I has heard of other dealers changing the gasket during a valve check, but it's not required or needed.
I would tell the dealer not to change the rubber gaskets.
On my Brick engine K bikes I reused the rubber cylinder head gaskets when doing a valve check.
On the K75Ss I changed them when the bikes were around 10 years old but even then it probably was not needed.
On the K1300S it's common to replace the cylinder head gasket during a valve check because it was very time consuming to get at the gasket if it leaked.
If the gasket leaks on the R1200RS it only takes a few minutes to remove the cover and correct the problem.
I would tell the dealer not to change the rubber gaskets.
On my Brick engine K bikes I reused the rubber cylinder head gaskets when doing a valve check.
On the K75Ss I changed them when the bikes were around 10 years old but even then it probably was not needed.
On the K1300S it's common to replace the cylinder head gasket during a valve check because it was very time consuming to get at the gasket if it leaked.
If the gasket leaks on the R1200RS it only takes a few minutes to remove the cover and correct the problem.
Lee
Iowa, USA
2022 R1250RS White Sport
Past BMWs: 2016 R1200RS x 2, 2011 K1300S x 2, 2003 K1200RS x 2, 1991 K75S x 2, 1987 K75T x 2, 1984 R100RT
Iowa, USA
2022 R1250RS White Sport
Past BMWs: 2016 R1200RS x 2, 2011 K1300S x 2, 2003 K1200RS x 2, 1991 K75S x 2, 1987 K75T x 2, 1984 R100RT