Originally Posted by Skyline

There's a difference between an OEM part and a BMW part. While in reality, in most cases it is the identical part, and I certainly would not hesitate to use a Hengst filter in one of my cars, it may not have the BMW logo on it or have come in a BMW box. If they claim that it's not a BMW part, therefore "no good" for some reason, while that may actually hold some water from some perverse legal sense, its total BS as far as I'm concerned.