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laguna heater problem?

1994 m reg renault laguna heater not getting hot. lower pipe to matrix from engine bay gets hot, upper pipe only just gets warm,fan only blows cold/lukewarm air out. please help, i'm freezing
mark, January 2010
check u filled the heating tank with water

dan, January 2010
it may have an air lock, some models have plastic bleed screws on the pipes to let air out or you may need to ease one of the heater pipes off. be careful not to scold yourself if doing it the latter way. or the heater matrix may be blocked. attach a hose pipe to the heater hoses & flush it through in both directions. old ones sometimes start to leak after flushing, then they need to be replaced.

jim, January 2010
link Click here to see other fixes for Renault Laguna.