well this is something new from the RS3 since the weekend. Has anyone else had this set of problems:
- a strange burning smell, At first I thought it might be oil and as the dealer was closed by the time I called Audi Assist have checked the car over and confirmed its definitely unburned fuel rather than oil. There are no error codes on the diagnostic and the car is by all subjective measures driving fine.
- unburned fuel building up around the exhaust tip (thick black covering, where it was polished to perfection on the weekend)
- the exhaust emitting small messy black blobs of fuel - this is a long trail of small and then larger black blobs on the drive, it's probably on the road too but I haven't been back to check!
I've seen this sort of thing on tuned Westfield's with aggressive race type exhausts - they would leave a black line of unburned fuel along the garage wall (side exit exhausts to make that sound sensible) from cold but from an Audi I'm surprised and I think something has changed.
Audi Assist have forwarded the information on and the RS3 will be going to the dealer for a good check over in the next few days. If anyone has experienced similar or can give any clues where to start the help is appreciated.