Check coolant light comes on when starting the engine.

[davidmiller]

I started the car up yesterday morning, after a few seconds the light came up red and flashing and message saying check coolant in manual. After it warmed up a bit i turned engine off and started it again and light went out. I used the car for a couple of hours with no problems. This morning the light was back first thing. I let it idle a bit then started it up and no light.
Any ideas? The coolant is full.

 

[Bonni]

I started the car up yesterday morning, after a few seconds the light came up red and flashing and message saying check coolant in manual. After it warmed up a bit i turned engine off and started it again and light went out. I used the car for a couple of hours with no problems. This morning the light was back first thing. I let it idle a bit then started it up and no light.
Any ideas? The coolant is full.

Faulty sensor

 

[Burnerman]

Agreed - they are usually in the expansion tank.
Which vehicle is it?
John

 

[Old Salt]

Frost overnight! Is the anti freeze strength correct.

 

[davidmiller]

Thanks everyone.

Agreed - they are usually in the expansion tank.
Which vehicle is it?
John

B6. I just looked at videos on utube. Theres several showing the sensor in different places. It seems you take a few bits out to get to it, including battery.

Frost overnight! Is the anti freeze strength correct.

Coolant is due for a change so I think it's a must.

 

[Markbon]

Thanks everyone.

I just looked at videos on utube. Theres several showing the sensor in different places. It seems you take a few bits out to get to it, including battery.

Coolant is due for a change so I think it's a must.

A top up of coolant might be enough. with your car a lot of them have coolant for life. Do you know which type of coolant you have?

 

[norseman]

Joys of modern electronics, I've just discovered that unless my car's tail lamp bulbs are exactly the right type (not just the correct fit/wattage) the 'check tail lamps' warning on my cluster is still showing although the lamps are illuminated.

I say 'modern' though the car's design is 30 years old.

 

[davidmiller]

A top up of coolant might be enough. with your car a lot of them have coolant for life. Do you know which type of coolant you have?

G12 I believe. I was going to get a prestone one from euro car parts. Apparently you can mix it with anything and put it in any car.