General note s. .............................. .1 18
Q QR code
Mercedes-Ben zG uide Ap p. ................ 1
Rescue car d. ................................... .2 8
Qualified specialist workshop ........... 27
R RACE TIMER (on-board computer,
Mercedes-AMG vehicles) .................. 175
Radio
Selecting as tation ........................ .1 68
see Digita lO perator's Manual
Radio mode
see also Digita lO perator's Man-
ua l. ................................................ .2 11
Radio-wave reception/transmis-
sio nint he vehicle
Declaratio nofc onformity ................ 26
Readin gl amp ....................................... 99
Rear fog lamp
Display message ............................ 189
Switching on/off .............................. 96
Rear lamps
see Lights
Rear vie wc amera
Cleaning instructions ..................... 242
Display in the multimedi as ystem .. 155
Function/notes ............................ .1 54
Switching on/off ........................... 155
Rear window defroster
General notes ................................ 111
Problem (malfunction) ................... 112
Switching on/off ........................... 111
Rear-vie wm irror
Anti-glare (manual ). ......................... 90
Dipping (automatic) ......................... 92
Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 294
Refueling
Fuel gauge ....................................... 32
Important safety notes .................. 129
Refueling proces s. ......................... 130
see Fuel Remote control
Programming (garage door
opener) .......................................... 229
Replacing bulbs
High-beam headlamps ................... 100
Important safety notes .................... 99
Installing/removing the cover
(front wheel arch) .......................... 100
Low-beam headlamps .................... 100
Overview of bul bt ype s. ................. 100
Reportin gs afety defects .................... 27
Rescue card ......................................... 28
Reserve (fue lt ank)
see Fuel
Reserve fuel
Display message ............................ 192
Warning lamp ................................. 207
Residual heat (climate control) ....... .1 12
Restrain ts ystem
Display message .............. .............. 185
Introdu cti on ..................................... 38
Warning lamp ................................. 206
Warning lamp (function) ................... 38
Reverse gear
Engaging (automatic transmis-
sion) ............................................... 123
Reversibl ef loor panel (trunk) .......... 221
Reversing feature
Side windows ................................... 74
Reversing lamps (display mes-
sage) ................................................... 189
Roadside Assistanc e( breakdown) .... 25
Roof
Display message ............................ 200
Important safety notes .................... 77
Opening/closing (with roof
switch) ............................................. 78
Opening/closing (with SmartKey ). ... 79
Overview .......................................... 77
Problem (malfunction) ..................... 83
Relocking ......................................... 79
Roof carrier ........................................ 221
Roof switch .......................................... 78
Route guidance
see also Digita lO perator's Man-
ua l. ................................................ .2 11
Route guidance active ..................... .1 67Index 15
SmartKey
Important safety notes
G WARNING
If children are left unsupervised in the vehicle,
they could: R
operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they: R
release the parking brake R
shift the automatic transmission out of park
position PR
start the engine
There is ar isk of an accident and injury.
Never leave children or animals unattended in
the vehicle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. This
also applie stom obile phones if the "Digital
Car Key in smartphone" function is activated
via the Mercedes me connect web app.
G WARNING
If you attach heavy or large object stot he
SmartKey, the SmartKey could be uninten-
tionally turned in the ignition lock. This could
cause the engine to be switched off. There is a
risk of an accident.
Do not attach any heavy or large object stot he
SmartKey. Remove any bulky key rings before
insertin gt he SmartKey into the ignition lock.
! Keep the SmartKey away from stron gm ag-
netic fields. Otherwise, the remote control
function could be affected.
Strong magnetic fields can occur in the vicin-
ity of powerful electrical installations.
Do not keep the SmartKey: R
with electronic devices, e.g. am obile phone
or another SmartKey R
with metallic objects, e.g. coins or metal foil R
inside metallic objects, e.g. am etal case
This can affect the functionality of the Smart-
Key. SmartKey functions
C
7 Locks the vehicle D
T Unlock st he trunk lid