Hi hoping someone can give an idea, long story short bought Audi a3 2L diesel 2010, fine for a few days then cut out when I came to a stop at the lights, would re start was cranking over and graining, since then has had new start motor, new mafs, new ignition switch and battery has been tested with no issues, after start motor done car lasted 2 weeks no issues then broke down again just cutting out then not re starting but sometimes re starts no issues, issue is so intermittent could go out one day it’s fine could go out an hour after and it won’t start, such a decent car just desperate to get to the bottom of what this issue could be if anyone has experienced similar? cheers