5 Series E60 530d (M57T2) SAL
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From the return flow from the heating system heat exchanger
The switchover valve is actuated by the independent heating control unit.
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Auxiliary fan
The auxiliary fan is standard on all vehicles with IHKA. Besides the engine cooling, the auxiliary fan is also
needed for cooling the condensers. [more ...]
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Condenser with integrated drier flask
Refrigerant is converted from gas into liquid in the condenser. In the integrated drier flask, which is installed
downstream of the condenser, any water that may be present in the refrigerant circuit is collected. The drier
element can be exchanged.
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Expansion valve
The expansion valve is directly on the evaporator in the heating/air-conditioning system. The valve regulates the
injection rate in the evaporator. Only as much liquid refrigerant is permitted to enter the evaporator as the
evaporator is able to completely evaporate. Drops of liquid that have not been evaporated could cause damage
in the A/C compressor.
Additional components:
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Microfilter
On the IHKA Basic, fresh air for interior ventilation is fed through a system of microfilters. On the IHKA High, a
microfilter with activated carbon is fitted. The activated-charcoal filter helps to provide additional purification of
the incoming air from gaseous pollutant emissions. When a filter replacement is needed, this will be indicated by
the Condition Based Service (CBS) display.
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Rear air-stratification flap (IHKA High only)
The selected potentiometer setting is transposed into the rear compartment flap motor position.
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LIN bus
The IHKA control unit controls the following components via the LIN bus:
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Electric auxiliary heater
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Flap motors
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Blower with blower output stage
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Control and display functions via controller and Central Information Display
The following control and display functions are selected and activated on the CID (Central Information Display)
with the controller (move controller to left in start menu):
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Temperature control (IHKA Basic)
The temperature for the driver's and front-passenger sides are centrally set on the IHKA controls. The
temperature can be increased or decreased from this central setting using 3 selectable settings (warmer,
neutral, colder).
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Temperature control (IHKA High)
The temperature can be increased or decreased separately on the driver's side and front-passenger side in
4 increments.
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Independent heater (optional)
Select between direct operation and programming with timer.
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Independent ventilation (IHKA High only)
Select between direct operation and programming with timer.
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Air distribution (IHKA High only)
The airflow for the driver's and front-passenger sides are centrally set on the IHKA controls. Deviating from
these central setting, the airflow can be adjusted separately for the footwell and upper body (driver's and
SBT Integrated automatic heating / air-conditioning system (IHKA), Basic and High E6
BMW AG - TIS
22.02.2013 14:43
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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