Does anyone know if any X type cables are prone to breaking down in warm weather. I read with interest DenisG post 17-6-2015, who changed just about every sensor going, cleaned DPF - v comprehensive overhaul but he still had the problem I am experiencing. It only happens at an outside temperature of 20C and there are no codes. I would think this would be difficult to replicate in a UK garage.Once temperature outside drops to 19C problem disappears.
I am thinking it is a component or cable breakdown at temperature. Anyone have any thoughts? Would appreciate any help.

 

I think this problem is solved. It was a split in an intercooler pipe, which should have been changed when we had the turbo replaced. Since pipe's replacement no problems