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12 12 011 Replacing all spark plugs

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Special Tools Required: 

NOTE: This repair instruction is valid for the following engines:
  • M52/M52TU/M54/M56
  • S52/S50US

Necessary Preliminary Tasks: 

Unscrew and remove spark plugs with special tool 12 1 171 in conjunction with special tool 12 1 200. See 12 12 011 Replacing all spark plugs 

Fig 1: Identifying Special Tool 12 1 171 And 12 1 200
G03164275Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

If special tool 12 1 200 is not used, Tightening torque: M12x1.25 23 +/- 3 N.m and for M14x1.25 30 +/- 3 N.m.