2007 MERCEDES-BENZ GL450 tire pressure reset

Contents
Emission control .......................... 373
Coolant temperature .................... 374
At the gas station .............................. 375
Refueling ...................................... 375
Check regularly and
before a long trip.......................... 377
Engine compartment ......................... 379
Hood ............................................ 379
Engine oil ..................................... 381
Transmission fluid level ................ 382
Coolant level ................................ 382
Windshield/rear window
washer system and
headlamp cleaning system* ........ 384
Tires and wheels ................................ 385
Important guidelines .................... 385
Tire care and maintenance........... 386
Direction of rotation ..................... 388
Loading the vehicle ...................... 388
Recommended tire
inflation pressure ......................... 394
Checking tire inflation pressure ... 396
Tire labeling.................................. 406
Load identification ....................... 410
DOT, Tire Identification
Number (TIN) ............................... 410Maximum tire load ........................ 412
Maximum tire inflation pressure ... 412
Uniform Tire Quality Grading
Standards (U.S. vehicles) .............. 413
Tire ply material ............................ 415
Tire and loading terminology......... 415
Rotating tires ................................ 418
Winter driving ..................................... 420
Winter tires ................................... 420
Snow chains.................................. 421
Maintenance....................................... 422
Maintenance service indicator
message ....................................... 422
Calling up the maintenance
service indicator display ............... 424
Resetting the maintenance
service indicator ........................... 424
Vehicle care........................................ 425
Cleaning and care of the vehicle ... 425
Practical hints.................................. 435
What to do if … ................................... 436
Lamps in instrument cluster ......... 436
Lamp in center console ................ 448
Vehicle status messages in
the multifunction display .............. 451
Where will I find ...? ............................ 495
First aid kit.................................... 495
Vehicle tool kit.............................. 495
Spare wheel .................................. 499
Unlocking/locking in an emergency .. 500
Unlocking the vehicle ................... 500
Locking the vehicle ....................... 501
Fuel filler flap ................................ 501
Opening/closing in an emergency ..... 503
Power tilt/sliding sunroof* ........... 503
Resetting activated head restraints.... 504
Replacing SmartKey batteries ............ 506
Replacing bulbs .................................. 508
Bulbs............................................. 508
Replacing bulbs for front lamps .... 511
Replacing bulbs for rear lamps ..... 515
Adjusting headlamp aim ............... 518

27 At a glance
Instrument cluster
ItemPage
1LLeft turn signal
indicator lamp
2To dim instrument cluster
illumination155
3Reset button for:

Resetting trip odometer

Resetting all settings
156
171
4To brighten instrument
cluster illumination155
5KRight turn signal
indicator lamp
6Clock
Setting the time
176
ItemPage
7Speedometer with:
-Antilock Brake
System (ABS)
indicator lamp436
’Variable speed limiter
indicator lamp1
lDistance warning
lamp2265,
445
1Lamp without function. It illuminates when the
ignition is on. It should go out when the engine is
running.
2Vehicles without Distronic*: Warning lamp without
function. It illuminates when the ignition is on.
It should go out when the engine is running.
ItemPage
;Brake warning lamp,
USA only437
3Brake warning lamp,
Canada only437
vElectronic Stability
Program (ESP®)
warning lamp
441
HCombination low tire
pressure/TPMS mal-
function telltale,
USA only
Low tire pressure
telltale, Canada only446
446

398 Operation
Tires and wheels
Reactivating the Run Flat Indicator
The tire inflation pressure monitor must be
reactivated in the following situations:

If you have changed the tire inflation
pressure

If you have replaced the wheels or tires

If you have installed new wheels or
tires
Using the Tire and Loading Information
placard on the driver’s door B-pillar or,
if available, the tire inflation pressure
label on the inside of the fuel filler flap,
make sure the tire inflation pressure of
all four tires is correct.
Switch on the ignition (page 42).
Make sure the standard display menu
appears in the multifunction display
(
page 157).
Press buttonk orj repeatedly
until the following message appears in
the multifunction display:
Press the reset button on the instru-
ment cluster (
page 155).
The following message will appear in
the multifunction display:
Restart
Run Flat Indicator?
Yes
Cancel
Warning!G
The Run Flat Indicator does not provide a
warning for wrongly selected tire inflation
pressures. Always adjust tire inflation pres-
sure according to the Tire and Loading
Information placard on the driver’s door
B-pillar (
page 389) or, if available, on the
tire inflation pressure label located on the
inside of the fuel filler flap (
page 375).
The Run Flat Indicator does not replace
regular checks of the tire inflation pressures
since a gradual pressure loss in more than
one tire cannot be detected by the Run Flat
Indicator.
The Run Flat Indicator is not able to issue a
warning due to a sudden dramatic loss of
tire inflation pressure (e.g. tire blowout
caused by a foreign object). In this case
bring the vehicle to a halt by carefully apply-
ing the brakes and avoiding abrupt steering
maneuvers.
Warning!G
The Run Flat Indicator can only warn you in
a reliable manner if you have set the correct
tire inflation pressures for each tire.
If an incorrect tire inflation pressure was set,
the system will monitor the pressure ac-
cording to the incorrect value.

