Installing the expansion tank

• Replace rubber plugs (1).

  Parts:  Rubber plugs

  Courtesy of BMW OF NORTH AMERICA, INC.

• Connect expansion tank in the arrow direction to the tandem brake master cylinder.
• Position and tighten the screw (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Retaining screw, expansion tank to tandem brake master cylinder
  Replace screw.	Tightening torque	4 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Connect connectors (1) and lock.

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Connect the BLEEDER UNIT for brake fluid (top up brake fluid).
• Disconnect the brake fluid BLEEDER UNIT
• Install the rear left engine compartment COVER .