Page 32 of 350

29 Central locking system
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Locking and unlocking with remote control
Unlocking:
Press transmit button Œ. All turn signal lamps blink
once to indicate that the vehicle is unlocked.
The remote control can be programmed for two kinds of
unlocking modes (see below):
Selective unlocking mode –
Press transmit button Œ once to unlock driver’s
door and fuel filler flap.
Press transmit button Œ twice to unlock all doors,
fuel filler flap, and trunk.
Global unlocking mode –
Press transmit button Œ once to unlock all doors,
fuel filler flap, and trunk.
Notes:
If the trunk was previously locked separately, it will
remain locked, see page 37.
The presently active unlocking mode (selective or
global) can only be determined by unlocking the vehicle
with the remote control (see below for changing mode).If within 40 seconds of unlocking with the remote
control, neither door nor trunk is opened, the electronic
key is not inserted in the steering lock, or the central
locking switch is not activated, the vehicle will
automatically lock.
Locking:
Press transmit button ‹ once. All turn signal lamps
blink three times to indicate that the vehicle is locked.
If the turn signal lamps do not blink, a door or trunk is
not closed properly.
Note:
If the vehicle cannot be locked or unlocked by pressing
the transmit button, then it may be necessary to change
the batteries in the electronic key (if ok, battery check
lamp in electronic key will light briefly when pressing
transmit button) or to synchronize the remote control,
see pages 294 and 296.
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Page 38 of 350

35 Central locking system
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Central locking switch
1Locking
2Unlocking
The central locking switch is located in the center
console.
The doors and trunk can only be locked with the central
locking switch if both front doors are closed.
If the vehicle was previously locked with the central
locking switch, while in the selective remote control
mode, only the door opened from the inside is unlocked.If the vehicle was previously locked with the central
locking switch, while in the global remote control mode,
the complete vehicle is unlocked when a front door is
opened from the inside.
Notes:
If the vehicle was previously locked with the remote
control, the doors and trunk cannot be unlocked with
the central locking switch.
The fuel filler flap cannot be locked or unlocked with
the central locking switch.
If the vehicle has previously been locked from the
outside, opening a door from the inside will trigger the
alarm. To cancel the alarm, insert the electronic key in
the steering lock or press buttonŒ or‹ on the
electronic key.
Wa r n i n g !
When leaving the vehicle always remove the
electronic key from the steering lock, and lock
your vehicle. Do not leave children unattended in
the vehicle, or with access to an unlocked vehicle.
Unsupervised use of vehicle equipment may cause
serious personal injury.
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Page 56 of 350

53 Seats
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Multicontour seat (optional)
We recommend to adjust the multicontour seat in the
following order:
1Seat cushion depth
2Backrest bottom
3Backrest center
4Side bolster adjustmentSome models may be equipped with multicontour seats.
These seats have movable seat cushions, and inflatable
air cushions built into the backrest to provide additional
lumbar and side support.
The seat cushion movement and amount of backrest
cushion height and curvature can be continuously
varied with regulators (1, 2 and 3) after turning the
electronic key in steering lock to position 2.
The side bolsters of the backrest can be adjusted with
rocker switch (4):
•press to the right – increase side support,
•press to the left – decrease side support.
If the engine is turned off, the last cushion setting is
retained in memory, and automatically adjusts the
cushion to this setting when the engine is restarted.
1
234
P91.25-2025-26
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54 Seats
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Seat heater
The seat heaters can be switched on with the electronic
key in steering lock positions 1 or 2.Notes:
When in operation, the seat heater consumes a large
amount of electrical power. It is not advisable to use the
seat heater longer than necessary.
The seat heaters may automatically switch off if too
many power consumers are switched on at the same
time, or if the battery charge is low. When this occurs,
the indicator lamp in the switch will blink (both
indicator lamps blink during rapid seat heating mode).
The seat heaters will switch on again automatically as
soon as sufficient voltage is available.
If the blinking of the indicator lamps is distracting to
you, the seat heaters can be switched off.
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Page 58 of 350
55 Seats
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Vehicles without seat ventilation
The front seat heater switches are located in the center
console.Press switch to turn on seat heater:
1Normal seat heating mode. One indicator lamp in
the switch lights up.
2Rapid seat heating mode. Both indicator lamps in
the switch light up.
After approximately 5 minutes in the rapid seat
heating mode, the seat heater automatically
switches to normal operation and only one indicator
lamp will stay on.
Turning off seat heater:
If one indicator lamp is on, press upper half of switch.
If both indicator lamps are on, press lower half of
switch.
If left on, the seat heater automatically turns off after
approximately 30 minutes of operation.
P54.25-2036-26
12
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56 Seats
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Vehicles with seat ventilation (optional)
The front seat heater switches are located in the center
console.Rapid heating mode:
Press button (3) once.
Both red indicator lamps above the button light up.
The system switches over to normal heating mode
automatically after approximately 5 minutes.
Normal heating mode:
Press button (3) twice.
One red indicator lamp above the button lights up.
The seat heater will be automatically switched off after
approximately 30 minutes.
Turning off the heater:
Press the button (3) again.
The indicator lamps go out. The seat heater is switched
off.
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Page 85 of 350

82 Rear view mirrors
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Rear view mirrors
Inside rear view mirror
Manually adjust the inside rear view mirror.
Use your inside rear view mirror to determine the size
and distance of objects seen in the passenger-side
convex mirror.
Rear view mirror, automatic antiglare
Antiglare mode:
With the electronic key in steering lock position 2, the
mirror reflection brightness responds to changes in
light sensitivity.
With gear selector lever in position “R”, or with the
interior lamp switched on, the mirror reflection
brightness does not respond to changes in light
sensitivity.Note:
The automatic antiglare function does not react, if
incoming light is not aimed directly at sensors in the
inside rear view mirror.
The automatic antiglare function will not react for
example, if the rear window sun shade is in raised
position.
Wa r n i n g !
In the case of an accident liquid electrolyte may
escape the mirror housing when the mirror glass
breaks.Electrolyte has an irritating effect. Do not allow the
liquid to come into contact with eyes, skin,
clothing, or respiratory system. In cases it does,
immediately flush affected area with water, and
seek medical help if necessary.
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Page 130 of 350

127 Automatic climate control
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Air volume control for center air outlets, turn wheel
up to open.
2Air volume control for side air outlet and side
window defroster outlet.
To open side air outlets:
Turn wheel to position i.
To open defroster outlets:
Turn wheel to position l.
3Center air outlets, adjustable
4Side air outlet, adjustable
5Side defroster outlet
6Display and controlsThe system is always at operational readiness, except
when manually switched off.
The automatic climate control only operates with the
engine running.
The temperature selector should be left at the desired
temperature setting. The temperature selected is
reached as quickly as possible.
The system will not heat or cool any quicker by setting
a higher or lower temperature.
The automatic climate control removes considerable
moisture from the air during operation in the cooling
mode. It is normal for water to drip on the ground
through ducts in the underbody.
The desired interior temperature can be selected
separately for the left and right side of the passenger
compartment.
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