Problems with the key/remote control
Problem Possible causes/consequences and
0004 Solutions
It is no longer possible
to lock the vehicle
using the remote
control.
The turn signals do not
flash when the vehicle
is locked. The doors are not closed properly.
X
Close the doors properly and lock the vehicle again. The central locking system has malfunctioned.
X
Lock the vehicle using the folding key (Y page 64).
X Have the central locking system checked as soon as possible
at a qualified specialist workshop. It is no longer possible
to lock or unlock the
vehicle using the
remote control. The key battery is weak or discharged.
X
Point the remote control at the driver's door handle from very
close range and press the 0009or0008 button.
If this does not work:
X Replace the key battery (Y page 66).
Or
X Lock the vehicle using the folding key (Y page 64). The remote control is faulty.
X
Lock the vehicle using the folding key (Y page 64).
X Have the key checked at a qualified specialist workshop. The key cannot be
turned in the ignition
lock. The steering lock has jammed mechanically.
X
Remove the key and insert it again into the ignition lock. Turn
the steering wheel from side to side while doing so. The engine cannot be
started using the key. The on-board voltage is too low.
X
Switch off all non-essential consumers, such as interior lighting,
and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 254).
Or
X Jump-start the vehicle (Y page 267).
Or
X Consult a qualified specialist workshop. You have lost a key. X
Have the key deactivated at a qualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the mechanical locks replaced. 68
KeyOpening and closing
X
To open: for the left-hand side of the
vehicle, tur nthumbwheel 0005or for the
right-hand side of the vehicle,
thumbwheel 0006of the air vents clockwise.
X To close: for the left-hand side of the
vehicle, turn thumbwheel 0005or for the
right-hand side of the vehicle,
thumbwheel 0006of the air vents counter-
clockwise. Adjusting the air vents in the roof duct
! Always leave at least one air vent open.
If the rear-compartment air conditioning is
switched on and all the air vents are closed,
the air-conditioning system may be
damaged. On vehicles with rear-compartment air
conditioning, adjustable air vents are
integrated into the roof duct.
X
To adjust the airflow: open or close the
air flap in air vents 0005as needed.
X To adjust the air distribution: turn air
vent 0005to the desired position. Operating the auxiliary heating
system
Important safety notes
G
DANGER
If the exhaust pipe is blocked or adequate
ventilation is not possible, poisonous gases such as carbon monoxide (CO) may enter the
vehicle. This is the case, for example in
enclosed spaces or if the vehicle gets stuck
in snow. There is a risk of fatal injury.
Switch the auxiliary heating off in enclosed
spaces without extraction systems, e.g. in
garages. If the vehicle is stuck in snow and
you have to leave the auxiliary heating
running, keep the exhaust pipe and the area
around the vehicle free of snow. To ensure an
adequate supply of fresh air, open a window
on the side of the vehicle that is not facing
into the wind. G
WARNING
When the auxiliary heating is switched on,
parts of the vehicle can become very hot, e.g.
the exhaust system. If flammable materials
such as leaves, grass or twigs remain in
contact with hot parts of the exhaust system
for a prolonged period, they could ignite.
There is a risk of fire.
When the auxiliary heating is switched on,
make sure that no flammable material can
come into contact with hot vehicle
components.
! Switch on the auxiliary heating system at
least once a month for approximately
10 minutes. The auxiliary heating could
otherwise be damaged.
! Make sure that the flow of hot air is not
blocked. The auxiliary heating will
otherwise overheat and switch off.
Your vehicle may be equipped with either an
auxiliary hot-water heater or an auxiliary
warm-air heater. Adjustment and operation of
the:
R hot-water auxiliary heater is done via the
on-board computer and with the auxiliary
heating button in the control panel
(Y page 119) or with the remote control
(Y page 121).
