Page 30 of 185

30n
Keys Central locking system The key set1 The master keys with remote control
determine the functions of the Key
Memory, refer to page 61.
You can mark individual keys for
subsequent identification by applying
the colored decals that you received
when accepting delivery of your
vehicle.
There is an extended-life battery
in every master key which is
charged automatically in the ignition
lock as you drive.
For this reason, if you have a master
key that is otherwise not used, use that
key approx. once every year while
driving for an extended period. This will
charge the battery, refer also to
page 32.< 463de023
2 Spare key for storage in a safe place,
such as in your wallet. This key is not
intended for continuous use
3 Door and ignition key
The lock for the glove compartment
cannot be operated with this key.
This is recommended for valet
parking, for instance.
The concept The central locking system is ready for
operation as soon as you close the front
doors. The system engages and
releases the locks on the
>doors
>liftgate/tailgate
>fuel filler door.
The central locking system can be
operated
>from outside via the driver's door lock
as well as via the remote control
>from inside via the button for the
central locking system.
If the system is locked from inside, the
fuel filler door remains unlocked, refer
to page 35.
When the system is actuated from
outside of the vehicle, the anti-theft
system is actuated simultaneously. The
alarm system is also armed or
disarmed.
In the event of an accident, the central
locking system unlocks automatically
(only those doors which were not
locked separately with the safety lock
buttons), refer to page 35. In addition,
the hazard warning flashers and interior
lamps come on.
Page 35 of 185

35n
OverviewControlsMaintenanceRepairsDataIndex
Opening and closing Ð from the insideYou can operate the central locking
system with this button when the
driver's door is closed. The doors and
liftgate are unlocked or locked only.
However, the anti-theft system is not
activated. Also, the fuel Þller door
remains unlocked to allow refueling.
If only the driver's door was
unlocked from the outside and
you press the button
>all other doors, the tailgate/liftgate
and the fuel filler door will be
unlocked when the driver's door is
opened
>the driver's door will be locked again
when it is closed.< 530de220
To unlock and open the doors >Either unlock the doors together with
the button for the central locking
system and then pull the door handle
above the armrest
or
>pull the release handle for each door
twice: the first pull unlocks the door,
and the second one opens it.
To engage the locks >Use the central locking button to lock
all of the doors simultaneously,
or
>press down the individual safety lock
buttons. The fuel filler door remains
unlocked. As an added design
feature to prevent the driver from
being inadvertently locked out of the
vehicle, the driver's safety lock
button will not engage as long as the
door is open.
When the vehicle is moving, do
not lock the doors with the safety
lock buttons. Doors locked in this
manner would not unlock automatically
in the event of an accident.
Since passengers or animals remaining
in the vehicle might be able to lock the
doors from the inside, take the vehicle's
keys with you so that the vehicle can be
opened again from the outside at any
time.<
Page 178 of 185

Everything from A to ZEngine oil143t, 144
consumption143
grades144
level19
pressure18
Estimated time of arrival88
Exterior mirrors53
Exterior rearview mirrors,
automatic dimming
feature54FFailure of an electrical
accessory163t
Filling the windshield washer
reservoir143t
First-aid kit23t
Fittings, tow-starting and
towing166t
Flashlight116
Flat tire99, 136, 157t
Fog lamps101
bulb replacement155t
Folding rear backrest122
Footbrake135
Front area lighting102
Front fog lamps101
Front seat adjustment44Frost protection,
radiator145
Fuel25
capacity173
display75
gauge75
quality25
specifications25
Fuel consumption88
average88
Fuel filler door24
electrical malfunction24
Fuses163t
GGarage-door opener113
Gasoline25
General driving notes134
Glasses compartment118
Glove compartment116
Gross vehicle weight172
Ground clearance133HHandbrake64
Hands-free system117
Hazard warning flashers14
Hazard warning triangle23HDC (Hill Descent
Control)94
Head restraints47
Headlamp covers,
care154t
Headlamp flasher69
Headlamp washer
system70, 143
Heated seats51
Heated steering wheel53
Heating and
ventilation103, 106
Heating while stopped110
Heavy cargo127
Height171
Height adjustment
seats46
steering wheel52
High beams21, 101
bulb replacement153t
High-mount brake lamp156
Hill Descent Control
(HDC)94
Holder for cans, refer to
beverage holder117
Hood141t
Hood release141t
Hydraulic Brake Assistant
refer to DBC20
IIce warning74
Identification, tires139
Ignition key30
Ignition lock62
Imprint4
Independent ventilation
system85, 112
switching on and off85
Indicator lamps18
Inflation pressures,
tires136
monitoring98
INSPECTION76
Instrument cluster15, 17
Instrument lighting101
Instrument panel15, 17
Intensive cleaning
system70
Interior lamps102
remote control33
Interior mirror54
Interior motion sensor40
Interior rearview mirror,
automatic dimming
feature54
Interlock62
Intermittent wipe69
Page 179 of 185

Everything from A to Z
179n
OverviewControlsMaintenanceRepairsDataIndex
JJack157, 158, 160
Jump-starting164tKKey Memory61
Keys30
Keys with radio remote
control30
Kickdown mode67LLamps and bulbs153
Lashing eyes38, 127
LATCH child-restraint
system60
Lead-free gasoline25
Length171
License plate lamps
bulb replacement156t
Liftgate36
opening from the
inside36
radio control operation33
release following an
electrical
malfunction36t, 38t
Lighter118
LIGHTS ON warning100
Load-securing devices127
Louvers103, 106Low beams100
automatic100
bulb replacement153t
Low-fuel warning lamp75
Lug bolts160
Lug wrench157t
Luggage net38
Luggage straps38
Lumbar support46
MM+S radial tires140
Maintenance76t, 147t
Maintenance System147
Malfunction displays77t
Manual operation
doors31t
fuel filler door24
liftgate36t
sliding/tilt sunroof43t
tailgate38t
Manual transmission65
Master key30
Maximum cooling109
Mechanical seat45
Memory50
driver's seat50
mirrors50
steering wheel50
Messages concerning
system malfunctions77Microfilter105, 111
MID (Multi-Information
Display)82
digital clock83
Mirror defrosting53
Mirror memory50
Mirrors53
Modifications,
technical10, 148
Monitoring inflation
pressure, tires98
Moonroof42
Multifunction buttons,
steering wheel22
Multi-Information Display
(MID)82
digital clock83
NNavigation system, refer to
the separate Owner's
ManualOOBD interface socket149
Odometer74
Oil
additives144
consumption144t
dipstick144t
grades144Oil change interval, refer to
the Service and Warranty
Information Booklet (US
models) or to the Warranty
and Service Guide Booklet
(Canadian models)
Oil level19
indicator lamp19
Oil pressure, indicator
lamp18
OILSERVICE76
Onboard computer, refer to
the separate Owner's
Manual
Onboard Diagnostic (OBD)
system149
Onboard tool kit152t
Opening and closing
from the inside35
from the outside31
using the key31
using the remote
control32
Outlets, ventilation103, 106
Outside temperature
display74
in the computer80