In Jan 05 I bought a new 04 RT. It is time the 12K service. The dealers are all quoting around $425 for the service and $700 if I include the annual. This is my first Beemer and it is still under warrantee so I want to use the dealer for the first 50K of so. I am a little confused by this annual thing. Do you really need to replace the clutch and brake fluids every 12K?