Coolant level light.

[STI65]

I have a 2006 Polo GTI and a couple of times the coolant level light has come on just after I have started the car.
If I then restart the car it goes away. It has been pressure tested and there is no leak. What would it be and how do I fix it? Anyone else had a problem like this?

[h100vw]

Is it short of fluid, you didn't comment on that?

Gavin

[STI65]

The level seems to be ok. The light has only come on 2 or 3 times, but intermittently.

[noone]

You only need to drop 50ml to have the light come on. I top up 2-3 times a year, think I have a very small leak.
for me its cheaper to buy a 5L concentrate and have 600ml in the car made up.

lifetime supply

[STI65]

Very good idea. Thanks noone.

[noone]

FYI, to anyone reading this thread about coolant, I saw this product linked as one of the few parts that meet the VW standards.

Cant see the thread I saw this in, but the product page shows its G12 / G12+ approved

[PassatB6]

I have a 2006 Polo GTI and a couple of times the coolant level light has come on just after I have started the car.
If I then restart the car it goes away. It has been pressure tested and there is no leak. What would it be and how do I fix it? Anyone else had a problem like this?

The chances are that its a faulty sensor. I have the same problem in my Skoda and the dealership is replacing the sensor under warranty. If it were just a fluid level problem then the light would come on at other times. The symptoms of coming on once or twice after you start in the mornings and not for the rest of the day is typical of reports of the sensor issue. An alternative reported on some forums is to brush the sensor clean with an old toothbrush as I have heard it can be related to a build up of residue. Not sure where it is, sorry!

[noone]

the sensor is in the reservoir, not an issue on our cars that i'm aware of. You only have to be 1mm under the line and it will read low, when the coolant is a litte warm, it will expand and thus the light does not come on if its been warmed.

[STI65]

King among men noone. Thanks very much for the info.

[PassatB6]

the sensor is in the reservoir, not an issue on our cars that i'm aware of. You only have to be 1mm under the line and it will read low, when the coolant is a litte warm, it will expand and thus the light does not come on if its been warmed.

The sensor is an issue across a lot of VW models including the Polo. Its been mentioned before on the Polo thread here. Also in other forums.

Coolant Light flashing on start up.

Club Polo Forum > Coolant warning light