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  1. djs.69

    djs.69 New Member

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    Location:
    Montacute, Somerset
    Hi
    I'm probably searching in the wrong places, but I cannot find a thread on here on how to Change or Flush Coolant on a Tigra (or any Vauxhall). It's low and is a lime green colour (the VAUXHALL DEALER put in RED in November 2008, before then it was BLUE, now it is LIME GREEN and low).

    Hopefully I'm not the first person to not know how to do this (or maybe I am)!

    If anyone could post up a thread or link on how to do it myself (I don't trust the Vauxhall dealer anymore) I would be eternally grateful.

    Grateful thanks, Dave
  2. Ruperts Trooper

    Ruperts Trooper Geriatric petrol-head

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    Most Vauxhalls need the bottom hose removing to flush the system, although Astra-G (and I assume Astra-H) actually had a drain tap at the bottom of the radiator.

    Undo the drain tap or bottom hose, open expansion bottle cap, allow old coolant to drain. Put garden hose into expansion bottle and flush clear water through the system. Run the engine for a couple of minutes, adding more water through the expansion bottle.

    When all coolant/water has drained out of the system, do up the drain valve or bottom hose. Add half the nominal capacity using long-life coolant (red) through the expansion bottle, top up the system with clean water. Run engine for a few minutes while topping up. It'll take 3/4 starts from cold to fully warm to get rid of all air pockets so check / top up the expansion bottle every day for a week.
  3. djs.69

    djs.69 New Member

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    Cheers, I REALLY appreciate your explanation. Also note it is the RED coolant.

    Just checking, after draining I fill half the bottle with red and the other half with water, then run engine (which circulates it and then top up). The bottle is to be half full at the end of all the top ups (?)>
  4. tavimage

    tavimage Well-Known Member

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    no, when you have reconnected the bottom hose (or done up the drain-tap), you need a 50/50 mix of water/antifreeze, the easiest way to get this right, is to put a litre of water in, then a litre of antifreeze, then a litre of water, then a litre of antifreeze and so on untill the expansion bottle is on the max mark, then leave the cap off the expansion bottle and run the engine at idle (leaving the cap of bleeds any air out of the system) untill the thermostat opens), easiestly idenditied by the fan kicking in (this may take upto 15-20 mins, so have a cup of tea/coffee while you wait), the water level will drop a bit, then turn the engine off, and top back up to the max mark using the 50/50mix, then replace the cap and it is done. Though i would advise to check again the next day after driving it about for a while, then you know its spot on and to the perfect mix of water antifreeze.

    This method of doing it 1 litre of each at a time may take a couple of seconds longer, but doing it this way ensures you have the perfect mix, and is the only way i do it.
  5. VauxMad_Kris

    VauxMad_Kris Respect mah authoritah! VxON Regional Co-Ordinator VxON Club Member

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    Location:
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    pull your bottom hose off the rad and allow it to drain. to flush it simply disconnect both hoses on the rad to flush that out. could even remove it. and put hose in the header tank too.

    dont start the engine up tho, and dot his when the coolent is cold for obvious reasons it burns.

    as for mix depending what you get some stuff espically halfrauds is all ready mixed, if you buy coolent that needs mixing read the instructions on the bottle for best results. Once you connected everything up and filled the system up, leave the engine to run for approx 5-10mins with the expansion bottle top off this will allow any air to hopefully come out the system. but dont rev the car. when the time is up replace the cap.
  6. Torquemada

    Torquemada Zimmer GT for me!

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    Location:
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    Drives:
    Astra G 1.6 Estate.
    You were deffo looking in the right place David, but someties answers take a while to filter through. ;)
    All good advice above.
    Also, you would do well to buy the Haynes Manual for the vauxhall Corsa, Apparently Haynes are Still 'considering' printing a Tigra one as the mechanical components are around 99% identical.
    Here's a link to it on the Haynes website CLICKY. But you just might find one at a local Carboot Sale today or at a charity shop. And don't forget VXON's the For Sale section. Also your local Halfords or other car spares place will probably have them on the shelf.

    The colour of the coolant is just due to which antifreeze product you buy. They all work the same. ;)


    Good luck.
    Pete.
  7. MichaelT

    MichaelT New Member

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    I thought the red stuff was for life? I'd be inclined to find out why it changed colour in just under three months!
  8. tavimage

    tavimage Well-Known Member

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    Red coolant is long life
    Blue coolant is short life
  9. MichaelT

    MichaelT New Member

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    Exactly, not 3months. I'd be asking questions of the dealer that replaced it.

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