I have an Audi A3, 1.6 Technik, Petrol, 2011. 44,000 miles. I have had the car from new and i have not had any problems. The last few months it has developed a fault when the car intermittently won't start ( no pattern ) sometimes first thing in the morning or after a trip out in the car, get back in and it won't start. No warning sights it's going to happen or anything different on the dash.
Sometimes just before it cuts out it loses all power and then stalls, again no warning signs on the dash.
Only once has the emission control warning light came on. I took the car to a garage to get this checked out and the car placed onto a diagnostic device. A lot of communication messages came up but no error code.
An auto electrician did so checks and the two sensors either side of the catalytic converter were checked and again showed no error.
when the car does cut out and try to start it again it has a faint burnt smell which is similar to rotten eggs.
Any ideas would be appreciated, Thanks
