Are you allowed to make a U-turn from the lane you are taking?

In the visible situation, you are in a lane marked with arrow P-8b for a left turn; however, there is another lane to your left intended for the same direction. According to § 87 para. 2, this arrow permits a U-turn only when placed in the extreme left lane. Since you are not in the far-left lane, you are only allowed to turn left from this position.