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    BMW E28 Engine Fans & Fan Clutches

    BMW cooling fans are one of two types - engine mounted mechanical and full electric (not driven by the engine). As the fan spins it draws air from the front of the car, pulls it through the radiator (where the air cools the water vanes in the radiator), and then directs the airflow over and around the engine. The faster you drive the car, the faster air is being drawn through the radiator. But at idle or in traffic, and especially warm days, the lack of airflow could lead to overheating if your fan is malfunctioning. The fan should always be spinning fast. A fan that barely spins at all is a sign of a failed fan clutch and should be replaced right away. The clutch is mounted in the fan and can be replaced on its own. The actual fan rarely goes bad unless one of the blades is damaged. Electric fans require a complete replacement if it's not working (the motor cannot be replaced separately).
    You're currently viewing parts for your (E28) 5-Series 1982-1988. Reset your chassis
    For accurate results, specify your year and model below.
    This fan is driven by the belt, engaged by the fan clutch. If you have bad motor mounts, it's quite common for the blades of this fan to make contact with the radiator or radiator shroud, essentially self-destructing the fan into many peices. Be sure to get a new fan clutch, while you are replacing this.

    This item fits the following BMWs:
    1988-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
    1992-1998 E36 BMW 318i 318is 318ti 318ic
    1988 E28 BMW 528e 535i 535is M5
    1989-1990 E34 BMW 525i
    1988-1989 E24 BMW 635csi M6
    1997-1998 Z3 BMW Z3 1.9
    Part #: 11521723363
    Price: $61.95 (USD) 
    Has your fan clutch failed or is beginning to fail? A failing fan clutch will cause the engine fan to either not turn at all, or to turn very slowly and lifelessly, providing insufficient cooling for the radiator (especially noticable while idling or in stop/go traffic). This fan clutch, with 32mm connecting the clutch to the waterpump, fits many BMWs from the 80's and 90's (see list below for full list of BMW fitments). This is an OEM Behr fan clutch.

    This fan clutch fits the following BMWs:
    1977-1983 E21 3 Series with 6 cylinder engine (320/6 and 323i)
    1981-1987 E23 7 Series **with 32mm nut - 733i & 735i
    1977-1989 E24 6 Series **with 32mm nut - 633Csi, 635Csi, M6
    1982-1988 E28 5 Series **with 32mm nut - 533i, 528e, 535i, 535is, E28 M5
    1984-1991 E30 3 Series including 318i, 318is, 325, 325, 325i, 325is, 325ix & E30 M3
    1992-1999 E36 3 Series with 4 cylinder engine - 318i/318is
    1996-1998 Z3 Roadster with 4 cylinder (Z3 1.9 liter)
    Part #: 11521466000
    Price: $79.95 (USD)