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Home >> BMW >> 2021 >> 840i 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 200 (Intake Plenum -- Repair (G02)) >> 11 61 Intake Plenum >> 11 61 050 Removing and installing intake plenum (X4 M40i 2022-) >> Installing the intake plenum

Installing the intake plenum

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CAUTION: Improper routing of the positive battery cable. 
Risk of short circuits! 
  • Route the positive battery cable without abrasions and do not trap.
NOTE: RISK OF DAMAGE 
Coolant leaking from the starter motor generator. 
Damage and loss of function of the starter motor generator. 
  • Cover the starter motor generator with suitable, watertight auxiliary materials.
  • Close off line connections with seal plugs.
  • If necessary: Rinse off the coolant leaking from starter motor generator with at least 1 l of water.
NOTE: RISK OF DAMAGE 
Improper routing of cables and wiring harnesses. 
Trapped, crushed or damaged cables may cause short circuits and malfunctions. 
  • Route all cables without abrasions, do not trap and crush.
NOTE: TECHNICAL INFORMATION 
Make sure that the connections are locked correctly. The locks must engage audibly.
G14230122Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Tighten the screws in 360-degree increments.
TIGHTENING TORQUES SPECIFICATION

Intake plenum to cylinder head 
M6 Tightening torque  10 Nm
Fig 1: Intake Plenum Screws Tightening Sequence
G14230120Courtesy of BMW OF NORTH AMERICA, INC.
G14230119Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Intake plenum to support 
M6X25 Tightening torque  8 Nm
G14230116Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Intake plenum to support 
M6X25 Tightening torque  8 Nm
G14230110Courtesy of BMW OF NORTH AMERICA, INC.
WARNING: Incorrect screw connection of positive battery cable. 
Risk of fire! 
  • Ensure that the positive battery cable is screwed with the correct  nut.
TIGHTENING TORQUES SPECIFICATION

Positive battery cable to the starter motor generator 
M8 Tightening torque  19 Nm
G14230109Courtesy of BMW OF NORTH AMERICA, INC.
G14230113Courtesy of BMW OF NORTH AMERICA, INC.
G14230144Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Tank vent line to intake plenum 
Oval-head screw Tightening torque  3 Nm
G14230102Courtesy of BMW OF NORTH AMERICA, INC.
G14230150Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Charge air line to throttle valve 
M6x30 tightening torque  8 Nm
G14230106Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work