A couple of weeks ago I noticed that there was a smell of petrol coming through the vents on in the S3. It was only occasionally and seemed to happen after any type of driving, not just after being driven hard or anything.
Now though, it's pretty much smelling every journey I make. And with the recent weather, having the windows open is becoming a pain as the smell is sometimes overpowering.
I've checked for any apparent leaks of any sort and can't see anything. Is there any particular factors that should be considered when a smell of petrol is lingering?