2015 MERCEDES-BENZ G-Class brake fluid

Axle load, permissible (trailer tow-
ing)
...................................................... 347 B
BabySmart™ Air bag deactivation system ............ .56
Backup lamp
Changing bulb s.............................. 113
BAS (Brake Assist System) ................. 62
Battery
Checking (SmartKey) ....................... 70
Important safety guidelines
(SmartKey) ....................................... 70
Replacing (SmartKey) ...................... 70
Battery (vehicle)
Charging ........................................ 295
Display message ............................ 223
Important safety notes .................. 292
Jump starting ................................. 296
Overview ........................................ 292
Blind Spot Assist
Activating/deactivating ................. 205
Activating/deactivating (on-
board computer) ............................ 205
Display message ............................ 227
Notes/function .............................. 178
Brake fluid
Display message ............................ 216
Notes ............................................. 342
Brake fluid level ................................ 279
Brake lamps
Adaptive ........................................... 63
Display message ............................ 219
Brakes
ABS .................................................. 62
BAS .................................................. 62
Brake fluid (notes) ......................... 342
Display message ............................ 213
High-performance brake system .... 155
Important safety notes .................. 153
Maintenance .................................. 154
Parking brake ................................ 151
Riding tips ...................................... 153
Warning lamp ................................. 236
Breakdown
see Flat tire
see Towing away Brightness control (instrument
cluster lighting)
................................... 31
Brush guard ....................................... 266
Bulbs
Backup lamp .................................. 113
Brake lamp .................................... 113
Cornering light function ................. 110
Fog lamps ...................................... 110
Rear fog lamp ................................ 113
Tail lamp ........................................ 113
see Replacing bulbs C
California Important notice for retail cus-
tomers and lessees .......................... 22
Calling up a malfunction
see Display messages
Care
Car wash ........................................ 281
Carpets .......................................... 287
Chrome parts ................................. 285
Display ........................................... 285
Gear or selector lever .................... 286
Headlamps ..................................... 284
Interior ........................................... 285
Matte finish ................................... 283
Note s............................................. 281
Paint .............................................. 282
Plastic trim .................................... 286
Power washer ................................ 282
Rear view camera .......................... 284
Roof lining ...................................... 287
Seat belt ........................................ 287
Seat covers .................................... 286
Sensors ......................................... 284
Steering wheel ............................... 286
Tail pipe s....................................... 285
Trailer coupling .............................. 285
Trim strips ..................................... 286
Washing by hand ........................... 282
Wheels ........................................... 282
Windows ........................................ 283
Wiper blades .................................. 284
Wooden trim .................................. 286
Cargo compartment cover
Installing/removing ....................... 253 Index
5

Service menu (on-board com-
puter)
.................................................. 206
Service products
Brake fluid .....................................3 42
Coolant (engine) ............................ 342
Engine oil ....................................... 340
Fuel ................................................ 337
Important safety notes .................. 337
Notes ............................................. 337
Refrigerant (air-conditioning sys-
tem) ............................................... 341
Washer fluid ................................... 343
Setting a speed limit
see SPEEDTRONIC
Setting the air distribution ...............124
Settings
Calling up a stored setting .............. .96
Factory (on-board computer) ......... 209
On-board computer ....................... 206
SETUP (on-board computer) ............. 210
Shift ranges ....................................... 145
Side marker lamp (display mes-
sage) ................................................... 220
Side marker lamps (changing
bulbs) ................................................ .112
Side windows
Convenience opening feature .......... 78
Important safety information ........... 77
Opening/closing .............................. 77
Overview .......................................... 77
Troubleshooting ............................... 78
Ski rack .............................................. 254
Sliding sunroof
Important safety notes .................... 79
Opening/closing .............................. 79
Operating manually .......................... 79
Problem (malfunction) ..................... 80
SmartKey
Changing the battery ....................... 70
Changing the programming ............. 69
Checking the battery ....................... 70
Convenience opening feature .......... 78
Display message ............................ 234
Door central locking/unlocking ....... 68
Important safety notes .................... 68
Loss ................................................. 72
Malfunction ...................................... 72 Mechanical key ................................ 69
Overview .......................................... 68
Problem (malfunction) ..................... 72
Starting the engine ........................ 134
Snow chains ...................................... 309
Sockets
Front-passenger footwell .............. .257
Luggage compartment ................... 257
Rear compartment ......................... 257
SOS
see mbrace
Spare fuses ........................................ 301
Spare wheel
Mounting ....................................... 327
Notes/data ................................... .333
Spare wheel bracket at the rear .... 291
Stainless-steel spare hub cap ....... .291
Special seat belt retractor .................. 53
Specialist workshop ............................ 24
Speed, controlling
see Cruise control
Speedometer
Digital ............................................ 201
In the Instrument cluster .............. .197
Segments ...................................... 198
Selecting the unit of measure-
ment .............................................. 206
see Instrument cluster
SPEEDTRONIC
Display message ............................ 228
Selecting ........................................ 167
Variabl e......................................... 166
Standing lamps
Display message ............................ 220
Switching on/of f........................... 102
Starting the engine
Important safety notes .................. 134
Steering (display message) .............. 233
Steering wheel
Adjusting (electrically) ..................... 91
Buttons (on-board computer) ......... 198
Cleaning ......................................... 286
Important safety notes .................... 90
Paddle shifters ............................... 144
Steering wheel heating .................... 91
Storing settings (memory func-
tion) ................................................. 95 Index
15

