2015 MERCEDES-BENZ M-Class warning lights

BAS PLUS (Brake Assist System
PLUS)
.................................................... 69
Battery (SmartKey) Checking .......................................... 83
Important safety notes .................... 83
Replacing ......................................... 83
Battery (vehicle)
Charging ........................................ 389
Display message ............................ 301
Important safety notes .................. 387
Jump starting ................................. 391
Overview ........................................ 387
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating ................. 276
Display message ............................ 308
Notes/function .............................. 237
Trailer towing ................................. 239
see Active Blind Spot Assist
BlueTEC
Adding DEF .................................... 180
BlueTEC (DEF) .................................... 451
Brake Assist see BAS (Brake Assist System)
Brake fluid
Display message ............................ 291
Notes ............................................. 453
Brake lamps
Changing bulb s.............................. 132
Display message ............................ 298
Brakes
ABS .................................................. 68
Adaptive Brake Assist ...................... 71
BAS .................................................. 68
BAS PLUS ........................................ 69
Brake fluid (notes) ......................... 453
Display message ............................ 285
High-performance brake system .... 189
Important safety notes .................. 188
Maintenance .................................. 189
Parking brake ................................ 184
Riding tips ...................................... 188
Warning lamp ................................. 320
Breakdown
see Flat tire
see Towing away Brightness control (instrument
cluster lighting)
................................... 35
Bulbs see Replacing bulbs C
California Important notice for retail cus-
tomers and lessees .......................... 26
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
360° camera ................................. 376
Carpets .......................................... 379
Car wash ........................................ 372
Displa y........................................... 377
Exhaust pipe .................................. 376
Exterior lights ................................ 375
Gear or selector lever .................... 378
Interior ........................................... 377
Matte finish ................................... 374
Night View Assist Plus ................... 377
Notes ............................................. 371
Paint .............................................. 373
Plastic trim .................................... 378
Power washe r................................ 373
Rear view camera .......................... 376
Roof lining ...................................... 379
Seat belt ........................................ 379
Seat cover ..................................... 378
Sensors ......................................... 375
Steering wheel ............................... 378
Trim pieces .................................... 378
Washing by hand ........................... 373
Wheels ........................................... 374
Windows ........................................ 375
Wiper blades .................................. 375
Wooden trim .................................. 378
Cargo compartment cover
Notes/how to use ......................... 340
Cargo compartment enlargement
Important safety notes .................. 337
Cargo compartment floor
Opening/closing ............................ 344
Stowage well (under )..................... 344 6
Index

Combination switch
.......................... 123
Combined cargo cover and net ........ 341
Consumption statistics (on-board
computer) .......................................... 269
Convenience closing feature .............. 95
Convenience opening feature ............ 95
Coolant (engine) Checking the level ........................ .369
Display message ............................ 300
Filling capacity ............................... 454
Important safety notes .................. 453
Temperature (on-board com-
puter) ............................................. 281
Temperature gauge ........................ 266
Warning lamp ................................. 328
Cooling
see Climate control
Copyright ............................................. 31
Cornering light function Display message ............................ 297
Function/notes ............................ .125
Crash-responsive emergency light-
ing ....................................................... 129
Cruise control Activating ....................................... 196
Activation conditions ..................... 196
Cruise control lever ....................... 196
Deactivating ................................... 197
Display message ............................ 311
Driving system ............................... 195
Function/notes ............................ .195
Important safety notes .................. 196
Storing and maintaining current
speed ............................................. 196
Cup holder
Center console .............................. 346
Important safety notes .................. 345
Rear compartment ......................... 346
Temperature controlled ................. 346
Customer Assistance Center
(CAC) ..................................................... 29
Customer Relations Department ....... 29 D
Dashboard see Instrument cluster
Data
see Technical data
Daytime running lamps
Display message ............................ 299
Function/notes ............................ .120
Switching on/off (on-board com-
puter) ............................................. 277
Declarations of conformity ................. 28
DEF Adding .......................................... .180
Display message ............................ 303
Filling capacity ............................... 452
Important safety notes .................. 451
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 278
Interior lighting .............................. 279
Diagnostics connection ......................28
Diesel .................................................. 449
Differential lock (display mes-
sage) .................................................. .306
Digital speedometer ......................... 270
DIRECT SELECT lever Automatic transmission ................. 168
Display messages
ASSYST PLUS ................................ 370
Calling up (on-board computer) ..... 284
Driving systems ............................ .304
Engine ............................................ 300
General notes ................................ 284
Hiding (on-board computer) ........... 284
KEYLESS-GO .................................. 317
Lights ............................................. 297
Safety systems .............................. 285
SmartKey ....................................... 317
Tires ............................................... 312
Vehicle .......................................... .315
Distance recorder
see Odometer
see Trip odometer
Distance warning (warning lamp) .... 3308
Index

