BMW R1200R R1150R/T F800 K1200R R1100R/T R1250R RnineT Message Board

This is a new issue for my Rockster (as of yesterday):

I noticed a some oil in the bolt well and trace it to the fill cap. I cleaned it went on a ride and there it was again.

Am I being uber paranoid? Is it just an O-ring? Do I need the after market thingie?

You need to ensure the filler cap, the o-ring AND the socket are absolutely clean of oil before replacing the cap. Otherwise it'll weep.

If it's STILL leaking after you've cleaned them off properly then you may need a new seal - contact the dealer

Riceburner is right...

I had the same problem.

Kleaned the ring properly, but still weeping...

The got a new O-ring....fixed the problem