W
Warning and indicator lamps ABS ................................................ 237
Brakes .......................................... .236
Check Engine ................................. 243
Coolant .......................................... 243
Cruise control ................................ 163
Distance warning ........................... 245
DISTRONIC PLUS ........................... 245
ESP® ............................................. 239
ESP® OFF ...................................... 240
Fuel tank ........................................ 243
LIM (DISTRONIC PLUS) .................. 171
LIM (variable SPEEDTRONIC) ......... 167
Overview .................................. 32, 234
Parking brake ................................ 242
PASSENGER AIR BAG OFF .............. .42
Reserve fuel .................................. .243
Restraint system ............................ 242
Seat belt ........................................ 235
Tire pressure monitor .................... 246
Warning triangle ................................ 290
Warranty .............................................. 21
Washer fluid
Display message ............................ 234
Wheel bolt tightening torque ........... 330
Wheels
Changing a wheel .......................... 327
Checking ........................................ 307
Cleaning ......................................... 282
Important safety notes .................. 306
Interchanging/changing ................ 327
Mounting a new wheel ................... 330
Mounting a wheel .......................... 328
Overview ........................................ 306
Removing a wheel .......................... 330
Storing .......................................... .328
Technical data ............................... 331
Tightening torque ........................... 330
Wheel size/tire size ....................... 331
Window curtain air bag
Display message ............................ 217
Operation ......................................... 49
Windows
see Side windows
Windows (cleaning instructions) ..... 283Windshield
Defrosting ...................................... 125
Windshield heating ........................... 126
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 278
Notes ............................................. 343
Windshield wipers
Problem (malfunction) ................... 116
Rear window wiper ........................ 115
Replacing the wiper blades ............ 115
Switching on/off ........................... 114
Winter
Driving in winter ............................ .157
Winter operation ............................ 308
Winter driving
Snow chains .................................. 309
Winter operation
Overview ........................................ 308
Winter tires
M+S tires ....................................... 308
Wiper blades
Cleaning ......................................... 284
Important safety notes .................. 115
Replacing ....................................... 115 Index
19

