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Climate Control System (IHKA)

The IHKA is standard equipment on the X5 with the M62 engine and optional equipment on the M54 version. The IHKA system is taken from the E39 sedan and includes all func- tions and features of the IHKA currently installed in the E39.

Features of the IHKA system include:

  • Integrated control panel/module.

  • Separate temperature control for the driver and front passenger.

  • Air flap control through the use of bussed stepper motors.

  • Automatic Recirculation Control (AUC).

  • Recirculation air flap control from the MFL.

  • “REST” function for residual heat when vehicle is stopped.

  • Service station feature that closes the water valves when stopped to prevent hot water

circulating into the heater cores.

  • A/C compressor clutch activation through a final stage control.

  • Center face vent stratification control through a bowden cable.

  • Separate blower motor for rear passenger compartment

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The rear blower motor is located below the center storage box behind the center air outlet grilles. The blower speed control is mounted in the panel below the outlets. Cool or strati- fied air is available at the center outlets.

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