To check or change the battery on the BMW R1200C, you must remove the gas tank. I would suggest that if you are going to check the battery or replace it you might as well change the air filter as it is under the tank also. The following web site gives you instuctions for removing the tank as well as other ervice related issues. http://parmidge.com/POKIE/ Hope This helps Tank Specific
http://parmidge.com/POKIE/tank.htm
adjust the throttle
Under the motor, tucked up inside the crankcase.
Under the right side chrome air cleaner cover.
In the trunk, below the trunk floor. The trunk floor is a panel that lifts out to access the battery.
The r1200c is one of the few bmw's made where the seat does not unlatch. It is bolted on. U may have remove the saddlebags(if any) and or the side panels under the fuel tank. these pull off from the bottom. .
I purchased the kit along with a the small version Battery Tender that esentially puts a small jack on the side of the frame. It looks a lot like a very small cigarette lighter and is used to power electric heated clothes. It has a wire that fits right into the BMW wiring harness. It allows you to charge the battery through the plug. Works great.
BMW R1200C fuel filters are located inside the fuel tank mounted with the fuel pump assembly. The fuel must be completely drained out the tank and the entire tank must be removed off the bike to access the bolts under the fuel tank. It's made of metal and looks like a typical fuel filter. For such a job it's best to just replace the fuel filter while it's disassembled.
Look here for precise instructions: http://pokiespages.com/pokie/oil.htm
use key to manually unlock. manual unlock will not work.
there are no factory seat heaters on the R1200C. On the dresser R1200CL and CLC, there is, and that is controlled by a rocker switch on the handlebar. The passenger seat heater should have a rocker either on the side of the seat or under the right edge of the seat. off, low, and high. If it is a R1200C, Corbin made a heated seat for this and there is a simple on off switch.
The battery is in the trunk. You have to take out the spareand look to the right. to access it you have to remove the jack and part of the recess that the jack rests in.
Where is the battery terminal on my BMW 528xi