2003 325i with 44,900 miles and the Check Engine Soon check out by local BMW Service shows "Faulty VANOS Unit DME FC28B6, 28BA, 28B8 VANOS adjustment unit improper function". Here' s my question: How reliable is the dual vanos on this model? How often will this be a problem? every 20K miles?
I purchased an extended warranty to cover 3 years 36K and the car had 36K miles on it when purchased. Oil change was performed by BMW dealer 600 miles before this light came on. I find it hard to believe the VANOS would be bad already with this mileage. thoughts?