After it's expired on yours, i'd recommend you to stay away from dealer for regular services, unless it's recall or free services.
As for whom should you go to, pleaser refer to this one:
Click here
• independent BMW service professionals -192.168.100.91- ♂ (21 bytes) () 10/08/2009 postreply 13:57:30
• Thanks, this is helpful. My car has tubor, I have to find some -sleepy_bear- ♂ (48 bytes) () 10/08/2009 postreply 15:02:19
• Thanks, man. Good suggestions for evry one. -sleepy_bear- ♂ (0 bytes) () 10/08/2009 postreply 14:00:04