Low coolant alarm

[al & chris]

On these cold mornings my low coolant alarm comes on for a while even though coolant is not low. It is ok once engine is warm or when weather is warmer. Seem to remember something on forum about build up of something on screws in expansion tank. Any ideas

[daveblueozzie]

The screws might need cleaning, also is the coolant a strong enough mix, that can also be a cause.

[Dr Fingers]

Me too..same thing in colder weather, soon warms up and LCA reverts to normal.

Not worried, I always stick a finger tip in (cold!) expansion tank each morning: it's my personal 'digital' LCA

Derek

[haydn callow]

Below 5C it is normal for the alarm to mutter.......you could remove the screw and wire brush it.....it might reduce the muttering.......don,t worry

[chipvan]

ours does too..

but goes after warm as above

[mikeonb4c]

Hmmm - never had any trouble with mine. Are people using pink (organic) coolant? I use old fashioned ethylene glycol (blue-green in use).

[ADAMD]

Mine did that and got worse and worse until it took about ten minutes to go off.
Five minute job to take out screws and wire brush, now cured.

[al & chris]

Hmmm - never had any trouble with mine. Are people using pink (organic) coolant? I use old fashioned ethylene glycol (blue-green in use).

Yes we are using the pink stuff

[haydn callow]

The pink stuff does coat the sensor screw for a couple of weeks after it is put in the system.....clean the screw and all will be well