Install the rear section of the coolant return line

• Insert the rear section of the coolant return line (1) and route it correctly.

  Courtesy of BMW OF NORTH AMERICA, INC.

  NOTE: The figure shows the rear of the engine.
  • Tighten down screw (1).
    TIGHTENING TORQUES SPECIFICATION
    
    

    Coolant return line to cylinder head
    M6 x 12	Tightening torque	8 Nm

    Courtesy of BMW OF NORTH AMERICA, INC.

  • Attach the coolant return line in area (2).
  • Connect the coolant return line (2) to the coolant return line (3) and secure it with the hose clamp (1).

    Courtesy of BMW OF NORTH AMERICA, INC.

  • Push the heat shield (1) to the front.

  The heat shield (1) must cover the entire hose of the coolant line.

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALLING THE AUXILIARY COOLANT PUMP .
• Refer to INSTALLING THE INTAKE PLENUM .
• Refer to INSTALLING THE TANK VENT VALVE .
• Refer to INSTALLING CONTROL UNIT BRACKET .
• Refer to INSTALLING THE DME CONTROL UNIT .
• Refer to FASTENING CHARGE AIR LINE TO THE THROTTLE BODY .
• Refer to CONNECTING THE COOLANT LINES FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
• Refer to CONNECTING THE COOLANT LINES FOR THE HIGH-TEMPERATURE COOLANT CIRCUIT .
• Refer to FILLING THE LOW-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
• Refer to FILLING THE HIGH-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
• Refer to INSTALLING CATALYTIC CONVERTER .
• Refer to REPLACING THE OXYGEN MONITOR SENSOR .
• Refer to REPLACING THE LAMBDA OXYGEN SENSOR .
• Refer to PREPARING THE EXHAUST SYSTEM .
• Refer to INSTALLING THE COMPLETE EXHAUST SYSTEM .
• Refer to INSTALLING THE CONNECTING SUPPORTS ON THE TUNNEL .
• Refer to INSTALLING FAN COWL .
• Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
• Refer to INSTALLING FRONT CROSS CONNECTION .
• Refer to INSTALLING FRONT-END STRUT ON LEFT AND RIGHT .
• Refer to INSTALLING THE COVER ON THE LEFT AND RIGHT IN THE ENGINE COMPARTMENT AT THE TOP .
• Refer to INSTALLING THE RESONATOR WITH THE TOP CLEAN AIR PIPE .
• Refer to INSTALLING INTAKE SILENCER HOUSING .
• Refer to INSTALLING CENTER BULKHEAD LOWER PART .
• Refer to INSTALLING THE CENTER COWL UPPER PART .
• Refer to INSTALLING TENSION STRUT ON SHOCK TOWER .
• Refer to INSTALLING WINDSHIELD PANEL COVER .
• Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
• Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
• Refer to INSTALLING ACOUSTIC COVER AT REAR .
• Refer to INSTALLING THE FRONT HOOD SEAL AT THE REAR .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to INSTALLING THE THRUST FIELD .
• Refer to INSTALLING THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
• Refer to CONNECTING NEGATIVE BATTERY CABLE .
• Refer to VENTING THE LOW-TEMPERATURE COOLING SYSTEM .
• Refer to VENTING THE HIGH-TEMPERATURE COOLANT SYSTEM .