Automatic air conditioner
- 1 - Left adjustable deflector
- 2 - Fixed middle left deflector
- 3 - Air supply regulator for middle left deflectors
Opening: turn the knob up.
: Adjustable middle deflector fully open,
: Middle vents open.
- 4 - The temperature regulator of the air leaving the middle deflectors
To decrease the temperature: turn the knob in the direction of the blue marking.
Automatic mode: turn the regulator to A. The control lamp above the regulator lights up. The air supply and the temperature of the middle deflectors are automatically regulated.
- 5 - Air supply regulator for the right middle deflectors
Opening: turn the knob up.
: Adjustable middle deflector fully open.
: Adjustable and fixed middle deflectors open.
- 6 - Adjustable middle right deflector
- 7 - Fixed middle right deflector
- 8 - Defrost deflector side glass
- 9 - Adjustable side deflector
- 10 - Air supply regulator for the side deflector
Opening: turn the knob outward.
: Side deflector fully open.
: Side deflector and deflector on the door are open.
- 11 - Deflector on the door
- 12 - Display and keyboard
Note. For good ventilation to prevent drafts, the damper knob on the ventilation deflectors (1, 6, 9) fix in a certain position.
Display and keyboard
- 1 — Defrosting glasses
- 2 - Rear window heating system (below in this section).
- 3 — The mode of use of residual heat of the engine
- 4 - On / Off.
- 5 - Air distribution for the right side (automatically, manually)
- 6 - Economy mode (without cooling)
- 7 - Toggle temperature switch, on the right
- 8 — the rocker switch of air supply (automatically, manually)
- 9 - Display
The indication on the display is carried out depending on the ambient light, black numbers on a light background (afternoon), or vice versa, light numbers on a black background (at night).
- 10 - Toggle temperature switch, left
- 11 - Air circulation mode
- 12 - Air distribution for the left side (automatically, manually)
- 13 - Activated carbon filter
In automatic mode, the automatic air conditioner performs cooling or heating depending on the intensity of the sun, the outside temperature and the desired temperature in the vehicle interior. When using the function «Engine residual heat utilization mode» heating or ventilation of the vehicle interior can also be performed with the engine off.
If economy mode is selected, the cooling system does not work.
Change the set temperature only in small steps. The automatic air conditioner can be installed for the left and right sides separately.
The set temperature is reached as quickly as possible and kept constant.
General recommendations for automatic air conditioning
There is a danger of an accident!
Visibility can be significantly reduced due to fogging of the windows if modes other than those recommended by us are selected.
The dust filter completely traps pollen and dust particles up to a certain value.
If the passenger compartment is heated by the sun, air it out quickly before driving.
The locker between the front seats can be ventilated. Ventilation locker on the center console under the armrest (below in this section).
Note. The ventilation openings in the space between the rear seatback and the rear window must not be blocked.
Keep the air inlets on the hood clear of snow.
Condensation may form on the underside of the vehicle.
In the event of a refrigerant leak, the A/C compressor will automatically shut down to protect against damage. The cooling system no longer works. Economy mode cannot be disabled. In this case, contact one of the service stations «Mercedes-Benz» to test the automatic air conditioner.
Environmental note!
The automatic air conditioner uses R134A refrigerant. This refrigerant does not harm the ozone layer.
Basic position of controls - in automatic mode
There are 3 options for automatic mode:
- Automatic air supply
- Automatic air distribution left and right
- Automatic mode of medium deflectors
We recommend that you turn on all 3 automatic mode functions:
- The air supply and distribution are controlled automatically.
- Set the temperature toggle switches on the left and right to 22°C.
- In this way, the most pleasant temperature in the car is achieved.
Automatic air supply mode: Press the air supply toggle switch on A. The display shows «AUTO»
Automatic air distribution mode: Press and lock both knobs .
The symbols , and are no longer visible.
Eco mode and air recirculation functions are disabled.
At the same time, the automatic fan mode is activated.
Special provisions - choose only for a short time
Manual regulation of air distribution
Press the handle.
The handle slides out, the symbols , and are visible.
Turn the knob according to the required air distribution.
Air outlet from the middle and side vents, vents on the doors and at the windshield.
Air outlet from the middle and side vents on the doors and at the windshield.
Air outlet from the middle and side vents, vents on the doors and in the footwell.
