A friend has a W reg 2.5 CDX estate, I've not yet seen the car but by telephone this is the situation...
Symptoms are ... leaking water at a GREAT rate, apparently leaves a slug trail when moving !! Oil in header tank, water on dipstick, mayo on oil filler cap, and when running a "ticking" sound.
I don't know how many miles it has done since the problem started, but I do know his wife drove it home whilst leaking water at a great rate.
Local garage (none-Vauxhall - just a village garage) has diagnosed an irrepairable head gasket failure and quoted £2200 for a new engine !!!!!!!!!!!!!!!
My thoughts are possibly an oil cooler failure ?? and the "ticking" caused by valve lifters with no decent oil in them ??
I'm hoping to get over to him during the week and put a compression tester on it, does anyone have any other thoughts that may help ??
Regards.. Entwood