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Refrigerant Circuit with Expansion Valve and Evaporator
The following illustration shows only the principle of a
refrigerant circuit, the design of the refrigerant circuit in
the respective vehicle can be found in the vehicle-specific
repair manual. Refer to
→ Heating, Ventilation and Air
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIL)
in the instrument cluster > fig. 8
is part of the On-Board Diagnostic (OBD II) system.
The warning/indicator light illuminates when the ignition is switched on and
goes out after the engine starts and the idle has stabilize