Similarities To E38 IHKA

Combined control panel/module
Rocker switches for left/right desired temperature selection.
Digital LCD display of left/right desired temperatures.
Separate buttons to select windshield, face, or footwell air distribution.
"Auto" button that turns air distribution control over to the control panel/module.
"Smart" stepper motors operate all flaps except the fresh air flaps.
Fault codes stored in non-volatile memory (EEPROM).