R auxiliary warm-air heater is done via the
timer above the overhead control panel
(Y page 122). 118
Operating the auxiliary heating systemClimate control
Operation with the remote control
Important information You can switch the auxiliary heating on/off
and set the operating duration using the
remote control. You can use up to 4 remote
control units on the vehicle. These must be
synchronized for the receiver in your vehicle
(Y page 122).
The remote control has a maximum range of
approximately 600 meters. This range is
reduced by:
R sources of interference
R solid objects between the remote control
and the vehicle
R the remote control being in an unfavorable
position in relation to the vehicle
R transmitting from an enclosed space
Overview of the remote control 0005
Indicator lamp
0006 To confirm settings
0026 To switch the remote control on/off, set
the operating duration or end or cancel
settings
Indicator lamp 0005lights up in various ways to
show differen toperating modes: Signaling Meaning
Lights up red Remote control switched
on
Data transfer Signaling Meaning
Flashes red Auxiliary heating switched
off
Lights up
green Auxiliary heating switched
on
Flashes green Change operating duration
active
Flashes
alternately
red and green Remote control in
synchronizing mode
i
When the remote control battery is weak,
indicator lamp 0005flashes red rapidly.
Replace the remote control battery
(Y page 126).
You can find further information on the lamp
status in the "Problems with the auxiliary
heating" section (Y page 128).
Switching the remote control on/off The remote control switches to standby mode
after 10 seconds. Indicator lamp
0005goes out.
X To switch on: press and hold the 0002
button until indicator lamp 0005lights up red.
If ac onnection between the remote control
and the receiver in the vehicle has been
established and indicator lamp 0005:
R flashes red, the auxiliary heating is
switched off.
R lights up green, the auxiliary heating is
switched on.
X To switch off: press and hold the 0002
button until indicator lamp 0005goes out.
Switching the auxiliary heating on/off X
Switch on the remote control.
X To switch on: when indicator lamp 0005
flashes red, press the 000Abutton.
During data transmission, indicator
lamp 0005lights up red. Operating the auxiliary heating system
121Climate control Z
When indicato
rlamp 0005lights up green, the
auxiliary heating is switched on.
X To switch off: when indicator lamp 0005
lights up green, press the 000Abutton.
During data transmission, indicator
lamp 0005lights up red.
When indicator lamp 0005flashes red, the
auxiliary heating is switched off.
Changing the operating duration X
Switch on the remote control.
X When indicator lamp 0005flashes red, press
0002 and000A simultaneously.
Indicato rlamp 0005flashes green.
X Press the 0002buttonrepeatedly until the
desired operating duration is shown.
R 20 minutes
Indicator lamp 0005flashes green twice.
R 30 minutes
Indicator lamp 0005flashes green three
times.
R 40 minutes
Indicator lamp 0005flashes green four
times.
R 60 minutes
Indicator lamp 0005flashes green six
times.
X Press the 000Abutton.
During data transmission, indicator
lamp 0005lights up red.
If indicator lamp 0005emits two long, green
flashes, the selected operatin gduration is
stored.
i If no adjustmen tis made, indicator
lamp 0005flashes six times and the remote
control goes into standby mode. Synchronizing the remote control X
Press the 0020auxiliary heating button in
the control panel (Y page 119) for longer
than 10 seconds.
When you press and hold the 0020button,
the red indicator lamp lights up in the
button.
When the red indicator lamp in the 0020
button flashes, the receiver in the vehicle
is ready for synchronizing.
X Press and hold the 0002remote control
button until indicator lamp 0005lights up red.
If there is an active connection between the
remote control and the receiver, indicator
lamp 0005flashes alternately red and green.
The remote control is in synchronizing
mode.
i If you press the 0002button againont he
remote control after starting
synchronization, you will only synchronize
this remote control unit with the receiver.
Any other remote control units that were
synchronized will be cleared. Indicator
lamp 0005flashes alternately red and green
(very slowly).
X Press the 000Abutton on the remote
control.
During data transmission, indicator
lamp 0005lights up red.
