Coolant Level Switch

[sjanisz]

Hi Everyone,
A bit of advice would be appreciated.
Only recently started happening.
First thing in the morning I start the engine and reverse out of garage.
After a about a minute the low coolant warning comes up in the tacho (yellow radiator symbol).
I turn off ignition, check actual coolant level in expansion tank (it's about 3mm below the 'COLD' mark) and restart engine with no further problems.
I have checked plug on level switch and given it a good squirt of switch cleaner, expecting no further problems but it's happened about three times now.
Any suggestions before I take it to the Dealer and demand a new level switch ?

Thanks
SJ

[Gsi3.2]

nope, it's either a duff switch or a canbus thingy again.. nothing else involved in the system.. Water may have got into the part of the switch that makes or breaks the contact..