LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2025 >> 230i >> Repair and Diagnosis >> External Pages >> Different car >> Section 149 (Manual Transmission - Tightening Torques) >> Transmission >> 23 00 Transmission in general

23 00 Transmission in general

WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2004 BMW M3, 2004 BMW 330xi, 2004 BMW 330i, 2004 BMW 330Ci, and 2004 BMW 325xi. However, it is still accessible from the selected car via links, so may be relevant.
TRANSMISSION FASTENER TIGHTENING TORQUE SPECIFICATIONS

  Type Thread Tightening specification Measure
2AZ Transmission to clutch housing All M12   76 Nm
3AZ Reinforcement plate to transmission All M8   23 Nm
4AZ Oil drain plug / filler plug All     50 Nm
  S6S 560G / S6S420G     52 Nm
  GS6-53BZ/DZ GS6-37BZ/DZ M18x1.5 hexagon socket   35 Nm
  GS6-37BZ/DZ / GS6-17BG M12x1.5   25 Nm
  GS7S47BG     40 Nm
5AZ Transmission extension E83 / GS6-37DZ M10   46 Nm


TRANSMISSION FASTENER TIGHTENING TORQUE SPECIFICATIONS

  Type Thread Tightening specification Measure
1AZ Transmission to engine        
Hex screws All M6   9 Nm
  All M8   25 Nm
  All M10   49 Nm
  All M12   74 Nm
Screw with Torx head All M6   9 Nm
  All M8   22 Nm
  All M10   43 Nm
  All M12   72 Nm
  GS7S 47BG M10x55 8.8   43 Nm
  GS7S 47BG M10x42 8.8   42 Nm
  H-transmission / G-transmission M12   73 Nm
Steel screws with Torx head N52 H transmission M8   19 Nm
Steel screws with Torx head N52 H transmission M12   66 Nm
2AZ Transmission to N52 engine aluminium screws marked blue H transmission   Replace screws Jointing torque and angle of rotation must be observed without fail  
  H transmission M10x30 Jointing torque 20 Nm
      Torque angle 90-110°
  H transmission M10x85 Jointing torque 20 Nm
      Torque angle 180-200°
  H transmission M12 Jointing torque 34 Nm
      Torque angle 90-110°