VRRob 0 Posted November 15, 2011 Report Share Posted November 15, 2011 When my vr gets up to temp it starts throwing water out of the overflow on the header tank. Has anyone got any ideas as to what the problem is? Link to post Share on other sites
michael5556 247 Posted November 15, 2011 Report Share Posted November 15, 2011 How much is in it when it's cold? Is there enough antifreeze? Link to post Share on other sites
cbmotorsport 0 Posted November 15, 2011 Report Share Posted November 15, 2011 system is over pressurising, one make sure the thermostat isnt stuck shut. other causes are headgasket, i.e exhaust gasses pressurising the cooling system. Link to post Share on other sites
hilla 0 Posted November 18, 2011 Report Share Posted November 18, 2011 hey mate, had the same problem a week ago. Check your waterbottle cap, before spending money on anything else. Link to post Share on other sites
cbmotorsport 0 Posted November 18, 2011 Report Share Posted November 18, 2011 what hilla said is also a possibility. sniff test it just to be safe Link to post Share on other sites
VRRob 0 Posted November 22, 2011 Author Report Share Posted November 22, 2011 Thanks for the help guys turns out it was the o ring in the header tank cap. Result. Link to post Share on other sites
cbmotorsport 0 Posted November 22, 2011 Report Share Posted November 22, 2011 happy days . maybe i should stop over complicating things haha! Link to post Share on other sites
VRRob 0 Posted November 22, 2011 Author Report Share Posted November 22, 2011 Yea... you had me worried haha Link to post Share on other sites
Vw_owner 1 Posted November 22, 2011 Report Share Posted November 22, 2011 glad i read this, it never occured to me that if that seal stops sealing, the coolant could effectively boil and over heat as its open to attmosphere, every time i check my coolant i dont even bother checking that seal! might get a new one for what its worth. Link to post Share on other sites
cbmotorsport 0 Posted November 23, 2011 Report Share Posted November 23, 2011 Yea... you had me worried hahaMy bad aha! Link to post Share on other sites
hilla 0 Posted November 23, 2011 Report Share Posted November 23, 2011 those caps should always be checked first. Glad you are sorted out mate. Link to post Share on other sites
Davecrook1 0 Posted November 23, 2011 Report Share Posted November 23, 2011 Mine is losing water too but is there supposed to be release valve or hole on the side of expansion tank? Behind the little black cover? Cause I have water coming out there when I unscrew the cap once the car is hot? Link to post Share on other sites
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