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    Water instead of Coolant?

    Is it ok to use water instead of coolant?

    I have a slow coolant leak somewhere and I'm having to refill it every couple of days.

    I was told I could use water instead so I don't go broke.

    Is it ok to use water temporarily?
    -1987 325is coupe(SOLD)
    -1990 325i sedan


    #2
    Fixing the problem would be better, but yes. You can run just water as a short term solution. Always keep in mind that 50/50 coolant mix offers you a higher boiling point, water pump lubrication, and corrosion prevention properties.
    Last edited by TurboJake; 04-11-2012, 01:34 AM.


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      #3
      Classic R3V thread.

      Find the problem with your car and fix it!
      BimmerHeads
      Classic BMW Specialists
      Santa Clarita, CA

      www.BimmerHeads.com

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        #4
        fix yer shit man
        DISTILLED water only punk,
        trust me i have seen the worst of cooling systems after years of hose water rich with minerals and calcium chloride....


        right now in my e21 (tractor) i am running distilled water, half a bottle of water wetter, and 4 or 5 cups of coolant.

        if i lived in a warmer environment i would just use DISTILLED water and water wetter.


        distilled water can be found at safeway, arrowhead makes it in those 2.5 gallon jugs.

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          #5
          What ever rubber hose that is leaking would be a cheaper fix then running water.

          I know someone who used strait water in his E30, and it would boil over. Plus all of the water jackets in your block will corrode, ask Pantless Spency about the hell he's going through.

          Plus possibility of overheating. And if it gets below 32 Degrees your block can crack.
          1985 325e M50TU(Sold)
          1991 318is Slicktop (Sold)
          1990 325is Brilliantrot S50/5 Lug Swapped.
          1992 525i Manual shitbox Winter Beater

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            #6
            it is ok temporarily.

            but find the leak soon.

            keep the coolant system full as oposed to empty always.

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              #7
              you can do the because racecar thing and use 100% water and empty it out + refill everyday :up:
              ლ(ಠ益ಠლ)Be Afraid Of The Future

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                #8
                Originally posted by stamar View Post
                keep the coolant system full as oposed to empty always.
                Another piece of solid advice from stamar!
                BimmerHeads
                Classic BMW Specialists
                Santa Clarita, CA

                www.BimmerHeads.com

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                  #9
                  I ran 100% distilled water in my e28 for years. Had a bad freeze plug. I'd put anti freeze in it for Winter. No problemo.

                  Never fixed the freeze plug. Swapped a B35 in running blue BMW coolant.
                  1974.5 Jensen Healey : 2003 330i/5

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                    #10
                    Originally posted by stamar View Post
                    keep the coolant system full as oposed to empty always.
                    Thanks bro. Should I stop driving my car if my oil pan breaks too?
                    Originally posted by TSI
                    ♫ Rust flecks are falling on my head...♫
                    OEM+

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                      #11
                      there is a reason why we use coolant in our cars.



                      Because the engineers that get paid more than you and have a bigger brain than you did tons of research and development into something like this. Why skimp out? Borrow 20 dollars, get a bottle of coolant, 50/50 it, and take care of the problem. what the hell is so hard about that?
                      1989 325i - 2.7i, Holset H1C, 60lb injectors, whodwho MS-PNP.
                      2012 Passat TDI - DD Duty
                      2008 GMC Yukon XL Denali - Kiddie hauler/grocery getter

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                        #12
                        I used straight water (distilled) last year with no problemos
                        sigpic

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                          #13
                          The PO of my car used straight water for (it seems like) years because there is so much mineral/nasty build up. I had to flush and clean all the components for hours.

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                            #14
                            Originally posted by CabbE30 View Post
                            The PO of my car used straight water for (it seems like) years because there is so much mineral/nasty build up. I had to flush and clean all the components for hours.
                            which components?
                            Originally posted by TSI
                            ♫ Rust flecks are falling on my head...♫
                            OEM+

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                              #15
                              I use 80% of distill water and rest green coolant.

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