2016 MERCEDES-BENZ GL-Class 450

BAS PLUS (Brake Assist System
PLUS).................................................... 69
Battery (SmartKey)
Checking .......................................... 85
Important safety notes .................... 85
Replacing ......................................... 85
Battery (vehicle)
Charging ........................................ 394
Display message ............................ 307
Important safety notes .................. 391
Jump starting ................................. 395
Overview ........................................ 391
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating ................. 282
Display message ............................ 314
Notes/function .............................. 244
Trailer towing ................................. 246
see Active Blind Spot Assist
BlueTEC
Adding DEF .................................... 186
BlueTEC (DEF) .................................... 450
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 297
Notes ............................................. 451
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Changing bulbs .............................. 139
Display message ............................ 304
Brakes
ABS .................................................. 68
Adaptive Brake Assist ...................... 72
BAS .................................................. 69
BAS PLUS ........................................ 69
Brake fluid (notes) ......................... 451
Display message ............................ 291
High-performance brake system .... 196
Important safety notes .................. 194
Maintenance .................................. 195
Parking brake ................................ 190
Riding tips ...................................... 194
Warning lamp ................................. 326 Breakdown
Where will I find...? ........................ 386
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 35
Bulbs
see Replacing bulbs
C
CaliforniaImportant notice for retail cus-
tomers and lessees .......................... 26
Calling up a malfunction
see Display messages
Car
see Vehicle
Car key
see SmartKey
Care
360° camera ................................. 380
Car wash ........................................ 376
Carpets .......................................... 384
Display ........................................... 381
Exhaust pipe .................................. 381
Exterior lights ................................ 379
Gear or selector lever .................... 382
Interior ........................................... 381
Matte finish ................................... 378
Night View Assist Plus ................... 382
Notes ............................................. 375
Paint .............................................. 378
Plastic trim .................................... 382
Power washer ................................ 377
Rear view camera .......................... 380
Roof lining ...................................... 384
Seat belt ........................................ 383
Seat cover ..................................... 383
Sensors ......................................... 380
Side running board ........................ 380
Steering wheel ............................... 382
Trim pieces .................................... 382
Washing by hand ........................... 377
Wheels ........................................... 379
Windows ........................................ 379
Wiper blades .................................. 379
Wooden trim .................................. 382
6Index

Consumption statistics (on-board
computer).......................................... 276
Convenience closing feature .............. 99
Convenience opening feature ............ 99
Coolant (engine)
Checking the level ........................ .373
Display message ............................ 306
Filling capacity ............................... 453
Important safety notes .................. 452
Temperature (on-board computer,
Mercedes-AMG vehicles) ...............2 87
Temperature gauge ........................ 273
Warning lamp ................................. 335
Cooling
see Climate control
Copyright ............................................. 31
Cornering light function
Display message ............................ 303
Function/notes .............................1 33
Crash-responsive emergency light-
ing ....................................................... 136
Crosswind Assist ................................. 75
Crosswind driving assistance ............ 75
Cruise control
Activating ....................................... 204
Activation conditions ..................... 203
Cruise control lever ....................... 203
Deactivating ................................... 205
Display message ............................ 317
Driving system ............................... 202
Function/notes .............................2 02
Important safety notes .................. 203
Storing and maintaining current
speed ............................................. 204
Cup holder
Center console .............................. 349
Important safety notes .................. 349
Rear compartment ......................... 350
Temperature controlled ................. 349
Third row of seats .......................... 350
Customer Assistance Center
(CAC) ..................................................... 29
Customer Relations Department ....... 29
D
Data
see Technical data Daytime running lamps
Display message ............................ 305
Function/notes .............................1 30
Switching on/off (on-board com-
puter) ............................................. 284
Declarations of conformity ................. 28
DEF
Adding ...........................................1 86
Display message ............................ 310
Filling capacity ............................... 450
Important safety notes .................. 450
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 284
Interior lighting .............................. 285
Diagnostics connection ......................28
Differential lock (display mes-
sage) .................................................. .312
Digital speedometer ......................... 277
DIRECT SELECT lever
Automatic transmission ................. 173
Display messages
ASSYST PLUS ................................ 374
Calling up (on-board computer) ..... 290
Driving systems .............................3 10
Engine ............................................ 306
General notes ................................ 290
Hiding (on-board computer) ........... 290
KEYLESS-GO .................................. 323
Lights ............................................. 303
Safety systems .............................. 291
SmartKey ....................................... 323
Tires ............................................... 318
Vehicle ...........................................3 20
Distance recorder .............................2 75
Distance warning (warning lamp) .... 337
Distance warning function
Activating/deactivating ................. 281
Function/notes ................................ 70
Warning lamp ................................. 337
DISTRONIC PLUS
Activating ....................................... 207
Activation conditions ..................... 207
Cruise control lever ....................... 207
Deactivating ................................... 210
Display message ............................ 316
8Index

