Sean & team sorted out my smoking Auris D4D out. Wish I had taken it in ages ago as it had always smoked and agents just tried to talk the problem away. It is now much improved. My fuel economy is better, increased from average (actual measured) range of 14.5 to 15km/l up to a much more respectable 16 to 16.5km/l (and this for an older 2l diesel motor with 210k km on clock….= one very happy customer!) I also no longer cover vehicles behind me in a plume of black smoke.