Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW1993740IL (E32/2) V8-3982CC 4.0L DOHC (M60)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGDESCRIPTION AND OPERATIONCLIMATE CONTROL SYSTEMS, SYSTEM SPECIFICIHKA (INTEGRATED HEATING AND AIR CONDITIONING SYSTEM)IHKA E32HOUSING ASSEMBLY
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)
Housing Assembly
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)SECTION Housing Assembly
IHKA E32 HOUSING ASSEMBLY
The housing assembly is mounted behind the center of the instrument panel. Most of the climate control system components are mounted either inside or on the housing: 10 stepper motors (for flap control), heater cores (left and right), an evaporator, 4 temperature sensors, the IHKA control module, the blower motor, and the blower final stage unit
In June of 1990, the housing assembly was modified to accommodate a microfilter, which slid into the right side of the housing assembly between the final stage unit and the evaporator core.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.