Spitting Anti-Freeze

Help. My 1990 735i is spitting out anti-freeze.

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Jamel L. Raines,Esq
Imperium Neptuni Regis
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Where from? Are you sure it is anti-freeze?

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Yes Just changed the anti-freeze and have been getting "Coolant Temp" Alerts on my dash. The anti freeze is spilling out from the front left side looks like through a relief valve. just below the hose going into the aluminum casing for the radiator. scared to drive it. It runs hot. Whats going on?? This vehicle is a direct import from augsburg germany. One owner, 162,000+ miles on it. Runs like a dream until the above took place.

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Why not just have your car towed to the nearest independent repair shop or BMW dealership to have it examined by a competent mechanic. Then you will know exactly what is wrong and can get it repaired. Its pretty obvious you are not going to fix your own car, so get it done, NOW!

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Not paying BMW $230 Plus dollars just to change out a damn thermostat.

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"Just changed the anti freeze." Did you change the thermostat too? It sounds like you might have put the tstat in backwards and now it doesn't open properly. The result is overheating.
Spitting out antifreeze is the affect of the problem you are having, getting to the bottom of the Error Message will fix it.

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Got it confirmed just the Thermostat is bad. lucky me. no warped heads or blown gaskets. like i said in the above not paying BMW dealer $230 plus to change the tstat.

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No did not touch the thermostat simply put new anti-freeze in.

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must be an air lock (through the heater) then?

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The M20 has a bleed valve in the top of the thermostat housing - maybe the M30 has the same thing? The radiator on mine also has a plastic bleed screw in the top so that the coolant will get to the top of the engine. I know from experience that if you don't bleed the M20 properly when changing the coolant then you're asking for trouble from the inevitable air-lock which will be in there. I seized the engine, wrecked the pistons and warped the cylinder head shortly after changing coolant for the first time on a BMW resulting in a $300 repair job. A slant 6 can be a real learning experience.
Steve

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Damn. $300 dollar repair job. shit. see thats that job security shit they dont tell you till you mess something up.

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must be. did not design that 1990 735i series, the anti-freeze is spilling out of where I explained in my earlier posts. hopefully I can do an internet search and get some photos of the A/C system to confirm my suspicions.

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the pressure stay up after you have switched off the engine?
Usually this points to a blown gasket. Cylinder pressure manages to get into water ways and pressurise the cooling system, causing leaks and or bursted water pipes. Hope for your sake the problem is less serious though.
If it is a blown gasket, make sure you have the cylinder head skimmed before replacing the gasket. Actually, have the cylinder head checked out by a specialist and overhaul it while you have it off.
MW
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