Driving in winter ............................. 197
Driving on flooded roads ................ 196
Driving on sand .............................. 200
Driving on wet roads ...................... 196
Driving over obstacles ................... 201
Exhaust check ............................... 193
Fuel ................................................ 193
General .......................................... 192
Hydroplaning ................................. 196
Icy road surfaces ........................... 197
Limited braking efficiency on sal-
ted roads ....................................... 195
Off-road driving .............................. 199
Off-road fording ............................. 197
Snow chains .................................. 407
Tire ruts ......................................... 201
Towing a trailer .............................. 264
Traveling uphill ............................... 201
Wet road surface ........................... 195
DSR (Downhill Speed Regulation)
Display message ............................ 313
Function/notes ............................. 257
DVD video
Operating (on-board computer) ..... 279
E
EASY-ENTRY featureActivating/deactivating ................. 285
Function/notes ............................. 123
EASY-EXIT feature
Crash-responsive ........................... 124
Function/notes ............................. 123
Switching on/off ........................... 285
EBD (electronic brake force distri-
bution)
Display message ............................ 293
Function/notes ................................ 75
ECO display
Function/notes ............................. 193
On-board computer ....................... 276
ECO start/stop function
Automatic engine start .................. 170
Automatic engine switch-off .......... 169
Deactivating/activating ................. 170
General information ....................... 169
Important safety notes .................. 169
Introduction ................................... 169 Electronic Stability Program
see ESP
®(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 60
Emergency release
Driver's door .................................... 92
Vehicle ............................................. 92
Emergency spare wheel
General notes ................................ 438
Important safety notes .................. 438
Removing ....................................... 439
Storage location ............................ 439
Technical data ............................... 441
Emergency Tensioning Devices
Activation ......................................... 58
Emergency unlocking
Tailgate ............................................ 97
Emissions control
Service and warranty information .... 25
Engine
Check Engine warning lamp ........... 334
Display message ............................ 306
ECO start/stop function ................ 169
Engine number ............................... 447
Irregular running ............................ 172
Jump-starting ................................. 395
Starting (important safety notes) ... 167
Starting problems .......................... 172
Starting the engine with the
SmartKey ....................................... 167
Starting with KEYLESS-GO ............. 168
Switching off .................................. 189
Tow-starting (vehicle) ..................... 400
Engine electronics
Problem (malfunction) ................... 172
E

ngine jump starting
see Jump starting (engine)
Engine oil
Adding ........................................... 372
Additives ........................................ 451
Checking the oil level ..................... 371
Checking the oil level using the
dipstick .......................................... 371
Display message ............................ 308
Filling capacity ............................... 451
Notes about oil grades ................... 450
Notes on oil level/consumption .... 371
10Index

