Windshield Wiper Arm Puller X5 2001

Anyone knows what tool do i need to pull the windsheild wiper arm? the battery puller wasn't strong enough so it seems i need a tool that works with X5. Any pointers are appreciated.

I just did this yesterday and was wondering the same thing.
Figured it out though.
Make sure to take a picture so you can remember how they line up in the rest position with the hood open. You access the caps and nuts on the base of the wipers with the hood open, get those off and then push down on the middle of the wipers themselves right where the skinny part meets the thick part. Push the wiper against the glass and they should pop up from the stud at the base.

Thanks a lot it worked like a charm without using any tools