No heat anymore, car doesn't come up to temp while driving.

[etxxz]

DO YOU HAVE AN OIL COOLER INSTALLED?

i had one, WITH a 180*F thermostat. it took forever to come up to temp. In fact, in the highway my oil temps would plummet to 160's. 140's if it was cold outside. (florida and california last year so how cold can it get? lol)


My solution would have been to insulate the oil cooler lines becuase they were long and acted as a cooler themselves... but i sold the car a month ago.

[cormier]

If you do get another valve, get both pipes and those stupid square nuts and bolts new as well, they were a headache for me

[328ijunkie]

Google is my friend ;) http://www.r3vlimited.com/board/showthread.php?t=203038
You should be able to test it.

[328ijunkie]

I made a thread about the valve a while back... hrm wonder if i can find the URL

[E30_Doc]

I bet it's the valve... I had mine go and you wont get any heat... pretty easy to swap out another one after you remove all the trim pieces.

[ScHpAnKy]

Sounds like a leaky head gasket to me as well.

I'm thinking it's the valve, compression is good and heater core hoses are dead on.

[Cephas]

Triple check your Hcore hoses. Sounds like theyre backwards for one. For two it sounds like your HG may be leaking.

Sounds like a leaky head gasket to me as well.

[FredK]

Yes. If #7 does not open or isn't plugged in, it would cause coolant flow problems and the overheating symptoms you are describing.

[ScHpAnKy]

http://realoem.com/bmw/showparts.do?...20&hg=64&fg=15

#7... if that's busted, will that prevent coolant from going through the heatercore? I'm thinking if I can't bleed it further, that may be my issue.

[cormier]

Ya check heater core valve and connection

[eurosport22]

have you grabbed the valve at the heater core and had someone turn the heat selector knob back and forth to see it it opens?

[GunMetalGrey]

Did you buy the cheap thermostats?
Advance always seems to have like a 5 dollar one and a 15 dollar one. Friend of mine kept buying the 5 dollar ones and they were always garbage.

[5Toes]

Make sure your heater core is set to "full hot" while bleeding of course.

I cant think of anything else, lol

I use a pressure bleeding technique that costs a few bucks

[schtozo]

When my coolant temp
Sensor was bad, the gauge used to stay in the bluezone. But then again this doesnt describe your problem but it wont hurt checking.

[MoreMayhem]

Move to a warmer climate where interior heat isn't needed? ;)

Seriously though, maybe there is a blockage somewhere? I don't know how you could even check for that, maybe by flushing the cooling system.

Edit: sorry, I missed that you had already flushed the system.