helps avoid overheating and excessive
wear of the brakes.
When you take advantage of the engine
braking effect, a drive wheel may not turn
for some time, e.g. on a slippery road sur-
face. This could cause damage to the drive train. This type of damage is not covered bythe Mercedes-Benz warranty.
Heavy and light loads G
WARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
! Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy load, do not stop the vehicle immediately, but
drive on for a short while. This allows the air- flow to cool the brakes more quickly.
Wet roads If driving in heavy rain for a prolonged period
of time without braking, there may be a
delayed reaction from the brakes when brak-
ing for the first time. This may also occur after
the vehicle has been washed.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehi-
cle washed, brake firmly while paying atten-
tion to the traffic conditions. This will warm up
the brake discs, thereby drying them more
quickly and protecting them against corro-
sion. Limited braking performance on salt-
treated roads If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
R Brake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
R Carefully depress the brake pedal and the
beginning and end of a journey.
R Maintain a greater distance to the vehicle
ahead.
Servicing the brakes !
If the brake warning lamp lights up in the
instrument cluster and you hear a warning
tone even though the parking brake has
been released, the brake fluid level may be too low. Observe additional warning mes-
sages in the multifunction display.
The brake fluid level may be too low due tobrake pad wear or leaking brake lines.
Have the brake system checked immedi-
ately. This work should be carried out at a
qualified specialist workshop.
! A function or performance test should
only be carried out on a 2-axle dynamom-
eter. If you are planning to have the vehicle
tested on such a dynamometer, contact an
authorized Mercedes-Benz Center to
obtain further information first. Otherwise,
you could damage the drive train or the
brake system.
! As the ESP ®
system operates automati-
cally, the engine and the ignition must be
switched off (the SmartKey must be in posi-
tion 0or 1in the ignition lock) if the parking
brake is tested on a brake dynamometer
(for a maximum of ten seconds).
Braking applications triggered automati-
cally by ESP ®
may otherwise seriously dam-
age the brake system. 154
Driving tipsDriving and parking

Mercedes-Benz recommends that you only
have brake pads/linings installed on your
vehicle which have been approved for
Mercedes-Benz vehicles or which correspond to an equivalent quality standard. Brake
pads/linings which have not been approved
for Mercedes-Benz vehicles or which are not
of an equivalent quality could affect your vehi-
cle's operating safety.
Mercedes-Benz recommends that you only
use brake fluid that has been specially
approved for your vehicle by Mercedes-Benz,
or which corresponds to an equivalent quality standard. Brake fluid which has not been
approved for Mercedes-Benz vehicles or
which is not of an equivalent quality could
affect your vehicle's operating safety.
All checks and maintenance work on the
brake system must be carried out at a quali-
fied specialist workshop.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If your brake system is subject only to mod-
erate loads, you should test the functionality
of your brakes at regular intervals by pressing
firmly on the brake pedal at high speeds. This improves the grip of the brake pads.
You can find a description of Brake Assist
(BAS) on (Y page 62).
High-performance brake system for
AMG vehicles The high-performance brake system is only
installed on the G 63 AMG and the G 65 AMG.
The high-performance brake system is
designed for heavy loads. This may lead to
noise when braking. This will depend on:
R Speed
R Braking force
R Environmental conditions, such as temper-
ature and humidity
The wear of individual components of the
brake system, such as the brake pads/linings
or brake discs, depends on the individual driv-
ing style and operating conditions. For this reason, it is impossible to state a
mileage that will be valid under all circum-
stances. An aggressive driving style will lead
to high wear. You can obtain further informa-
tion about this from your authorized
Mercedes-Benz Center.
New and replaced brake pads and discs only
reach their optimum braking effect after sev-
eral hundred kilometers of driving. Compen-
sate for this by applying greater force to the
brake pedal. Keep this in mind, and adapt
your driving and braking accordingly during
this break-in period.
Excessive heavy braking results in corre-
spondingly high brake wear. Observe the
brake system warning lamp in the instrument
cluster and note any brake status messages
in the multifunction display. For high-per-
formance driving in particular, it is important
to maintain and have the brake system
checked regularly.
Parking brake G
WARNING
If you must brake the vehicle with the parking brake, the braking distance is considerably
longer and the wheels could lock. There is an
increased danger of skidding and accidents.
Only use the parking brake to brake the vehi- cle when the service brake is faulty. Do not
apply the parking brake too firmly. If the
wheels lock, release the parking brake until
the wheels begin turning again.
If you brake the vehicle with the parking
brake, the brake lamps will not light up.
If you drive on wet roads or dirt-covered sur-
faces, road salt and/or dirt could get into the parking brake. Driving tips
155Driving and parking Z

