That is a nice sedan! I didn't realize the water pumps could go out so soon with 60k miles or less on the N55s!
It is sad how maintenance times have changed since the 1990s.
My 1995 318i had the water pump done at 12 years and 160,000 miles
My 2001 330i had the water pump upgraded at 10 years and 80,000 miles
both cars still had functioning original factory water pumps and the work was only done because the DIY was simple, parts were cheap and it was preventative maintenance.
Now my 2011 335i with 50,000 miles can need a new water pump after 6 years on the road. BMW must be kidding us with this. #sad