Engine
Check Engine warning lamp .......... .327
Display message ............................ 300
ECO start/stop function ................ 162
Engine number ............................... 447
Irregular running ............................ 167
Jump-starting ................................. 391
Starting problems .......................... 167
Starting the engine with the
SmartKey ....................................... 160
Starting with KEYLESS-GO ............. 160
Switching off .................................. 183
Tow-starting (vehicle) ..................... 396
Engine electronics
Problem (malfunction) ................... 167
Engine jump starting
see Jump starting (engine)
Engine oil
Adding .......................................... .368
Additives ........................................ 453
Checking the oil level ..................... 367
Checking the oil level using the
dipstick .......................................... 367
Display message ............................ 302
Filling capacity ............................... 452
Notes about oil grades ................... 452
Notes on oil level/consumption .... 367
Temperature (on-board com-
puter) ............................................. 281
Viscosity ........................................ 453
ESP ®
(Electronic Stability Pro-
gram) AMG menu (on-board computer) ... 281
Characteristics ................................. 73
Deactivating/activating ................... 73
Display message ............................ 285
ETS/4ETS ........................................ 72
Function/notes ................................ 72
General notes .................................. 72
Important safety information ........... 73
Trailer stabilization ........................... 74
Warning lamp ................................. 323
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 72
Exhaust check ................................... 186
Exhaust pipe (cleaning instruc-
tions) ................................................. .376 Exterior lighting
see Lights
Exterior mirrors
Adjusting ....................................... 114
Dipping (automatic) ....................... 115
Folding in/out (automatically) ....... 115
Folding in/out (electrically) ........... 115
Folding in when locking (on-board computer) ...................................... 280
Out of position (troubleshooting) ... 115
Setting ........................................... 115
Storing settings (memory func-
tion) ............................................... 116
Storing the parking position .......... 116
Eyeglasses compartment ................. 336 F
Filler cap see Fuel filler flap
Flat tire
MOExtended tire s.......................... 383
Preparing the vehicle ..................... 383
TIREFIT kit ...................................... 384
see Emergency spare wheel
Floormats ........................................... 364
Folding the rear bench seat for-
wards/back ....................................... 337
Fording Off-road ......................................... 190
On flooded roads ........................... 190
Fuel
Additives ........................................ 449
Consumption statistics .................. 269
Displaying the current consump-
tion ................................................ 270
Displaying the range ...................... 270
Driving tips .................................... 186
Flexible fuel vehicles ...................... 450
Fuel gaug e....................................... 35
Grade (gasoline )............................ 448
Important safety notes .................. 448
Low outside temperature s............. 450
Premium-grade unleaded gaso-
line ................................................. 448
Problem (malfunction) ................... 180
Quality (diesel )............................... 449 Index
11

Setting the brightness of the
ambient lighting (on-board com-
puter) ............................................. 278
Setting the color of the ambient
lighting (on-board computer) ......... 278
J
Jack Storage location ............................ 382
Using ............................................. 425
Jump starting (engine) ...................... 391K
KEYLESS-GO Convenience closing feature ............ 96
Display message ............................ 317
Locking ............................................ 81
Removing the Start/Stop button ... 159
Start/Stop button .......................... 158
Starting the engine ........................ 160
Unlocking ......................................... 81
Key positions
KEYLESS-GO .................................. 158
SmartKey ....................................... 157
Kickdown
Driving tips .................................... 171
Manual drive progra m.................... 175
Knee bag .............................................. 52 L
Lamps see Warning and indicator lamps
Lane detection (automatic)
see Lane Keeping Assist
Lane Keeping Assist
Activating/deactivating ................. 276
Display message ............................ 307
Function/information .................... 239
see Active Lane Keeping Assist
Lap time (RACETIMER) ...................... 282
LATCH-type (ISOFIX) child seat
anchors ................................................ 63
Level control (display message) ...... 304Level control (vehicles with AIR-
MATIC package)
Basic settings ................................ 214
Function/note s............................. 213
Important safety notes .................. 213
Level control (vehicles with the
ON&OFFROAD package) Basic settings ................................ 207
Function/note s............................. 206
Important safety notes .................. 206
License plate lamp (display mes-
sage) ................................................... 298
Light function, active Display message ............................ 299
Lights
Activating/deactivating the inte-
rior lighting delayed switch-off ....... 279
Active light function ....................... 125
Adaptive Highbeam Assist ............. 126
Automatic headlamp mod e............ 120
Cornering light function ................. 125
Driving abroad ............................... 120
Hazard warning lamps ................... 124
High beam flashe r.......................... 124
High-beam headlamp s................... 124
Light switch ................................... 120
Low-beam headlamp s.................... 121
Parking lamps ................................ 122
Rear fog lamp ................................ 122
Setting the brightness of the
ambient lighting (on-board com-
puter) ............................................. 278
Setting the color of the ambient
lighting (on-board computer) ......... 278
Standing lamps .............................. 123
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 277
Switching the exterior lighting
delayed switch-off on/off (on-
board computer) ............................ 278
Switching the surround lighting
on/off (on-board computer) .......... 278
Turn signals ................................... 123
see Interior lighting
see Replacing bulbs
Light sensor (display message) ....... 300 Index
13