Display messages
Possible causes/consequences and
M
MSolutions $(USA
only)J
(Canada
only)
Check Brake Fluid Check Brake Fluid
Level Level There is not enough brake fluid in the brake fluid reservoir. In
addition, the
$(USA only)/J (Canada only) warning lamp
lights up in the instrument cluster and a warning tone sounds.
G WARNING
The braking effect may be impaired.
There is a risk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away (Y page 150).
X Consult a qualified specialist workshop.
X Do not add brake fluid. This does not correct the malfunction. #
Check Brake Pad Check Brake Pad
Wear Wear The brake pads/linings have reached their wear limit.
X Visit a qualified specialist workshop. G
mbrace Inoperative mbrace Inoperative USA only:
one or more main functions of the mbrace system are
malfunctioning.
Canada only: one or more main functions of the TELE AID system
are malfunctioning.
X USA only: have the mbrace system checked at a qualified spe-
cialist workshop.
X Canada only: have the Tele AID system checked at a qualified
specialist workshop. 6
SRS Malfunction SRS Malfunction
Service Required Service Required The restraint system is faulty. The
6warning lamp also lights
up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig- gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop.
For further information about the restraint system, see
(Y page 40). 216
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Telephone No Ser‐
Telephone No Ser‐
vice vice Your vehicle is outside the network provider's transmitter/
receiver range.
X Wait until the mobile phone operational readiness symbol
appears in the multifunction display. ¥
Check Washer Fluid Check Washer Fluid The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
X Add washer fluid (Y page 278).SmartKey
Display messages
Possible causes/consequences and
M MSolutions Â
Key Does Not Key Does Not
Belong to Vehicle Belong to Vehicle You have put the wrong SmartKey in the ignition lock.
X Use the correct SmartKey. Â
Take Take
Your
YourKey
Keyfrom
from
Ignition
Ignition The SmartKey is in the ignition lock.
X Remove the SmartKey. Â
Obtain a New Key Obtain a New Key The SmartKey needs to be replaced.
X Visit a qualified specialist workshop. Warning and indicator lamps in the
instrument cluster Overview of warning and indicator
lamps
L Low-beam headlamps (Y page 99)
#
! Turn signal (Y
page 103)
K High-beam headlamps
(Ypage 103)
N Front fog lamps (Y page 101)
R Rear fog lamp (Y page 101)
ü Seat belts (Y page 235)
$
(USA) Braking (Y
page 236) J
(Can-
ada)
Brakes (yellow) (Y
page 236)
! ABS (Ypage 237)
÷ ESP®
(Y page 239)
å ESP®
OFF (Y page 239)
6 Restraint system (Y page 242)
; Check engine (Y page 243)
8 Reserve fuel (Y page 243)
? Coolant (Y page 243)
· Distance warning signal
(Ypage 245)
h Tire pressure monitor
(Ypage 246) 234
Wa
rning and indi cator lamps in the instrument clusterOn-board computer and displays

Safety systems
Problem
Possible causes/consequences and
M
MSolutions $
(USA only)
J (Canada only)
USA only: the red
brake system warning
lamp is lit while the
engine is running. A
warning tone also
sounds.
Canada only: the yel-
low brake system warn-
ing lamp is lit while the
engine is running. A
warning tone also
sounds. G
WARNING
The brake boosting effect is malfunctioning and the braking char- acteristics may be affected.
There is a risk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away (Y page 150).
X Consult a qualified specialist workshop.
X Observe the additional display messages in the multifunction
display. $
(USA only)
J (Canada only)
USA only: the red
brake system warning
lamp is lit while the
engine is running. A
warning tone also
sounds.
Canada only: the yel-
low brake system warn-
ing lamp is lit while the
engine is running. A
warning tone also
sounds. There is not enough brake fluid in the brake fluid reservoir.
G WARNING
The braking effect may be impaired.
There is a risk of an accident. X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away (Y page 150).
X Do not add brake fluid. Adding more will not remedy the mal-
function.
X Consult a qualified specialist workshop.
X Observe the additional display messages in the multifunction
display. 236
Warning and indicator lamps in the instrument clusterOn-board computer and displays