2000 BMW 528 6 cyl Two Wheel Drive Automatic
My service engine light came on, and I took it to the shop, they told me it was an injector, come to find out that it wasn't. They ran more tests, and told me it was the computer, that it was not responding, as of the results my car is doing a lot of vibrating, can you hel me.
Proper diagnosis is the first step. The repair facility you have visited for the initial repair may not have BMW specific scanning capability, I recommend seeking out one that does. The BMW car club might be a source for a referral.