Temperature (on-board computer,
Mercedes-AMG vehicles) ............... 287
Viscosity ........................................451
ESP
®(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 287
Characteristics ................................. 74
Deactivating/activating ................... 74
Display message ............................ 291
Function/notes ................................ 73
General notes .................................. 73
Important safety information ........... 73
Trailer stabilization ........................... 75
Warning lamp ................................. 330
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 73
Exhaust check ................................... 193
Exhaust pipe (cleaning instruc-
tions) ..................................................3 81
Exterior lighting
see Lights
Exterior mirrors
Adjusting ....................................... 124
Dipping (automatic) ....................... 125
Folding in when locking (on-board
computer) ...................................... 286
Folding in/out (automatically) ....... 125
Folding in/out (electrically) ........... 125
Out of position (troubleshooting) ... 125
Setting ........................................... 125
Storing settings (memory func-
tion) ............................................... 127
Storing the parking position .......... 126
Eyeglasses compartment ................. 342
F
Filler cap
see Fuel filler flap
Flat tire
MOExtended tires .......................... 387
Preparing the vehicle ..................... 387
TIREFIT kit ...................................... 388
see Emergency spare wheel
Floormats ........................................... 368
Folding the rear bench seat for-
wards/back ....................................... 344 Fording
Off-road ......................................... 197
On flooded roads ........................... 196
Frequencies
Mobile phone ................................. 444
Two-way radio ................................ 444
Fuel
Additives ........................................ 449
Consumption statistics .................. 276
Displaying the current consump-
tion ................................................ 276
Displaying the range ...................... 276
Driving tips .................................... 193
Fuel gauge ....................................... 35
Grade (gasoline) ............................ 448
Important safety notes .................. 447
Low outside temperatures ............. 450
Problem (malfunction) ................... 185
Quality (diesel) ............................... 449
Refueling ........................................ 182
Tank content/reserve fuel ............. 448
Fuel filler flap
Opening ......................................... 184
Fuel filter (display message) ............ 309
Fuel level
Calling up the range (on-board
computer) ...................................... 276
Fuel tank
Capacity ........................................ 448
Problem (malfunction) ................... 185
Fuses
Allocation chart ............................. 400
Before changing ............................. 400
Dashboard fuse box ....................... 400
Fuse box in the engine compart-
ment .............................................. 401
Fuse box under rear bench seat .... 401
Important safety notes .................. 400
G
Garage door openerClearing the memory ..................... 367
General notes ................................ 364
Important safety notes .................. 365
Opening/closing the garage doo r..3 67
Programming (button in the rear-
view mirror) ................................... 365
Index11

Exit position (3rd row of seats) ...... 116
Folding down/up (third row of
seats) ............................................. 113
Folding the 2nd row of seats
forward electrically ........................ 117
Folding the 2nd row of seats
forward manually ........................... 115
Folding the rear bench seat for-
wards/back ................................... 344
Important safety notes .................. 109
Overview ........................................ 109
Seat heating problem .................... 120
Seat ventilation problem ................ 121
Storing settings (memory func-
tion) ............................................... 127
Switching seat heating on/off ....... 118
Switching seat ventilation on/off .. 120
Section
Sliding sunroof ............................... 102
Selector lever
Cleaning ......................................... 382
Sensors (cleaning instructions) ....... 380
Service menu (on-board com-
puter) .................................................. 283
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 451
Coolant (engine) ............................ 452
DEF special additives ..................... 450
Engine oil ....................................... 450
Fuel ................................................ 447
Important safety notes .................. 447
Refrigerant (air-conditioning sys-
tem) ............................................... 453
Washer fluid ................................... 453
Setting the air distribution ............... 156
Setting the airflow ............................ 156
Settings
Factory (on-board computer) ......... 286
On-board computer ....................... 283
SETUP (on-board computer) ............. 287
Side impact air bag ............................. 52
Side marker lamp (display mes-
sage) ................................................... 305
Side windows
Cleaning ......................................... 379 Convenience closing feature ............ 99
Convenience opening feature .......... 99
Hinged side windows ....................... 98
Important safety information ........... 97
Opening/
closi
ng .............................. 98
Overview .......................................... 97
Problem (malfunction) ................... 102
Resetting ....................................... 100
Reversing feature ............................. 98
Sliding sunroof
Important safety notes .................. 102
Opening/closing ............................ 103
Problem (malfunction) ................... 106
Resetting ....................................... 104
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 85
Changing the programming ............. 84
Checking the battery ....................... 85
Convenience closing feature .......... 100
Convenience opening feature .......... 99
Display message ............................ 323
Door central locking/unlocking ....... 82
Important safety notes .................... 82
KEYLESS-GO start function .............. 84
Loss ................................................. 87
Mechanical key ................................ 84
Overview .......................................... 82
Positions (ignition lock) ................. 165
Problem (malfunction) ..................... 87
Starting the engine ........................ 167
Snow chains
Information .................................... 407
Snow drive program ....................... 255
Sockets
Center console .............................. 353
General notes ................................ 353
Luggage compartment ................... 354
Rear compartment ......................... 353
Special seat belt retractor .................. 61
Specialist workshop ............................ 29
Speed, controlling
see Cruise control
Speedometer
Digital ............................................ 277
In the Instrument cluster ................. 35
Segments ...................................... 272
18Index

