why is my m42 still over heating?

[mo diesil]

heres where im at now i spent all day messing with the cooling, i re drained and bled the system three times still no heat still going to the 3/4 mark
im about to replace the water pump do an electric fan mod and see if that helps. if some one cant help me, im really at a loss here its not like this is my first ball game ive been working on e36's and other bmw's for over 3 years


i just want to drive my god damn car!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[Ryann]

Run the engine with the heater on until it's warm, then drain all the coolant. Now measure out EXACTLY 7 qts. 50/50 mix into a container. Now restart the car (with the heat still on) and begin refilling the rad. reservoir out of the 7 qt. container. At first it will be easy to fill, but as you've put more and more coolant in, the reservoir won't gulp coolant as rapidly. At this point, begin repeatedly squeezing the upper radiator hose until bubbles gurgle up into the reservoir, making more room for coolant. Repeat this process until all 7 qts. have been added. Now shut the car off and go inside and have a beer and wait for the car to completely cool down. Go back out and check the level in the reservoir. It should be a hair above the "Cold" line. If it's way above, you've still got air in the system. I've used this method successfully several times.

Although, you could also have a simultaneously faulty inst. panel ground and broken heater valve.

[mo diesil]

im starting to lean toward heater valve but haveno idea where it is

[Ryann]

#7.

http://realoem.com/bmw/partgrp.do?mo...18&hg=64&fg=15

[Ryann]

http://www.r3vlimited.com/board/showthread.php?t=98782&highlight=heater+valve

Found it with r3v search. :)

[mo diesil]

Oh I see should I just replace if or just ope. It

[Dj Buttchug]

i completely deleted mine. no issues to report

[Ryann]

i completely deleted mine. no issues to report

San Diego fucker!

[mo diesil]

so im still up in the air on what to do im thinking of doing the water pu,p just for the hell of it, will it solve my problem i dont know but it could help
im almost at the point of bypassing the core and seeing what it does.

[mo diesil]

i for got to mention i crashe a day or so before this started, hit a really big snow bank ohh and right after the belt for the alt and water pump broke, luckily i was not even a 1/8 mile from home

[mo diesil]

So yesterday I checked the heatercore coolant was circulating through it, still does the same thing actuly when the gauge read 3/4 I took the cap off and put a thermo inthere it. Only read a bit over 140 "degrees. Pulled the rad and water pump water pump was a metal impellar item and did not appear defective
Im starting to think the cluster is faulty. And will pull that tomarrow and mess with the wiring And grounds back there And if that doesn't work I'm prob going to put one of my spare motors in it m52 or small block chevy

[mo diesil]

So yesterday I checked the heatercore coolant was circulating through it, still does the same thing actuly when the gauge read 3/4 I took the cap off and put a thermo inthere it. Only read a bit over 140 "degrees. Pulled the rad and water pump water pump was a metal impellar item and did not appear defective
Im starting to think the cluster is faulty. And will pull that tomarrow and mess with the wiring And grounds back there And if that doesn't work I'm prob going to put one of my spare motors in it m52 or small block chevy

[immajackuup]

tighten up the nut on back of cluster,used to have this problem.

[dkbmxer002]

before you did all this did you take a temp measurement with any other gauge other than the stock one?

[mo diesil]

before you did all this did you take a temp measurement with any other gauge other than the stock one?

Yea ii put a thermonotor in the expansion take it was around 160