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Leaking coolant

Discussion in 'Roadster' started by asgard, Aug 18, 2013.

  1. asgard

    asgard Member

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    My CPO Roadster #474 is leaking coolant already. I just picked it up from Menlo Park two days ago. The reservoir is below min and there is a small 3inch diameter puddle of coolant near the rear wheel directly below the reservoir. Should I drive it to service or have them come pick it up?
    It's a 30 mile trip to the nearest dealer.
     
  2. wiztecy

    wiztecy Active Member

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    That's odd that it leaking coolant... Best to call Tesla and let them advise the right route to bring it back in. You could drive it in but carefully monitor the battery temps, if you can still see coolant in the reservoir you should be ok... but if you don't know the root of the leak there could be a failure that may dump all the coolant out while you're on your drive.

    Curious, where abouts is it leaking? Can you shine a flashlight with the trunk open and down also look from either side of the rear wheels towards the inside of the pack. The cooling lines also run along the passenger side of the Roadster to the front as well as across the bottom of the battery pack itself.
     
  3. asgard

    asgard Member

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    wiztecy:
    The coolant leak appears to be from the 0.5 inch pipe that plugs into the bottom of the reservoir.
    Nothing is leaking along the passenger side that I can tell.
    What cruising battery temp should I be looking for?
    Thanks!
     
  4. wiztecy

    wiztecy Active Member

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    The battery temp is fine as long as it stays in the Dark Blue / Light Blue blocks. I'd be a little hesitant to drive it if its in the yellow blocks right after the last light blue block on the Temperature VDS screen. You can also call Tesla to see what type of coolant it takes, its nothing special. You can pick up some of that coolant, top it off, and drive it into Tesla's shop if you're comfortable.
     
  5. asgard

    asgard Member

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    It uses a standard PG (propylene glycol, not the toxic ethylene glycol) fluid which was a bit more expensive but not by much.
    I drove it over to the Menlo Park service and battery temps stayed blue, though at the upper end of blue.
    The PEM stayed at the top end of the blue throughout but it does not seem to use any coolant for cooling.
    It turned out to be a leaky reservoir which they replace in about an hour. I was very surprised that they
    had the reservoirs in stock.
     
  6. vfx

    vfx Well-Known Member

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    I had a mouse eat though mine. Apparently they are very tasty. :)
     
  7. hcsharp

    hcsharp Active Member

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    You want to be careful to quickly clean up any spills and leaks. Many animals find it very sweet tasting including your beloved pets who will die if they drink much of it.
     

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