Return to automatic mode: Press and lock the knob.
The symbols , and are no longer visible.
Manual air supply control
Press the air supply toggle switch up or down. 7 fan stages can be selected.
Defrosting glasses
Press the button.
The display shows .
The fan switches to a higher stage and the heated air is directed to the defrost vents on the side windows and windshield.
Pressing the button again switches back to the previously selected mode.
Fogging windows from the inside
If necessary, turn off economy mode: press the button.
The control LED on the button goes out.
If necessary, turn off the air circulation mode: press the button.
The control LED on the button goes out.
Set the air distribution on the left and right manually upwards.
Set the air supply manually to the maximum fan level.
Raise the temperature setting.
Open the side vents and turn on the side windows.
Fogging the windshield from the outside
Turn on the windshield wiper.
Press and lock both handles .
The symbols , and are no longer visible.
Air circulation mode
Turn on the air circulation mode:
The control LED on the button is off.
Briefly press the button.
The control LED on the button lights up.
Switching off the air circulation mode:
The control LED on the button lights up.
Briefly press the button.
The control LED on the button goes out.
Switching on the air circulation mode and activating comfort closing:
The control LED on the button is off.
Press the button for more than 2 seconds, the side windows and the sliding and lifting sunroof close. The control LED on the button lights up.
Switching off the air circulation mode and activating comfort opening:
The control LED on the button is on. Press the button for more than 2 seconds, the side windows and the sliding and lifting sunroof move to the position they were in before closing.
If, after convenience closing, a window is manually lowered or a sliding and lifting sunroof is opened, comfort opening does not reach the position they were in before closing.
There is a danger of an accident!
At outdoor temperatures below 5°C, select the air circulation mode only for a short time, otherwise the windows may fog up.
Switching from the air circulation mode to the outdoor air supply mode is carried out automatically:
- after 30 minutes at an outside temperature above approximately 5°C,
- after 5 minutes at an outside temperature below approximately 5°C,
- after 5 minutes if economy mode was selected.
At high outside temperatures, automatic switching to air circulation mode takes place. Approximately 30 minutes later, partial fresh air supply starts.
Activated carbon filter with air circulation taking into account the external exhaust gas content
The filter significantly reduces the concentration of harmful substances and largely retains odors.
Automatic switching to air circulation mode is performed if the concentration of carbon monoxide in the outdoor air has increased (SO) or nitric oxide (NOx).
The air recirculation mode taking into account the external content of the exhaust gas is not possible if the economy mode is selected
or the outdoor temperature is below 5°C.
Activation of the carbon air filter and air circulation, taking into account the pollution of the outside air by exhaust gases:
The control LED on the button is off. Briefly press the button. The control LED on the button lights up.
Switching off the carbon filter and air circulation, taking into account the pollution of the outside air by exhaust gases:
The control LED on the button lights up.
Briefly press the button.
The control LED on the button goes out.
Switching on the charcoal filter and air circulation, taking into account the pollution of the outside air by exhaust gases, and activating comfort closing:
The control LED on the button is off. Press the button for more than 2 seconds, the side windows and the sliding and lifting sunroof close. The control LED on the button lights up.
Switching off the charcoal filter and air circulation, taking into account the pollution of the outside air by exhaust gases, and activating comfort opening:
The control LED on the button is on. Press the button for more than 2 seconds, the side windows and the sliding and lifting sunroof move to the position they were in before closing.
If, after convenience closing, a window is manually lowered or a sliding and lifting sunroof is opened, comfort opening no longer reaches the position they were in before closing.
Function «Engine residual heat utilization mode»
In function «Engine residual heat utilization mode» heating or ventilation of the car interior with the engine off is carried out in an automatic air conditioner.
The air supply is set automatically.
Before switching on: turn the electronic key in the ignition lock to position 1 or 0 or remove it.
Switching on the mode of using the residual heat of the engine: press the button.
The display shows «REST».
Switching on is not possible if the battery is not sufficiently charged.
Auto power on:
- if the electronic key in the ignition switch is turned to position 2.
- in about 30 minutes (with activated function «Engine residual heat utilization mode» on rear air conditioner: after approx. 15 minutes),
- if the battery voltage drops.
Note. When the operating voltage of the battery drops, the display of the automatic air conditioner takes some time before the function is turned off «Engine residual heat utilization mode» the battery symbol is displayed.