See “Children in the vehicle” for information
on children traveling with you as well as vehi-
cle restraint systems (Y page 61).Important safety notes
G
WARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify an air bag system to
accommodate a person with disabilities, con- tact an authorized Mercedes-Benz Center for
details. USA only: for further information con- tact our Customer Assistance Center at
1-800-FOR-MERCedes (1‑800‑ 367‑6372). Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and
at regular intervals while the engine is run-
ning. Therefore, malfunctions can be detec-
ted in good time.
The 0075 restraint system warning lamp in
the instrument cluster lights up when the igni- tion is switched on. It goes out no later than afew seconds after the engine is started. The
components of the restraint system are in
operational readiness.
A malfunction has occurred if the 0075
restraint system warning lamp:
R does not light up after the ignition is
switched on
R does not go out after a few seconds with
the engine running
R lights up again while the engine is running G
WARNING
If restraint system is malfunctioning, restraint system components may be triggered unin-
tentionally or might not be triggered at all in
the event of an accident with a high rate of
vehicle deceleration. This can affect the Emer- gency Tensioning Device or air bag, for exam-
ple. This poses an increased risk of injury or
even fatal injury.
Have the restraint system checked and
repaired in a qualified specialist workshop as
soon as possible. PASSENGER AIR BAG OFF indicator
lamp
PASSENGER AIR BAG OFF indicator lamp
0043
is part of the Occupant Classification System (OCS).
The PASSENGER AIR BAG OFF indicator lamp
informs you about the status of the front-
passenger front air bag.
If the PASSENGER AIR BAG OFF indicator
lamp:
R is lit : the front-passenger front air bag is
deactivated. They will then not be deployed
in the event of an accident.
R does not light up: the front-passenger
front air bag is enabled. If, in the event of an
accident, all deployment criteria are met,
the front-passenger front air bag is
deployed. Occupant safety
45Safety Z

The shoulder section of the seat belt must
always be routed across the center of the
shoulder. Adjust the belt sash guide if neces-
sary.
X To raise: slide the belt guide upwards.
The belt guide will engage in various posi-
tions.
X To lower: hold belt guide release 0043and
slide the belt guide downwards.
X Let go of belt guide release 0043in the
desired position and make sure that the
belt guide engages.
All seat belts except the driver's seat belt are equipped with a special seat belt retractor to
securely fasten child restraint systems in the
vehicle. Further information can be found
under "Special seat belt retractor"
(Y page 61).
Releasing seat belts !
Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt. Dam-
aged seat belts can no longer fulfill their
protective function and must be replaced.
Visit a qualified specialist workshop. X
Press release button 0043, hold belt
tongue 0044and guide it back towards belt
outlet 0087.
Seat belt adjustment The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. This
function adjusts the driver's and front-
passenger seat belt to the upper body of the
occupants.
The belt strap is tightened slightly when:
R the belt tongue is engaged in the buckle
and
R the ignition is switched on
The seat-belt adjustment will apply a certain
tightening force if any slack is detected
between the vehicle occupant and the seat
belt. Do not hold on to the seat belt tightly
while it is adjusting.
You can switch the seat-belt adjustment on
and off in the on-board computer
(Y page 280).
Belt warning for the driver and front
passenger The
0076 seat belt warning lamp in the instru-
ment cluster is a reminder that all occupants
must fasten their seat belts. It may light up
continuously or flash. In addition, there may
be a warning tone.
Regardless of whether the driver's and front- passenger seat belts have already been fas-
tened, the 0076seat belt warning lamp lights
up for six seconds each time the engine is
started. If, after six seconds, the driver or
front-passenger seat belt has not been fas-
tened and the doors are closed, the 0076seat
belt warning lamp lights up. As soon as the
driver's and front-passenger seat belts are
fastened or a front door is opened again, the
0076 seat belt warning lamp goes out.
If the driver's seat belt is not fastened after
the engine is started, an additional warning
tone will sound. This warning tone stops after Occupant safety
49Safety Z

