
44Keys, doors and windows
sunroof closes without safety functionenabled. To stop movement, release
the switch.
Comfort closing with the remote
control
The sunroof can be closed remotely
from outside the vehicle.
Press and hold button e to close the
sunroof.
Release the button to stop the
movement.
Initialising after a power failure
After a power failure, it may only be possible to operate the sunroof to a
limited extent. Have the system
initialised by a workshop.

Driving and operating151
For unlocking or locking the doors see
fault in radio remote control unit or
electronic key system 3 23.
Retained power off
The following electronic systems can
work until the driver's door is opened
or for 10 minutes after the ignition is
switched off:
■ Power windows
■ Sunroof
■ Power outlets
Power to the Infotainment system will continue to operate for 30 minutes
when ignition is off, regardless of
whether any door will be opened.Starting the engine
Vehicles with ignition switch
Manual transmission: operate clutch
and brake pedal.
Automatic transmission: operate
brake pedal and move selector lever
to P or N.
Do not operate accelerator pedal.
Diesel engine: turn the key to position 2 for preheating until control
indicator ! extinguishes.
Turn key briefly to position 3 and
release: an automatic procedure operates the starter with a short delay
until the engine is running, see
Automatic Starter Control.
Before restarting or to switch off the
engine, turn key back to position 0.
During an Autostop, the engine can
be started by depressing the clutch
pedal 3 153.
Vehicles with power button
Manual transmission: operate clutch
and brake pedal.

Vehicle care235
No.Circuit16Vacuum pump, mass air flow
meter, water in fuel sensor, DC
transformer17–18Adaptive forward lighting19Adaptive forward lighting20Fuel pump21Rear power windows22ABS23Variable effort steering24Front power windows25Power outlets26ABS27Electric parking brake28Heated rear window29Left power seat30Right power seatNo.Circuit31Air conditioning system32Body control module33Heated front seats34Sunroof35Infotainment system36–37Right high beam38Left high beam39–40–41Vacuum pump42Radiator fan43Vehicle battery, DC transformer (only on vehicles with stop-start
system)44Headlamp washer system45Radiator fanNo.Circuit46Terminal 87, main relay47Lambda probe48Fog lights49Right low beam50Left low beam51Horn52Ignition53Ignition, ventilated front seats54Ignition55Power windows, mirror folding56Windscreen washer57–58–59Diesel fuel heating, emission
control system60Mirror heating61Mirror heating

238Vehicle care
No.Circuit1Central locking system, Power
tailgate2Trailer module3–4–5Trailer socket6Steering wheel heating7–8Trailer socket9Sunroof10Central locking system, tailgate11–12–13–14–15Power tailgate lock16Air conditioning systemNo.Circuit17–18–19Side obstacle detector20Side obstacle detector, venti‐
lated front seats21Active damping system, High beam assist, Cruise control,
Traffic sign assistant, Lane
departure warning, trailer
module22Anti-theft alarm system23All-wheel drive, anti-theft alarm
system24–25–26–27–28–

Vehicle care239
No.Circuit29Trailer module, transportation
fuse30Side obstacle detector31–32–33–34Sunroof35–36–37–Vehicle tools
Tools
Vehicles with tyre repair kit
The tools and the towing eye are
located together with the tyre repair
kit in a tool box below the floor cover
in the load compartment.
Vehicles with spare wheel
The jack with wheel wrench, the tools,
an extension bolt for securing a
damaged wheel and the towing eye
are placed in the tool box below the
spare wheel in the load compartment. Spare wheel 3 250.

