No Coolant To Heater Core, Burrr! - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 11-27-2004, 03:13 PM
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I have had a problem with my 85 325e running hot, but not overheating and not getting any heat inside the car. I thought it was the thermostat, so after replacing that, I checked the old one, I don't know exactly what temperature it opened at, but it did open. Niether hose going to or from the core is hot. Would backflushing the core be the next thing to try? I looked under the dash trim, and I can see the cable moving when I turn the hot/cold air dial, so it seems like that is not an issue either. All I know is it's getting colder here, and I have to get this figuered out soon. ghead

Any thoughts, suggestions, input, or solutions would be greatly appreciated, thanks in advance.
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#2 (permalink) Old 11-27-2004, 04:32 PM
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okay is the temp. dial on the red part?
is the cable to the temp dial okay?
is the fuse okay?
are all the cables okay?

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#3 (permalink) Old 12-03-2004, 02:34 AM
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Quote:
Originally posted by idanity@Nov 27 2004, 04:32 PM
okay is the temp. dial on the red part?
is the cable to the temp dial okay?
is the fuse okay?
are all the cables okay?
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I can see the cable moving behind the dial if I lay down on the floor and pull back on the console a little bit. I don't really know where to look on the other end of the cable. What fuse would be I be checking? The blower motor works, if that is what you meant.
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#4 (permalink) Old 12-13-2004, 08:35 PM
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I have this same problem...I need help with it too. Takes forever to warm up, but it eventually gets warm after 10-15 minutes inside the car. Also feels like car is overheating in stop and go traffic (OBC temp goes over 30 degrees C and cools back down once i'm up to speed on freeway).

Mark

Mark
1984 325e
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#5 (permalink) Old 12-13-2004, 09:43 PM
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No, do not back-flush a BMW cooling system, you will create more probles than it will solve. It sounds like at some point someone put stop leak in the cooling system and cloged the radiator and heater core.
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