temp light

[MidLifeCrisis]

Apologies - didn't mean to under-quote

The light is not important no.
As long as you check the coolant level in the header regularly.
it should be full to the brim

... but I still think this doesn't guard against a sudden coolant loss while driving.

You could make the assumption that the coolant loss would cause the temp sensor to read a 'different' value and that would show on the gauge but would it read high or low ... and would the driver notice in time ... ??

I assume the coolant level sensor is there for a reason (even though it probably causes far more false warnings than real ones!) But as always YMMV !!

[kevtherev]

Catastrophic coolant loss is very very rare.
The light would blink but by the time you notice it ... it's all over.
If it ever happens (and I have seen it) the amount of vapour behind the van would be far more noticeable than a blinking led the size of a match head.
The OP's coolant seems to be behaving itself, so just a little extra vigilance should suffice until it can be fixed

[ghost123uk]

Catastrophic coolant loss is very very rare.
The light would blink but by the time you notice it ... it's all over.
If it ever happens (and I have seen it) the amount of vapour behind the van would be far more noticeable than a blinking led the size of a match head

I had a (fairly) major coolant loss (a good few years ago) on the way to "AngleseyStock". I didn't notice the steam (ok, water vapour) but I did notice the light. Fixed it at the side of the road and carried on my way As said, rare but can happen. I would not be without that light myself (and I test the sensor occasionally too). Just my two pence worth.