When remote control indicator lamp 0005
emits two long green flashes, the selected
operating time is synchronized. The
indicator lamp in the 0020auxiliary heating
button goes out. Operation with the timer
Important safety notes This is only for vehicles with a hot-water
auxiliary heater.
G
DANGER
If a switch-on time has been selected, the
auxiliary heating switches on automatically. 122
Operating the auxiliary heating systemClimate control
At an outside temperature of up to
39 ‡(4 †) the fuel-fired heate
rbooster
system heats the vehicle interior as quickly
as possible when the engine is running.
The auxiliary heating automatically switches
to heater booster mode after the engine is
started.
At an outside temperature above 39 ‡(4 †)
the auxiliary heating system and the heater
booster function switch off automatically.
If you switch off the engine without switching
off the heater booster function, the system
will be switched on the next time the engine
is started (memory function).
i Switch the auxiliary heating on or off with
the 0020 button (Y page 119).
X To switch on/off: press the0013switch.
If the indicator lamp in the button lights up,
the heater booster function is switched on.
After switching off, the auxiliary heating
operates for about another three minutes and
then switches off automatically. Replacing the remote control battery
G
WARNING
Batteries contain toxic and corrosive
substances. If batteries are swallowed, it can
result in severe health problems. There is a
risk of fatal injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately. H
Environmental note Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately
and recycled to protect the
environment.
Dispose of batteries in an
environmentally friendly
manner
.Take discharged
batteries to a qualified
specialist workshop or a
special collectio npoint for
used batteries.
If the indicator lamp on the remote control
flashes red rapidly, the remote control battery
is discharged. You should replace the remote
control battery.
You need a battery of the type CR2430, which
can be obtained at any qualified specialist
workshop. X
Remove battery cover 0006using a suitable
implement, e.g. a coin, by turning it
counter-clockwise.
X Check the seal on battery cover 0006for
damage and, if necessary, replace.
X Remove old batteries 0026.
X Insert new, clean battery 0026into the
battery tray with the positive pole facing
upwards. Use a lint-free cloth to do so. 126
Operating the auxiliary heating systemClimate control
X
Position battery cover 0006so that mark 0005
on the raised area points between two
recesses 0025.
X Turn battery cover 0006using a suitable
implement, e.g. a coin, clockwise to the
stop.
X Check all the functions of the remote
control (Y page 121). Operating the auxiliary heating system
127Climate control Z
Problems with the auxiliary heating
Problem Possible causes/consequences and
0004 Solutions
The indicator lamp on
the remote control
flashes red rapidly. The remote control battery is discharged. Data transmission is not
possible.
X
Replace the remote control battery (Y page 126).The indicator lamp on
the remote control
flashes red and green in
rapid succession. There is no connection between the remote control and the
receiver in the vehicle.
X
Change your position in relation to the vehicle, e.g. hold the
remote control higher or to the side.
X Move closer.
If you cannot establish aconnection and the auxiliary heating is
switched on, it can then only be deactivated using the 0020button
(Y page 119). The indicator lamp on
the remote control
flashes red and green in
rapid succession. Several remote controls are being used at the same time.
X
Switch on the remote control again after a short while
(Y page 121). The indicator lamp on
the remote control
flashes red and green in
rapid succession. The remote control is not synchronized.
X
Synchronize the remote control (Y page 122).The indicator lamp on
the remote control
slowly flashes red and
green alternately. The remote control is being synchronized.
X
Wait until the remote control synchronization process is
complete (Y page 122). The remote control for
the auxiliary heating
cannot be switched on. The remote control battery is discharged.
X
Replace the remote control battery (Y page 126).The auxiliary heating
does not switch on. The outside temperature is above 39
‡(4† ). The auxiliary heating
switches off automatically. The auxiliary heating
switches off
automatically and/or
cannot be switched on. The fuel tan
kis less than 0002full. The auxiliary heating switches off
automatically.
X Refuel at the nearest gas station.
X Then, start the auxiliary heating several times until the fuel lines
are full. 128
Operating the auxiliary heating systemClimate control