Technical Values - Group 26 - Exhaust System: Notes

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Location	Description	Type	Basic value
Exhaust manifold to cylinder head	External Torx screw, M8 x 27	Initial tightening	15 Nm (11 ftlb.)
Exhaust manifold to cylinder head	External Torx screw, M8 x 27	Torque angle	45° (33 ftlb.)
Exhaust manifold to turbocharger	Hexagon nut, M8 - replace, grease threaded bolts with MicroGleit LP 475	Tightening torque	25 Nm (19 ftlb.)
Catalytic converter to turbocharger	Hexagon nut, M8 - replace	Tightening torque	25 Nm (19 ftlb.)
Clamp on rear silencer	Cheese head bolt, M8 x 50 - replace clamp and screw	Tightening torque	15 Nm (11 ftlb.)
Clamping securing rear silencer to catalytic converter	M10 - replace clamping sleeve	Tightening torque	55 Nm (41 ftlb.)
Tailpipe cover to rear silencer	M8	Tightening torque	30 Nm (22 ftlb.)
Heat shield to cylinder head cover	Screw, M6 x 12	Tightening torque	10 Nm (7.5 ftlb.)
Secondary-air pump to holder	External Torx screw, M6 x 12	Tightening torque	10 Nm (7.5 ftlb.)
Secondary air line to crankcase 1-3	External Torx screw, M6 x 20	Tightening torque	13 Nm (9.5 ftlb.)
Secondary air line to cylinder head, cylinder bank 1-3 and 4-6	External Torx screw, M6 x 20	Tightening torque	13 Nm (9.5 ftlb.)
Connecting line to cylinder head, cylinder bank 4-6	External Torx screw, M6 x 12	Tightening torque	10 Nm (7.5 ftlb.)
Secondary-air valves to lines	External Torx screw, M6 x 16	Tightening torque	10 Nm (7.5 ftlb.)
Secondary-air blower to bracket	External Torx screw, M6 x 12	Tightening torque	10 Nm (7.5 ftlb.)