Renault laguna whine. I have a renault Laugna 1.9DCi that has developed a whine when accelerating. It usually disapears when de accelerating. It also seems to get worse as the engine heats up. It has been fitted with a new intercooler (50k ago) and the turbo depresserised (renault's fix!!!). Does anyone have any ideas as to the possible cause and fix??? Thanks AntRn