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Hi,

Writing this with first hand experience,replaced mine about 15k miles ago with a brand new valeo type matrix,now its leaking again!!. After much reserch it seems that firstly your antifreeze mixture should be drained and flushed thoroughly every 2 years/20k miles,if not deposits and rust build up in the engine block that eventually end up in the matrix, as the matrix has ultra thin walls on the tubes its only a matter of time before these deposits settle at the bottom of the u bends and cause corrosion of your nice new matrix,resulting in another leak,more steamy windows and that telltale horrible sweet smell of hot coolant!!

From the information gathered I will be replacing mine again, but only after flushing the whole system thoroughly and BOY DO I MEAN THOROUGHLY!!!with the leaking one still in situe, also fill up with QUALITY antifreeze at the correct proporsions, and change and flush every year,sounds tedious I know, but its definitely not as bad as the living nightmare of takiing that ****ing dashboard out again.BELIEVE ME!!!

Hope this may save someone the misfortune that I have had,GOOD LUCK.

"onedrop"

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