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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 04-01-2005, 05:44 PM
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My 1996 BMW 328is will not blow hot air while car sits in idle. The gas has to be applied in order for heat to function properly. It works fine while the gas is being applied. The temp. control unit has recently been replaced and a new radiator. Any ideas? Thank anybody for help.
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#2 (permalink) Old 04-01-2005, 07:13 PM
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As I understand it, it's your heater control valve that needs replacing...it's sticking. But lets see how others weigh in on this.

<span style='color:green'>1994 325i </span>- - - 75,000 mi.
No mods - - - very happy as is!
<span style='color:green'>1995 525i </span>- - - 154,000 mi.
No squeaks or rattles... unreal!
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#3 (permalink) Old 04-01-2005, 07:59 PM
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Especially in view of your recent replacement of the radiator, the more likely culprit will be insufficient bleeding of air out of the coolant system. Turn the heater on full hot, and re-bleed the system according to Bentley proceedure. This is a common symtom for inadequate bleeding.

HTH
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#4 (permalink) Old 04-02-2005, 10:17 AM
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Also replace your microfilter? it's time hommie!

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#5 (permalink) Old 04-02-2005, 12:03 PM
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add some coolant and see if that fixes the problem
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#6 (permalink) Old 04-02-2005, 12:27 PM
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guy, it's the thermostat man i had the same problem

and i'm a mechanic
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#7 (permalink) Old 04-02-2005, 01:53 PM
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Quote:
Originally posted by Duge@Apr 2 2005, 02:27 PM
guy, it's the thermostat man i had the same problem

and i'm a mechanic
[snapback]323847[/snapback]
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#8 (permalink) Old 04-02-2005, 01:55 PM
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Quote:
Originally posted by christian+Apr 2 2005, 03:53 PM--><div class='quotetop'>QUOTE(christian @ Apr 2 2005, 03:53 PM)</div><div class='quotemain'><!--QuoteBegin-Duge@Apr 2 2005, 02:27 PM
guy, it's the thermostat man i had the same problem

and i'm a mechanic
[snapback]323847[/snapback]
[snapback]323892[/snapback]
[/b][/quote]
Thanks for all the helpful info guys. This is great information.
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#9 (permalink) Old 04-06-2005, 10:01 AM
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[quote=christian,Apr 2 2005, 02:55 PM]
Quote:
Originally Posted by christian,Apr 2 2005, 03:53 PM
Quote:
Originally Posted by Duge,Apr 2 2005, 02:27 PM
guy, it's the thermostat man i had the same problem

and i'm a mechanic
[snapback]323847[/snapback]
[snapback]323892[/snapback]
Thanks for all the helpful info guys. This is great information.
[snapback]323896[/snapback]
[/quot

if you have to put the foot on the gas to get heat, then most likely your water impeller is faling, dont forget the factory ones where made of plastic, check that too.

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