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 MANUALSBMW1994318IS (E36) L4-1796CC 1.8L DOHC (M42)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGDESCRIPTION AND OPERATIONCLIMATE CONTROL SYSTEMS, SYSTEM SPECIFICINTRODUCTION
1994 BMW 318is (E36) L4-1796cc 1.8L DOHC (M42)
Introduction
1994 BMW 318is (E36) L4-1796cc 1.8L DOHC (M42)SECTION Introduction
INTRODUCTION
The IHKR system is a semi-automatic climate control system. The acronym IHKR is derived from the German words Integrierte Heizungs- und Klima-Regelung, which translates to "integrated heating and air conditioning regulation."
Cabin heating and air conditioning components and functions, separate on some earlier BMW Systems, are integrated and work together to provide passenger comfort, regardless of ambient conditions. On IHKR systems, cabin air discharge temperature is regulated by controlling the flow of hot engine coolant through the climate control system heater cores.
IHKR is classified as a semi-automatic system because air discharge temperature is regulated automatically by the system control module, while blower speed is controlled manually by the driver.
IHKR is used on all E34 vehicles built for sale in the U.S. (Model Years 1989-1995) and most U.S. E36 vehicles (MY 1992-1995). IHKR is based on the IHKA system found on E32 vehicles.
This course covers:
- IHKR1 E34
- IHKR2 E34
- IHKR/F3 E34
- IHKR E36
RENDER: 1.0x
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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.