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Battery Coolant

Discussion in 'Maintenance & Repair' started by Rich M, Aug 15, 2017.

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  1. Rich M

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    I'm sure we'll know soon enough, but is there a maintenance interval on the battery coolant?
     
  2. KirbyTurbo

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    • Informative Informative x 3
    • Rich M

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      Thanks! Just what I was looking for.
       

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    • Spinball

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      Wow that is a dream list for the DIY crowd. My 3 Series recommended maintenance chart was not fun at all!
       
    • Idur

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      I heard BMW tunes its maintenance plans to keep every part in the car as long as possible, rather than tuning it for fewer maintenance sessions .
       
    • arnis

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      4y/50k miles seems reasonable.
      Definitely no more than 5 years. No matter how little you drive.

      Brake fluid is 2 years. Could safely be up to 3.
      So it would be simple to change the second time with coolant.
      And reduction gear/differential oil also lasts like coolant, 5 years / 100 000km.
      It would be simple to do it with coolant. After 4-5 years of use.
      Cabin filter life totally depends on location. For me, a year. For some, 2 years.

      AC gas/desiccant pack does not require replacement. Exactly like with refrigerators.
       
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      • Sandy

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        If the reduction gear/diff fluid is synthetic than it may be lifetime after the initial 1 year/20,000 km change. Eg: Fords rear axle synthetic is lifetime.
         
      • arnis

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        It doesn't matter what fluid is in there. This cavity is not air-tight. Moisture gets in.
        Also no metal-metal contact is perfect. There is always wear, even with no friction happening.

        Lifetime - is a word, which is not strictly defined. Usually, for car manufacturers, lifetime ends when warranty ends.
        100 000 km / 60 000 miles is the most common number. Therefore we can keep things easy and we can
        also be slightly more specific (in case we actually want to keep the vehicle running for longer than one "lifetime").

        Some Russian/Ukrainian mechanics did record Leaf reduction gear oil change.
        We can see that oil is not clean red. And also the magnet - slightly covered with shavings.


        PS: majority of those shavings should come during initial run-in year. Though oil degradation is non-stop procedure.
         
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        • Sandy

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          I'm talking about 100% SYNTHETIC gear oil. Installed it at 5,000km in my differential. Ran it in my track car for 44,000 kms before installing a Torsen T2R diff. Fluid came out clean and still red. Blackstone Labs confirmed it was in excellent shape. I sent samples of engine oil, tranny fluid and diff fluid for anaysi on my track car.
           
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          • Mike

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            I look forward to the Bentley Publishers (or similar) do it yourself manual for the Model 3.

            If folks want to pay Tesla $2,500 for four years of routine maintenance, that is their choice. I want the choice to be able to do this routine stuff myself.
             
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            • JWardell

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              Bently manuals are the best! Unfortunately they don't make them for most cars (they literally buy a few of the cars themselves and tear them down completely). Currently they do not have any books for Teslas, so I think we should send them a note requesting they do so.
              http://www.bentleypublishers.com/feedback.htm?to=support

              PS In looking over their web site, which I probably haven't done in 10 years, I just realized they are located right up the street! I think I will need to pay them a visit.
               
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              • arnis

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                I'm convinced that they will not tear S/X as people buying vehicle that expensive are not going to do fluid changes on those themselves.
                Though Model 3 is another story. Bentley could "hint" "non-believers" how simple Model 3 service really is.
                 
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                • Mike

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                  Please do :)
                   
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                  • Mike McKelvey

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                    DIY here I come!

                    Until I leased a Nissan Leaf, I never heard of changing the brake fluid....feels like "made up maintenance." And I don't agree with the "auto-brake regeneration puts significant stress on fluid properties."
                     
                  • garsh

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                    Brake fluid should be changed regularly, but it's more of a "once every 5 years" thing, not every year. And I agree, regeneration doesn't affect brake fluid one bit.

                    I've been testing my fluid with dip strips every year. The fluid still looks really good - I haven't changed it yet.
                     
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                    • Mike McKelvey

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                      Thanks for the info, Garsh. My basic point is I never worried about it on any previous car, and I own them for 10-20 years.

                      I tell you I won't miss changing the oil at all!!
                       
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                      • arnis

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                        My fluid lasted for like 3 years. Though I live in worst climate imaginable.
                        Every year is overkill pretty much always. 5 years can be too late.

                        80s vehicle is something different.
                         

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