I don't know if this will help but I've read it on another website and are going to try it myself - bleeding the coolant system because air bubbles get's trapped. "There are some thinner pipes at the top of the engine and on one of them you will see what looks like a tyre dust cap (thats the bleed valve). Remove the bleed cap and the filler cap and start the engine then slowly fill the header tank with coolant mixture (50% antifreeze coolant and 50% water) and keep checking and top it up it until the engine is properly warmed up... Then you will notice that the water dribbles out from the bleed valve... close it carefully without scalding yourself (rubber glove and a cloth helps). refit the filler cap and check the warning light and stop the engine...You're done!!"
Octavia, November 2010
