From visordown - BMW issues 'service campaign' for R1200GS and GS Adventure Potential fork stanchion problem means BMW has invited thousands of GS owners to bring their bikes back for inspection. BMW HAS issued a begun a mass service campaign for R1200GS and R1200GS Adventure models produced between November 2013 and June 2017 because of concerns over the fork stanchions. BMW’s action comes as a result of mounting pressure from affected owners across the world, with some reporting fork stanchions failing and leaking oil and in extreme cases, separating, often on off-road rides when the fork is dealing with extreme stresses. Anecdotal reports also speak of forks failing while riding on the road. In affected bikes, the problem lies with the clearance between the fork tube and pressurisd top seal plugs. On bikes where the plug fails, forks will start to leak oil but could also begin to creak and offer imprecise control as a result in the amount of play in them.