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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 10-24-2004, 04:19 PM   #1 (permalink)
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I have a 1992 325i , with a check coolant level issue. My coolant is green. I checked my manual and it describes a certain kind of coolant. I have the kind it says, and it seems compatible, but its orange/red. Can I/Should I mix it, or get the green stuff at the dealers high price?

Your help is appreciated!
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Old 10-24-2004, 04:38 PM   #2 (permalink)
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i believe the dealer has the red kind...and it is well worth getting it from the dealer. read the posts on coolant. the green stuff is not as healthy for the car as original BMW coolant is. It sticks to the hoses and connectors as a white residue. i'd say pay the extra bucks, but get the good stuff! original BMW coolant will not corrode in your lines, and will keep the system clean!
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Old 10-24-2004, 11:51 PM   #3 (permalink)
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I got some BMW coolant and it was blueish.
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Old 10-25-2004, 01:04 AM   #4 (permalink)
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The dealers sell the BMW bluish coolant which has been specially formulated to run in their aluminum heads.
If you're in a temporary situation it'll be ok to mix for a while, but in the long run I would drain the mix and put in the BMW stuff. It's $22 CDN at the dealer, so it's only twice as much. Besides it's only something you every 50,000kms.
Worth it in my books.
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Old 10-25-2004, 01:24 AM   #5 (permalink)
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i think bavauto.com has coolant for sale on their site go check that out, that should be what you should get!

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Old 10-25-2004, 09:31 AM   #6 (permalink)
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NO!

Most likely you have some aftermarket coolant in there, IE: ziex or whatever.
If your worred about what is REALLY in there, do a full radiator flush and buy whatever antifreeze you want. I've got some regular ol aftermarket antifreeze that you can get at any gas station and it works just as good as any.
If you are worred about how it will work with the aluminum head or wahtever, you can always just take it to the dealer and have them deal with the coolant issue, or just buy the antifreeze from them and flush it yourself (or at a cheeper mechanic place that you know)

If your unsure, just get the dealer stuff and flush it. Mixing antifreeze types is bad news.
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Old 10-25-2004, 01:05 PM   #7 (permalink)
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Not a good idea to mix antifreeze's...

If they're incompatible, they can turn into a really nasty white sludge and block your entire cooling and heating system... If you're ever unsure what type is in there, get the system completely flushed out and refill it with a new coolant mix that doesn't have to be green...

Good luck...
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Old 10-25-2004, 01:24 PM   #8 (permalink)
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Word on the street is use only BMW coolant...or any brand that is "silcate-free"? It prevents that "green goo" from forming.
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Old 10-25-2004, 09:19 PM   #9 (permalink)
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once again, whatever in the hell is in your radiator, make sure you put the same type in. That's all I got to say.
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Old 10-26-2004, 04:30 PM   #10 (permalink)
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No sooner has this question been brought up on here, a car's recovered in with a major overheating problem. He's recently topped up his cooling system with an aftermarket antifreeze and 'BEHOLD' the cooling system is completely blocked with a rather nasty looking sludge that's proving a bit of a nighmare to flush out, apparently caused by exactly what RIBEMR26 has just described.

If your gonna listen to anyone on this one if you're gonna add to your existing coolant, listen to this guy because it would appear he's spot on...
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Old 10-26-2004, 10:06 PM   #11 (permalink)
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When I went to change my coolant last week I had the non-BMW coolant (green stuff) I noted some of the buildups you all were talking about, spent more than hour trying to flush it out. But, I was still a bit afraid that any leftover residue would not mix well with the BMW coolant, so Im sticking with the green stuff for now.

Maybe Im a bit overconcerned with the mixing there..... but as long as you change your coolant yearly, don't mix, and used distilled war I don't think you will every have a problem with the green stuff.
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Old 10-26-2004, 10:50 PM   #12 (permalink)
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i use the orange stuff
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Old 10-27-2004, 09:05 AM   #13 (permalink)
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I wrote a pretty large FAQ on BMW coolant and what it consists of ... and some alternative on it... it is in the FAQ forum...

Good Luck...

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Old 10-30-2004, 03:12 AM   #14 (permalink)
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There is a coolant that can mix with blue/green/orange. All coolant's do the same thing. Its just a matter of mixing them that can be bad. Just buy the coolant that can mix with both and you should not have a problem.

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