Hi, Just visiting from the A6 forum. I have a sept 07 2.0TDI 140 A6 with excessive oil consumption. From new it was using 0.5l in about 1800 miles which I moaned to the dealer about but was told its normal and would improve with use. In fact it gradually worsened and by 17,000 miles was using 0.5l every 300 miles!! They agreed to take it in and did the consumption test during which the light came on after only 180 miles so they accepted it was a problem. After 7.5 weeks in the shop they found an oil control ring was missing and claimed they could find no evidence of it ever having been there as there was no scouring on the bore or bits of ring in the sump. They put a full set of new rings on and gave it back to me "cured". It still uses .5l every 1800 to 2000 miles. Its now done 27,500 miles in total and is showing no signs of improvement but as this is better than the 0.5l per 1000km trigger level I'm stuck with it. This is my first Audi and based on this experience it will be my last!! I've owned various other makes of turbo diesel previously and have never had to put oil in any of them between services. When I bought an Audi the last thing I expected was having to open the bonnet every fortnight! I've put a poll in the A6 C6 forum to try to get a picture of the consumtion most people are getting but I think most A6 people must be running the bigger engines - maybe you A4 guys can all visit this poll and log your consumption too - can the moderators move the poll to somewhere more generic so all 2.0 TDI users can find it?
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