Technical Ducato aircon problem

[Cad]

Hi,2012 Ducato aircon will not hold gas for more than a couple of months yet can not find any leakage.Have dye in gas and on three seperate occasions with different service agents they failed to find a problem or detect a leak yet the gas was gone.......Any ideas

 

[varesecrazy]

Hi,2012 Ducato aircon will not hold gas for more than a couple of months yet can not find any leakage.Have dye in gas and on three seperate occasions with different service agents they failed to find a problem or detect a leak yet the gas was gone.......Any ideas

Hi,

lack of leak evidence points to it seeping out of pump seals,
or maybe in unseen areas - dash , etc..,

Charlie

 

[Cad]

Thanks Charlie,going back to Fiat service tomorrow will suggest that,Des

 

[CDK]

Had the same issue for a couple of years until a very experienced Ducato mechanic said there is a manufacturing defect in the armored hose that runs from the compressor to the evaporator.
He replaced it and the system never lost gas again.

 

[Cad]

Update,third time maybe lucky,they say they have found a small leak in an O ring,keep my fingers. Crossed