Mole wrote:
Yes it's a low pressure line. As has been said, all the high pressure ones on "common rail" diesels work under a ferocious pressure. Not sure what the VAG ones are but 1500 Bar (20,000 PSI) is not uncommon! Rather than pressure, you'd just need to know that the rubber hose material (if you can't get an OE replacement) needs to be compatible with today's ultra low sulphur, 5% biofuel diesel.
Got a bit of pipe( from a motor factors) on at moment, but even a VAG specialist doesn't recognise the part ( or find it on schematics ) .Might take it into my honest ( as in he did admit that he couldn't find the part on his system) VW dealer tomorrow and see if it gets recognised . It's got a partial code on it. Or perhaps they replace it with a standard piece . Last resort is a local pipe& hose firm . Next problem is to see why the pipe got pin holes in it . Only logical explanation is that something ( like engine cover ) has pierced it, but it's approx 3.5mm ( inner dia =8mm,outer dia =15mm , hence 15-8/2 =wall thickness). But handling it ,to get part no results in dirty hands( possible breakdown of walls)
Fortunately it's an older PD engine,where Haynes tells me that the fuel is pressurised after this hose .But nice to get it confirmed . TA,ALL
Edit Monday- just back from VAG TPS place in Coventry. Pipe shows on schematic on PC, as fuel pipe ,cut to length . The main dealer that I called into on Friday didn't even check,but quoted a price ( where from I ask) .