Hi, The K03 on my 1997 A4 1.8T sport has started leaking oil. Noticed it as a burning smell. Jacked up the car and I could see that the oil was seaping out of the turbo - hence the smell. It was coming from the join between the hot side and cold side of the turbo housing. There are 6 bolts that hold these two sections together and 3 underside ones were very loose! I tightened these but it hasn't fixed the leak. I'll take the turbo off at the weekend for a closer look. Just wondered if anyone has had the same problem? So might be looking for a replacement K03, K03s or K04 - if anyone has one for sale! Thanks.