water. Seek medical assistance without
delay.
RChange out of clothing contaminated with
DEF immediately.
!Only use DEF in accordance with
ISO 22241. Do not mix any additives with
DEF, and do not dilute DEF with water. This
may destroy the BlueTEC exhaust gas after-
treatment system.
!The vehicle must be parked on level
ground to fill the DEF tank. The DEF tank
can only be filled as intended with the vehi-
cle parked on a level surface. This avoids
false level readings. Filling the tank is not
permitted if the vehicle is not parked on a
level surface. There is a danger of overfill-
ing, which could result in damage to com-
ponents of the BlueTEC exhaust gas after-
treatment.
!Rinse surfaces that have come into con-
tact with DEF immediately with water or
remove DEF using a damp cloth and cold
water. If the DEF has already crystallized,
use a sponge and cold water to clean it. DEF
residues crystallize after time and contam-
inate the affected surfaces.
!DEF is not a fuel additive and must not be
added to the fuel tank. If DEF is added to
the fuel tank, this can lead to engine dam-
age.
For further information on DEF, see
(
Ypage 450).
Opening the DEF filler cap
The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the SmartKey or with KEYLESS-GO.
XSwitch the ignition off.
XPress the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings up.
XTurn blue DEF fuel filler cap ;counter-
clockwise and remove it.
DEF filler cap ;is secured with a plastic
strip.
DEF refill canisters
!Do not tighten the disposable hose with
too much force. The disposable hose may
otherwise be destroyed.
XUnscrew the cap from the opening on top of
DEF refill canister ;.
XPlace disposable hose :on the opening of
DEF refill canister ;and screw it on clock-
wise until hand-tight.
Refueling187
Driving and parking
Z

Example: engine oil capXTurn cap:counter-clockwise and remove
it.
XAdd engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 l)of
engine oil.
XReplace cap :on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely.
XCheck the oil level again with the oil dip-
stick (
Ypage 371).
Further information on engine oil
(
Ypage 450).
Additional service products
Checking coolant level
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
The engine cooling system is pressurized, par-
ticularly when the engine is warm. When
opening the cap, you could be scalded by hot
coolant spraying out. There is a risk of injury.
Let the engine cool down before opening the
cap. Wear eye and hand protection when
opening the cap. Open the cap slowly half a
turn to allow pressure to escape.
XPark the vehicle on a level surface.
Only check the coolant level when the vehi-
cle is on a level surface and the engine has
cooled down.
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 165).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Ypage 165).
XCheck the coolant temperature gauge in
the multifunction display.
The coolant temperature must be below
158 ‡ (70 †).
XTurn the SmartKey to position 0in the igni-
tion lock (
Ypage 165).
XSlowly turn cap :half a turn counter-
clockwise and allow excess pressure to
escape.
XTurn cap :further counter-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the filler neck when cold, there is enough
coolant in coolant expansion tank ;.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar =in the filler
neck when warm, there is enough coolant
in expansion tank ;.
XIf necessary, add coolant that has been tes-
ted and approved by Mercedes-Benz.
XReplace cap:and turn it clockwise as far
as it will go.
Engine compartment373
Maintenance and care
Z

R 19
TiresAlloy wheels
BA: 265/55 R 19 109 H M+SiBA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
R 20
TiresAlloy wheels
BA: 275/50 R 20 109 H M+S iBA: 8.5 J x 20 H2
Wheel offset: 2.44 in (62 mm)
GL 450
All-weather tires
R 19
TiresAlloy wheels
BA: 275/55 R 19 111 H M+S3BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
R 20
TiresAlloy wheels
BA: 275/50 R 20 109 H M+S3, 4BA: 8.5 J x 20 H2
Wheel offset: 2.44 in (62 mm)
All-terrain tires
R 19
TiresAlloy wheels
BA: 275/55 R 19 111 H M+S3BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
Winter tires
R 19
TiresAlloy wheels
BA: 265/55 R 19 109 H M+SiBA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
3Use of snow chains not permitted. Observe the notes in the "Snow chains" section.4Available as MOExtended tires.
Wheel and tire combinations435
Wheels and tires
Z