402 Operation
Tires and wheels
Press the reset button (page 155).
The following message will appear in
the multifunction display:
Restart tire
pressure monitor?
Press the æbutton.
The following message will appear in
the multifunction display:
Tire pressure monitor
restarted
After driving a few minutes the system
verifies that the current tire inflation
pressures are within the system’s
specified range. Afterwards the current
tire inflation pressures are accepted as
reference pressures and then moni-
tored.
If you wish to cancel activation:
Press the çbutton.Checking tire pressure electronically
with the Advanced Tire Pressure Moni-
toring System (Advanced TPMS)*,
(Canada only)
The TPMS only functions on wheels that
are equipped with the proper electronic
sensors. It monitors the tire inflation pres-
sure, as selected by the driver, in all four
tires. A warning is issued to alert you to a
decrease in pressure in one or more of the
tires.
Tire pressure inquiries are made using the
multifunction display. The present inflation
pressures are displayed only after a few
minutes’ travel time.
Switch on the ignition (page 42).
Press thej or kbutton on the
multifunction steering wheel until the
current inflation pressures for each tire
appear in the multifunction display.
iThis device complies with RSS-210 of Indus-
try Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference
received, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
iPossible differences between the readings
of a tire pressure gauge of an air hose, e.g. gas
station equipment, and the vehicle’s control
system can occur. Usually the readings issued by
the control system are more precise.
iWhen the message Tire pressure
displayed after driving for a few
minutes
appears in the multifunction display,
the individual inflation pressure values are
matched with the tires. The individual values are
displayed after a few minutes driving.


405 Operation
Tires and wheels
Tire pressure
displayed after
driving for
a few minutes
Press the reset button (page 155).
The following message will appear in
the multifunction display:
Restart tire
pressure monitor?
Press the æbutton.
The following message will appear in
the multifunction display:
Tire pressure monitor
restarted
After a few minutes driving, the current
tire inflation pressure values are ac-
cepted as reference values and then
monitored.
If you wish to cancel activation:
Press the çbutton.Potential problems associated with
underinflated and overinflated tires
Underinflated tires
Underinflated tires can:

cause excessive and uneven tire wear

adversely affect fuel economy

lead to tire failure from being
overheated

adversely affect handling
characteristicsOverinflated tires
Overinflated tires can:

adversely affect handling
characteristics

cause uneven tire wear

be more prone to damage from road
hazards

adversely affect ride comfort

increase stopping distance
Warning!G
Follow recommended tire inflation
pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly,
adversely affect handling and fuel economy,
and are more likely to fail from being
overheated.
Warning!G
Follow recommended tire inflation
pressures.
Do not overinflate tires. Overinflated tires
can adversely affect handling and ride
comfort, wear unevenly, increase stopping
distance, and result in sudden deflation
(blowout) because they are more likely to
become punctured or damaged by road
debris, potholes etc.

572 Index
Children in the vehicle 93
Air bags 77, 93
Blocking rear door window
operation 100
Indicator lamp, Front passenger front
air bag 85, 87, 450
Infant and child restraint systems 88,
94
LATCH-type child seat anchors 97
Occupant Classification System*
(OCS) 81
Cigarette lighter* 324
Climate control 216
Air conditioning refrigerant 561
Air conditioning, Cooling 226, 227
Air distribution, Front 221
Air distribution, rear 229
Air recirculation mode 224
Air vents*, second-row seats 222
Air vents, Front 222
Air volume 222
Control panel*, Rear 228
Control panel, Front 218
Deactivating system 220
Defogging 224
Defrosting 223Rear window defroster 215
Residual engine heat (REST) 227
Clock 27, 176
Setting time 176
Cloth upholstery, Cleaning and
care of 434
Cockpit 24
Cockpit Management and Data System
see COMAND System
Cold tire inflation pressure 416
Collapsible wheel chock 498
COMAND System see separate operating
instructions
Combination switch 63, 65, 149
Compass 345
Adjustment 181
Calibration 182
Calling up the compass 345
Control and operation of radio
transmitters 372
Control system 157
Multifunction display 157
Multifunction steering wheel 158
Resetting to factory default 171Control system menus 157
Audio 166
DISTRONIC* 169
NAV* 168
Off-road 168
Settings 170
Standard display 164
TEL* 189
Trip computer 187
Vehicle configuration 185
Vehicle status message memory 169
Control system submenus 161, 163, 173
Comfort* 184
Instrument cluster 174, 175
Lighting 178
Time/Date 176
Vehicle 181
Coolant 382, 565
Anticorrosion/antifreeze mixing ratio
and quantity 566
Capacities 560
Checking coolant level 377, 382
Messages in the
multifunction display 473, 475
Temperature 374
Temperature display 164

