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| The ambient air temperature is above 15 °C. |
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| The radiator and condenser are clean; clean if they are not. |
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| The compressor Poly-V belt is in good condition and properly tensed. |
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| All air flow ducts, protective covers, gaskets/seals are in good condition and correctly fitted. |
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| The air flow through the dust and pollen filter is not affected by dirt. |
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| The fresh air is taken in through the fresh air inlets in the engine compartment and in the interior. |
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| The water drainage valves in the fresh air inlets in the engine compartment are in good condition. |
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| The vehicle should not be in direct sunlight |
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| The engine must be warm. |
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| Consult the fault memory and erase it. |
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| Perform the basic configuration. |
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| All aerators on the dashboard are open. |
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| Settings for the control and indication unit -E87-: |
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| Temperature selection “LO”. |
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| Compresser activated (the light on the “ECON” button lights up). |
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| Functions with the engine is running: |
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| The refrigerant liquid fan -V7- operates (at least at one speed). |
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| The fresh air turbine -V2- is running at maximum speed. |
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| The air recirculation/fresh air flap is in the position “Air recirculation” (approx. 1 minute after starting the engine, the fresh air turbine -V2- takes air from the footwell on the passenger side). |
Note |
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