thamouse1981 0 Posted December 22, 2004 i have a 95m vr6 which appears to be losing a bit of coolant after about 1000 miles the tank would go from nearly full to nearly empty having looked through the receipts it has had two radiators in 5 years the last one being a year ago where it had all new pipework thermostat housing and thermostat when driving temp reads around 90-95 when stationary in traffic goes up to 98-100 having looked around the engine today all i could notice is that there was antifreeze on the rim of the expansion tank which appeared to be coming from the overflow any help/info/advice Quote Share this post Link to post Share on other sites
Andy Brookes 0 Posted December 22, 2004 Take the cap off and have a look inside, you will see an o ring around the centre plastic diameter within the cap. Mine had popped out of its groove and was causing the above problem. The cooling system needs to be pressurized to work at high temp's, if this o ring is damaged or not sitting correctly, the system has a leak and therefore boils and dumps all the coolant out off the expansion tank overflow. The new cap only cost me £3.50 and all is fine now. Almost seems to simple to fix!!! Quote Share this post Link to post Share on other sites
Andy Brookes 0 Posted December 22, 2004 PS, my VR had been losing a little coolant for a while, so i'm guessing this o ring had not been seated correctly for the corrisponding amount of time. On inspection the old oring was very lose and baggy, the new o ring on the new cap in tight. Quote Share this post Link to post Share on other sites
thamouse1981 0 Posted December 22, 2004 the tank still hisses when opened after around 3 hours is it still possible to store some pressure even when this ring is damaged?? Quote Share this post Link to post Share on other sites
fast x 0 Posted December 22, 2004 ok guys have a look on your auxiliary pump!!! or water pump!!! an as for the tem going a bit high get the fan temperature switch from the dealers cost about 20 inc vat!!!! i just done it my self and is runnig as normal again. philip!!! Quote Share this post Link to post Share on other sites
thamouse1981 0 Posted December 22, 2004 temperature seems normal enough to me where is the position of the aux water pump though?? Quote Share this post Link to post Share on other sites
corradovr6123 0 Posted December 23, 2004 Check out the plastic coolant pipe (aka crack pipe)!! Known weak point on VR6 http://the-corrado.net/.archive/forum/viewtopic.php?t=18588 Paul mailto:[email protected] Quote Share this post Link to post Share on other sites
thamouse1981 0 Posted December 23, 2004 ok i think i have found it to be leaking from the pipe that goes to the top of the radiator where it is bolted in with two bolts there is resisdue around there and when i squeeze the pipe bubbles appear there what is the repair for this?? any info would be greatly received as i need to drive her tonight Quote Share this post Link to post Share on other sites
Andy Brookes 0 Posted December 23, 2004 There is an oring in there, undo the bolts and all should be clear. The plastic maybe cracked so best to have a look over. Cheers Andy Quote Share this post Link to post Share on other sites
thamouse1981 0 Posted December 23, 2004 ok thanks is it necessary to drain coolant or is it just residual in there?? Quote Share this post Link to post Share on other sites
