Vauxhall Astra

[wendymunro]

The heating in my car wasn't working checked the water level and realised there was no water in, it's now at it's correct level... any idea's what may be wrong?

[woodchopper]

Could be leaking from the following - radiator, heater matrix, various pipes, head gasket, water pump.
If there is a leak have a look for white salt deposits that usually get left where it is leaking.

[Toureman]

When did you last check it?

[wendymunro]

I've checked the level this morning it's dropped about an inch below the max mark, so I've topped it up again.
There's no visual evidence of a leak... but I do have heat

[ummmm]

try some rad seal

[ianess]

Oh dear........you may have a blown head gasket.
Are you blowing clouds of steam out of the exhaust? If there's no external sign of a leak then the water may be getting into the combustion chamber. Keep your fingers crossed.

[wendymunro]

Nothing coming out of exhaust...

[POOING]

It could be something like the cable has come off the heater valve, so the valve is stuck on cold. so check the operation first.