Method for manufacturing a fluid circuit comprising: - at least one first hollow tubular body comprising at least one first open end and a second open end that are fluidly connected, the first hollow tubular body extending straight along a first fitting axis, - at least one connector comprising at least one first open end and a second open end that are fluidly connected, the first open end of the first hollow tubular body being connected to the first open end of the connector in a sealed manner along a first fitting axis, - one of said first open ends (11, 41) being a male type end, the other of said first open ends (11, 41) being a female type so as to permit longitudinal fitting along the first fitting axis, - each first open end (11, 41) comprises a longitudinal abutment surface (13, 43), the longitudinal abutment surfaces (13, 43) cooperating by complementarity of shapes so as to form a cylindrical portion extending along the first fitting axis; the method comprises: - a step of forming the longitudinal abutment surface at the first open end of the first hollow tubular body, the longitudinal abutment surface extending in an interface plane that is inclined by a first abutment angle (Θ1) with respect to the plane orthogonal to the first fitting axis, - a step of angular orientation of the longitudinal abutment surface of the first hollow tubular body in a bending machine at a reference angular position, - a step of bending a longitudinal portion of the first hollow tubular body in the reference angular position, and - a step of sealed connecting of the first open end of the first hollow tubular body to the first open end of the connector in a sealed manner along the first fitting axis, the longitudinal abutment surfaces (13, 43) coming into contact in an interface plane that is inclined by a first abutment angle (Θ1) with respect to the plane orthogonal to the first fitting axis so as to avoid angular misalignment, the first open end of the first hollow tubular body being oriented with respect to the first open end of the connector according to a first predetermined angular position (β1) with respect to the first fitting axis. - at least one first hollow tubular body comprising at least one first open end and a second open end that are fluidly connected, the first hollow tubular body extending straight along a first fitting axis, - at least one connector comprising at least one first open end and a second open end that are fluidly connected, the first open end of the first hollow tubular body being connected to the first open end of the connector in a sealed manner along a first fitting axis, - one of said first open ends (11, 41) being a male type end, the other of said first open ends (11, 41) being a female type so as to permit longitudinal fitting along the first fitting axis, - each first open end (11, 41) comprises a longitudinal abutment surface (13, 43), the longitudinal abutment surfaces (13, 43) cooperating by complementarity of shapes so as to form a cylindrical portion extending along the first fitting axis; - a step of forming the longitudinal abutment surface at the first open end of the first hollow tubular body, the longitudinal abutment surface extending in an interface plane that is inclined by a first abutment angle (Θ1) with respect to the plane orthogonal to the first fitting axis, - a step of angular orientation of the longitudinal abutment surface of the first hollow tubular body in a bending machine at a reference angular position, - a step of bending a longitudinal portion of the first hollow tubular body in the reference angular position, and - a step of sealed connecting of the first open end of the first hollow tubular body to the first open end of the connector in a sealed manner along the first fitting axis, the longitudinal abutment surfaces (13, 43) coming into contact in an interface plane that is inclined by a first abutment angle (Θ1) with respect to the plane orthogonal to the first fitting axis so as to avoid angular misalignment, the first open end of the first hollow tubular body being oriented with respect to the first open end of the connector according to a first predetermined angular position (β1) with respect to the first fitting axis.