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Home >> BMW >> 2003 >> 745i >> Repair and Diagnosis >> Engine Mechanical >> Exhaust >> EXHAUST SYSTEM - TIGHTENING TORQUES - 745i - E65 >> Exhaust System Complete >> 18 00 Exhaust Assembly

18 00 Exhaust Assembly

EXHAUST ASSEMBLY TORQUE SPECIFICATIONS

  Type Thread Tightening specification Measure
1AZ Primary catalytic converter to turbocharger/or jacket pipe to catalytic converter M57 / M57TU M10   42 N.m
  M67     15 N.m
  M30 / M70   Tighten down compression spring with nut uniformly to full extent, then slacken by 1.5 turns 10 N.m
  M51   Preload compression springs with nut to 27+/- 1 mm  
  S50 M10   30 N.m
  S54 / ECE M10   27 N.m
  S54 / US M10   24 N.m
2AZ Exhaust pipe to flow section E23     25 N.m
3AZ Clamp for final muffler All M8   15 N.m
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 N.m
6AZ Rear muffler to intermediate muffler E53 M8   30 N.m
7AZ Vacuum tank to retaining plate E46 / M54 M8   10 N.m
8AZ Exhaust system to exhaust manifold M40 / M42 / M43 / M44 M10   45 N.m
9AZ Primary cat. to exhaust system M57TU / E65     55 N.m