18 00 Exhaust Assembly

WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

TIGHTENING TORQUE SPECIFICATION - EXHAUST ASSEMBLY

		Type	Thread	Tightening specification	Measure
1AZ	Primary catalytic converter to turbocharger/or jacket pipe to catalytic converter	M57/M57TU	M10		42 Nm
		M67			15 Nm
		M30/M70		Tighten down compression spring with nut uniformly to full extent, then slacken by 1.5 turns	10 Nm
		M51		Preload compression springs with nut to 27±1 mm
		S50	M10	30 Nm
		S54/ECE	M10		27 Nm
		S54/US	M10		24 Nm
2AZ	Exhaust pipe to flow section	E23			25 Nm
3AZ	Clamp for final muffler	All	M8		15 Nm
4AZ	Catalytic converter on silencer	E36/M42/M43/M44		Version with compression spring: Evenly preload compression springs with nuts to 30 mm
5AZ	Connection of positive and negative leads to E catalytic converter	M73			5 Nm
6AZ	Rear muffler to intermediate muffler	E53	M8		30 Nm
7AZ	Vacuum tank to retaining plate	E46/M54	M8		10 Nm
8AZ	Exhaust system to exhaust manifold	M40/M42/M43/M44	M10		45 Nm
9AZ	Primary cat. to exhaust system	M57TU/E65			55 Nm