IHKA E36 Compared to IHKA E38

IHKA E36 Compared To IHKA E38

Beginning with the 1996 model year, a new IHKA system is installed on all E36 vehicles except the 318ti and Z3. Referred to as IHKA E36, it replaces the IHKR system previously used on these vehicles.

In comparison to previous IHKA systems, IHKA E36 is most similar to IHKA E38. IHKA E36, however, does not have many of the features found on IHKA E38.

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).

Differences From E38 IHKA

- There is only one desired blower speed input.
- Eight distinct blower speeds are available.
- Blower speed is shown on the digital LCD display.
- No face vent air temperature sensors.
- No auxiliary coolant pump.
- Dedicated IHKA system ambient temperature sensor.
- Engine control module controls the A/C compressor.
- One set of air distribution buttons for both left and right sides.
- No windshield or washer spray jet heaters.
- Sensor values and other input status data can be displayed on the control panel/module.
- No "Rest" function.
- No console outlet rear flap.