Hi,

I'm a noob around these parts but hi anyway from England

I got a spurious "low coolant" on the MID this morning and so had to use the wife's Nissan (yuk!)

Just got back and checked the coolant level and when cold at about 15 dec C outside, it looks like it's full to me (by full I mean the circular float seems to be at top touching the vertical plastic ridges that stop it floating right to the very top of the tank). When measured from the top of the open coolant cap down to where the liquid coolant is, it measures approx 3 and a tiny bit inches.

I also tried the key in the ignition again and this time got no warning message at all.

There's no evidence of stuff in the engine bay or on the floor either.

So, what do you wise chaps reckon? A sticky float or something?

Cheers,

Joe

 

Uploaded pic of tank level, looking at it again if the white float can come up more then there is room for maybe half an inch more.

 

Well I'm making an **** of my first thread here - sorry - can't find an edit message button.

It's actually about a third of an inch to the top of the round black post that the white float goes around.

 

You can fill the reservoir to the filler cap and it will discard the 'extra' into the atmospheric catchment tank to be drawn back in to the system at 'cooldown' if the cap is operating correctly.

A slight amount of coolant should be moved back and forth in normal operation.

bob gauff

 

As Bob's advised, the coolant should completely cover the float sensor mechanism.

 

If your problem persists have a look here
https://www.jaguarforums.com/forum/x...olant+resolved