When the independent heater/ventilation is switched on, the function «Engine residual heat utilization mode» cannot turn on.
Economy mode
Power on: press the button.
The control LED on the button lights up.
The cooling system does not work and air drying is not performed.
Pressing the button again will reactivate the previously selected mode.
Eco mode may fog up the windows, so we do not recommend this mode.
Switching off/on the automatic air conditioner
Switch off: press the 0 button. The display shows «0».
Air supply and circulation switched off. It is recommended to set this mode only for a short time. Otherwise, the windows may fog up.
Power on: press the 0 or button, or press and lock at least one knob.
Ventilation locker on the center console under the armrest
There is a ventilation nozzle in the locker towards the AT selector lever.
Opening: move the handle up.
Closing: move the handle down.
The air supply depends on:
- from the set air distribution,
- from the installed air supply,
- from the opening position of the ventilation deflectors on the instrument panel.
The air temperature approximately corresponds to the temperature of the air leaving the middle vents. It cannot be installed separately.
Note. Extremely high temperatures can occur in the locker due to limited space. Therefore, when transporting a heat-sensitive load, it is necessary to close the ventilation nozzle of the switched on heating.
Do not cover the ventilation nozzle in the locker with objects.
Deflectors in the rear
1 Adjustable center vent in the rear, left
2 Adjustable center vent in the rear, on the right
3 Regulator for the middle deflector in the rear (models without air conditioning in the rear)
Opening: turn the knob to the left.
4 Adjustable side deflector in the rear
5 Rear vent adjuster
Opening: Turn the regulator towards the side window.
Air conditioning in the rear
1 On/Off engine residual heat utilization mode (above in this section)
2 Display. The indication on the display is carried out depending on the ambient light: positive - black numbers on a light background (afternoon), or negative - light numbers on a black background (at night).
3 Air distribution top/bottom
4 Temperature rocker switch, right
5 Air supply toggle switch
6 Temperature rocker switch, left
7 Adjustable center vent in the rear, left
8 Adjustable center vent in the rear, right
Note. The rear air conditioner does not cool when the button on the automatic air conditioner is pressed.
With unoccupied rear seats (none of the seat belts are in the buckle) the temperature on both sides is automatically set to 22°C.
Basic position of controls in automatic mode
We recommend that you activate the automatic mode and set the temperature on the left and right to 22°C. In this way, the most pleasant temperature in the rear of the passenger compartment is achieved.
Press the air supply toggle switch on A. The display shows «AUTO». The air supply is regulated automatically.
Manual air supply control
Press the air supply toggle switch up or down. 7 fan stages can be selected.
Rear air conditioning control via automatic air conditioning control panel
Through the automatic air conditioning control panel in the center console, the air conditioning in the rear compartment can be turned off and the fan stage and temperature setting can be changed.
To do this, on the automatic air conditioner, press the air supply toggle switch A horizontally and keep it pressed until the above indication appears on the display.
The air conditioning in the rear can be turned off and on with the 0 button.
The fan toggle switch can set the fan stage, and the temperature toggle switches can set the temperature of the air conditioner in the rear.
Approximately 4 seconds after the last button was pressed, the display will turn off and the automatic air conditioner will return to normal operation.
Independent heater
Remote control device:
1 Antenna
2 Display
3 On/Off
4 Program call button
5 Setting buttons
6 Lid
An independent heater heats or ventilates the car interior depending on the value set on the automatic air conditioner and the temperature of the air in the cabin.
All functions of the independent heater can be called up by the remote control. Independent heater can be turned on immediately (immediate heating) or programmed so that it automatically turns on at the required time (program heating).
The switch in the center console can switch the independent heater on and off and reset the activated switch-on time.
The independent heater is switched on only when the coolant temperature is below 70°C.
There is a risk of fire and poisoning!
Do not turn on an independent heater at filling stations and in enclosed spaces without an extractor hood (e.g. in garages).
Note. Under appropriate temperature and weather conditions, it may happen that the system, for example, first produces ventilation and then heating. This ensures that the required temperature can be reached as quickly as possible.
To achieve the maximum range of the remote control, it is recommended that the antenna be fully extended during transmission and the remote control held vertically. Transmission continues as long as the display flashes.
