My Land Rover Discovery only produces heat when the car is moving but when stationary it will not produce heat.

Asked by Jan 02, 2015 at 09:01 AM about the 2004 Land Rover Discovery SE

Question type: General

1 Answer

26,585

The heater core is most likely blocked and in need of flushing. If it can't be cleaned by flushing it will have to be replaced. Under load the water pump provides more pressure for coolant to flow through the heater core, at idle it doesn't and you have a corresponding loss in interior heat. Try to remove the heater hoses from the engine and flushing water through them.

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