took our '04 330i to the dealer to have the service engine soon light checked and it needed a new oxygen sensor. wife got the car back from the dealer and when i went into the garage for something i noticed the horror. swirl marks on the hood!!! the dealer must've given it a wash and messed up the hood. i just washed the car last week by hand and admired how i've been able to keep the black paint looking pretty good for 14 months, no swirl marks. but the dealer washes it once and now swirl marks all over the hood. i feel so sick....i'm going to call the dealer in the morning but no idea how that's gonna go.