258Vehicle care
If using a vehicle wash, comply with
the vehicle wash manufacturer's
instructions. The windscreen wiper and rear window wiper must be
switched off. Remove antenna and
external accessories such as roof
racks etc.
If you wash your vehicle by hand,
make sure that the insides of the
wheel housings are also thoroughly
rinsed out.
Wax painted parts of the vehicle
regularly.
Clean edges and folds on opened
doors and the bonnet as well as the
areas they cover.Caution
Always use a cleaning agent with
a pH value of 4 to 9.
Do not use cleaning agents on hot surfaces.
Do not clean the engine compartmentwith a steam-jet or high-pressure jet
cleaner.
Thoroughly rinse and leather-off the vehicle. Rinse leather frequently. Use
separate leathers for painted and
glass surfaces: remnants of wax on
the windows will impair vision.
Have the door hinges of all doors
greased by a workshop.
Do not use hard objects to remove
spots of tar. Use tar removal spray on
painted surfaces.
Exterior lights
Headlight and other light covers are
made of plastic. Do not use any
abrasive or caustic agents, do not use an ice scraper, and do not clean them
dry.
Polishing and waxing Wax the vehicle regularly (at the
latest when water no longer beads).
Otherwise, the paintwork will dry out.
Polishing is necessary only if the paint
has become dull or if solid deposits
have become attached to it.
Paintwork polish with silicone forms a
protective film, making waxing
unnecessary.Plastic body parts must not be treated with wax or polishing agents.
Windows and windscreen wiper blades
Use a soft lint-free cloth or chamois
leather together with window cleaner and insect remover.
When cleaning the rear window from
inside, always wipe in parallel to the
heating element to prevent damage.
For mechanical removal of ice, use a
sharp-edged ice scraper. Press the
scraper firmly against the glass so
that no dirt can get under it and
scratch the glass.
Clean smearing wiper blades with a
soft cloth and window cleaner.
Sunroof Never clean with solvents or abrasive
agents, fuels, aggressive media
(e.g. paint cleaner, acetone-
containing solutions etc.), acidic or
highly alkaline media or abrasive
pads. Do not apply wax or polishing
agents to the sunroof.

317
Parking lights ............................. 129
Performance .............................. 271
Performing work ........................214
Pollen filter ................................. 146
Power button .............................. 149
Power outlets ............................... 88
Power seat adjustment .................50
Power windows ............................ 39
Preheating ................................. 104
Puncture ..................................... 247
Q
Quickheat ................................... 145
R Radio Frequency Identification (RFID) ..................................... 313
Radio remote control ...................21
Reading lights ............................ 130
Rear cross traffic alert ................196
Rear floor storage cover ..............72
Rear fog light ............................. 106
Rear fog lights ........................... 129
Rear seats .................................... 54
Rear view camera ...................... 194
Rear window wiper/washer .......... 86
Recommended fluids and lubricants ........................ 262, 266
Refuelling ................................... 205
Retained power off .....................151Reversing lights .........................129
Ride control systems ..................166
Roller blinds ................................. 42
Roof .............................................. 42
Roof load ...................................... 80
Roof rack ..................................... 79
S
Safety belts ................................... 54
Safety net .................................... 76
Seat adjustment ....................... 6, 47
Seat belt ........................................ 8
Seat belt reminder .....................100
Seat belts ..................................... 54
Seat position ................................ 47
Selector lever ............................. 158
Service ............................... 147, 261
Service display ............................ 98
Service information ....................261
Side airbag system ......................59
Side blind spot alert ....................191
Sidelights .................................... 122
Side turn signal lights ................230
Smartphone controller ................116
Spare wheel ............................... 250
Speed limiter....................... 106, 172
Speedometer ............................... 96
Starting and operating ................149
Starting off ................................... 17
Starting the engine ....................151Steering...................................... 148
Steering wheel adjustment ......9, 82
Steering wheel controls ...............82
Stop-start system........................ 153
Storage ......................................... 67
Storage compartments .................67
Sunroof ........................................ 42
Sunvisor lights ........................... 131
Sun visors .................................... 41
Symbols ......................................... 4
T
Tachometer ................................. 97
Tail lights ................................... 227
Three-point seat belt .................... 55
Tools .......................................... 239
Top-tether fastening eyes ............66
Tow bar....................................... 209
Towing ................................ 209, 254
Towing another vehicle .............256
Towing equipment .....................210
Towing the vehicle .....................254
Traction Control system ............. 166
Traction Control system off......... 104
Traffic sign assistant ...........107, 198
Trailer coupling ........................... 209
Trailer stability assist .................212
Trailer towing ............................. 210
Transmission ............................... 17
Transmission display .................157