recirculation MERCEDES-BENZ C-Class 2000 W202 Owner's Manual

Climate Control
1. Air volume control for center air outlets, turn wheel
up to open.
2. Air volume control for side air outlet.
To open side air outlet:
Turn wheel to position
3. Center air outlets, adjustable
4. Side air outlet, adjustable
5. Windshield air outlet
6. Temperature selector, left side passenger compartment
7. Temperature selector, right side passenger compartment
8. Air volume control switch
9. Air distribution control switch
10. Rear window defroster
11. Economy mode
12. Air recirculation,
Residual engine heat utilization.


(Model C 230 Kompressor)

The system is always at operational readiness, except when manually switched off. The climate control only
operates with the engine running. To quickly cool down the passenger compartment, turn temperature
selectors fully downward. Turn temperature selector to maintain desired temperature. The 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.

Defogging Windows

Windows fogged up on inside
Switch off economy mode Indicator lamp goes out.
Switch off air recirculation . Indicator lamp goes out.
Set air distribution control switch to position .
Increase air volume with control switch.
Close center air outlets.
Turn wheels (2) to position to open left and right side
air outlets (4). Adjust side air outlets upward.

Windshield fogged up on outside
Switch on windshield wipers. Set air distribution control switch to position or


Economy
The function of this setting corresponds to the air conditioning mode. However, because the air
conditioning compressor will not engage (fuel savings), it is not possible to air condition in this setting.
Press button to activate.
Press button once again to return to previous setting.


Climate Control - OFF
To switch the climate control off, set air volume control switch to position 0.
The fresh air supply to the vehicle interior is shut off. While driving, use this setting only
temporarily, otherwise the windshield could fog up.


Rear Window Defroster
Turn electronic key in steering lock to position 2.
To select, press button.
To cancel, press button again.
Note:
Heavy accumulation of snow and ice should be removed before activating the defroster.
The rear window defroster uses a large amount of power. To keep the battery drain to a minimum,
turn off the defroster as soon as the window is clear.
The defroster is automatically turned off after a maximum of 12 minutes of operation.
If several power consumers are turned on simultaneously, or the battery is only partially charged, it is possible
that the defroster will automatically turn itself off. When this happens, the indicator lamp inside the switch starts
blinking. As soon as the battery has sufficient voltage, the defroster automatically turns itself back on.

Air Recirculation
This mode can be selected to temporarily reduce the entry of annoying odours or dust from vehicle's interior.
Outside air is not supplied to the car's interior.
To select, press button.
To cancel, press button again.
The system will automatically switch from recirculated air to fresh air
• after approx. 5 minutes at outside temperatures below approx. 40°F (5°C),
• after approx. 30 minutes, at outside temperatures above approx. 40°F (5°C),
• after approx. 5 minutes, if button is pressed.
At hight ouside temperatures, the system automatically engages the recirculated air mode for approx.
30 minutes, thereby increasing the cooling capacity performance. Press button again to extend the recirculated
air mode.

Residual Engine Heat Utilization
With the engine switched off, it is possible to continue heating the interior for a short while.
Air volume is controlled automatically
To select:
Turn electronic key in steering lock to position 1 or 0 or remove . Close air outlet in rear passenger compartment.
Press button. Indicator lamp in the button lights up.
This function selection will not activate if the battery charge level is insufficient.
To cancel:
Press button. Indicator lamp in the button goes out
The system will automatically shut off
• if you turn key in steering lock to position 2,
• after approx. 30 minutes,
• if the battery voltage drops.


Dust Filter
Nearly all dust particles and pollen are filtered out before outside air enters the passenger compartment through the
air distribution system.

Note:
Keep the air intake grille in front of windshield free of snow and debris.

Important !
This vehicle is equipped with an air conditioner system that uses R-134a (HFC: hydrofluorocarbon)
as a refrigerant. Repairs should always be performed by a qualified technician, and refrigerant
should be collected in a recovery system for recycling.

Display and Controls
Press to activate, indicator lamp is on while activated.
Automatic mode Air recirculation
Raise temperature Air distribution, manual
Lower temperature Economy mode
Defrost Air volume, manual
Rear window defroster Residual engine heat
utilization
Basic Setting - Automatic Mode
Press button for automatic mode.
Simultaneously press both
and button for temperature setting of 72°F.



Air volume and distribution are controlled
automatically. This setting can be used all year
around.

Economy
The function of this setting corresponds to the
automatic mode. However, because the air
conditioning compressor will not engage (fuel
savings), it is not possible to air condition in this
setting.
Press button to activate.
Press button once again to return to previous
setting.

Air Recirculation
This mode can be selected to prevent annoying odours or dust from entering the car's interior.
Outside air is not supplied to the car's interior.
To select, press button.
To cancel, press button again.
The system will automatically switch from recirculated air to fresh air
• after approx. 5 minutes at outside temperatures below approx. 40°F (5°C),
• after approx. 30 minutes, at outside temperatures above approx. 40°F (5°C),
• after approx. 5 minutes, if button is pressed.
Notes:
If the windows should fog up from the inside, switch from recirculated air back to fresh air.
At high outside temperatures, the system automatically engages the recirculated air mode thereby
increasing the cooling capacity performance, switching to partially fresh air within 20 minutes.


Dust Filter
Nearly all dust particles and pollen are filtered out before outside air enters the
passenger compartment through the air distribution system.
Notes:
Do not obstruct the air flow by placing objects on the air flowthrough exhaust slots below the rear
window.
Also keep the air intake grille in front of windshield free of snow and debris.


Residual Engine Heat Utilization
With the engine switched off, it is possible to continue heating the interior for a short while.
Air volume and distribution are controlled automatically
To select:
Turn electronic key in steering lock to position 1 or 0 or remove electronic key.
Press button.
This function selection will not activate if the battery charge level is insufficient.
To cancel:
Press button.
The system will automatically shut off
• if you turn electronic key in steering lock to position 2,
• after approx. 30 minutes,
• if the battery voltage drops.