Coolant Question - Supercharged RR

[NDA]

Just a quickie question - I have a 2 year old RR Supercharged and despite the coolant level looking at the correct level under the bonnet, when driving I sometimes get the "Ping! Check Coolant Level".

Before taking to the garage for a 3 hour wait, does anyone have any suggestions?

It doesn't appear to be leaking anything - sensor knacked maybe?

The engine temperature is 'normal'.

Thanks

N

[P100]

Get the anti freeze mix checked!!
It could be the sensor but you must have a 50% mix or the sensor goes live.

Cheers Roy

[NDA]

Thanks Roy - I think you're spot on as it turns out.

I 'roughly' mixed some coolant in there about 4 weeks ago - splosh of this, splosh of that, not realising it was kind of critical.

I assume no damage will have been done, simply that the mix isn't perfect?

Is it tricky to rebalance the mix?