Thermostat issue?

[ashj22]

hi, 1998 saxo vtr blacktop engine. i took the bottom hose of my rad to drain all the coolant, i went to start filling it up with water and it took 1.5 litres of water and its full right up i know it takes much more than this, any suggestions what it could be?

Thanks

[aldred309uk]

hi, 1998 saxo vtr blacktop engine. i took the bottom hose of my rad to drain all the coolant, i went to start filling it up with water and it took 1.5 litres of water and its full right up i know it takes much more than this, any suggestions what it could be?

Thanks

You need to bleed the system, search the forum on how to bleed the system!

[ashj22]

it is a new rad 1-2 months old when it was done it was all bled properly by a mechanic, then 2 days ago this.

was driving my car then all of a sudden the temp needle started going through the roof it heated right up to the red but no light came on, i pulled over opened the bonnet and there was water leaking out from the rad, so i waited for the engine to cool right down then started driving again it took about 1-2 mins before the needle was at the top again. i pulled over again checked the coolant level it was really low so to get me home abour a mile away i just put a litre of water in started driving off then it did the exact same thing.

so do i need a new rad, the rad that is in it is about 2 months old or do i just need to drain it refill with water and antifreeze?

Thanks

[AdamH]

it wasn't bled properly. air was stuck in the matrix I would imagine... take it back to the "mechanic" and ask them to do It properly or do it yourself..

Drain > flush > fill > bleed correctly

[ashj22]

if was not bled properly surely it would of showed itself before a month.

[smiith]

The air will have been working its way upwards, to make an air lock...

Take the thermostat out and slap a new one in, for the sake of a tenner, then refill, and bleed the system yourself.. Loads of guides on here how to do it, and on a saxo, no joke, it's literally taking 4 valve caps off, and putting them back on, lowest to highest..

[Gandi699]

To properly flush the system take the top hose off the stat housing and remove the thermostat then you can flush it with a hose pipe


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[ashj22]

just went to bleed it took the 3 bled screws off had the heaters on full had the engine running let it heat upto 3/4 of the way on the temp gauge and both the bottom and top rad hoses stayed cold, so now does it look like its the thermostat?

[Gandi699]

If you search there's a proper method for bleeding using a bottle and it's real easy. Follow that buddy


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