refrigerant type MERCEDES-BENZ M-Class 2015 W166 Owner's Manual

Cargo net
Attaching ...................................... .342
Important safety information ......... 342
Cargo tie down rings ......................... 339
Car key see SmartKey
CD player/CD changer (on-board
computer) .......................................... 273
Center console Lower section .................................. 39
Upper section .................................. 38
Central locking
Automatic locking (on-board com-
puter) ............................................. 279
Locking/unlocking (SmartKey) ....... .80
Changing bulbs
Brake lamps .................................. .132
High-beam headlamps ................... 131
Low-beam headlamps .................... 130
Parking lamps ................................ 131
Side marker lamps ......................... 131
Standing lamps (front) ................... 131
Child-proof locks
Important safety notes .................... 66
Rear doors ....................................... 66
Children
In the vehicle ................................... 61
Restraint systems ............................ 62
Special seat belt retractor .............. .61
Child seat
Forward-facing restraint system ...... 65
LATCH-type (ISOFIX) child seat
anchors ............................................ 63
On the front-passenger seat ............ 65
Rearward-facing restraint system .... 65
Top Tether ...................................... .64
Cigarette lighter ................................ 348
Cleaning Mirror turn signal .......................... .375
Trailer tow hitch ............................ .376
Climate control
Automatic climate control (3-
zone) .............................................. 142
Controlling automatically .............. .146
Cooling with air dehumidification .. 144
Defrosting the windows ................. 150
Defrosting the windshield .............. 149 Dual-zone automatic climate con-
trol ................................................. 139
General notes ................................ 138
Indicator lamp ................................ 146
Information about using auto-
matic climate control ..................... 144
Maximum cooling .......................... 149
Overview of systems ..................... .138
Problems with cooling with air
dehumidification ............................ 146
Problem with the rear window
defroster ........................................ 151
Rear control panel ......................... 142
Refrigerant ..................................... 455
Refrigerant filling capacity ............. 455
Setting the air distribution ............. 148
Setting the airflow ......................... 148
Setting the air vents ..................... .152
Setting the climate mode (AIR
FLOW) ............................................ 147
Setting the temperature ................ 147
Switching air-recirculation mode
on/off ............................................ 151
Switching on/off ........................... 144
Switching residual heat on/off ...... 151
Switching the rear window
defroster on/off ............................ 150
Switching the ZONE function on/
off ................................................. .149
Climate control system
Automatic engine start .................. 163
Automatic engine switch-off .......... 162
Deactivating/activating ................. 163
General information ....................... 162
Important safety notes .................. 162
Introduction ................................... 162
Coat hooks ......................................... 342
Cockpit Overview .......................................... 34
see Instrument cluster
COLLISION PREVENTION ASSIST
Operation/notes .............................. 70
COMAND
ON&OFFROAD menu ..................... 255
see separate operating instructions
COMAND display
Cleaning ......................................... 377 Index
7

Radio
Selecting a station ......................... 272
see separate operating instructions
Radio-controlled devices (instal-
ling) ..................................................... 364
Radio-wave reception/transmis-
sion in the vehicle Declaration of conformity ................ 28
Reading lamp ..................................... 127
Rear compartment Setting the air vents ...................... 153
Rear fog lamp
Switching on/off ........................... 122
Rear seats
Adjusting ....................................... 108
Rear view camera
Cleaning instructions ..................... 376
Function/notes ............................ .224
Switching on/off ........................... 225
Rear-view mirror
Anti-glare (manual) ........................ 114
Dipping (automatic) ....................... 115
Rear window defroster
Problem (malfunction) ................... 151
Switching on/off ........................... 150
Rear window wiper
Replacing the wiper blade .............. 134
Switching on/off ........................... 133
Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 455
Refueling
Fuel gauge ....................................... 35
Important safety notes .................. 177
Refueling process .......................... 178
see Fuel
Remote control
Programming (garage door
opener) .......................................... 361
Replacing bulbs
Important safety notes .................. 129
Overview of bulb type s.................. 129
Removing/replacing the cover
(front wheel arch) .......................... 130
Reporting safety defects .................... 29
Reserve (fuel tank) see Fuel Reserve fuel
Display message ............................ 302
Warning lamp ................................. 327
see Fuel
Residual heat (climate control) ........ 151
Restraint system Display message ............................ 293
Introduction ..................................... 44
Warning lamp ................................. 326
Warning lamp (function) ................... 45
Reversing feature
Panorama sliding sunroo f................ 98
Roller sunblind s............................... 99
Side windows ................................... 94
Sliding sunroof ................................. 98
Tailgate ............................................ 90
Reversing lamps (display mes-
sage) ................................................... 299
Roadside Assistance (breakdown) .... 26
Roller sunblind Panorama roof with power tilt/
sliding panel ..................................... 99
Rear side window s......................... 347
Roof carrier ........................................ 345
Roof lining and carpets (cleaning
guidelines) ......................................... 379
Roof load (maximum) ........................ 456
Route (navigation) see Route guidance (navigation)
Route guidance (navigation) ............ 271 S
Safety Children in the vehicle ..................... 61
Child restraint systems .................... 62
Occupant Classification System
(OCS) ............................................... 53
Safety system
see Driving safety systems
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 49
Adjusting the height ......................... 48
Cleaning ......................................... 379
Correct usage .................................. 47
Fastening ......................................... 48 Index
17

At temperatures above freezing:
X Fill the washer fluid reservoir with a mixture
of water and windshield washer fluid, e.g.
MB SummerFit.
Add 1 part MB SummerFit to 100 parts water.
At temperatures below freezing:
X Fill the washer fluid reservoir with a mixture
of water and washer fluid, e.g. MB Winter-
Fit.
Adapt the mixing ratio to the outside temper-
ature.
R Down to 14 ‡ (00F8 10 †): mix 1 part MB Win-
terFit to 2 parts water.
R Down to 00F84 ‡ (00F820 †): mix 1 part MB Win-
terFit to 1 part water.
R Down to 00F820.2 ‡ (00F8 29 †): mix 2 parts MB
WinterFit to 1 part water.
i Add windshield washer fluid, e.g. MB
SummerFit or MB WinterFit, to the washer
fluid all year round. Climate control system refrigerant
Important safety notes The climate control system of your vehicle is
filled with refrigerant R
‑134a.
The instruction label regarding the refrigerant
type used can be found on the radiator cross
member.
! Only the refrigerant R‑134a and the PAG
oil approved by Mercedes-Benz may be
used. The approved PAG oil may not be
mixed with any other PAG oil that is not
approved for R-134a refrigerant. Other-
wise, the climate control system may be
damaged.
Service work, such as topping up refrigerant
or replacing components, may only be carried
out by a qualified specialist workshop. All
applicable regulations must be adhered to,
SAE standard J639 included. Always have work on the climate control sys-
tem carried out at a qualified specialist work-
shop.
Refrigerant instruction label Example: refrigerant instruction label
0043 Warning symbol
0044 Refrigerant filling capacity
0087 Applicable standards
0085 PAG oil part number
0083 Type of refrigerant
Warning symbol 0043advises you about:
R possible dangers
R having service work carried out at a quali-
fied specialist workshop
Filling capacities Missing values were not available at time of
going to print.
AMG vehicles Capacity
Refrigerant
PAG oil
All other models Capacity
Refrigerant
37.0 ± 0.4 oz
(1050 ± 10 g) PA
G oil 4.9 ± 0.4 oz
(140 ± 10 g) Se
rvi ce products and filling capacities
455Technical da ta Z