Question about 2005 Peugeot 405

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Have a Peugeot 406 1.8 petrol LX on a 52 plate. Smell of coolant in the cab, no visible leak, top radiator hose hot, both hoses to heater matrix hot, bottom radiator hose cold. Air con works fine.

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It could be a slight leak from the heater matrix (check for damp in the passanger foot well) its self or the thermostat may be sticking this may cause the bottom hose to stay cold. you could try removing the thermostat and running it without it and then putting a rad weld in the coolant system to seal the matrix.


let me know if this helps


cheers big mike

Posted on Jun 11, 2011

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Road

Caution! As with any task that involves opening the cooling system...Coolant and water can become very hot. Hot water and steam can be very dangerous. If you dont feel qualified to perform this task, let a mechanic do it!

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