Ok, so I got my bike back in December 08. Its done 19000 miles and I've noticed that my weephole is starting to drip whilst on longer rides. This is not a major concern at this point as I have a good level in the expansion tank and feel that the leak is possably the system venting but it was serviced at 1770mls at Bobs BMW VA. And I've not had a problem before with coolant. Taking it back to bobs is not an option as I am now on another continent. Any advise greatfully recieved.