A month or so ago check engine light came on in my 318is (4 cyl), and at the dealership they told me it's like $400 and that it had do with the exhaust/polution, whatever, and that I don't really have to fix it. I didn't, cos I knew I had to do a mandatory emission test a few days later. The car passed with flying colors, they even told me my emissions were "excellent". So, of course I didn't fix the thing.
Cos my Check Engine light has been constantly on since, I got the reset tool from Peake research, and it reported TWO fault codes, so I'd like to know if anyone knows what they are, and how serious it is. Cos back at the dealership they only told me there was one problem, so I'm wondering if these two are combined, or if a new one popped up in the meantime. Other than Check Engine light, the car behaves perfectly, a few weeks ago I even had a 1500 mile trip.
I am quoting the code faults from the manual:
1. "Fuel trim, QL additive"
2. Secondary air control