Matt goodbold
Registered User
Hi guys I'm new on here and wondered if you could help. I have a 2007 a6 tdi avant 140. I was driving on the motorway when red warning came on saying oil pressure low .pulled straight over and it went off. When revs reached 2k it came back on so got it towed home . It has plenty of oil and runs fine on tick over apart from every ten seconds or so it makes a hissing noise, which lasts a couple of seconds . No faults come up when plugged in . any advice would be greatly appreciated