RFCRD wrote:
A clue: just look at the oil puddle in the bottom of that hose. Silicone hose or not, it will eventually soften that hose and cause it to fail under pressure.
RFCD the VW hoses seem to be unaffected by the oil, the last for years as as a rule. My personal experience with VW is 65k plus and never a hose problem, have friends with 100K plus miles and 5 to 10 years and no CAC hose problems. D/C just needs to find the right materials like VW has done.
I've seen this type of hose go well over 10 yrs/750K on bus applications. Actually wonder if they had some rough handling during install causing a split later. It was a stinker to get that hose out/in for cleaning. I could see someone twisting or doubling it over to get it into place. Not good.