Remember that DC resistance (what you measured) is only one of many vital parameters of the coils. Turns-ratio and inductance are very important as well.
BMW does not publish these specs (I think), so it is very hard to match a replacement.
Keep an eye on your setup and keep us posted about your experience. If the coils are not right you could have poor spark under some conditions or you could be stressing the coil driver in the ECM.