Changes to 7 Series (E38) IHKA Control Panel

Changes to 7 Series (E38) IHKA control panel:







The IHKA control panel has changes in appearance and operation. The blower speed control wheels have been replaced by rocker switches. The push buttons for Front and Rear defrost, NO control and AUC control are now mounted in a single row at the bottom center of the control panel

- after 9/96 production

The major changes in the operation of the system as of 9/96 are:







A new "AUTO-symbol" is used in the LCD display in addition to the illuminated LED on the "AUTO-button".

- The "AUTO-symbol" in the LCD indicates the automatic fan speed program being activated.
- The illuminated LED on the "AUTO- button" indicates activation of the automatic air distribution program.
- When both are displayed, the system is in the fully automatic mode.

If one of the manual distribution buttons is selected, the automatic air distribution is cancelled and the "AUTO-button" LED goes out.







If one of the manual distribution buttons is selected, the automatic air distribution is canceled and the "AUTO-button" LED goes out (e.g. on the illustration - passenger face vent button was selected).

However, the fan speed remains in the auto mode, with "AUTO- symbol" being displayed on the LCD.

If the fan rocker switch is pressed, when the system is in the AUTO mode, the blower speed is switched to manual control. The "AUTO-symbol" in the LCD display goes out.

However, the air distribution remains in the automatic mode with the LED being illuminated on the "AUTO-button".