If OCS determines that:
R the front-passenger seat is unoccupied, the
PASSENGER AIR BAG OFF indicator lamp
lights up after the system self-test and
remains lit. This indicates that the front-
passenger front air bag is deactivated.
R the front-passenger seat is occupied by a
child of up to 12 months old, in a standard
child restraint system, the PASSENGER AIR BAG OFF indicator lamp lights up after the
system self-test and remains lit. This indi-
cates that the front-passenger front air bag
is deactivated.
But in the case of a 12-month-old child, in a standard child restraint system, the
PASSENGER AIR BAG OFF indicator lamp
can go out after the system self-test. This
indicates that the front-passenger front air
bag is activated. The result of the classifi-
cation is dependent on, among other fac-
tors, the child restraint system and the
child's stature. It is recommended that you
install the restraint system on a suitable
rear seat.
R the front-passenger seat is occupied by a
person of smaller stature (e.g. a teenager
or small adult), the PASSENGER AIR BAG
OFF indicator lamp lights up and remains lit after the system self-test depending on the result of the classification or, alternatively,
goes out.
- if the PASSENGER AIR BAG OFF indicator
lamp is off, move the front-passenger
seat as far back as possible. Alterna-
tively, a person of small stature can sit on
a rear seat.
- if the PASSENGER AIR BAG OFF indicator
lamp is lit, a person of smaller stature
should not use the front-passenger seat.
R the front-passenger seat is occupied by an
adult or a person of a stature correspond-
ing to that of an adult, the PASSENGER AIR BAG OFF indicator lamp goes out after the
system self-test. This indicates that the
front-passenger front air bag is activated. If children are traveling in the vehicle, be sure
to observe the notes on "Children in the vehi-
cle" (Y page 61).
When OCS is malfunctioning, the red 0075
restraint system warning lamp in the instru-
ment cluster and the PASSENGER AIR BAG
OFF indicator lamp light up simultaneously.
The front-passenger front air bag is deactiva-
ted in this case and does not deploy during an accident. Have the system checked by quali-
fied technicians as soon as possible. Consult
an authorized Mercedes-Benz Center. The
front-passenger seat should only be repaired at an authorized Mercedes-Benz Center.
If the front-passenger seat, the seat cover orthe seat cushion is damaged, have the nec-
essary repair work carried out at an author-
ized Mercedes-Benz Center.
For safety reasons, Mercedes-Benz recom-
mends that you only use seat accessories
that have been approved by Mercedes-Benz.
If the driver's air bag deploys, this does not
mean that the front-passenger front air bag
will also deploy. The Occupant Classification
System (OCS) categorizes the occupant in the
front-passenger seat. Depending on that
result, the front-passenger front air bag is
either enabled or deactivated.
System self-test G
DANGER
If the PASSENGER AIR BAG OFF indicator
lamp does not light up during the system self- test, then the system is malfunctioning. The
front-passenger front air bag might be trig-
gered unintentionally or might not be trig-
gered at all in the event of an accident with
high deceleration. This poses an increased
risk of injury or even fatal injury.
In this case the front-passenger seat may not be used. Do not install a child restraint system
on the front-passenger seat. Have the Occu-
pant Classification System (OCS) checked
and repaired immediately at a qualified spe-
cialist workshop. Occupant safety
55Safety Z

snow chains. Only in this way will the driv-
ing safety systems described in this section
work as effectively as possible. ABS (Anti-lock Braking System)
General information ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the vehi-
cle when braking.
The 0025 ABS warning lamp in the instrument
cluster lights up when the ignition is switched on. It goes out when the engine is running.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 67). G
WARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally, further driving safety systems are deac-
tivated. There is an increased danger of skid- ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information on the ABS warning lamp (Y page 320) and
display messages which may be shown in the
instrument cluster (Y page 285).
ABS works from a speed of about 5 mph
(8 km/h), regardless of road-surface condi-
tions. ABS works on slippery surfaces, even
when you only brake gently. Braking X
If ABS intervenes: continue to depress the
brake pedal vigorously until the braking sit- uation is over.
X To make a full brake application:
depress the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indica-
tion of hazardous road conditions, and func-
tions as a reminder to take extra care while
driving.
Off-road ABS An ABS system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated (Y page 251).
At speeds below 20 mph (30 km/h), the front
wheels lock cyclically during braking. The dig-
ging-in effect achieved in the process reduces the stopping distance on off-road terrain. This
limits steering capability. BAS (Brake Assist System)
General information BAS operates in emergency braking situa-
tions. If you depress the brake pedal quickly,
BAS automatically boosts the braking force,
thus shortening the stopping distance.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 67). G
WARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking. 68
Driving safety systemsSafety