The maximum range of the remote control is 1000 m. From enclosed spaces or due to massive obstacles, the range may be limited.
The factory-set operating time for the independent heater is 50 minutes. However, it can also be set individually. Any maintenance station will provide information on this issue «Mercedes-Benz».
The independent heater remote control device can be stored in the storage compartment, in front of the selector lever, in the holder.
The car is equipped with a remote control device. One additional remote control device of the same design is provided for each vehicle. Any maintenance station will provide information on this issue «Mercedes-Benz».
Before switching on
Setting the desired interior air temperature using the automatic air conditioner temperature toggle switches (above in this section). We recommend setting the left and right temperature to 22°C.
An independent heater automatically regulates the set temperature.
Immediate activation
Indication on the display of the automatic air conditioner in independent heater mode.
The independent heater can be switched on with a switch on the center console.
Indication on the display of the automatic air conditioner in the ventilation mode of the independent heater.
Activation of an independent heater with a switch:
Click the switch on the symbol.
The green control LED lights up and the automatic air conditioner display is activated.
Activation of an independent heater/ventilation by a remote control device:
Press the ON button on the remote control until the display on the remote control flashes «On». The automatic air conditioner display is activated. When the independent heater is turned on, the control LED on the switch on the center console lights up.
Shutdown
The independent heater can be turned off by a remote control or a switch in the center console.
The independent heater can be switched off by the remote control. When the electronic key is turned in the ignition switch to position 2, the ventilation system of the independent heater is also switched off.
Shutdown by switch: switch on the center console, press the symbol .
The green control LED goes out.
Turn off the remote control device:
Press the OFF button on the remote control until the display on the remote control flashes «OFF». The display of the automatic air conditioner turns off. If the independent heater is previously activated, the green control LED on the switch in the center console also goes out.
Turn-on time
3 switch-on times can be set, of which one switch-on time can be activated respectively.
Open the cover on the remote control and press the program call button. The most recently called on time appears on the display.
Setting the switch-on time:
Call up the switch-on time to be changed, press and hold the or button until the required time is displayed.
Activation of program heating / ventilation
Remove the cover on the remote control device and press the program call button repeatedly until the required switching time is indicated on the display.
Immediately after this, press the ON button on the remote control until the switch-on time flashes. The yellow control LED on the switch in the center console lights up. The independent heater turns on at the required time.
Switching off program heating / ventilation
The independent heater can be turned off by a remote control or a switch in the center console.
Shutdown by switch:
Switch on the center console press the symbol P off. The yellow control LED goes out.
Turn off the remote control device:
Remove the cover on the remote control device and press the program call button repeatedly until the switch-on time is indicated on the display.
Press the OFF button on the remote control until the display on the remote control starts flashing «- -: - -». The yellow control LED on the switch in the center console lights up.
Note. If the independent heater has already been switched on, then, as described in chapter «Shutdown», can be turned off.
Not later than after 50 minutes, the independent heater switches off automatically. The control LED goes out.
Battery charge indication
If the operating voltage of the remote control device drops below a certain limit value, when the ON, OFF or P buttons are pressed and for 10 seconds after transmission, the display shows «LO». Batteries should be replaced immediately.
Replacing the Batteries
1 Lid
2 Batteries
There is a risk of poisoning!
Keep batteries away from children. If a battery is swallowed, seek medical attention immediately.
Remove the cover -1- downwards overcoming the locking position.
Take out the old battery.
Insert a new battery -2- in accordance with the markings of the + and - poles cast on the body of the remote control device.
Push the cover down.
Environmental note!
Dispose of discharged batteries in accordance with environmental protection requirements.
Rear window heating system
Turn the electronic key in the ignition switch to position 2.
Switching on: On the control panel of the automatic air conditioner, press the button.
The control LED on the button lights up.
Note. If the rear window is iced on the outside or covered with snow, the ice and snow must be removed before turning on the heated rear window.
The heated rear window consumes a lot of electricity. Therefore, it should be turned off immediately after the fog disappears.
The heated rear window switches off automatically depending on the outside temperature and driving speed after approx. 6 to 23 minutes.
If a large number of electrical consumers are turned on or the battery is insufficiently charged, the rear window heating system may turn off.
In this case, the control LED on the button starts flashing.
When sufficient voltage is restored, the heated rear window switches back on automatically.