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E28 (1982 - 1988)

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Old 06-08-2010, 01:15 PM
scruffy507 scruffy507 is offline
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Location: Shawnee, PA
Join Date: Jun 2010
Posts: 1
Mein Auto: 1984 bmw 528e
Can't turn heat off????

Hey folks! I have a 1984 528e that I can't turn the heat off. I pulled the heater valve and it appeared clean and unstuck. I also carefully applied 12 volts to it and the plunger did actuate in then out?? I cant seem to stop the heat coming from the defroster or floor vents and the sliders and doors are connected and working too. Please help!
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Old 06-15-2010, 12:43 AM
Officially Welcomed to the 'Fest
Join Date: Mar 2010
Posts: 285
Mein Auto: BMW 635 CSi BMW 730i E38
The electronic heater valve which is fitted on the bulkhead has failed which is a very common problem, Other symptons are the inabilty to regulate the hot air or cold air above or below 60 mph.
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