This video explains how to replace the heater control valve on BMW 3 series built between the years of 1991 and 1999 if equipped with the valve that has the 3 heater hoses located on the same side, two upper outlets and one lower inlet.

https://www.youtube.com/watch?v=SD9FBtSTLv4

More details here

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Home / BMW E36 328i Sedan / Repair Manuals and Technical Data / 64 Heating and air conditioning /Search documents:

64 00 Note, overview components climate control >

64 11 Heater and controls >

64 12 Auxiliary heating with control element >

64 21 Air and water lines >

64 31 Microfilter >

64 50 Air conditioning, check >

64 51 Heating and air-conditioning unit (evaporator), shift elements >

64 52 Compressor >

64 53 Condenser and dryer with lines >

Tightening Torques (COM) 64 operating fluid overview

Repair Instructions (REP) Information on using cleaning agent/paints (personal protection equipment)

Operating fluids (SBS) Main group 64

Service Information (SIT) Heater not providing enough heat at idle speed E36 petrol-engined

Applies to: NOT USA

Service Information (SIT) IHKA control panel: LED in A/C button flashes All models with integrated automatic heating and air conditioning (option 534)

Applies to: NOT USA

Service Information (SIT) Musty odour from heating and air conditioning system, evaporator cleaning

Applies to: NOT USA

Service Information (SIT) Operating noise from the air-conditioning (a/c) compressor E36 with a/c unit

Applies to: NOT USA

Service Information (SIT) Reduced air output E36 with IHKR

Applies to: NOT USA

Technical Data (TED) A/C system, refrigerant amounts

https://www.newtis.info/tisv2/…heating-air-conditioning/