Hey guys, I've had my A4 140Tdi for about 3 months now and it's running great, however I'm beginning to think that it's drinking a bit too much fuel, seems incredibly smoky when I floor it and I've had to top up the oil level twice now. Are these symptoms all linked with a dirty EGR? The oil bit worries me the most as I owned a BMW-engined Diesel ZT for four years before this and never once had to top the oil up. And, if this is the case, is there a step-by-step guide anywhere on how to clean the EGR? Or, even better, is there a way to blank it off?