Problem - Warning light flashing on temperature level

[Hicks]

Why not just top it up with water???... When mine did this BTW it was the coolent level sensor in the header tank.

But don't you run the risk of diluting the antifreeze? And how do you check that the antifreeze conentration is sufficient?

 

[Pabs]

its the sensor thats a common fault - they usually replace the whole tank.
Some of us cannot fill up the coolant as its already close to its recommended max!

 

[ggoodwin]

Coolant Level - no max mark?

I've got the 'low coolant' warning as per the spate of threads in the last month.

When I look at the level on the expansion tank it was below the min level by a little. But there is no max indicator on my tank. Just a MIN arrow inside a box of xxxxxxx's.

The book shows the tank having a large MAX indicator on the top half of the tank, above the rim round the middle. All I have is the G12 symbol on the top half of the tank.

So where should the max line be.

A - Somewhere above the middle rim of the tank
B - The rim round the middle
C - The top line of the box with the MIN / down arrow in it.

In the short term i've added 1/2 a pint of water, as the twat in Halfords told my wife 'purple G12' would definatley be Halfords blue antifreeze.

GarryG

 

[vern]

The faults happens when cold or cars on a hill, resistance across the 2 probs increase, triggering the fault, cold has a huge effect on voltages too, especially those 12v or less, somtimes a top up with plain water will do, anything upto a pint is o.k and wont dilute your antifrreeze etc, if you cannot be arsed to go to dealers, clean the probes, and this will clear it 50% of time