11 11 Engine Block

2009 BMW 335xi 4D Sedan, AutomaticSECTION 11 11 Engine Block
WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
11 11 Engine Block Fastener Tightening Specification

  Type Thread Tightening specification Measure
1AZ Main bearing screws M10/M20/M30 M10 Replace, wash and oil screws 60 N.m
  M21 M10 Replace, wash and oil screws 65 N.m
  S38/S14/ M40 / M42 / M43 / M43TU / M44 / M50 / M41 / M51 / S50 / S50 US M10 Replace, wash and oil screws  
      Jointing torque 20 N.m
      Torque angle 50°
  M47 / M57 M10 Replace, wash and oil screws  
      Jointing torque 20 N.m
      Torque angle 70°
  M47TU / M57TU M10 Replace, wash and oil screws  
      Jointing torque 22 N.m
      Torque angle 90°
  M67 M12 Replace, wash and oil screws  
      Jointing torque 20 N.m
      Torque angle 200°
  S54 M10 Replace, wash and oil screws  
      Jointing torque 25 N.m
      Torque angle 50°
2AZ Main bearing screws M70 / S70 / M73 M10 Replace screws Do not wash off screw coating  
      Jointing torque 20 N.m
      Torque angle 70°
  M60 / M62 M10/M11 Replace screws Do not wash off screw coating  
    M10/M11 Jointing torque 20 N.m
    M10 Torque angle 70°
    M11 Torque angle 100°
  M54 / M56 / M52TU / M52 / with aluminum engine block M10 Replace, wash and oil screws  
      Jointing torque 20 N.m
      Torque angle 70°
  S52/M52/with cast iron engine block M10 Replace, wash and oil screws  
      Jointing torque 20 N.m
      Torque angle 50°


11 11 Engine Block Fastener Tightening Specification

  Type Thread Tightening specification Measure
3AZ Taper screw mount on main bearing        
Screws and spacer bolts M60 / M62 / M70 / S70 / M73 / S62 M8 Replace screws  
      Jointing torque 20 N.m
      Torque angle 45°
  N62 / N62TU / N73 M8   34 N.m
Threaded support sleeves M70 / M60 / M62 / S70 / M73 / S62     10 N.m
  N62 / N62TU / N73     6N.m
4AZ Struts/bracing shell M67 M10.9   66 N.m
    M10   43 N.m
    M8   22 N.m
5AZ Drain plug for coolant in engine block   M14x1.5   25 N.m
6AZ Main oil gallery seal plugs   M16x1.5   34 N.m
    M 18x1.5   40 N.m
  N62 / N62TU / N73 M 18x1.5 Insert screw with Loctite 25 N.m
  N40 / N42 / N45 / N46 M 16x1.5   36 N.m
Main oil gallery, rear (seal plugs with control valve) M62 / S62 M18x1   10 N.m
7AZ Oil spray nozzle on engine block   M6   10 N.m
Oil spray nozzle screwed into bearing seat (coat thread with Loctite 243) M73 M8x1   5 N.m
Oil spray nozzle to engine block (banjo bolt)   M8x1   12 N.m
8AZ Pressure holding valve to crankcase (1bar) S54 / B32     20 N.m
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.