mate, Im having the same problem on mine. It has come from too much oil being put in, so it is burning the excess. There is apparently a valve around the oil tank which simply drains the oil, im struggling to find where mine is as they are different on different cars. It is dead simple to do,..if you can find the valve!..I wouldnt go to a dealer if i was you, bit of a scam chargin that much money!
Adam
August 2005