorized Mercedes-Benz Light Truck Center.
iA blown fuse must be replaced by an appro-
priate spare fuse (recognizable by its color or the
fuse rating given on the fuse) of the amperage
recommended in the fuse chart. Any
Mercedes-Benz Light Truck Center will be glad to
advise you on this subject.

562 Technical data
Fuels, coolants, lubricants
Engine oils
Engine oils are specifically tested for their
suitability in our engines and durability for
our service intervals. Therefore, only use
approved engine oils and oil filters
required for vehicles with Maintenance
System. For a listing of approved engine
oils and oil filters, refer to the Factory
Approved Service Products pamphlet
(USA only), or contact an authorized
Mercedes-Benz Light Truck Center.Engine oil additives
Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil are used in the air
conditioning system.
Brake fluid
Only brake fluid approved by
Mercedes-Benz is recommended. Your
authorized Mercedes-Benz Light Truck
Center will provide you with additional
information.
!Using engine oils and oil filters of
specification other than those expressly
required for the Maintenance System, or chang-
ing of oil and oil filter at change intervals longer
than those called for by the Maintenance System
will result in engine or emission control system
damage not covered by the Mercedes-Benz
Limited Warranty.
Please follow Maintenance System recommen-
dations for scheduled oil changes. Failure to do
so will result in engine or emission control
system damage not covered by the
Mercedes-Benz Limited Warranty.
!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.
!Never use R-12 (CFC) or mineral-based
lubricating oil. Otherwise damage to the system
will occur.
Warning!G
During vehicle operation, the boiling point of
the brake fluid is continuously reduced
through the absorption of moisture from the
atmosphere. Under extremely strenuous
operating conditions, this moisture content
can lead to the formation of bubbles in the
system, thus reducing the system’s
efficiency.
Therefore, the brake fluid must be replaced
regularly. Refer to your vehicle’s
Maintenance Booklet for replacement inter-
val.

578 Index
Headlamps
Automatic headlamp mode 146
Bi-Xenon* 481, 512
Cleaning lenses 429
Cleaning system* 210, 384
Halogen 511
High beam see High beam flasher
High beam see High beam headlamps
Light sensor, Messages in the
multifunction display 483
Low beam see Low beam headlamps
Manual headlamp mode 146
Messages in the
multifunction display 481, 482,
483, 484, 485, 486
Replacing bulbs 508, 509
Switch 62, 145
Heated seats see Seat heating*
Heated steering wheel* 328
Height adjustment
Vehicle level control
(Vehicles with Air suspension
package) 283
Vehicle level control
(Vehicles with enhanced Off-road
Package*) 285High beam flasher 63, 149
High beam headlamps
Indicator lamp 29
Messages in the
multifunction display 482
Replacing bulbs 509, 511, 512
Switching on 63, 149
High mounted brake lamp 509
Hill start assist system 199
Hinged quarter windows* see
Power windows
Hood 379
Messages in the
multifunction display 478
Opening 379
Hooks
Loading 306
Horn 25
HVAC see Climate control or
automatic climate control (3-zone)*
Hydroplaning 354I
Identification labels see Labels
Ignition 42, 44, 59
Immobilizer 111
Indicator lamps see Lamps, Indicator and
warning
Infant and child restraint systems see
Children in the vehicle
Inflation pressure see Tires,
Inflation pressures
Information button see Tele Aid
Infrared reflecting windshield* 345
Inside door handle 122
Instrument cluster 26, 28, 155
Illumination brightness 155
Lamps 436
Messages in display see Multifunction
display messages
Multifunction display 157
Outside temperature indicator 156
Selecting language 174
Instrument lighting see Instrument cluster,
Illumination brightness
Instrument panel see Instrument cluster

580 Index
Kickdown 198
Kilopascal 416
L
Labels 550
Certification 550
Emission control information 551
Engine number 551
Paintwork code 550
Vacuum line routing diagram 551
Vehicle Identification Number
(VIN) 550
Lamp sensor see Light sensor
Lamps, exterior 509
Front 509
Light sensor, Messages in the
multifunction display 483
Messages in display 481
Messages in the multifunction
display 481, 483, 485
Rear 509
Switch 145Lamps, indicator and warning
ABS 27, 436
Adaptive Damping System
(ADS)* 281
Alarm system 112
Battery (SmartKey with
KEYLESS-GO*) 121
Battery (SmartKey) 116
Brakes 27, 437, 438
Center console 31, 32, 448
CHECK ENGINE 29, 439, 440
Differential locks* 207
Distance warning lamp* 265
Downhill Speed Regulation 276
Engine diagnostics 29, 439, 440
ESP® 27, 441, 442
Fog lamps, Front/rear 145
Front passenger front air bag off 31,
32, 80, 87, 450
Fuel reserve 29, 442
High beam headlamps 29
Instrument cluster 26, 28, 436, 437,
438, 439, 440, 441, 442, 443, 444,
445, 446
Off-road driving program 280
Parktronic* 292Preglow indicator, Diesel engine 29
Seat belt telltale 29, 91, 443
Seat belts 444
Seat heating* 140
Seat ventilation* 142
SRS 29, 74, 91, 445
Turn signals 27
Vehicle level control 283, 285
Language, Setting 174
LATCH-type child seat anchors see
Children in the vehicle
Layout of poly-V-belt drive (GL 450) 552
Layout of poly-V-belt drive
(GL 320 CDI) 552
Leather upholstery*, Cleaning and
care of 434
Lever for cruise control 257
License plate lamps 518
Messages in the
multifunction display 483
Replacing bulbs 509, 518
Light alloy wheels, Cleaning 432
Light sensor
Messages in the
multifunction display 483
Lighter see Cigarette lighter*

583 Index
Off-road - 4-ETS 110
Off-road - ABS 104
Off-road - ESP® 108
Off-road driving
Checklist 359, 365
Crossing obstacles 363
Driving instructions for off-road
driving 357
Driving through water 362
Returning 365
Rules 358
Special driving features 358
Steep terrain 360
Off-road driving program (Vehicles without
enhanced off-road package*) 279
Oil level see Engine oil, Checking level
One-touch gearshifting 202
Operating safety 17
Operator’s Manual 10
Ornamental moldings, Cleaning 429
Outside temperature see Displays
Overdue maintenance service term 423
Overhead control panel 34
Oxidation catalyst (diesel engine) 373P
Paintwork code 550
Paintwork, Cleaning 426
Panic alarm 102
Panorama roof, Rear 214
Parcel net
Front passenger footwell 320
Front seat backrests 320
Parking 68, 352
On hills 68
Over things that burn, Potential
consequences 68, 373
Parking brake 60, 68
Lamps, Indicator and warning 437
Messages in the
multifunction display 471
Releasing 61
Parking lamps 509
Messages in the
multifunction display 482
Replacing bulbs 513
Parking position*
Exterior rear view mirrors 185, 211Parktronic* 31, 32, 290
Cleaning system sensors 430
Minimum distance 292
Range 291
Switching on/off 293
System malfunction 294
System sensors 291
System sensors, Cleaning 430
Warning indicators 25, 292
Parts service 548
PASS AIR BAG OFF indicator lamp see
Front passenger front air bag off
indicator lamp
Passenger compartment 371
Fuse box 546
Interior lighting 151
Interior rear view mirror 34
Parcel net in front passenger
footwell 320
Passenger safety see Occupant safety
Pedals 349
Phone see Telephone*