585 Index
Rear lamps see Tail lamps
Rear panorama roof, Sunshade 214
Rear seat head restraints see
Head restraints
Rear towing eye 542
Rear view camera* 295
Rear view mirrors see Mirrors
Rear window defroster 215
Rear window wiper/washer 65
Rear windows see Power windows
Rear wiper blade 521
Recommended tire inflation
pressure 417
Recovery services,
Stolen vehicle (Tele Aid) 339
Refrigerant, Air conditioning 562
Refueling 375
Regular checks 377
Reminder, Seat belt see Seat belts, Telltale
Remote control
SmartKey 114
SmartKey with KEYLESS-GO* 117
Remote door unlock, Tele Aid 338Replacing bulbs 508
Additional turn signals,
Exterior rear view mirrors 515
Backup lamps 508, 509, 515
Brake lamps 508, 509, 515
Corner-illuminating front fog
lamps* 508, 509, 514
Fog lamp, Rear 508, 509, 515
Fog lamps, Front 508, 509, 514
High beam headlamps 508, 509, 512
License plate lamps 508, 509, 518
Low beam headlamps 508, 509, 511
Parking/standing lamps 508, 509,
513, 515, 517
Side marker lamps, Front 508, 509,
511, 514
Side marker lamps, Rear 508, 509,
515, 517
Tail lamps 508, 509, 515, 517
Turn signal lamps, Front 508, 509,
513
Turn signal lamps, Rear 508, 509,
515, 517Reporting safety defects 19
Research Octane Number see RON
Reset button, In instrument cluster 171
Reset tool
Active head restraints,
Depository 504
Residual heat and ventilation 227, 242
Reverse gear position, Automatic
transmission 192
Rims 417, 554
Roadside Assistance 12
Roadside Assistance button see Tele Aid
RON 376, 563
Roof rails 297
Rubber parts, Cleaning 432
Run Flat Indicator (Canada only) 397
S
Safety
Driving safety systems 103
Occupant safety 74
Reporting safety defects 19
Safety belts see Seat belts
Satellite radio* 166
Seat belt force limiter 91

590 Index
Important notes, Tire inflation
pressure 395
Inflation pressure 378, 394, 396
Information placard 389
Inspection 386
Load rating 406, 407, 417
Loading Information 389
Loading terminology 415
Loading the vehicle 388
Low tire pressure telltale, Canada
only 27, 446
Maximum load 418
Messages in the
multifunction display 446
Ply composition and material
used 418
Problems under-/overinflation 405
Retreads 385
Rims and tires 554
Rotating 388
Run Flat Indicator (Canada only) 397
Service life 386
Sizes 406
Snow chains 421
Spare wheel 499, 524
Speed rating 354, 408, 418Storing 387
Temperature 395, 414
Terminology 415
TIN 410, 417
Tire Identification Number see TIN
Tire Pressure Monitoring System
(TPMS), (USA only) 399
TPMS malfunction telltale 446
Traction 354, 414, 418
Tread 418
Tread depth 387, 420
Treadwear indicators 418
Vehicle maximum load on 418
Wear pattern 419
Winter tires 420
Tongue Weight Rating see TWR
Tools 495
Top tether
Children in the vehicle 99
Towing
Trailer 200, 366, 369
Towing eye bolt 542
Towing the vehicle 542, 543
Tow-starting 538, 540Traction 414, 418
4-ETS, Driving safety systems 103,
109
Trailer
Attaching 368
Checking weights 367
Electrical connections 366
Hitch* 366
Loading 367
Towing 366, 369
Weights and ratings 366
Transfer case 203
LOW RANGE mode* 203
Switching LOW RANGE mode* 204
Transmission gear selector lever see Gear
selector lever
Transmission position indicator 157
Transmission positions 195
Transmission see Automatic transmission
Traveling abroad 372
Tread 418
Tread depth 387, 420
Treadwear indicators 418
Trip computer 187
Trip odometer, resetting 156