AD83.40-P-3000A | Air conditioning (Automatic) (Automatic) A/C diagnosis, function check | 11.2.97 |
MODEL 208
Air conditioning (Automatic) (Auto A/C) diagnosis, previous knowledge | |||
Function check | |||
Test step/Scope of test | Operation/Requirement | Specified value | Possible cause/Remedy |
1 Defrosting | Function button Any preselected temperature | Blower runs at increased speed. Air flow from defroster outlets A/C compressor on, maximum heat output, 100% fresh air. | |
2 Complete ventilation in cool mode | Function button Preselected temperature "" Soft top completely closed (on model 208.4 only) | Blower runs at increased speed. Air flow at center and side outlets. A/C compressor on, no heat output. Coolant circulation pump (M13) does not operate. | |
3 Normal setting in control mode | Function button Adjust preselected temperature corresponding to the interior temperature | Blower speed reduces. Air flow at defroster outlets, leak air from footwell outlets. A/C compressor on. Temperature-controlled air flow. Duovalve cycles and the coolant circulation pump (M13) runs. | |
4 Economy without heating mode | Preselected temperature "" Function button Function button | Air from center level (ambient air). A/C compressor off. | |
5 Economy with heating mode | Preselected temperature "" Function button | Air flow from footwell outlets, left/right side outlets. Leak air from defroster outlets. Maximum heat output. Coolant circulation pump (M13) runs. | |
6 Recirculated air | Function button | Function button illuminated | |
7 Residual heat storage system | Ignition: OFF Function button Preselected temperature > °C | Heated air from footwell outlets, side outlets, leak air from defroster outlets. Blower runs at lower speed. Coolant circulation pump (M13) runs. |
Referenced documents
- ad8340p2000a Air conditioning (automatic) diagnosis, basic knowledge
- ad8340p600001a Voltage supply terminal 30, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600002a Voltage supply terminal 15, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600003a Voltage supply terminal 15x, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600004a In-car temperature sensor, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600005a Evaporator temperature sensor, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600006a Refrigerant temperature sensor, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600008a Right heater core temperature sensor, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600009a Refrigerant pressure sensor, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600010a Diagnostic output, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600011a Serial interface K1, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600013a Auxiliary fan actuation, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600014a Pushbutton control module, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600015a Coolant circulation pump, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600016a Duovalve, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600017a Blower regulator actuation, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600018a A/C compressor actuation, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p600019a Switchover valve block, testing electrical system of air conditioning (Automatic) (Automatic) A/C
- ad8340p800001a Vacuum line to intake manifold, testing pneumatics of air conditioning (Automatic) (Automatic) A/C
- ad8340p800002a Vacuum reservoir, testing pneumatics of air conditioning (Automatic) (Automatic) A/C