A method for manufacturing a coupled resonator device includes forming a first BAW-device on a first substrate, forming a second BAW-device on a second substrate, and bonding the first and the second BAW-device such that the bonded first and second BAW-device are sandwiched between the first and second substrate. An example may include controlling, by a robotic system, a plurality of motors of the robotic system with a central processing unit. In order to avoid a delay when starting the engine, at least one recess is provided in the cylinder bore which bridges the at least one piston ring in at least one position of the piston and which has a distance to all function openings of the engine configured in the cylinder bore.