The dilemma before the real subject: How to approach all of you who hunger to jump down throats if there is more than one thread per subject!
But I also know some of you cannot resist commenting to these types of things altho you appear to try as seen in oil and other multiple thread.....threads!
"I MEAN YOU NO HARM!"
I have searched for oil filters, filters, oil change, Mann filters.....etc etc and nowhere (with my decroded mind) do I see straight out answers for the following:
For a 2004 R1100S BCR, do I have a replaceable element in a cannsiter or do I have a spin on 'throw away' filter? (thrown away properly of course)
That SOUNDS stupid enough, but I dont want to take it apart until I know what to order. This is its first oil change (630 miles on bike!) so all this is a learning curve unfortunately. So before all of you murder me, please allow a couple of questions.....

Do I NEED to stick with an element or should I replace it with a spinner? Is it threaded for a spinner if it is originally an element?
Is the K&N (KN 163) style spinner with the built in hex a 'favorable' way to go?
Do I need to buy 'crush washers' or o-rings or other to change the oil and filter?
I have searched and cross referenced some of the oil filter part numbers provided for this bike. Some of the cross reference searches on p/n's do not match up with p/n's some of you have provided - as some of you know.
Just to have fun and hopefully have one thread or post with a bunch of oil filter part numbers for the R1100S - lets resolve as much as possible right here and edit this list as we go if possible.
Most of the following numbers are from you guys but accumulated here: If they are wrong - lets fix them right here for everyone, please? Some of these may be elements and others are spinners(?) - You tell me and put what it is out next to it in a reply.
BMW 11 42 1 258 039
Mobil M-102
Purolator PL 10241
Bosch 72161
Mahle OC84
Mann W712/6
Delco PF53
K&N 163
NAPA 1348
I hope this helps and doesn't offend too many of you.