| Refrigerant temperature sender -G454- |
| The refrigerant temperature sender (with a temperature-sensitive resistor) is installed, for example, in the high-pressure line next to the air conditioner compressor. |
| In the refrigerant circuit, there is a direct relationship between temperature and pressure. If there is insufficient refrigerant in the circuit, the temperature in the refrigerant circuit during air conditioner operation will increase more sharply than envisaged for this pressure. |
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| The operating and display unit, Climatronic control unit -J255- evaluates the pressure and the temperature in the refrigerant circuit and switches off the air conditioner compressor if the temperature increases above the value stored for this pressure → Air conditioning; Rep. gr.87 (vehicle-specific workshop manual) and → Vehicle diagnostic tester („Self-diagnosis“ or „Guided Fault Finding“ function for the air conditioner). |
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