| Spot On, despite some owners think the car was just being sociable when they first turn the key it does inform you that the oil is too high.
Draining a small amount out is important as the HI oil level can damage the cat. See the note on the oil filler it could be clearer.
If MB are responsible then take the car back and get them to remove the surplus oil it might make them take more care in the future | 
