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| E21, E30 General discussion and technical help for 1975-1991 3 series cars. |
01-07-2008, 09:49 PM
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#1
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Name: Exilion
Title: Senior Member
Status: Offline
Join Date: Oct 2006
Location: World wide
User not setup in Rate My Car. Click here to set it up. Your Ride: 1991 325i
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Everything is cold
Alright since I forgot my bentley manual at my parents house I figured I'd ask you all. First is something I believe is related to the thermostat, My engine always seems to hover at 1/4 tempurature. Secondly I dont get much if any heat from the heater. Do I just have to replace fluids for that or has my heater core crapped out. And I hate to say it but everything is going to be speculation until like Feb 29th when I go home, I figured it'd be fun to research lol. Anyway right now I dont know much about the heating and cooling system symptoms right now so any speculation will be appreciated.
__________________
BMW's are made by god... kinda
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01-07-2008, 09:56 PM
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#2
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Name: witeshark
Title: Road Kill
Status: Offline
Join Date: Apr 2005
Location: Miami FL
Your Ride: 89 325i 5 speed
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Yeah, seems like a thermostat issue |
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01-07-2008, 10:02 PM
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#3
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Name: nick_318is
Title: Road Kill
Status: Offline
Join Date: Jul 2005
Location: Detroit, MI, I Heart E30s
Your Ride: 1991 318is (e30 m42), 2007 Mazdaspeed 3
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^+1 sounds like a bad t-stat or a valve not opening all the way. As far as not getting above 1/4 warm i dont think thats really an issue although most of these hover right around the half way mark. |
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01-08-2008, 01:43 PM
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#4
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Name: player2poet
Title: Member
Status: Offline
Join Date: Sep 2007
User not setup in Rate My Car. Click here to set it up. Your Ride: 1985 bmw 325
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this happened to me too .if its the same problem there is a electric vavle that opens and closes to let coolent into the heater core its controlled by your cold hot switch on your console any way if this does not open and close you cant anything to your heater core. its on the end of the heater core and is apart of heater core itself cant miss it .i would check to see if you are getting power to it first before you go tearing out the heater core not a fun job .good luck.ps its on the drivers side of the heater core and its attached to hoses coming thru the fire wall .
Last edited by player2poet : 01-08-2008 at 01:47 PM.
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01-08-2008, 01:57 PM
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#5
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Name: jcjdavis1
Title: United Newb
Status: Offline
Join Date: Oct 2007
Location: Paisley Scotland
User not setup in Rate My Car. Click here to set it up. Your Ride: 1989 320i tourer
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Hi. Before you star pulling things apart make sure the cable is working between the hot/cold switch and the heater control valve.
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The older I get the wrong bits get stiff!!!
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01-08-2008, 02:14 PM
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#6
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Name: player2poet
Title: Member
Status: Offline
Join Date: Sep 2007
User not setup in Rate My Car. Click here to set it up. Your Ride: 1985 bmw 325
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it should be a electric in his case the cable just closes the vent off not the valve itself make sure have power to valve . |
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01-08-2008, 02:37 PM
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#7
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Name: Exilion
Title: Senior Member
Status: Offline
Join Date: Oct 2006
Location: World wide
User not setup in Rate My Car. Click here to set it up. Your Ride: 1991 325i
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Do you get to the heater core through the inspection opening in the fire wall and removing the heater blower, or do you mess with the dash?
I've done the heater blower thing for my windshield wipers... it's not fun.
__________________
BMW's are made by god... kinda
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01-08-2008, 03:30 PM
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#8
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Name: player2poet
Title: Member
Status: Offline
Join Date: Sep 2007
User not setup in Rate My Car. Click here to set it up. Your Ride: 1985 bmw 325
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no all you havt to do is remove the shift cosole if you really want to get at .if your just checking power to the valve i think can see it and the hoses without pulling anything its to the right of your gas peddle. between the fire wall and console you will see to hoses coming thru attached to the valve its in cased in black plastic cant miss it.good luck |
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01-08-2008, 07:40 PM
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#9
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Name: Antiburn
Title: Senior Member
Status: Offline
Join Date: Apr 2005
Location: Jersey
Your Ride: 92 525, 88 325 hardtop'ed vert and 83 320iS
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Just start with a t-stat. It will only take you 20 minuets to do and costs the cheapest.
I just did one on my e34, same problem as you, takes forever to heat up and doenst blow hot, did a water pump too. Now the heat burns my feet.
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1992 525i, 1988 Hardtop'ed Vert and 1983 320iS
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