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Hello everyone,

hi it's like this that i have an oaudi rs6 c6. it was tuned yesterday but I restored it to original. sometimes the car runs well and the car runs like a rocket. but the last few days it is going extremely badly and sometimes it is going well. I did some times today
orginal
0-100 5.3km / h
0-200 13.5km / h
"tuned"
0-100 4.2
0-200 10-11 sec
but sometimes it did worse than orginal
Like 0-100 5 and 14 to 200

I experience that the car is extremely slow and weak and find no problems or error codes on this. someone else who knows something

If it was only tuned yesterday, shouldn't you just take it back to the tuner?

I am sorry haha, it was tuned long time ago i bought the car 2 years ago. And now i have had problems with power loss and i restored it to orginal and Still same problem with power loss the tuner cant find the problem and he Said something about pipe leak.

Im no expert but on the c5’s, i believe there were common issues with boost leak. Not hear of it for c6’s but symptoms seem same.