hi my brother has just brought a audi A4 2.6 v6 est.
i fitted a fan when we picked it up, so we could drive it home without it over heating.we had to drive no more than 30 miles home,it started fine a few times befor we left and we stopped to get some fuel about 5-10 miles in,again started fine stopped about half mile down the road as it was getting a bit hot so checked the water and it needed filling, once it was full through the system we carried on home again it started fine, got home and about a hour later went ot start it and it just would'nt fire,
we have tryed quite a few different things as i have a little mechanical knowledge.
it has started about 3 out of about 100 times since last saturday but not ran for long, it just dose'nt want to run it sound's like it's trying to but just dose'nt...
please can any one HELP with any ideas of what it might be.
thanks

 

Try working your way through this flowchart.
Diagnostic flowchart for a car that won't start or stalls - Troubleshooting for the starter, spark failure and the fuel pump