Coolant low light- fault

[bigwinn]

Still trying to sort this one

When I replaced the expansion tank I ended up with a coolant low light and assumed I had an air lock

Not so- bleed was good and checked that.

I have tried 3 different sensors and all have the same outcome- light illuminates on the dash to say low coolant, when the sensor is in place AND when its removed from the slot

I've checked the loom and cant see any immediate issues

Next suggestions please? Assume worth testing the switch to see if power flowing across the terminals? is it a constant powered circuit that collapses?

 

[enuff_zed]

So definitely not a stuck float then?
You've done all that faffing about with a magnet?

Have you tried bridging the plug with a piece of wire?

 

[bigwinn]

No I think I’ll try the bridging next

Tried several magnets and gentle tapping

 

[enuff_zed]

No I think I’ll try the bridging next

Tried several magnets and gentle tapping

Stuart, remember I've met you! Gentle tap?????

 

[bigwinn]

Finesse isn’t a tool