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E21, E30General discussion and technical help for 1975-1991 3 series cars.
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Your Ride: 1991 325i
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.
Your Ride: 1991 318is (e30 m42), 2007 Mazdaspeed 3
^+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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Your Ride: 1985 bmw 325
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 12:47 PM..
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Your Ride: 1985 bmw 325
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
Your Ride: 92 525, 88 325 hardtop'ed vert and 83 320iS
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
01-07-2008, 08:49 PM
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