Another leak this morning

I remmber I was looking for G13 coolant, couldn't find any at SCA, then I forgot about it.
Does mixing the green and red cause major issues?

I just drove for 3 minutes with that.

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You are fine as it will be flushed. but they should not be mixed. The green will stuff everything.

Nulon make a red G12+ coolant you can get at SCA, both concentrate and pre mix in 6 litre.
Nulon Anti-Freeze/Anti-Boil Red Premix Coolant - Supercheap Auto

If you do need an emergency top up (less than 1 litre) and don't have the correct G12+ coolant, I would recommend just using some demineralised water. This would do the least amount of damage. Wrong mix rate would only reduce the boiling point a bit, you can correct it later with some more concentrate. But if you need to top it up there must be something wrong and chances are the whole system will be drained and refilled once the cause is fixed.

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Originally Posted by JustCruisn

You are fine as it will be flushed. but they should not be mixed. The green will stuff everything.

Nulon make a red G12+ coolant you can get at SCA, both concentrate and pre mix in 6 litre.
Nulon Anti-Freeze/Anti-Boil Red Premix Coolant - Supercheap Auto

If you do need an emergency top up (less than 1 litre) and don't have the correct G12+ coolant, I would recommend just using some demineralised water. This would do the least amount of damage. Wrong mix rate would only reduce the boiling point a bit, you can correct it later with some more concentrate. But if you need to top it up there must be something wrong and chances are the whole system will be drained and refilled once the cause is fixed.

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Many thanks for the info, I will make sure not to do this again... I actually thought it is better to top it up with green coolant rather than water.

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Definitely don’t mix different coolants. Rapairs to the cylinder head or any other cooling system part are very costly. Distilled or demineralised water are the best options if no original coolant is available.

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Originally Posted by Transporter

Definitely don’t mix different coolants. Rapairs to the cylinder head or any other cooling system part are very costly. Distilled or demineralised water are the best options if no original coolant is available.

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Thanks, I will make sure to buy the recommended coolant when I get my car back.
They will have to flush the coolant when they replace the pump, correct?
I have also specifically asked them to do that.

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Water pump leaking is fairly common on this engine.

As for an emergency top-up, water is fine until you can get it repaired. Even tap water is fine for a top-up to get you by.

But obviously, don't hold off on the repairs to the point that you're topping it up often enough to over-dilute the coolant.

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Originally Posted by Umai Naa!!

Water pump leaking is fairly common on this engine.

As for an emergency top-up, water is fine until you can get it repaired. Even tap water is fine for a top-up to get you by.

But obviously, don't hold off on the repairs to the point that you're topping it up often enough to over-dilute the coolant.

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I got my car back today, all is good.
The service representative mentioned this as well, the water pump is problematic on this engine across all VW brands, he mentioned it shouldn't fail after replacement.

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