IHKA E36 Control Panel/Module
The E36 control panel and control module is integrated into one unit. IHKA E36 control panel/module features are listed below.
When the IHKA E36 system is "Off," pressing any button on the control panel/module turns it on again.
Air Distribution Buttons: The E36 control panel/module air distributions are the same as E38, except there is only one set of buttons, which control air distribution on both sides.
If the "up arrow" button is pressed, air flows from the windshield defroster outlets.
Pressing the "right arrow" button causes air to flow from the face vent outlets.
When the "down arrow" is pressed, air flows from the footwell outlets (front and rear).
If the "AUTO" button is pressed, the control module automatically selects the appropriate flap positions for the sensed conditions. When cooling is required, air flows from the face vents. When heating is required, air flows from the footwells and the windshield defroster outlets.
LCD Display: The E36 control panel/module has a backlit LCD display where left and right desired temperatures and blower speed are shown. Display brightness varies according to ambient light levels when the headlamps and parking lamps are "off." With the lamps "on," brightness depends on dimming rheostat thumbwheel position.
Interior Temperature Sensor: As on all previous IHKA systems, an interior temperature sensor is located inside the control panel/module. also as on previous systems, the sensor has its own electric fan to ensure adequate air flow over the sensor.
Photocell: The photocell, located just below the interior temperature sensor grille, monitors ambient light levels to influence LCD display brightness (as on E38s).
Temperature Selection Rocker Switches: The temperature selection rocker switches (left and right), function the same as those on E38 vehicles.
Blower Rocker Switch: Blower speed is selected using a rocker switch. Speed is increased by pressing the "+" end of the switch and decreased by pressing the "-" end.
When the system is at the lowest blower speed (speed "1"), pressing the "-" end turns the system "Off."
Maximum Defrosting Button: This button functions the same as the one on E38, except that the mixing flaps are not affected (they are cable operated). When pressed:
- the fresh air flaps are opened and
- the recirc. flaps are closed and
- the windshield defrost flaps are opened and
- all other distribution flaps are closed and
- the blower runs at maximum speed and
- the rear window defroster switches on.
The A/C compressor does not turn on automatically, but will run if the "snowflake" button is pressed.
A/C Compressor "snowflake" Button: Pressing the "snowflake" button causes the control panel/module to signal the engine control module (ECM) that A/C compressor operation is desired.
The ECM then energizes a relay to run the compressor.
Recirculating Air Button: This button controls air intake location as on previously covered IHKA systems.
On IHKA E36, though, recirculating air mode has no time limit. Once activated, it continues until the button is pressed again.
Rear Window Defroster Button: Pressing the rear window defroster button activates the rear window heating for about 17 minutes.
Viewed from the bottom , the IHKA E36 control panel/module has the following features: