Occasional coolant light !

[earthdweller]

I’ve had the coolant warning light cone on twice now .. but only on starting the car having not used it for a couple of weeks

If I turn the car off .. the turn it back on the light does not come back on

I’ve checked the levels etc and can’t see any problems

Any thoughts ?

 

[ph001]

First thing - does the float all look OK and move freely when you remove the cap?

If you are 100% sure you are not losing coolant then you have to assume a sensor problem - this sits on the bottom of the expansion tank, you can see it clearly with the undertray off.

Personally I would add some coolant right up to the max level and see how you go. Any coolant loss is almost certainly a hairline crack in your expansion tank.

 

[Ducklakeview]

Or, perished O rings where the expansion tank fits to the rad, this was my problem..

Mike

 

[earthdweller]

Thanks guys I’ll have a good look and update

But I’m in lanzarote at the mo so it will be next week

 

[Ducklakeview]

Thanks guys I’ll have a good look and update

But I’m in lanzarote at the mo so it will be next week

Typical Z owner, on hols and thinking about the car...

Mike

 

[Scooba_Steve]

:lol:

 

[midnightrambler]

My coolant light just came on for the first time. Coolant was low, so I added. Will check it in a couple of days to see if I have a leak.
2007 3.0i

 

[earthdweller]

As I say it only happens when the car has been left for over a week without being used

 

[earthdweller]

Thanks guys I’ll have a good look and update

But I’m in lanzarote at the mo so it will be next week

Typical Z owner, on hols and thinking about the car...

Mike

Yup ... Cold beer in hand sitting opposite the wife and thinking about the Zed and not the view

Andy

 

[silverzed]

hi, I have the same problem, the coolant light comes on when the engine is cold, switch ignition off and on again , the light is off. going to check the coolant level and any signs of leaks this weekend :?

 

[ph001]

It's normally pretty simple - if the coolant is low it's either a crack in the expansion tank or perished o-rings where the expansion tank fits to the rad. If coolant level is fine but you have a light on it's usually the sensor (fitted to bottom of expansion tank).

 

[nupespr84]

It's normally pretty simple - if the coolant is low it's either a crack in the expansion tank or perished o-rings where the expansion tank fits to the rad. If coolant level is fine but you have a light on it's usually the sensor (fitted to bottom of expansion tank).

I know this is an old thread but thanks for the information. Now I need to by the sensor and replace it or get my mechanic to do it.

 

[Mr Tidy]

I know this is an old thread but thanks for the information. Now I need to by the sensor and replace it or get my mechanic to do it.

Wow - top marks for some serious lurking! 1st post more than 7 years after joining.

Now you've broken the ice I'm sure an introduction and some photos on the Newbies section would be appreciated.

 

[AveZ4coop]

I know this is an old thread but thanks for the information. Now I need to by the sensor and replace it or get my mechanic to do it.

Wow - top marks for some serious lurking! 1st post more than 7 years after joining.

Now you've broken the ice I'm sure an introduction and some photos on the Newbies section would be appreciated.

:ROFL2: