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#1 (permalink) Old 04-13-2006, 09:37 PM
NZA
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Overheating

I did a couple of searchs for threads others had posted on this issue, and had some extra questions...

Should the coolant be leaking while driving or once its turned off? Im going to try and work on the car tomorrow and find out what the problem is before i have to give it to a mechanic. i figured the first thing to do is figure out if its leaking. therefore im gonna drive it around the block a few times and then stick a big piece of cardboard under the car and see if any fluids leak on the cardboard.

also what the hell should coolant smell like? and what color shoudl the coolant/liquid in the radiator tank be?

what type of coolant is best to add? i know i should add the 50/50 kind, but any specfic brand or something i should look for?

and lastly if i need a new radiator system, how much is it roughly to get a new radiator, hoses, and water pump installed?

thnxs for the help people

Last edited by NZA; 04-13-2006 at 09:55 PM.
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#2 (permalink) Old 04-14-2006, 12:42 AM
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coolant typically "leaks" after you have turned the vehicle off and the coolant comes back to the expansion tank....other leaks will have to be addressed seperatly (best by pressure test)...coolant should have a sweetish smell (due to the glycol) used coolant (time to change typically) has a "fishy" smell. Color should be either green or blue (blue being BMW specific fluid green being any other ethylene Glycol fluid) worst case being color brown (WAY OVER DUE FOR FLUSH IN THIS CASE)
The most important thing about buying coolat is making sure it is an Ethylene Glycol base (NOT DEXCOOL!!) I alway suggest BMW coolant (4year fluid vs typical 2yr off the shelf stuff) as far as the pricing goes I don't want to give you an incorrect assesment. Good luck

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#3 (permalink) Old 04-14-2006, 12:59 AM
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drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute drz has a reputation beyond repute
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^^ She pretty much covered it. I also highly suggest that you stick to BMW Coolant.

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#4 (permalink) Old 04-14-2006, 08:25 AM
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Aite Thnxs....hmm I Think The Coolant May Be The Problem, It Was This Browny Color, Didnt Give Of A Smell As Far As I Could Tell....

Im Gonna Have It Flushed Out And Checked For Leaks..hopefully This Will Stop The Overheating

Again Thnxs For The Help People
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#5 (permalink) Old 04-14-2006, 06:24 PM
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Deffinatly flush it, if it doesn't have a smell it's most likely pure H2O! Which would explain ALOT! Good luck and let us know!

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#6 (permalink) Old 04-14-2006, 09:38 PM
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^what do u mean by it explaining alot? i hav been using water past few weeks when my coolant has gone down. Is that the whole problem as to why its overheating so quickly?

sorry im a total dumbshit when it comes to cars i just learnt how to change a tire like 2 months ago..lol
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#7 (permalink) Old 04-14-2006, 10:21 PM
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coolant is at least a 50/50 mix for a reason, not saying that is what is causing the overheating situation (especially if you are loosing coolant like that) Water cools the best but it's boiling point is so much lower without coolant it doesn't work for long periods of drive time and for a much more obvious reason there are not anti-rust compounds in water (which explains the brown crappy color) Get it flushed and pressure checked (find where you are leaking!) and you should be back to normal operating range.

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#8 (permalink) Old 04-15-2006, 03:20 PM
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definetly change that, get two jugs of bmw blue juice and about three of distilled water and do a 50/50 mix. if you ask the why, I think there is a thread that covers all of that. it also could be your radiator since mine was leaking, sometimes at a point that you cannot see it. These radiators have plastic tanks so they get replaced at about anywhere from 80,000 to 100,000 miles.

Maybe you should also change thermostat and thermostat housing while you're at it. And since summer is coming, check your hoses. Remember to bleed it when you are done putting everyting together.
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#9 (permalink) Old 04-15-2006, 05:24 PM
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ive decided im gonna flush the radiator out myself....

just one question tho. how much coolant/water shud i refill, how much can a 95 bmw 325i take? i was reading a tutorial and it said u add a 50/50 mix of water and coolant but it didnt state how much (liters or gallons) i would need..

oh and if any1 has any tips on flushing the system please let me know!

thxs
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#10 (permalink) Old 04-15-2006, 07:01 PM
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Quote:
Originally Posted by NZA
ive decided im gonna flush the radiator out myself....

just one question tho. how much coolant/water shud i refill, how much can a 95 bmw 325i take? i was reading a tutorial and it said u add a 50/50 mix of water and coolant but it didnt state how much (liters or gallons) i would need..

oh and if any1 has any tips on flushing the system please let me know!

thxs
enjoy

http://www.pelicanparts.com/bmw/tech...lant-Flush.htm

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#11 (permalink) Old 04-15-2006, 08:58 PM
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The coolant should never be leaking get the already mixed coolant. I think if you were to mix it your self you need distilled water to mix it.. not just any water
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#12 (permalink) Old 04-15-2006, 09:38 PM
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Quote:
Originally Posted by Chandler
The coolant should never be leaking get the already mixed coolant. I think if you were to mix it your self you need distilled water to mix it.. not just any water


u can use filtered water from ur house or water bottles from any grocery store as long as its pure

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