My cordia is losing water, Recently replaced welsh plug but now water is pooling around muffler. Is this a cracked head or something . Any common place they would crack?

You mean the exhaust...muffler is at the back of the car. I would check the turbos coolant lines.

If your using coolant it usually leaves white residue once it has dried and this can indicate where the leak is coming from. Otherwise clean up any water that has leaked, run the car and keep an eye out. Could be the inlet manifold. A member on here has had a lot of trouble with them leaking coolant...they tend to crack underneath. Doubt the head is cracked. Check the welsh plug you replaced.

thanks mate. The water is pooling from the muffler which is the lowest point when cold...more than condensation and i had alook and its dried white .

Does the engine "stutter" and struggle to gain idle when cold?

If so the head has gone.......usually cylinder 3 on the back of the exhaust valve. Easy way to check is remove all the spark plugs and wind the engine over....observe any coolant being pushed by compression.

thanks mate
head is cracked at no 4 cylinder and mixed with oil.....hmm had car 25 years and its a sad day

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Mixed with oil.........that's a head gasket.....easy fix.

new head and all is good. Cordia is up and running again

Was the head cracked or was it just a head gasket that went?

I wish it was only the head gasket but the Head ended up being cracked in 2 places along a previous weld between 1&2 cylinder and 3 &4 cylinder.